UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 20-F

Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act:

Indicate the number of outstanding shares of each of the issuer's classes of capital or common stock as of the close of the period covered by the Annual Report:

66,657,745 ordinary shares were issued and outstanding as of December 31, 2018.

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.

Note—checking the box above will not relieve any registrant required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 from their obligations under those sections.

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or an emerging growth company. See definition of "large accelerated filer,""accelerated filer," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards^† provided pursuant to Section 13(a) of the Exchange Act. o

†The term "new or revised financial accounting standard" refers to any update issued by the Financial Accounting Standards Board to its Accounting Standards Codification after April 5, 2012.

Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing:

If "Other" has been checked in response to the previous question, indicate by check mark which financial statement item the registrant has elected to follow.

If this is an Annual Report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). o

This annual report on Form 20-F contains our audited consolidated statements of operations data for the years ended December 31, 2018, 2017 and 2016 and our audited consolidated balance sheet data as of December 31, 2018 and 2017. Our consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles, or U.S. GAAP.

This annual report also includes audited consolidated income statement data for the years ended December 31, 2018, 2017 and 2016 and the audited consolidated statements of financial position data as of December 31, 2018 and 2017 for each of our three non-consolidated joint ventures, Shanghai Hutchison Pharmaceuticals, Hutchison Baiyunshan and Nutrition Science Partners, which are accounted for using the equity accounting method. These consolidated financial statements have been prepared in accordance with International Financial Reporting Standards, or IFRS, as issued by the International Accounting Standard Board, or IASB.

Unless the context requires otherwise, references herein to the "company," "Chi-Med," "we," "us" and "our" refer to Hutchison China MediTech Limited and its consolidated subsidiaries and joint ventures.

Our reporting currency is the U.S. dollar. In addition, this annual report also contains translations of certain foreign currency amounts into U.S. dollars for the convenience of the reader. Unless otherwise stated, all translations of pound sterling into U.S. dollars were made at £1.00 to $1.27, all translations of RMB into U.S. dollars were made at RMB6.84 to $1.00 and all translations of HK dollars into U.S. dollars were made at HK$7.80 to $1.00, which are the exchange rates used in our audited consolidated financial statements as of December 31, 2018. We make no representation that the pound sterling, HK dollar or U.S. dollar amounts referred to in this annual report could have been or could be converted into U.S. dollars, pounds sterling or HK dollars, as the case may be, at any particular rate or at all.

We own or have been licensed rights to trademarks, service marks and trade names for use in connection with the operation of our business, including, but not limited to, our trademark Chi-Med. All other trademarks, service marks or trade names appearing in this annual report that are not identified as marks owned by us are the property of their respective owners.

Solely for convenience, the trademarks, service marks and trade names referred to in this annual report are listed without the ®, (TM) and (sm) symbols, but we will assert, to the fullest extent under applicable law, our applicable rights in these trademarks, service marks and trade names.

This annual report contains forward-looking statements made under the "safe harbor" provisions of the U.S. Private Securities Litigation Reform Act of 1995. These statements relate to future events or to our future financial performance and involve known and unknown risks, uncertainties and other factors which may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. The

words "anticipate," "assume," "believe," "contemplate," "continue," "could," "estimate," "expect," "goal," "intend," "may," "might," "objective," "plan," "potential," "predict," "project," "positioned," "seek," "should," "target," "will," "would," or the negative of these terms or other similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. These forward-looking statements are based on current expectations, estimates, forecasts and projections about our business and the industry in which we operate and management's beliefs and assumptions, are not guarantees of future performance or development and involve known and unknown risks, uncertainties and other factors. These forward-looking statements include statements regarding:

Actual results or events could differ materially from the plans, intentions and expectations disclosed in the forward-looking statements we make. As a result, any or all of our forward-looking statements in this annual report may turn out to be inaccurate. We have included important factors in the cautionary statements included in this annual report on Form 20-F, particularly in the section of this annual report on Form 20-F titled "Risk Factors," that we believe could cause actual results or events to differ materially from the forward-looking statements that we make. We may not actually achieve the plans, intentions or expectations disclosed in our forward-looking statements, and you should not place undue reliance on our forward-looking statements. Moreover, we operate in a highly competitive and rapidly changing environment in which new risks often emerge. It is not possible for our management to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make.

You should read this annual report and the documents that we reference herein and have filed as exhibits hereto completely and with the understanding that our actual future results may be materially different from what we expect. The forward-looking statements contained herein are made as of the date of this annual report, and we do not assume any obligation to update any forward-looking statements except as required by applicable law.

In addition, this annual report contains statistical data and estimates that we have obtained from industry publications and reports generated by third-party market research firms. Although we believe that the publications, reports and surveys are reliable, we have not independently verified the data and cannot guarantee the accuracy or completeness of such data. You are cautioned not to give undue weight to this data. Such data involves risks and uncertainties and are subject to change based on various factors, including those discussed above.

The following tables set forth our selected consolidated financial data. We have derived the selected consolidated statements of operations data for the years ended December 31, 2018, 2017 and 2016 and the selected consolidated balance sheet data as of December 31, 2018 and 2017 from our audited consolidated financial statements, which were prepared in accordance with U.S. GAAP and are included elsewhere in this annual report. You should read this data together with such consolidated financial statements and the related notes and Item 5 "Operating and Financial Review and Prospects." Our historical results are not necessarily indicative of the results to be expected for any future periods. All of our operations are continuing operations and we have not proposed or paid dividends in any of the periods presented.

The following selected consolidated financial data for the years ended December 31, 2015 and 2014 and as of December 31, 2016, 2015 and 2014 have been derived from our audited consolidated financial statements for those years, which were prepared in accordance with U.S. GAAP and are not included in this annual report.

	Year Ended December 31,

	2018			2017			2016			2015			2014
	(in thousands, except share and per share data)
Consolidated statements of operations data:
Revenues
Goods—third parties	$	156,234		$	194,860		$	171,058		$	118,113		$	59,162
—related parties		8,306			8,486			9,794			8,074			7,823
Services—commercialization—third parties		11,660			1,860			—			—			—
—collaboration research and development—third parties		17,681			16,858			16,513			24,848			7,336
—research and development—third parties		—			—			355			2,573			3,696
—research and development—related parties		7,832			9,682			8,429			5,383			4,312
Other collaboration revenue—royalties—third parties		261			—			—			—			—
—licensing—third parties		12,135			9,457			9,931			19,212			5,000

Total revenues		214,109			241,203			216,080			178,203			87,329

Operating expenses
Costs of goods—third parties		(129,346	)		(168,331	)		(149,132	)		(104,859	)		(53,477	)
Costs of goods—related parties		(5,978	)		(6,056	)		(7,196	)		(5,918	)		(5,372	)
Costs of services—commercialization—related parties		(8,620	)		(1,433	)		—			—			—
Research and development expenses		(114,161	)		(75,523	)		(66,871	)		(47,368	)		(29,914	)
Selling expenses		(17,736	)		(19,322	)		(17,998	)		(10,209	)		(4,112	)
Administrative expenses		(30,909	)		(23,955	)		(21,580	)		(19,620	)		(12,713	)

Total operating expenses		(306,750	)		(294,620	)		(262,777	)		(187,974	)		(105,588	)

Loss from operations		(92,641	)		(53,417	)		(46,697	)		(9,771	)		(18,259	)
Other income/(expense)
Interest income		5,978			1,220			502			451			559
Other income		1,798			808			609			386			20
Interest expense		(1,009	)		(1,455	)		(1,631	)		(1,404	)		(1,516	)
Other expense		(781	)		(692	)		(139	)		(202	)		(761	)

Total other income/(expense)		5,986			(119	)		(659	)		(769	)		(1,698	)
Loss before income taxes and equity in earnings of equity investees		(86,655	)		(53,536	)		(47,356	)		(10,540	)		(19,957	)
Income tax expense		(3,964	)		(3,080	)		(4,331	)		(1,605	)		(1,343	)
Equity in earnings of equity investees, net of tax		19,333			33,653			66,244			22,572			15,180

Net (loss)/income from continuing operations		(71,286	)		(22,963	)		14,557			10,427			(6,120	)
Income from discontinued operations, net of tax		—			—			—			—			2,034

Net (loss)/income		(71,286	)		(22,963	)		14,557			10,427			(4,086	)
Less: Net income attributable to non-controlling interests		(3,519	)		(3,774	)		(2,859	)		(2,434	)		(3,220	)

Net (loss)/income attributable to the company		(74,805	)		(26,737	)		11,698			7,993			(7,306	)

Accretion on redeemable non-controlling interests		—			—			—			(43,001	)		(25,510	)

Net (loss)/income attributable to ordinary shareholders of the company	$	(74,805	)	$	(26,737	)	$	11,698		$	(35,008	)	$	(32,816	)

(Losses)/earnings per share attributable to ordinary shareholders of the company—basic ($ per share)
Continuing operations	$	(1.13	)	$	(0.43	)	$	0.20		$	(0.64	)	$	(0.64	)
Discontinued operations		—			—			—			—		$	0.02
(Losses)/earnings per share attributable to ordinary shareholders of the company—diluted ($ per share)
Continuing operations	$	(1.13	)	$	(0.43	)	$	0.20		$	(0.64	)	$	(0.64	)
Discontinued operations		—			—			—			—		$	0.02
Number of shares used in per share calculation—basic		66,426,382			61,717,171			59,715,173			54,659,315			52,563,387
Number of shares used in per share calculation—diluted		66,426,382			61,717,171			59,971,050			54,659,315			52,563,387
Net (loss)/income	$	(71,286	)	$	(22,963	)	$	14,557		$	10,427		$	(4,086	)
Other comprehensive (loss)/income:
Foreign currency translation (loss)/gain		(6,626	)		10,964			(10,722	)		(5,557	)		(2,712	)

Total comprehensive (loss)/income		(77,912	)		(11,999	)		3,835			4,870			(6,798	)
Less: Comprehensive income attributable to non-controlling interests		(2,566	)		(5,033	)		(1,427	)		(1,732	)		(2,944	)

Total comprehensive (loss)/income attributable to the company	$	(80,478	)	$	(17,032	)	$	2,408		$	3,138		$	(9,742	)

We have three non-consolidated joint ventures—Shanghai Hutchison Pharmaceuticals, Hutchison Baiyunshan and Nutrition Science Partners. The following selected income statement and cash flow data of each such joint venture for the years ended December 31, 2018, 2017 and 2016 and the following selected financial position data of each such joint venture as of December 31, 2018 and 2017 have been derived from their respective audited consolidated financial statements, which were prepared in accordance with IFRS as issued by the IASB and are included elsewhere in this annual report. You should read this data together with such consolidated financial statements of our non-consolidated joint ventures and the related notes and Item 5 "Operating and Financial Review and Prospects." The following selected consolidated financial data for the years ended December 31, 2015 and 2014 and as of December 31, 2016, 2015 and 2014 have been derived from their respective audited consolidated financial statements, which were prepared in accordance with IFRS as issued by the IASB and are not included in this annual report. The historical results of our joint ventures for any prior period are not necessarily indicative of results to be expected in any future periods.

Our equity in earnings of Shanghai Hutchison Pharmaceuticals reported under U.S. GAAP was $29.9 million, $27.8 million, $60.3 million, $15.7 million and $13.2 million for the years ended December 31, 2018, 2017, 2016, 2015 and 2014, respectively.

Our equity in earnings of Hutchison Baiyunshan reported under U.S. GAAP was $8.4 million, $10.4 million, $10.2 million, $10.7 million and $10.4 million for the years ended December 31, 2018, 2017, 2016, 2015 and 2014, respectively.

Our equity in loss of Nutrition Science Partners reported under U.S. GAAP was $19.1 million, $4.6 million, $4.2 million, $3.8 million and $8.4 million for the years ended December 31, 2018, 2017, 2016, 2015 and 2014, respectively.

We may need substantial funding for our product development programs and commercialization efforts. If we are unable to raise capital on acceptable terms when needed, we could incur losses and be forced to delay, reduce or eliminate such efforts.

We expect our expenses to increase significantly in connection with our ongoing activities, particularly as we or our collaboration partners advance the clinical development of our eight clinical drug candidates which are currently in active or completed clinical studies in various countries. We will incur significant expenses as we continue research and development and initiate additional clinical trials of, and seek regulatory approval for, these and other future drug candidates. In addition, we expect to incur significant commercialization expenses related to product manufacturing, marketing, sales and distribution of Elunate (the brand name for fruquintinib) now that it has been approved in China and for any of our other drug candidates that may be approved in the future. In particular, the costs that may be required for the manufacture of any drug candidate that receives regulatory approval may be substantial as we may have to modify or increase the production capacity at our current manufacturing facilities or contract with third-party manufacturers. We may also incur expenses as we create additional infrastructure and expand our U.S.-based clinical team at our U.S. subsidiary, Hutchison MediPharma (US) Inc., which opened an office in New Jersey in early 2018 to support our operations. Accordingly, we may need to obtain substantial funding in connection with our continuing operations through public or private equity offerings, debt financings, collaborations or licensing arrangements or other sources. If we are unable to raise capital when needed or on attractive terms, we could incur losses and be forced to delay, reduce or eliminate our research and development programs or any future commercialization efforts.

We believe that our expected cash flow from operations, including dividends from our Commercial Platform and milestone and other payments from our collaboration partners, our cash and cash equivalents and short-term investments as well as our unutilized bank facilities as of December 31, 2018, including: (i) the HK$234.0 million ($30.0 million) revolving credit facility with The Hongkong and Shanghai Banking Corporation Limited, or HSBC, (ii) the HK$351.0 million ($45.0 million) revolving credit facility with Bank of America N.A., (iii) the HK$156.0 million ($20.0 million) revolving credit facility with Deutsche Bank AG, Hong Kong Branch, or Deutsche Bank AG, and (iv) the HK$190.0 million ($24.4 million) 18-month revolving loan facility with Scotiabank (Hong Kong) Limited, or Scotiabank, will enable us to fund our operating expenses, debt service and capital expenditure requirements for at least the next 12 months. We have based this estimate on assumptions that may prove to be wrong, and we could use our capital resources sooner than we currently expect. Our future capital requirements will depend on many factors, including:

Identifying potential drug candidates and conducting pre-clinical testing and clinical trials is a time-consuming, expensive and uncertain process that may take years to complete, and our commercial revenue will be derived from sales of products that we do not expect to be commercially available until we receive regulatory approval, if at all. We may never generate the necessary data or results required for certain drug candidates to obtain regulatory approval, and even if approved, they may not achieve commercial success. Accordingly, we will need to continue to rely on financing to achieve our business objectives. Adequate financing may not be available to us on acceptable terms, or at all.

If the CK Hutchison group ceases to own a majority stake in our company, we may incur significantly higher borrowing costs.

Hutchison Whampoa Limited, a wholly owned subsidiary of CK Hutchison, has historically guaranteed certain of our bank borrowings. The CK Hutchison group does not currently guarantee any of our loans and has no obligation to enter into new guarantees in the future. CK Hutchison has, however, issued letters of awareness to our current lenders and committed not to reduce its shareholding to less than 40% of our issued share capital while such loans are outstanding. We may incur higher funding costs if we do not have the benefit of the CK Hutchison group guarantees or other similar arrangements by the CK Hutchison group.

Raising capital may cause dilution to our shareholders, restrict our operations or require us to relinquish rights to technologies or drug candidates.

We expect to finance our cash needs in part through cash flow generated by our Commercial Platform, and we may also rely on raising capital through a combination of public or private equity offerings, debt financings and/or license and development agreements with collaboration partners. In addition, we may seek capital due to favorable market conditions or strategic considerations, even if we believe we have sufficient funds for our current or future operating plans. To the extent that we raise capital through the sale of equity or convertible debt securities, the ownership interest of our shareholders may be materially diluted, and the terms of such securities could include liquidation or other preferences that adversely affect the rights of our existing shareholders. Debt financing and preferred equity financing, if available, may involve agreements that include restrictive covenants that limit our ability to take specified actions, such as incurring additional debt, making capital expenditures or declaring dividends. Additional debt financing would also result in increased fixed payment obligations.

In addition, if we raise funds through collaborations, strategic partnerships or marketing, distribution or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs or drug candidates or grant licenses on terms that may not be favorable to us. We may also lose control of the development of drug candidates, such as the pace and scope of clinical trials, as a result of such third-party arrangements. If we are unable to raise funds through equity or debt financings when needed, we may be required to delay, limit, reduce or terminate our product development or future commercialization efforts or grant rights to develop and market drug candidates that we would otherwise prefer to develop and market ourselves.

Our existing and any future indebtedness could adversely affect our ability to operate our business.

Our outstanding indebtedness combined with current and future financial obligations and contractual commitments, including any additional indebtedness beyond our current facilities with HSBC, Scotiabank, Bank of America N.A. and Deutsche Bank AG could have significant adverse consequences, including:

We intend to satisfy our current and future debt service obligations with our existing cash and cash equivalents and short-term investments. Nevertheless, we may not have sufficient funds, and may be unable to arrange for financing, to pay the amounts due under our existing debt. Failure to make payments or comply with other covenants under our existing debt instruments could result in an event of default and acceleration of amounts due.

Historically, our in-house research and development division, known as our Innovation Platform, has not generated significant profits or has operated at a net loss, and our future profitability is dependent on the successful commercialization of our drug candidates, including fruquintinib which received approval from the National Medical Products Administration of China, or NMPA (formerly known as the China Food and Drug Administration), in September 2018.

To date, fruquintinib is our only drug candidate that has been approval for sale, and it has only been approved for sale for the treatment of third-line metastatic colorectal cancer patients in China. We do not expect our Innovation Platform to be significantly profitable unless and until we successfully commercialize fruquintinib and/or our other drug candidates. We expect to incur significant sales and marketing costs as we prepare to commercialize our drug candidates.

Successful commercialization of our drug candidates is subject to many risks. Fruquinitinib is currently marketed by our partner, Eli Lilly. Under our recently amended license and collaboration agreement with Eli Lilly, we may be granted promotion and distribution rights to fruquintinib for certain provinces in the future. We have never, as an organization, launched or commercialized any of our drug candidates, and there is no guarantee that we will be able to successfully commercialize any of our drug candidates for their approved indications. There are numerous examples of failures to meet expectations of market potential, including by pharmaceutical companies with more experience and resources than us. While we have an established network of medical sales representatives in China operated by our Commercial Platform, we will need to refine and further develop an oncology-focused sales team in order to successfully commercialize our drug candidates. Even if we are successful in developing our commercial team, there are many factors that could cause the commercialization of fruquintinib or our other drug candidates to be unsuccessful, including a number of factors that are outside our control. In the case of fruquintinib, for example, the third-line metastatic colorectal cancer patient population in China may be smaller than we estimate or physicians may be unwilling to prescribe, or patients are unwilling to take, fruquintinib due to,

among other reasons, its pricing or the fact that it is not included in the Medicines Catalogue for the National Basic Medical Insurance, Labor Injury Insurance and Childbirth Insurance Systems in China, or the National Medicines Catalogue. Additionally, any negative development for fruquintinib in clinical development in additional indications, or in regulatory processes in other jurisdictions, may adversely impact the commercial results and potential of fruquintinib in China and globally. Thus, significant uncertainty remains regarding the commercial potential of fruquintinib.

We may not achieve profitability after generating drug sales from fruquintinib and/or our other drug candidates, if ever. If the commercialization of fruquintinib and/or our other drug candidates is unsuccessful or perceived as disappointing, our stock price could decline significantly and the long-term success of the product and our company could be harmed.

All of our drug candidates, other than fruquintinib for one indication in China, are still in development. If we are unable to obtain regulatory approval and ultimately commercialize our drug candidates, or if we experience significant delays in doing so, our business will be materially harmed.

All of our drug candidates are still in development, including fruquintinib which has been approved for the treatment of third-line metastatic colorectal cancer patients in China but is still in development in the United States for the treatment of metastatic colorectal cancer and in China and the United States for other cancer indications.

Although we receive certain payments from our collaboration partners, including upfront payments and payments for achieving certain development, regulatory or commercial milestones, for certain of our drug candidates, our ability to generate revenue from our drug candidates is dependent on their receipt of regulatory approval for and successfully commercializing such products, which may never occur. Each of our drug candidates in development will require additional pre-clinical and/or clinical trials, regulatory approval in multiple jurisdictions, manufacturing supply, substantial investment and significant marketing efforts before we generate any revenue from product sales. The success of our drug candidates will depend on several factors, including the following:

If we do not achieve one or more of these factors in a timely manner or at all, we could experience significant delays or an inability to successfully commercialize our drug candidates, which would materially harm our business.

Our primary approach to the discovery and development of drug candidates focuses on the inhibition of kinases, some of which are unproven.

A primary focus of our research and development efforts is on identifying kinase targets for which drug compounds previously developed by others affecting those targets have been unsuccessful due to limited selectivity, off-target toxicity and other problems. We then work to engineer drug candidates which have the potential to have superior efficacy, safety and other features as compared to such prior drug compounds. We also focus on developing drug compounds with the potential to be global best-in-class/next-generation therapies for validated kinase targets.

Even if we are able to develop compounds that successfully target the relevant kinases in pre-clinical studies, we may not succeed in demonstrating safety and efficacy of the drug candidates in clinical trials. As a result, our efforts may not result in the discovery or development of drugs that are commercially viable or are superior to existing drugs or other therapies on the market. While the results of pre-clinical studies and early-stage clinical trials have suggested that certain of our drug candidates may successfully inhibit kinases and may have significant utility in several cancer indications, potentially in combination with other cancer drugs and with chemotherapy, we have not yet demonstrated efficacy and safety for many of our drug candidates in later stage clinical trials.

We may expend our limited resources to pursue a particular drug candidate or indication and fail to capitalize on drug candidates or indications that may be more profitable or for which there is a greater likelihood of success.

Because we have limited financial and managerial resources, we must limit our research programs to specific drug candidates that we identify for specific indications. As a result, we may forego or delay pursuit of opportunities with other drug candidates or for other indications that later prove to have greater commercial potential. Our resource allocation decisions may cause us to fail to capitalize on viable commercial drugs or profitable market opportunities. In addition, if we do not accurately evaluate the commercial potential or target market for a particular drug candidate, we may relinquish valuable rights to that drug candidate through collaboration, licensing or other royalty arrangements when it would have been more advantageous for us to retain sole development and commercialization rights to such drug candidate.

We have no history of commercializing our internally developed drugs, which may make it difficult to evaluate our future prospects.

The operations of our Innovation Platform have been limited to developing and securing our technology and undertaking pre-clinical studies and clinical trials of our drug candidates, either independently or with our collaboration partners. We have a limited history of successfully completing development of our drug candidates, obtaining marketing approvals, manufacturing our internally developed drugs at a commercial scale. In addition, we have not yet demonstrated the ability to successfully conduct sales and regulatory activities necessary for successful product commercialization of our drug candidates. While we believe we will be able to successfully leverage our existing Commercial Platform to launch our drug candidates in China once approved, any predictions about our future success or viability may not be as accurate as they could be if we had an extensive history of successfully developing and commercializing our internally developed drug candidates.

The regulatory approval processes of the U.S. Food and Drug Administration, or FDA, NMPA and comparable authorities are lengthy, time consuming and inherently unpredictable, and if we are ultimately unable to obtain regulatory approval for our drug candidates, our ability to generate revenue will be materially impaired.

Our drug candidates and the activities associated with their development and commercialization, including their design, testing, manufacture, safety, efficacy, recordkeeping, labeling, storage, approval, advertising, promotion, sale, distribution, import and export are subject to comprehensive regulation by the FDA, NMPA and other regulatory agencies in the United States and China and by comparable authorities in other countries. Securing regulatory approval requires the submission of extensive pre-clinical and clinical data and supporting information to the various regulatory authorities for each therapeutic indication to establish the drug candidate's safety and efficacy. Securing regulatory approval also requires the submission of information about the drug manufacturing process to, and inspection of manufacturing facilities by, the relevant regulatory authority. Our drug candidates may not be effective, may be only moderately effective or may prove to have undesirable or unintended side effects, toxicities or other characteristics that may preclude our obtaining regulatory approval or prevent or limit commercial use.

The process of obtaining regulatory approvals in the United States, China and other countries is expensive, may take many years if additional clinical trials are required, if approval is obtained at all, and can vary substantially based upon a variety of factors, including the type, complexity and novelty of the drug candidates involved. Changes in regulatory approval policies during the development period, changes in or the enactment of additional statutes or regulations, or changes in regulatory review for each submitted New Drug Application, or NDA, pre-market approval or equivalent application types, may cause delays in the approval or rejection of an application. The FDA, NMPA and comparable authorities in other countries have substantial discretion in the approval process and may refuse to accept any application or may decide that our data are insufficient for approval and require additional pre-clinical, clinical or other studies. Our drug candidates could be delayed in receiving, or fail to receive, regulatory approval for many reasons, including the following:

In addition, even if we were to obtain approval, regulatory authorities may approve any of our drug candidates for fewer or more limited indications than we request, may not approve the price we intend to charge for our drugs, may grant approval contingent on the performance of costly post-marketing clinical trials, or may approve a drug candidate with a label that does not include the labeling claims necessary or desirable for the successful commercialization of that drug candidate. Any of the foregoing scenarios could materially harm the commercial prospects for our drug candidates.

Furthermore, even though the NMPA has granted approval for fruquintinib for use in third-line metastatic colorectal cancer patients, we are still subject to substantial, ongoing regulatory requirements. See "—Even if we receive regulatory approval for our drug candidates, we are subject to ongoing obligations and continued regulatory review, which may result in significant additional expense."

If the FDA, NMPA or another regulatory agency revokes its approval of, or if safety, efficacy, manufacturing or supply issues arise with, any therapeutic that we use in combination with our drug candidates, we may be unable to market such drug candidate or may experience significant regulatory delays or supply shortages, and our business could be materially harmed.

We are currently focusing on the clinical development of savolitinib as both a monotherapy and in combination with immunotherapy (Imfinzi (durvalumab)), targeted therapies (Tagrisso (osimertinib) and Iressa (gefitinib)) and chemotherapy (Taxotere (docetaxel)). We are also focusing on the clinical development of our drug candidate fruquintinib as both a monotherapy and in combination with immunotherapies (Tyvyt (sintilimab) and genolimzumab), chemotherapy (Taxol (paclitaxel)) and targeted therapies (Iressa (gefitinib)). In addition, we are currently focusing on the clinical development of surufatinib (previously named sulfatinib) as a monotherapy and in combination with immunotherapies (Tuoyi (toripalimab) and HX008) and HMPL-523 as a monotherapy and in combination with azacitidine. However, we did not develop and we do not manufacture or sell, Tagrisso, Iressa, Taxotere, Taxol, Imfinzi, Tyvyt, genolimzumab, Tuoyi, HX008, azacitidine or any other therapeutic we use in combination with our drug candidates. We may also seek to develop our drug candidates in combination with other therapeutics in the future.

If the FDA, NMPA or another regulatory agency revokes its approval, or does not grant approval, of any of these and other therapeutics we use in combination with our drug candidates, we will not be able to market our drug candidates in combination with such therapeutics. If safety or efficacy issues arise with these or other therapeutics that we seek to combine with our drug candidates in the future, we may experience significant regulatory delays, and we may be required to redesign or terminate the applicable clinical trials. In addition, if manufacturing or other issues result in a supply shortage of these or any other combination therapeutics, we may not be able to complete clinical development of savolitinib, fruquintinib, surufatinib, HMPL-523 and/or another of our drug candidates on our current timeline or at all.

Even if one or more of our drug candidates were to receive regulatory approval for use in combination with a therapeutic, we would continue to be subject to the risk that the FDA, NMPA or another regulatory agency could revoke its approval of the combination therapeutic, or that safety, efficacy, manufacturing or supply issues could arise with one of these combination therapeutics. This could result in savolitinib, fruquintinib, surufatinib, HMPL-523 or one of our other products being removed from the market or being less successful commercially.

We face substantial competition, which may result in others discovering, developing or commercializing drugs before or more successfully than we do.

The development and commercialization of new drugs is highly competitive. We face competition with respect to our current drug candidates, and will face competition with respect to any drug candidates that

we may seek to develop or commercialize in the future, from major pharmaceutical companies, specialty pharmaceutical companies and biotechnology companies worldwide. There are a number of large pharmaceutical and biotechnology companies that currently market drugs or are pursuing the development of therapies in the field of kinase inhibition for cancer and other diseases. Some of these competitive drugs and therapies are based on scientific approaches that are the same as or similar to our approach, and others are based on entirely different approaches. Potential competitors also include academic institutions, government agencies and other public and private research organizations that conduct research, seek patent protection and establish collaborative arrangements for research, development, manufacturing and commercialization. Specifically, there are a large number of companies developing or marketing treatments for cancer, including many major pharmaceutical and biotechnology companies.

Many of the companies against which we are competing or against which we may compete in the future have significantly greater financial resources and expertise in research and development, manufacturing, pre-clinical testing, conducting clinical trials, obtaining regulatory approvals and marketing approved drugs than we do. Mergers and acquisitions in the pharmaceutical, biotechnology and diagnostic industries may result in even more resources being concentrated among a smaller number of our competitors. Smaller or early-stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large and established companies. These competitors also compete with us in recruiting and retaining qualified scientific and management personnel and establishing clinical trial sites and patient registration for clinical trials, as well as in acquiring technologies complementary to, or necessary for, our programs.

Our commercial opportunity could be reduced or eliminated if our competitors develop and commercialize drugs that are safer, more effective, have fewer or less severe side effects, are more convenient or are less expensive than any drugs that we or our collaborators may develop. Our competitors also may obtain FDA, NMPA or other regulatory approval for their drugs more rapidly than we may obtain approval for ours, which could result in our competitors establishing a strong market position before we or our collaborators are able to enter the market. The key competitive factors affecting the success of all of our drug candidates, if approved, are likely to be their efficacy, safety, convenience, price, the level of generic competition and the availability of reimbursement from government and other third-party payors.

Clinical development involves a lengthy and expensive process with an uncertain outcome.

There is a risk of failure for each of our drug candidates. It is difficult to predict when or if any of our drug candidates will prove effective and safe in humans or will receive regulatory approval. Before obtaining regulatory approval from regulatory authorities for the sale of any drug candidate, we or our collaboration partners must complete pre-clinical studies and then conduct extensive clinical trials to demonstrate the safety and efficacy of our drug candidates in humans. Clinical testing is expensive, difficult to design and implement and can take many years to complete. The outcomes of pre-clinical development testing and early clinical trials may not be predictive of the success of later clinical trials, and interim results of a clinical trial do not necessarily predict final results. Moreover, pre-clinical and clinical data are often susceptible to varying interpretations and analyses, and many companies that have believed their drug candidates performed satisfactorily in pre-clinical studies and clinical trials have nonetheless failed to obtain regulatory approval of their drug candidates. Our current or future clinical trials may not be successful.

Commencing each of our clinical trials is subject to finalizing the trial design based on ongoing discussions with the FDA, NMPA or other regulatory authorities. The FDA, NMPA and other regulatory authorities could change their position on the acceptability of our trial designs or clinical endpoints, which could require us to complete additional clinical trials or impose approval conditions that we do not currently expect. Successful completion of our clinical trials is a prerequisite to submitting an NDA or analogous filing to the FDA, NMPA or other regulatory authorities for each drug candidate and,

consequently, the ultimate approval and commercial marketing of our drug candidates. We do not know whether any of our clinical trials will begin or be completed on schedule, if at all.

We and our collaboration partners may incur additional costs or experience delays in completing our pre-clinical or clinical trials, or ultimately be unable to complete the development and commercialization of our drug candidates.

We and our collaboration partners, including AstraZeneca and Eli Lilly, may experience delays in completing our pre-clinical or clinical trials, and numerous unforeseen events could arise during, or as a result of, future clinical trials, which could delay or prevent us from receiving regulatory approval, including:

We could encounter regulatory delays if a clinical trial is suspended or terminated by us or our collaboration partners, by, as applicable, the IRBs of the institutions in which such trials are being conducted, by the Data Safety Monitoring Board, which is an independent group of experts that is formed to monitor clinical trials while ongoing, or by the FDA, NMPA or other regulatory authorities. Such authorities may impose a suspension or termination due to a number of factors, including: a failure to conduct the clinical trial in accordance with regulatory requirements or the applicable clinical protocols, inspection of the clinical trial operations or trial site by the FDA, NMPA or other regulatory authorities

that results in the imposition of a clinical hold, unforeseen safety issues or adverse side effects, failure to demonstrate a benefit from using a drug, changes in governmental regulations or administrative actions or lack of adequate funding to continue the clinical trial. Many of the factors that cause a delay in the commencement or completion of clinical trials may also ultimately lead to the denial of regulatory approval of our drug candidates. Further, the FDA, NMPA or other regulatory authorities may disagree with our clinical trial design and our interpretation of data from clinical trials, or may change the requirements for approval even after it has reviewed and commented on the design for our clinical trials.

If we or our collaboration partners are required to conduct additional clinical trials or other testing of our drug candidates beyond those that are currently contemplated, if we or our collaboration partners are unable to successfully complete clinical trials of our drug candidates or other testing, if the results of these trials or tests are not positive or are only modestly positive or if there are safety concerns, we may:

Our drug development costs will also increase if we experience delays in testing or regulatory approvals. We do not know whether any of our clinical trials will begin as planned, will need to be restructured or will be completed on schedule, or at all. Significant pre-clinical study or clinical trial delays also could allow our competitors to bring products to market before we do and impair our ability to successfully commercialize our drug candidates and may harm our business and results of operations. Any delays in our clinical development programs may harm our business, financial condition and prospects significantly.

If we or our collaboration partners experience delays or difficulties in the enrollment of patients in clinical trials, the progress of such clinical trials and our receipt of necessary regulatory approvals could be delayed or prevented.

We or our collaboration partners may not be able to initiate or continue clinical trials for our drug candidates if we or our collaboration partners are unable to locate and enroll a sufficient number of eligible patients to participate in these trials as required by the FDA, NMPA or similar regulatory authorities. In particular, we and our collaboration partners have designed many of our clinical trials, and expect to design future trials, to include some patients with the applicable genomic alteration that causes the disease with a view to assessing possible early evidence of potential therapeutic effect. Genomically defined diseases, however, may have relatively low prevalence, and it may be difficult to identify patients with the applicable genomic alteration. In addition, for our fruquintinib trials, we focus on enrolling patients who have failed their first or second-line treatments, which limits the total size of the patient population available for such trials. The inability to enroll a sufficient number of patients with the applicable genomic alteration or that meet other applicable criteria for our clinical trials would result in significant delays and could require us or our collaboration partners to abandon one or more clinical trials altogether.

In addition, some of our competitors have ongoing clinical trials for drug candidates that treat the same indications as our drug candidates, and patients who would otherwise be eligible for our clinical trials may instead enroll in clinical trials of our competitors' drug candidates.

Enrollment delays in our clinical trials may result in increased development costs for our drug candidates, which could cause the value of our company to decline and limit our ability to obtain financing.

Our drug candidates may cause undesirable side effects that could delay or prevent their regulatory approval, limit the commercial profile of an approved label, or result in significant negative consequences following regulatory approval, if any.

Undesirable side effects caused by our drug candidates could cause us or our collaboration partners to interrupt, delay or halt clinical trials or could cause regulatory authorities to interrupt, delay or halt our clinical trials and could result in a more restrictive label or the delay or denial of regulatory approval by the FDA, NMPA or other regulatory authorities. In particular, as is the case with all oncology drugs, it is likely that there may be side effects, for example, hand-foot syndrome, associated with the use of certain of our drug candidates. Results of our trials could reveal a high and unacceptable severity and prevalence of these or other side effects. In such an event, our trials could be suspended or terminated and the FDA, NMPA or comparable regulatory authorities could order us to cease further development of or deny approval of our drug candidates for some or all targeted indications. The drug-related side effects could affect patient recruitment or the ability of enrolled patients to complete the trial or result in potential product liability claims. Any of these occurrences may harm our business, financial condition and prospects significantly.

Further, our drug candidates could cause undesirable side effects related to off-target toxicity. Many of the currently approved tyrosine kinase inhibitors have been associated with off-target toxicities because they affect multiple kinases. While we believe that the kinase selectivity of our drug candidates has the potential to significantly improve the unfavorable adverse off-target toxicity issues, if patients were to experience off-target toxicity, we may not be able to achieve an effective dosage level, receive approval to market, or achieve the commercial success we anticipate with respect to any of our drug candidates, which could prevent us from ever generating revenue or achieving profitability. Many compounds that initially showed promise in early-stage testing for treating cancer have later been found to cause side effects that prevented further development of the compound.

Clinical trials assess a sample of the potential patient population. With a limited number of patients and duration of exposure, rare and severe side effects of our drug candidates may only be uncovered with a significantly larger number of patients exposed to the drug candidate. If our drug candidates receive regulatory approval and we or others identify undesirable side effects caused by such drug candidates (or any other similar drugs) after such approval, a number of potentially significant negative consequences could result, including:

Any of these events could prevent us from achieving or maintaining market acceptance of the affected drug candidates and could substantially increase the costs of commercializing our drug candidates, if approved, and significantly impact our ability to successfully commercialize our drug candidates and generate revenue.

We and our collaboration partners have conducted and intend to conduct additional clinical trials for certain of our drug candidates at sites outside the United States, and the FDA may not accept data from trials conducted in such locations or may require additional U.S.-based trials.

We and our collaboration partners have conducted, currently are conducting and intend in the future to conduct, clinical trials outside the United States, particularly in China where our Innovation Platform is headquartered as well as in Australia, Canada, South Korea, U.K. and Spain.

Although the FDA may accept data from clinical trials conducted outside the United States, acceptance of these data is subject to certain conditions imposed by the FDA. For example, the clinical trial must be well designed and conducted by qualified investigators in accordance with current good clinical practices, or GCPs, including review and approval by an independent ethics committee and receipt of informed consent from trial patients. The trial population must also adequately represent the U.S. population, and the data must be applicable to the U.S. population and U.S. medical practice in ways that the FDA deems clinically meaningful. Generally, the patient population for any clinical trial conducted outside of the United States must be representative of the population for which we intend to seek approval in the United States. In addition, while these clinical trials are subject to applicable local laws, FDA acceptance of the data will be dependent upon its determination that the trials also comply with all applicable U.S. laws and regulations. There can be no assurance that the FDA will accept data from trials conducted outside of the United States. If the FDA does not accept the data from our clinical trials of fruquintinib, surufatinib, epitinib or theliatinib in China, savolitinib in the U.K., Spain, South Korea, Canada and China, or HMPL-523, HMPL-689 and HMPL-453 in Australia and China, for example, or any other trial that we or our collaboration partners conduct outside the United States, it would likely result in the need for additional clinical trials, which would be costly and time-consuming and delay or permanently halt our ability to develop and market these or other drug candidates in the United States.

In addition, there are risks inherent in conducting clinical trials in jurisdictions outside the United States including:

If we are unable to obtain and/or maintain NMPA approval for our drug candidates to be eligible for an expedited registration pathway, the time and cost we incur to obtain regulatory approvals may increase. Even if we receive such approvals, they may not lead to a faster development, review or approval process.

Under the Special Examination and Approval of the Registration of New Drugs provisions, the NMPA may grant "green-channel" approval to (i) active ingredients and their preparations extracted from plants, animals and minerals, and newly discovered medical materials and their preparations that have not been sold in the China market, (ii) chemical drugs and their preparations and biological products that have not been approved for sale at its origin country or abroad, (iii) new drugs with obvious clinical treatment advantages for diseases such as AIDS, therioma, and rare diseases, and (iv) new drugs for diseases that have not been treated effectively. We have achieved green-channel approval from the NMPA for savolitinib, fruquintinib, surufatinib, epitinib and theliatinib. We anticipate that we may seek a green-channel development pathway for certain of our other drug candidates and indications. If granted, the green-channel will enable us to establish streamlined communication with the relevant review panel of the NMPA, thus improving the efficiency of new drug approval.

A failure to obtain and/or maintain green-channel approval or any other form of expedited development, review or approval for our drug candidates would result in a longer time period to commercialization of such drug candidate, could increase the cost of development of such drug candidate and could harm our competitive position in the marketplace. In addition, even if we obtain green-channel approval, there is no guarantee that we will experience a faster development process, review or approval compared to non-accelerated registration pathways or that a drug candidate will ultimately be approved for sale.

Even if we receive regulatory approval for our drug candidates, we are subject to ongoing obligations and continued regulatory review, which may result in significant additional expense.

If the FDA, NMPA or a comparable regulatory authority approves any of our drug candidates, we will continue to be subject to extensive and ongoing regulatory requirements. For example, even though the NMPA has granted approval of fruquintinib, the manufacturing processes, labeling, packaging, distribution, adverse event reporting, storage, advertising, promotion and recordkeeping for fruquintinib continue to be subject to the NMPA's oversight. These requirements include submissions of safety and other post-marketing information and reports, registration, as well as continued compliance with current good manufacturing processes.

Any regulatory approvals that we receive for our drug candidates may also be subject to limitations on the approved indicated uses for which the drug may be marketed or to the conditions of approval, or contain requirements for potentially costly post-marketing testing, including Phase IV clinical trials, and surveillance to monitor the safety and efficacy of the drug. In addition, regulatory policies may change or additional government regulations may be enacted that could prevent, limit or delay regulatory approval of our drug candidates. If we are slow or unable to adapt to changes in existing requirements or the adoption of new requirements or policies, or if we are not able to maintain regulatory compliance, we may lose any regulatory approval that we may have obtained, which would adversely affect our business, prospects and ability to achieve or sustain profitability.

We may be subject to penalties if we fail to comply with regulatory requirements or experience unanticipated problems with any of our drugs that receive regulatory approval.

Once a drug is approved by the FDA, NMPA or a comparable regulatory authority for marketing, it is possible that there could be a subsequent discovery of previously unknown problems with the drug, including problems with third-party manufacturers or manufacturing processes, or failure to comply with regulatory requirements. If any of the foregoing occurs with respect to our drug products, it may result in, among other things:

Any government investigation of alleged violations of law could require us to expend significant time and resources and could generate negative publicity. If we or our collaborators are not able to maintain regulatory compliance, regulatory approval that has been obtained may be lost and we may not achieve or sustain profitability, which would adversely affect our business, prospects, financial condition and results of operations.

The incidence and prevalence for target patient populations of our drug candidates are based on estimates and third-party sources. If the market opportunities for our drug candidates are smaller than we estimate or if any approval that we obtain is based on a narrower definition of the patient population, our revenue and ability to achieve profitability will be adversely affected, possibly materially.

Periodically, we make estimates regarding the incidence and prevalence of target patient populations for particular diseases based on various third-party sources and internally generated analysis and use such estimates in making decisions regarding our drug development strategy, including determining indications on which to focus in pre-clinical or clinical trials.

These estimates may be inaccurate or based on imprecise data. For example, the total addressable market opportunity will depend on, among other things, their acceptance by the medical community and patient access, drug pricing and reimbursement. The number of patients in the addressable markets may turn out to be lower than expected, patients may not be otherwise amenable to treatment with our drugs, or new patients may become increasingly difficult to identify or gain access to, all of which would adversely affect our results of operations and our business.

Our future success depends on our ability to retain key executives and to attract, retain and motivate qualified personnel.

We are highly dependent on the expertise of the members of our research and development team, as well as the other principal members of our management, including Christian Hogg, our Chief Executive Officer and director, and Weiguo Su, Ph.D., our Chief Scientific Officer and director. Although we have entered into employment agreements with our executive officers, each of them may terminate their employment with us at any time with three months' prior written notice. We do not maintain "key person" insurance for any of our executives or other employees.

Recruiting and retaining qualified management, scientific, clinical, manufacturing and sales and marketing personnel will also be critical to our success. The loss of the services of our executive officers or other key employees could impede the achievement of our research, development and commercialization objectives and seriously harm our ability to successfully implement our business strategy. Furthermore, replacing executive officers and key employees may be difficult and may take an extended period of time because of the limited number of individuals in our industry with the breadth of skills and experience required to successfully develop, gain regulatory approval of and commercialize drugs. Competition to hire from this limited pool is intense, and we may be unable to hire, train, retain or motivate these key personnel on acceptable terms given the competition among numerous pharmaceutical and biotechnology companies for similar personnel. We also experience competition for the hiring of scientific and clinical personnel from universities and research institutions. Failure to succeed in clinical trials may make it more challenging to recruit and retain qualified scientific personnel.

We have expanded our footprint and operations in the United States, and we intend to expand our international operations further in the future, but we may not achieve the results that we expect.

In early 2018, we opened our first office in the United States. While we have been involved in clinical and non-clinical development in North America and Europe for over a decade, the activities conducted by our new U.S. office will significantly broaden and scale our non-Asian clinical development and international operations. We intend to significantly expand our U.S. clinical team to support our increasing clinical activities in the United States and Europe. Conducting our business in multiple countries subjects us to a variety of risks and complexities that may materially and adversely affect our business, results of operations, financial condition and growth prospects, including, among other things:

As a result of our growth, our business and corporate structure has become more complex. There can be no assurance that we will effectively manage the increased complexity without experiencing operating inefficiencies or control deficiencies. Significant management time and effort is required to effectively manage the increased complexity of our company, and our failure to successfully do so could have a material adverse effect on our business, financial condition, results of operations and growth prospects.

As a significant portion of our Commercial Platform business, which consists of our Prescription Drugs and Consumer Health divisions, is conducted through joint ventures, we are largely dependent on the success of our joint ventures and our receipt of dividends or other payments from our joint ventures for cash to fund our operations.

We are party to joint venture agreements with Shanghai Pharmaceuticals and Guangzhou Baiyunshan, relating to our non-consolidated joint ventures, which together form part of our Commercial Platform

business. Our equity in the earnings of these non-consolidated joint ventures was $70.5 million, $38.2 million and $38.3 million for the years ended December 31, 2016, 2017 and 2018, respectively, as recorded in our consolidated financial statements. Furthermore, we have consolidated joint ventures with each of Sinopharm and Hain Celestial which accounted for substantially all of our Commercial Platform's consolidated revenue for the years ended December 31, 2016, 2017 and 2018.

As a result, our ability to fund our operations and pay our expenses or to make future dividend payments, if any, is largely dependent on the earnings of our joint ventures and the payment of those earnings to us in the form of dividends. Payments to us by our joint ventures will be contingent upon our joint ventures' earnings and other business considerations and may be subject to statutory or contractual restrictions. Each joint venture's ability to distribute dividends to us is subject to approval by their respective boards of directors, which in the case of Shanghai Hutchison Pharmaceuticals and Hutchison Baiyunshan are comprised of an equal number of representatives from each party.

Operationally, our joint venture partners have certain responsibilities and/or certain rights to exercise control or influence over operations and decision-making under the joint venture arrangements. Therefore, the success of our joint ventures depends on the efforts and abilities of our joint venture parties to varying degrees. For example, we share the ability to appoint the general manager of our joint venture with Guangzhou Baiyunshan, with each of us having a rotating four-year right, and therefore, our ability to manage the day-to-day operations of this joint venture is more limited. On the other hand, we appoint the general managers of Hutchison Sinopharm and Shanghai Hutchison Pharmaceuticals pursuant to the respective joint venture agreements governing these entities and therefore oversee the day-to-day management of these joint ventures. However, we still rely on our joint venture partners Sinopharm and Shanghai Pharmaceuticals to provide certain distribution and logistics services. See "—Risks Related to our Dependence on Third Parties—Joint ventures form an important part of our Commercial Platform business, and our ability to manage and develop the businesses conducted by these joint ventures depends in part on our relationship with our joint venture partners" for more information.

We intend to use our Commercial Platform's Prescription Drugs business to commercialize our internally developed drug candidates, but we may not be successful in adapting this business to successfully manufacture, sell and market our drug candidates if and when they are approved, and we may not be able to generate any revenue from such products.

Our Prescription Drugs business is operated by our Shanghai Hutchison Pharmaceuticals and Hutchison Sinopharm joint ventures and currently has a manufacturing, sales and marketing infrastructure in China. We intend to leverage our Prescription Drugs business to commercialize certain of our drug candidates, if approved. However, to do so, we must adapt our Prescription Drugs business to cater to oncology and/or immunology drug sales to achieve commercial success for any approved drug candidate in these areas. In the future, we may need to expand the sales and marketing team of these joint ventures or refocus their activities to some of our drug candidates if and when they are approved.

There are risks involved with adapting our current Prescription Drugs business. For example, recruiting and/or training a sales force in new therapeutic areas is time consuming and could delay any drug launch. Factors that may inhibit our efforts to commercialize our drug candidates through our Prescription Drugs business include:

In such case, our business, results of operations, financial condition and prospects will be materially and adversely affected.

Our Commercial Platform's Prescription Drugs business competes in the pharmaceutical industry in China, which is characterized by a number of established, large pharmaceutical companies, as well as some smaller emerging pharmaceutical companies. Our Prescription Drugs business competes with pharmaceutical companies engaged in the development, production, marketing or sales of prescription drugs, in particular cardiovascular drugs. The identities of the key competitors with respect to our Prescription Drugs business vary by product and, in certain cases, competitors have greater financial resources than us and may elect to focus these resources on developing, importing or in-licensing and marketing products in the PRC that are substitutes for our products and may have broader sales and marketing infrastructure with which to do so. Our Commercial Platform's Consumer Health business also competes in a highly fragmented market in Asia.

The products sold through our Commercial Platform, which may include our drug candidates if they receive regulatory approval, may compete against products that have lower prices, superior performance, greater ease of administration or other advantages compared to our products. In some circumstances, price competition may drive our competitors to conduct illegal manufacturing processes to lower their manufacturing costs. Increased competition may result in price reductions, reduced margins and loss of market share, whether achieved by either legal or illegal means, any of which could materially and adversely affect our profit margins. We and our joint ventures may not be able to compete effectively against current and future competitors.

If we are not able to maintain and enhance brand recognition of the Commercial Platform's products to maintain its competitive advantage, our reputation, business and operating results may be harmed.

We believe that market awareness of the products sold through our Commercial Platform, which include our joint ventures' branded products, such as Baiyunshan and Shang Yao, and the brands of third-party products which are distributed through our joint ventures, such as AstraZeneca's Seroquel, has contributed significantly to the success of our Commercial Platform. We also believe that maintaining and enhancing such brands is critical to maintaining our competitive advantage. Although the sales and marketing staff of our Commercial Platform will continue to further promote such brands to remain competitive, they may not be successful. If our joint ventures are unable to further enhance brand recognition and increase awareness of their products, or if they are compelled to incur excessive marketing and promotion expenses in order to maintain brand awareness, our business and results of operations may be materially and adversely affected. Furthermore, our results of operations could be adversely affected if the Baiyunshan and Shang Yao brands, or the brands of any other products, or our reputation, are impaired by certain actions taken by our joint venture partners, distributors, competitors or relevant regulatory authorities.

Reimbursement may not be available for the products currently sold through our Commercial Platform or our drug candidates in China, the United States or other countries, which could diminish our sales or affect our profitability.

The regulations that govern pricing and reimbursement for pharmaceuticals vary widely from country to country. Some countries require approval of the sale price of a drug before it can be marketed. In many countries, the pricing review period begins after regulatory approval is granted. In some foreign markets, pharmaceutical pricing remains subject to continuing governmental control even after initial approval is

granted. Furthermore, once marketed and sold, government authorities and third-party payors, such as private health insurers and health maintenance organizations, decide which medications they will pay for and establish reimbursement levels. Adverse pricing reimbursement levels may hinder market acceptance of products sold by our Commercial Platform or drug candidates.

In China, for example, the Ministry of Human Resources and Social Security of the PRC or provincial or local human resources and social security authorities, together with other government authorities, review the inclusion or removal of drugs from China's National Medicines Catalogue or provincial or local medical insurance catalogues for the National Medical Insurance Program, and the tier under which a drug will be classified, both of which affect the amounts reimbursable to program participants for their purchases of those medicines. These determinations are made based on a number of factors, including price and efficacy. Depending on the tier under which a drug is classified in the provincial medicine catalogue, a National Medical Insurance Program participant residing in that province can be reimbursed for the full cost of Tier 1 medicine and for the majority of the cost of a Tier 2 medicine. In some instances, if the price range designated by the local or provincial government decreases, it may adversely affect our business and could reduce our total revenue, and if our revenue falls below production costs, we may stop manufacturing certain products. In addition, in order to access certain local or provincial-level markets, our joint ventures are periodically required to enter into competitive bidding processes for She Xiang Bao Xin pills (the best-selling product of our Shanghai Hutchison Pharmaceuticals joint venture), Fu Fang Dan Shen tablets (one of the best-selling products of our Hutchison Baiyunshan joint venture) and other products with a pre-defined price range. The competitive bidding in effect sets price ceilings for those products, thereby limiting our profitability.

In the United States, there have been and continue to be a number of legislative initiatives to contain healthcare costs which may affect reimbursement rates of our drug candidates if approved. For example, in March 2010, the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act, or the Affordable Care Act, was passed, which substantially changes the way health care is financed by both governmental and private insurers. The Affordable Care Act, among other things, establishes a new Medicare Part D coverage gap discount program, in which manufacturers must agree to offer 50% point-of-sale discounts off negotiated prices of applicable brand drugs to eligible beneficiaries during their coverage gap period as a condition for the manufacturer's outpatient drugs to be covered under Medicare Part D. In addition, other legislative changes have been proposed and adopted in the United States since the Affordable Care Act was enacted.

Modifications to or repeal of all or certain provisions of the Healthcare Reform Act had been expected based on statements made by President Donald Trump and certain members of Congress. However, we cannot predict the ultimate content, timing or effect of any changes to the Healthcare Reform Act or other federal and state reform efforts. There is no assurance that federal or state health care reform will not adversely affect our future business and financial results. We expect that additional U.S. state and federal healthcare reform measures will be adopted in the future, any of which could limit the amounts that federal and state governments will pay for healthcare products and services, which could result in reduced demand for our drug candidates or additional pricing pressures. We expect that the pharmaceutical industry will experience pricing pressures due to the increasing influence of managed care (and related implementation of managed care strategies to control utilization), additional federal and state legislative and regulatory proposals to regulate pricing of drugs, limit coverage of drugs or reduce reimbursement for drugs, public scrutiny and the Trump administration's agenda to control the price of pharmaceuticals through government negotiations of drug prices in Medicare Part D and importation of cheaper products from abroad.

Moreover, eligibility for reimbursement in the United States does not imply that any drug will be paid for in all cases or at a rate that covers our costs, including research, development, manufacture, sale and distribution. Interim U.S. reimbursement levels for new drugs, if applicable, may also not be sufficient to cover our costs and may not be made permanent. Reimbursement rates may vary according to the use of

the drug and the clinical setting in which it is used, may be based on reimbursement levels already set for lower cost drugs and may be incorporated into existing payments for other services. Net prices for drugs may be reduced by mandatory discounts or rebates required by U.S. government healthcare programs or private payors and by any future relaxation of laws that presently restrict imports of drugs from countries where they may be sold at lower prices than in the United States. Third-party payors in the United States often rely upon Medicare coverage policy and payment limitations in setting their own reimbursement policies. Our inability to promptly obtain coverage and profitable payment rates from both government-funded and private payors for any approved drugs that we develop could have a material adverse effect on our operating results, our ability to raise capital needed to commercialize drugs and our overall financial condition.

Sales of products sold by our Prescription Drugs business rely on the ability to win tender bids for the medicine purchases of hospitals in China.

Our Commercial Platform's Prescription Drugs business markets to hospitals in China who may make bulk purchases of a medicine only if that medicine is selected under a government-administered tender process. Periodically, a bidding process is organized on a provincial or municipal basis. Whether a drug manufacturer is invited to participate in the tender depends on the level of interest that hospitals have in purchasing this drug. The interest of a hospital in a medicine is evidenced by:

We believe that effective marketing efforts are critical in making and keeping hospitals interested in purchasing the Prescription Drugs sold through our Commercial Platform so that we and our joint ventures are invited to submit the products to the tender. Even if we and our joint ventures are invited to do so, competitors may be able to substantially reduce the price of their products or services. If competitors are able to offer lower prices, our and our joint ventures' ability to win tender bids during the hospital tender process will be materially affected, and could reduce our total revenue or decrease our profit.

Counterfeit products in China could negatively impact our revenue, brand reputation, business and results of operations.

Our Commercial Platform's products are subject to competition from counterfeit products, especially counterfeit pharmaceuticals which are manufactured without proper licenses or approvals and are fraudulently mislabeled with respect to their content and/or manufacturer. Counterfeiters may illegally manufacture and market products under our or our joint venture's brand names, the brand names of the third-party products we or they sell, or those of our or their competitors. Counterfeit pharmaceuticals are generally sold at lower prices than the authentic products due to their low production costs, and in some cases are very similar in appearance to the authentic products. Counterfeit pharmaceuticals may or may not have the same chemical content as their authentic counterparts. If counterfeit pharmaceuticals illegally sold under our or our joint ventures' brand names or the brand names of third-party products we or they sell result in adverse side effects to consumers, we or our joint ventures may be associated with any negative publicity resulting from such incidents. In addition, consumers may buy counterfeit pharmaceuticals that are in direct competition with the products sold through our Commercial Platform, which could have an adverse impact on our revenue, business and results of operations. The proliferation of counterfeit pharmaceuticals in China and globally may grow in the future. Any such increase in the sales and production of counterfeit pharmaceuticals in China, or the technological capabilities of the counterfeiters, could negatively impact our revenue, brand reputation, business and results of operations.

Pharmaceutical companies in China are required to comply with extensive regulations and hold a number of permits and licenses to carry on their business. Our and our joint ventures' ability to obtain and maintain these regulatory approvals is uncertain, and future government regulation may place additional burdens on the Commercial Platform business.

The pharmaceutical industry in China is subject to extensive government regulation and supervision. The regulatory framework addresses all aspects of operating in the pharmaceutical industry, including approval, production, distribution, advertising, licensing and certification requirements and procedures, periodic renewal and reassessment processes, registration of new drugs and environmental protection. Violation of applicable laws and regulations may materially and adversely affect our business. In order to manufacture and distribute pharmaceutical products in China, we and our joint ventures are required to:

If we or our joint ventures are unable to obtain or renew such permits or any other permits or licenses required for our or their operations, we will not be able to engage in the manufacture and distribution of our products and our business may be adversely affected.

The regulatory framework regarding the pharmaceutical industry in China is subject to change and amendment from time to time. Any such change or amendment could materially and adversely impact our business, financial condition and results of operations. The PRC government has introduced various reforms to the Chinese healthcare system in recent years and may continue to do so, with an overall objective to expand basic medical insurance coverage and improve the quality and reliability of healthcare services. The specific regulatory changes under the reform still remain uncertain. The implementing measures to be issued may not be sufficiently effective to achieve the stated goals, and as a result, we may not be able to benefit from such reform to the level we expect, if at all. Moreover, the reform could give rise to regulatory developments, such as more burdensome administrative procedures, which may have an adverse effect on our business and prospects.

For further information regarding government regulation in China and other jurisdictions, see Item 4.B. "Business Overview—Regulation—Government Regulation of Pharmaceutical Product Development and Approval," "Business Overview—Regulation—Coverage and Reimbursement" and "Business Overview—Regulation—Other Healthcare Laws."

Rapid changes in the pharmaceutical industry may render our Commercial Platform's current products or our drug candidates obsolete.

Future technological improvements by our competitors and continual product developments in the pharmaceutical market may render our and our joint ventures' existing products, our or their third-party licensed products or our drug candidates obsolete or affect our Commercial Platform's viability and competitiveness. Therefore, our Commercial Platform's future success will largely depend on our and our joint ventures' ability to:

If we or our joint ventures fail to respond to this environment by improving our Commercial Platform's existing products, licensing new third-party products or developing new drug candidates in a timely fashion, or if such new or improved products do not achieve adequate market acceptance, our business and profitability may be materially and adversely affected.

Our Commercial Platform's principal products involve the cultivation or sourcing of key raw materials including botanical products, and any quality control or supply failure or price fluctuations could adversely affect our Commercial Platform's ability to manufacture our products and/or could materially and adversely affect our operating results.

The key raw materials used in the manufacturing process of certain of our Commercial Platform's principal products are medicinal herbs whose properties are related to the regions and climatic conditions in which they are grown. Access to quality raw materials and products necessary for the manufacture of our Commercial Platform products is not guaranteed. We rely on a combination of materials grown by our or our joint ventures' entities and materials sourced from third-party growers and suppliers. The availability, quality and prices of these raw materials are dependent on and closely affected by weather conditions and other seasonal factors which have an impact on the yields of the harvests each year. The quality, in some instances, also depends on the operations of third-party growers or suppliers. There is a risk that such growers or suppliers sell or attempt to sell us or our joint ventures raw materials which are not authentic. If there is any supply interruption for an indeterminate period of time, our joint ventures may not be able to identify and obtain alternative supplies that comply with our quality standards in a timely manner. Any supply disruption could adversely affect our ability to satisfy demand for our products, and materially and adversely affect our product sales and operating results. Moreover, any use by us or our joint ventures of unauthentic materials illegally sold to us by third-party growers or suppliers in our or our joint ventures' products may result in adverse side effects to the consumers, negative publicity, or product liability claims against us or our joint ventures, any of which may materially and adversely affect our operating results.

The prices of necessary raw materials and products may be subject to price fluctuations according to market conditions, and any sudden increases in demand in the case of a widespread illness such as SARS, MERS or avian flu may impact the costs of production. For example, the market price of Sanqi, one of the main natural raw materials in Hutchison Baiyunshan's Fu Fang Dan Shen tablets, fluctuated significantly between 2009 and 2018. Our Commercial Platform sources Sanqi and other necessary raw materials on a purchase order basis and does not have long-term supply contracts in place so that it can manage inventory levels to reduce its risk to price fluctuations; however, we cannot guarantee that we or our joint ventures will be successful in doing so. Raw material price fluctuations could increase the cost to manufacture our Commercial Platform's products and adversely affect our operating results.

Adverse publicity associated with our company, our joint ventures or our or their products or third-party licensed products or similar products manufactured by our competitors could have a material adverse effect on our results of operations.

Sales of the Commercial Platform's products are highly dependent upon market perceptions of the safety and quality of our and our joint ventures' products and the third-party products we and they distribute. Concerns over the safety of biopharmaceutical products manufactured in China could have an adverse effect on the reputation of our industry and the sale of such products, including products manufactured or distributed by us and our joint ventures.

We could be adversely affected if any of our or our joint ventures' products, third-party licensed products or any similar products manufactured by other companies prove to be, or are alleged to be, harmful to patients. Any negative publicity associated with severe adverse reactions or other adverse effects resulting from patients' use or misuse of our and our joint ventures' products or any similar products manufactured by other companies could also have a material adverse impact on our results of operations. We and our joint ventures have not, to date, experienced any significant quality control or safety problems. If in the future we or our joint ventures become involved in incidents of the type described above, such problems could severely and adversely impact our financial position and reputation.

We are dependent on our joint ventures' production facilities in Shanghai, Guangzhou and Bozhou, China for the manufacture of our principal Commercial Platform products.

The principal products sold by our Commercial Platform are mainly produced or expected to be produced at our joint ventures' manufacturing facilities in Shanghai, Guangzhou and Bozhou, China. A significant disruption at those facilities, even on a short-term basis, could impair our joint ventures' ability to timely produce and ship products, which could have a material adverse effect on our business, financial position and results of operations.

Our joint ventures' manufacturing operations are vulnerable to interruption and damage from natural and other types of disasters, including earthquake, fire, floods, environmental accidents, power loss, communications failures and similar events. If any disaster were to occur, our ability to operate our or our joint ventures' business at these facilities would be materially impaired. In addition, the nature of our production and research activities could cause significant delays in our programs and make it difficult for us to recover from a disaster. We and our joint ventures maintain insurance for business interruptions to cover some of our potential losses; however, such disasters could still disrupt our operations and thereby result in substantial costs and diversion of resources.

In addition, our and our joint ventures' production process requires a continuous supply of electricity. We and they have encountered power shortages historically due to restricted power supply to industrial users during summers when the usage of electricity is high and supply is limited or as a result of damage to the electricity supply network. Because the duration of those power shortages was brief, they had no material impact on our or their operations. Interruptions of electricity supply could result in lengthy production shutdowns, increased costs associated with restarting production and the loss of production in progress. Any major suspension or termination of electricity or other unexpected business interruptions could have a material adverse impact on our business, financial condition and results of operations.

Disagreements with our current or future collaboration partners, the amendment of any collaboration agreement or the termination of any collaboration arrangement, could cause delays in our product development and materially and adversely affect our business.

Our collaborations, including those with our oncology drug partners AstraZeneca and Eli Lilly, and any future collaborations that we enter into may not be successful. Disagreements between parties to a collaboration arrangement regarding clinical development and commercialization matters can lead to delays in the development process or commercializing the applicable drug candidate and, in some cases, termination of the collaboration arrangement. In addition, we may seek to amend the terms of one or more our collaboration agreements to adjust, among other things, the respective roles of our company and our collaboration partner as circumstances change. Our interests may not always be aligned with those our collaboration partners, For instance, we are much smaller than our collaboration partners and because they or their affiliates may sell competing products. This may result in potential conflicts between our collaborators and us on matters that we may not be able to resolve on favorable terms or at all.

Collaborations with pharmaceutical or biotechnology companies and other third parties, including our existing agreements with AstraZeneca and Eli Lilly, are often terminable by the other party for any reason with certain advance notice. Any such termination or expiration would adversely affect us financially and could harm our business reputation. For instance, in the event one of the strategic alliances with a current collaborator is terminated, we may require significant time and resources to secure a new collaboration partner, if we are able to secure such an arrangement at all. As noted in the following risk factor, establishing new collaboration arrangements can be challenging and time-consuming. The loss of existing or future collaboration arrangements would not only delay or potentially terminate the possible development or commercialization of products we may derive from our technologies, but it may also delay or terminate our ability to test specific target candidates.

We rely on our collaborations with third parties for certain of our drug development activities, and, if we are unable to establish new collaborations when desired on commercially attractive terms or at all, we may have to alter our development and commercialization plans.

Certain of our drug development programs and the potential commercialization of certain drug candidates rely on collaborations, such as savolitinib with AstraZeneca and fruquintinib with Eli Lilly. In the future, we may decide to collaborate with additional pharmaceutical and biotechnology companies for the development and potential commercialization of our other drug candidates.

We face significant competition in seeking appropriate collaborators. Whether we reach a definitive agreement for collaboration will depend, among other things, upon our assessment of the collaborator's resources and expertise, the terms and conditions of the proposed collaboration and the proposed collaborator's evaluation of a number of factors. Those factors may include the design or results of clinical trials, the likelihood of approval by the FDA, NMPA or similar regulatory authorities outside the United States and China, the potential market for the subject drug candidate, the costs and complexities of manufacturing and delivering such drug candidate to patients, the potential of competing drugs, the existence of uncertainty with respect to our ownership of technology, which can exist if there is a challenge to such ownership without regard to the merits of the challenge and industry and market conditions generally. The collaborator may also consider alternative drug candidates or technologies for similar indications that may be available to collaborate on and whether such collaboration could be more attractive than the one with us for our drug candidate. The terms of any additional collaboration or other arrangements that we may establish may not be favorable to us.

We may also be restricted under existing collaboration agreements from entering into future agreements on certain terms with potential collaborators. Collaborations are complex and time-consuming to negotiate and document. In addition, there have been a significant number of recent business combinations among large pharmaceutical companies that have resulted in a reduced number of potential future collaborators.

We may not be able to negotiate additional collaborations on a timely basis, on acceptable terms, or at all. If we are unable to do so, we may have to curtail the development of the drug candidate for which we are seeking to collaborate, reduce or delay its development program or one or more of our other development programs, delay its potential commercialization or reduce the scope of any sales or marketing activities, or increase our expenditures and undertake development or commercialization activities at our own expense. If we elect to increase our expenditures to fund development or commercialization activities on our own, we may need to obtain additional capital, which may not be available to us on acceptable terms or at all. If we do not have sufficient funds, we may not be able to further develop our drug candidates or bring them to market and generate drug revenue.

Further development and commercialization of our own drug candidates will depend, in part, on strategic alliances with our collaborators. If our collaborators do not diligently pursue product development efforts, impeding our ability to collect milestone and royalty payments, our progress may be delayed and our revenue may be deferred.

We rely and expect to continue to rely, to some extent, on our collaborators to provide funding in support of our own independent research and pre-clinical and clinical testing. We do not currently possess the financial resources necessary to fully develop and commercialize each of our drug candidates or the resources or capabilities to complete the lengthy regulatory approval processes that may be required for our drug candidates. Therefore, we rely and plan to continue to rely on strategic alliances to financially help us develop and commercialize certain of our drug candidates. As a result, our success depends, in part, on our ability to collect milestone and royalty payments from our existing collaborators, including our oncology drug partners AstraZeneca and Eli Lilly, and potential new collaborators. To the extent our collaborators do not aggressively pursue drug candidates for which we are entitled to such payments or pursue such drug candidates ineffectively, we will fail to realize these significant revenue streams, which could have an adverse effect on our business and future prospects.

If the alliances we currently have with AstraZeneca and Eli Lilly, or future collaborators with whom we may engage, are unable or unwilling to advance our programs, or if they do not diligently pursue product development and product approval, this may slow our progress and delay potential milestone and royalty payments. Any such failure would have an adverse effect on our ability to collect key revenue streams and, for this reason, would adversely impact our business, financial position and prospects. Our collaborators may sub-license or abandon drug candidates or we may have disagreements with our collaborators, which would cause associated product development to slow or cease. There can be no assurance that our current strategic alliances will be successful, and we may require significant time to secure new strategic alliances because we need to effectively market the benefits of our technology to these future alliance partners, which may direct the attention and resources of our research and development personnel and management away from our primary business operations. Further, each strategic alliance arrangement will involve the negotiation of terms that may be unique to each collaborator. These business development efforts may not result in a strategic alliance or may result in unfavorable arrangements.

Under typical collaboration agreements, we would expect to receive revenue for our selective kinase inhibitors based on achievement of specific development, sales or regulatory approval milestones, as well as royalties based on a percentage of sales of the commercialized products. Achieving these milestones will depend, in part, on the efforts of our partner as well as our own. If we, or any alliance partner, fail to meet specific milestones, then the strategic alliance may be terminated, which could reduce our revenue.

The third-party vendors upon whom we rely for the supply of the active pharmaceutical ingredient, drug product and drug substance used in our drug candidates are our sole source of supply, and the loss of any of these suppliers could significantly harm our business.

The active pharmaceutical ingredient, drug product and drug substance used in our drug candidates are supplied to us from third-party vendors. Our ability to successfully develop our drug candidates, and to ultimately supply our commercial drugs in quantities sufficient to meet the market demand, depends in part on our ability to obtain the active pharmaceutical ingredient, drug product and drug substance for these drugs in accordance with regulatory requirements and in sufficient quantities for commercialization and clinical testing. We contract with a single supplier to manufacture and supply us with the active pharmaceutical ingredient for fruquintinib for commercial purposes. We do not currently have arrangements in place for a redundant or second-source supply of the active pharmaceutical ingredient for fruquintinib or any other active pharmaceutical ingredients, drug product or drug substance used in our drug candidates in the event any of our current suppliers of such active pharmaceutical ingredient, drug product and drug substance cease their operations for any reason, which may lead to an interruption in our production.

For all of our drug candidates, we aim to identify and qualify multiple manufacturers to provide such active pharmaceutical ingredient, drug product and drug substance prior to submission of an NDA to the FDA and/or NMPA. We are not certain, however, that our current suppliers will be able to meet our demand for their products, either because of the nature of our agreements with those suppliers, our limited experience with those suppliers or our relative importance as a customer to those suppliers. It may be difficult for us to assess their ability to timely meet our demand in the future based on past performance. While our suppliers have generally met our demand for their products on a timely basis in the past, they may subordinate our needs in the future to their other customers.

Establishing additional or replacement suppliers for the active pharmaceutical ingredient, drug product and drug substance used in our drug candidates, if required, may not be accomplished quickly. If we are able to find a replacement supplier, such replacement supplier would need to be qualified and may require additional regulatory approval, which could result in further delay. While we seek to maintain adequate inventory of the active pharmaceutical ingredient, drug product and drug substance used in our drug candidates, any interruption or delay in the supply of components or materials, or our inability to obtain such active pharmaceutical ingredient, drug product and drug substance from alternate sources at acceptable prices in a timely manner could impede, delay, limit or prevent our development efforts, which could harm our business, results of operations, financial condition and prospects.

We and our collaborators rely, and expect to continue to rely, on third parties to conduct certain of our clinical trials for our drug candidates. If these third parties do not successfully carry out their contractual duties, comply with regulatory requirements or meet expected deadlines, we may not be able to obtain regulatory approval for or commercialize our drug candidates and our business could be harmed.

We do not have the ability to independently conduct large-scale clinical trials. We and our collaboration partners rely, and expect to continue to rely, on medical institutions, clinical investigators, contract laboratories and other third parties, such as CROs, to conduct or otherwise support certain clinical trials for our drug candidates. Nevertheless, we and our collaboration partners (as applicable) will be responsible for ensuring that each clinical trial is conducted in accordance with the applicable protocol, legal and regulatory requirements and scientific standards, and reliance on CROs will not relieve us of our regulatory responsibilities. For any violations of laws and regulations during the conduct of clinical trials for our drug candidates, we could be subject to warning letters or enforcement action that may include civil penalties up to and including criminal prosecution.

Although we or our collaboration partners design the clinical trials for our drug candidates, CROs conduct most of the clinical trials. As a result, many important aspects of our development programs, including their conduct and timing, are outside of our direct control. Our reliance on third parties to conduct clinical trials results in less control over the management of data developed through clinical trials than would be the case if we were relying entirely upon our own staff. Communicating with outside parties can also be challenging, potentially leading to mistakes as well as difficulties in coordinating activities. Outside parties may:

These factors may materially and adversely affect the willingness or ability of third parties to conduct our and our collaboration partners' clinical trials and may subject us or them to unexpected cost increases that are beyond our or their control.

If any of our and our collaboration partners' relationships with these third-party CROs terminate, we or they may not be able to enter into arrangements with alternative CROs on reasonable terms or at all. If CROs do not successfully carry out their contractual duties or obligations or meet expected deadlines, if they need to be replaced or if the quality or accuracy of the clinical data they obtain is compromised due to the failure to adhere to our clinical protocols, regulatory requirements or for other reasons, any clinical trials such CROs are associated with may be extended, delayed or terminated, and we may not be able to obtain regulatory approval for or successfully commercialize our drug candidates. As a result, we believe that our financial results and the commercial prospects for our drug candidates in the subject indication would be harmed, our costs could increase and our ability to generate revenue could be delayed.

We, our collaboration partners or our CROs may fail to comply with the regulatory requirements pertaining to clinical trials, which could result in fines, adverse publicity and civil or criminal sanctions.

We, our collaboration partners and our CROs are required to comply with regulations for conducting, monitoring, recording and reporting the results of clinical trials to ensure that the data and results are scientifically credible and accurate, and that the trial patients are adequately informed of the potential risks of participating in clinical trials and their rights are protected. These regulations are enforced by the FDA, the NMPA and comparable foreign regulatory authorities for any drugs in clinical development. In the United States, the FDA regulates GCP through periodic inspections of clinical trial sponsors, principal investigators and trial sites. If we, our collaboration partners or our CROs fail to comply with applicable GCPs, the clinical data generated in our clinical trials may be deemed unreliable and the FDA or comparable foreign regulatory authorities may require additional clinical trials before approving the marketing applications for the relevant drug candidate. We cannot assure you that, upon inspection, the FDA or other applicable regulatory authority will determine that any of the future clinical trials for our drug candidates will comply with GCPs. In addition, clinical trials must be conducted with drug candidates produced under applicable GMP regulations. Our failure or the failure of our collaboration partners or CROs to comply with these regulations may require us or them to repeat clinical trials, which would delay the regulatory approval process and could also subject us to enforcement action. We are also required to register applicable clinical trials and post certain results of completed clinical trials on a government-sponsored database, ClinicalTrials.gov, within certain timeframes. Failure to do so can result in fines, adverse publicity and civil sanctions.

Joint ventures form an important part of our Commercial Platform business, and our ability to manage and develop the businesses conducted by these joint ventures depends in part on our relationship with our joint venture partners.

We are party to joint venture agreements with each of Shanghai Pharmaceuticals, Guangzhou Baiyunshan, Sinopharm and Hain Celestial, which together form an important part of our Commercial Platform business. Under these arrangements, our joint venture partners have certain operational responsibilities and/or certain rights to exercise control or influence over operations and decision-making.

Our equity interests in these operating companies do not provide us with the ability to control actions which require shareholder approval. In addition, under the joint venture contracts for these entities, the consent of the directors nominated by our joint venture partners is required for the passing of resolutions in relation to certain matters concerning the operations of these companies. As a result, although we participate in the management, and in the case of Sinopharm and Shanghai Pharmaceuticals nominate the management and run the day-to-day operations, we may not be able to secure the consent of our joint venture partners to pursue activities or strategic objectives that are beneficial to or that facilitate our overall business strategies. With respect to Hutchison Baiyunshan, which is a jointly controlled and managed joint venture where we share the ability to appoint the general manager with our partner Guangzhou Baiyunshan, with each of us having a rotating four-year right, we rely on our relationship with our partner, and our ability to manage the day-to-day operations of this joint venture is more limited. To the extent Guangzhou Baiyunshan does not, for example, diligently perform its responsibilities with respect

to any aspect of Hutchison Baiyunshan's operations, agree with or cooperate in the implementation of any plans we may have for Hutchison Baiyunshan's business in the future or take steps to ensure that Hutchison Baiyunshan is in compliance with applicable laws and regulations, our business and ability to comply with legal, regulatory and financial reporting requirements which will apply to us as a public company, as well as the results of this joint venture, could be materially and adversely affected. Furthermore, disagreements or disputes which arise between us and our joint venture partners may potentially require legal action to resolve and hinder the smooth operation of our Commercial Platform business or adversely affect our financial condition, results of operations and prospects.

We and our joint ventures rely on our distributors for logistics and distribution services for our Commercial Platform business.

We and our joint ventures rely on distributors to perform certain operational activities, including invoicing, logistics and delivery of the products we and they market to the end customers. Because we and our joint ventures rely on third-party distributors, we have less control than if we handled distribution logistics directly and can be adversely impacted by the actions of our distributors. Any disruption of our distribution network, including failure to renew existing distribution agreements with desired distributors, could negatively affect our ability to effectively sell our products and materially and adversely affect the business, financial condition and results of operations of us and our joint ventures.

There is no assurance that the benefits currently enjoyed by virtue of our association with CK Hutchison will continue to be available.

Historically, we have relied on the reputation and experience of, and support provided by, our founding shareholder, Hutchison Whampoa Limited (a wholly owned subsidiary of CK Hutchison), to advance our joint ventures and collaborations in China and elsewhere. CK Hutchison is a Hong Kong-based, multinational conglomerate with operations in over 50 countries. CK Hutchison is the ultimate parent company of Hutchison Healthcare Holdings Limited, which as of March 1, 2019, owns 60.2% of our total outstanding share capital. We believe that CK Hutchison group's reputation in China has given us an advantage in negotiating collaborations and obtaining opportunities.

We also benefit from sharing certain services with the CK Hutchison group including, among others, legal and regulatory services, company secretarial support services, tax and internal audit services, shared use of accounting software system and related services, participation in the CK Hutchison group's pension, medical and insurance plans, participation in the CK Hutchison group's procurement projects with third-party vendors/suppliers, other staff benefits and staff training services, company functions and activities and operation advisory and support services. We pay a management fee to an affiliate of CK Hutchison for the provision of such services. In the years ended December 31, 2016, 2017 and 2018, we paid a management fee of approximately $874,000, $897,000 and $922,000, respectively. In addition, we benefit from the fact that two retail chains affiliated with the CK Hutchison group, PARKnSHOP and Watsons, sell certain of our Commercial Platform products in their stores throughout Hong Kong and in other Asian countries. For the years ended December 31, 2016, 2017 and 2018, sales of our products to members of the CK Hutchison group amounted to $9.8 million, $8.5 million and $8.3 million, respectively.

Our business also depends on certain intellectual property rights licensed to us by the CK Hutchison group. See "—Risks Related to Intellectual Property—We and our joint ventures are dependent on trademark and other intellectual property rights licensed from others. If we lose our licenses for any of our products, we or our joint ventures may not be able to continue developing such products or may be required to change the way we market such products" for more information on risks associated with such intellectual property licensed to us.

There can be no assurance the CK Hutchison group will continue to provide the same benefits or support that they have provided to our business historically. Such benefit or support may no longer be

available to us, in particular, if CK Hutchison's ownership interest in our company significantly decreases in the future.

We and our joint ventures may be exposed to liabilities under the U.S. Foreign Corrupt Practices Act, or FCPA, the Bribery Act 2010 of the Parliament of the United Kingdom, or U.K. Bribery Act, and Chinese anti-corruption laws, and any determination that we have violated these laws could have a material adverse effect on our business or our reputation.

In the day-to-day conduct of our business, we and our joint ventures are in frequent contact with persons who may be considered government officials under applicable anti-corruption, anti-bribery and anti-kickback laws, and therefore, we and our joint ventures are subject to risk of violations under the FCPA, the U.K. Bribery Act, and other laws in the countries where we do business. We and our joint ventures have operations, agreements with third parties and we and our joint ventures make most of our sales in China. The PRC also strictly prohibits bribery of government officials. Our and our joint ventures' activities in China create the risk of unauthorized payments or offers of payments by the directors, employees, representatives, distributors, consultants or agents of our company or our joint ventures, even though they may not always be subject to our control.It is our policy to implement safeguards to discourage these practices by our and our joint ventures' employees. We have implemented and adopted policies designed by the R&D-based Pharmaceutical Association Committee, an industry association representing 40 global biopharmaceutical companies, to ensure compliance by us and our joint ventures and our and their directors, officers, employees, representatives, distributors, consultants and agents with the anti-corruption laws and regulations. We cannot assure you, however, that our existing safeguards are sufficient or that our or our joint ventures' directors, officers, employees, representatives, distributors, consultants and agents have not engaged and will not engage in conduct for which we may be held responsible, nor can we assure you that our business partners have not engaged and will not engage in conduct that could materially affect their ability to perform their contractual obligations to us or even result in our being held liable for such conduct. Violations of the FCPA, the U.K. Bribery Act or Chinese anti-corruption laws may result in severe criminal or civil sanctions, and we may be subject to other liabilities, which could have a material adverse effect on our business, reputation, financial condition, cash flows and results of operations.

Ensuring that our and our joint ventures' future business arrangements with third parties comply with applicable laws could also involve substantial costs. It is possible that governmental authorities will conclude that our business practices do not comply with current or future statutes, regulations or case law involving applicable fraud and abuse or other healthcare laws and regulations. If our or our joint ventures' operations were found to be in violation of any of these laws or any other governmental regulations that may apply to us, we may be subject to significant civil, criminal and administrative penalties, damages, fines, disgorgement, individual imprisonment and exclusion from government funded healthcare programs, any of which could substantially disrupt our operations. If the physicians, hospitals or other providers or entities with whom we and our joint ventures do business are found not to be in compliance with applicable laws, they may also be subject to criminal, civil or administrative sanctions, including exclusions from government funded healthcare programs.

If we or our joint ventures fail to comply with environmental, health and safety laws and regulations, we or they could become subject to fines or penalties or incur costs that could have a material adverse effect on the success of our business.

We and our joint ventures are subject to numerous environmental, health and safety laws and regulations, including those governing laboratory procedures and the handling, use, storage, treatment and disposal of hazardous materials and wastes. Our operations involve the use of hazardous and flammable materials, including chemical materials. Our operations also produce hazardous waste products. We and

our joint ventures are therefore subject to PRC laws and regulations concerning the discharge of waste water, gaseous waste and solid waste during our manufacturing processes. We and our joint ventures are required to establish and maintain facilities to dispose of waste and report the volume of waste to the relevant government authorities, which conduct scheduled or unscheduled inspections of our facilities and treatment of such discharge. We and our joint ventures may not at all times comply fully with environmental regulations. Any violation of these regulations may result in substantial fines, criminal sanctions, revocations of operating permits, shutdown of our facilities and obligation to take corrective measures. We and our joint ventures generally contract with third parties for the disposal of these materials and waste. We and our joint ventures cannot eliminate the risk of contamination or injury from these materials. In the event of contamination or injury resulting from the use of hazardous materials, we and/or our joint ventures could be held liable for any resulting damages, and any liability could exceed our resources. We and/or our joint ventures also could incur significant costs associated with civil or criminal fines and penalties.

Although we and our joint ventures maintain workers' compensation insurance to cover costs and expenses incurred due to on-the-job injuries to our employees and third-party liability insurance for injuries caused by unexpected seepage, pollution or contamination, this insurance may not provide adequate coverage against potential liabilities. Furthermore, the PRC government may take steps towards the adoption of more stringent environmental regulations. Due to the possibility of unanticipated regulatory or other developments, the amount and timing of future environmental expenditures may vary substantially from those currently anticipated. If there is any unanticipated change in the environmental regulations, we and our joint ventures may need to incur substantial capital expenditures to install, replace, upgrade or supplement our equipment or make operational changes to limit any adverse impact or potential adverse impact on the environment in order to comply with new environmental protection laws and regulations. If such costs become prohibitively expensive, we may be forced to cease certain aspects of our or our joint ventures' business operations.

Product liability claims or lawsuits could cause us or our joint ventures to incur substantial liabilities.

We and our joint ventures face an inherent risk of product liability exposure related to the use of our drug candidates in clinical trials, sales of our or our joint ventures' products or the products we or they license from third parties through our Commercial Platform. If we and our joint ventures cannot successfully defend against claims that the use of such drug candidates in our clinical trials or any products sold through our Commercial Platform, including fruquintinib and/or any of our drug candidates which receive regulatory approval, caused injuries, we and our joint ventures could incur substantial liabilities. Regardless of merit or eventual outcome, liability claims may result in:

Existing PRC laws and regulations do not require us or our joint ventures to have, nor do we or they, maintain liability insurance to cover product liability claims. We and our joint ventures do not have business liability, or in particular, product liability for each of our drug candidates or certain of our or their products. Any litigation might result in substantial costs and diversion of resources. While we and our joint ventures maintain liability insurance for certain clinical trials and products, this insurance may not fully

cover our potential liabilities. Inability to obtain sufficient insurance coverage at an acceptable cost or otherwise to protect against potential product liability claims could prevent or inhibit the commercialization of products that we or our collaborators develop.

We rely significantly on information technology and any failure, inadequacy, interruption or security lapse of that technology, including any cybersecurity incidents, could harm our ability to operate our business effectively.

We are heavily dependent on critical, complex and interdependent information technology systems, including internet-based systems, to support our business processes. Our information technology system security is continuously reviewed, maintained and upgraded in response to possible security breach incidents. Despite the implementation of these measures, our information technology systems and those of third parties with which we contract are vulnerable to damage from external or internal security incidents, breakdowns, malicious intrusions, cybercrimes, including State-sponsored cybercrimes, malware, misplaced or lost data, programming or human errors or other similar events. System failures, accidents or security breaches could cause interruptions in our operations and could result in inappropriately accessed, tampered with, modified or stolen scientific data or a material disruption of our clinical activities and business operations, in addition to possibly requiring substantial expenditures of resources to remedy. Such event could significantly harm our Innovation Platform's operations, including resulting in the loss of clinical trial data which could result in delays in our regulatory approval efforts and significantly increase our costs to recover or reproduce the data. Such events could also lead to the loss of important information such as trade secrets or other intellectual property and could accelerate the development or manufacturing of competing products by third parties. To the extent that any disruption or security breach were to result in a loss of, or damage to, our data or applications, or inappropriate disclosure of confidential or proprietary information, we could incur liability and our research and development programs and the development of our drug candidates could be delayed.

The PRC's economic, political and social conditions, as well as governmental policies, could affect the business environment and financial markets in China, our ability to operate our business, our liquidity and our access to capital.

Substantially all of our and our joint ventures' business operations are conducted in China. Accordingly, our results of operations, financial condition and prospects are subject to a significant degree to economic, political and legal developments in China. China's economy differs from the economies of developed countries in many respects, including with respect to the amount of government involvement, level of development, growth rate, control of foreign exchange and allocation of resources. While the PRC economy has experienced significant growth in the past 30 years, growth has been uneven across different regions and among various economic sectors of China. The PRC government has implemented various measures to encourage economic development and guide the allocation of resources. Some of these measures benefit the overall PRC economy, but may have a negative effect on us or our joint ventures. For example, our financial condition and results of operations may be adversely affected by government control over capital investments or changes in tax regulations that are applicable to us or our joint ventures. More generally, if the business environment in China deteriorates from the perspective of domestic or international investors, our or our joint ventures' business in China may also be adversely affected.

Uncertainties with respect to the PRC legal system and changes in laws, regulations and policies in China could materially and adversely affect us.

We conduct our business primarily through our subsidiaries and joint ventures in China. PRC laws and regulations govern our and their operations in China. Our subsidiaries and joint ventures are generally subject to laws and regulations applicable to foreign investments in China, which may not sufficiently cover all of the aspects of our or their economic activities in China. In particular, some laws, particularly with respect to drug price reimbursement, are relatively new, and because of the limited volume of published judicial decisions and their non-binding nature, the interpretation and enforcement of these laws and regulations are uncertain. Furthermore, recent regulatory reform in the China pharmaceutical industry will limit the number of distributors allowed between a manufacturer and each hospital to one, which may limit the rate of sales growth of Hutchison Sinopharm in future periods. In addition, the implementation of laws and regulations may be in part based on government policies and internal rules that are subject to the interpretation and discretion of different government agencies (some of which are not published on a timely basis or at all) that may have a retroactive effect. As a result, we may not be aware of our, our collaboration partners' or our joint ventures' violation of these policies and rules until sometime after the violation. In addition, any litigation in China, regardless of outcome, may be protracted and result in substantial costs and diversion of resources and management attention.

For further information regarding government regulation in China and other jurisdictions, see Item 4.B. "Business Overview—Regulation—Government Regulation of Pharmaceutical Product Development and Approval—PRC Regulation of Pharmaceutical Product Development and Approval," "Business Overview—Regulation—Coverage and Reimbursement—PRC Coverage and Reimbursement" and "Business Overview—Regulation—Other Healthcare Laws—Other PRC Healthcare Laws."

Restrictions on currency exchange may limit our ability to receive and use our revenue effectively.

Substantially all of our revenue is denominated in renminbi, which currently is not a freely convertible currency. A portion of our revenue may be converted into other currencies to meet our foreign currency obligations, including, among others, payments of dividends declared, if any, in respect of our ordinary shares or ADSs. Under China's existing foreign exchange regulations, our subsidiaries and joint ventures are able to pay dividends in foreign currencies or convert renminbi into other currencies for use in operations without prior approval from the PRC State Administration of Foreign Exchange, or the SAFE, by complying with certain procedural requirements. However, we cannot assure you that the PRC government will not take future measures to restrict access to foreign currencies for current account transactions.

Our PRC subsidiaries' and joint ventures' ability to obtain foreign exchange is subject to significant foreign exchange controls and, in the case of amounts under the capital account, requires the approval of and/or registration with PRC government authorities, including the SAFE. In particular, if we finance our PRC subsidiaries or joint ventures by means of foreign debt from us or other foreign lenders, the amount is not allowed to exceed either the cross-border financing risk weighted balance calculated based on a formula by the PBOC or the difference between the amount of total investment and the amount of the registered capital as acknowledged by the Ministry of Commerce, or MOFCOM, and the SAFE. Further, such loans must be filed with and registered with the SAFE or their local branches and the National Development and Reform Commission (if applicable). If we finance our PRC subsidiaries or joint ventures by means of additional capital contributions, the amount of these capital contributions must first be filed with the relevant government approval authority. These limitations could affect the ability of our PRC subsidiaries and joint ventures to obtain foreign exchange through debt or equity financing.

Our business benefits from certain PRC government tax incentives. The expiration of, changes to, or our PRC subsidiaries/joint ventures failing to continuously meet the criteria for these incentives could have a material adverse effect on our operating results by significantly increasing our tax expenses.

Certain of our PRC subsidiaries and joint ventures have been successful in their respective applications to renew/for the special High and New Technology Enterprise, or HNTE, status and/or granted the Technological Advance Service Enterprise, or TASE, status by the relevant PRC authorities. Both of these statuses allow the relevant enterprise to enjoy a reduced Enterprise Income Tax, or EIT, rate at 15% on its taxable profits. The statuses are valid until the end of 2019 or 2020 (for HNTE, renewal is done every three years) or 2018 (for TASE, renewal is done every three years in general) during which the relevant PRC enterprise must continue to meet the relevant criteria or else the 25% standard EIT rate will be applied from the beginning of the calendar year when the enterprise fails to meet the relevant criteria. In addition, it is unclear whether the HNTE/TASE status and tax incentives under the current policy will continue to be granted after their respective expiration dates. If the rules for such incentives are amended or the statuses are not renewed, higher EIT rates may apply resulting in increased tax burden which will impact our business, financial condition, results of operations and growth prospects.

We may be treated as a resident enterprise for PRC Tax purposes under the PRC EIT Law, and our global income may therefore be subject to PRC income tax.

China's EIT Law and the Regulation on the Implementation of the EIT Law, effective as of January 1, 2008, define the term "de facto management bodies" as "bodies that substantially carry out comprehensive management and control on the business operation, employees, accounts and assets of enterprises." Under the EIT Law, an enterprise incorporated outside of China whose "de facto management bodies" are located in China is considered a "resident enterprise" and will be subject to a uniform 25% EIT rate on its global income. On April 22, 2009, China's State Administration of Taxation, or the SAT, in the Notice Regarding the Determination of Chinese-Controlled Offshore-Incorporated Enterprises as PRC Tax Resident Enterprises on the Basis of De Facto Management Bodies, or Circular 82, further specified certain criteria for the determination of what constitutes "de facto management bodies." If all of these criteria are met, the relevant foreign enterprise may be regarded to have its "de facto management bodies" located in China and therefore be considered a resident enterprise in China. These criteria include: (i) the enterprise's day-to-day operational management is primarily exercised in China; (ii) decisions relating to the enterprise's financial and human resource matters are made or subject to approval by organizations or personnel in China; (iii) the enterprise's primary assets, accounting books and records, company seals, and board and shareholders' meeting minutes are located or maintained in China; and (iv) 50% or more of voting board members or senior executives of the enterprise habitually reside in China. Although Circular 82 only applies to foreign enterprises that are majority-owned and controlled by PRC enterprises, not those owned and controlled by foreign enterprises or individuals, the determining criteria set forth in Circular 82 may be adopted by the PRC tax authorities as the test for determining whether the enterprises are PRC tax residents, regardless of whether they are majority-owned and controlled by PRC enterprises.

Except for our PRC subsidiaries and joint ventures incorporated in China, we believe that none of our entities incorporated outside of China is a PRC resident enterprise for PRC tax purposes. However, the tax resident status of an enterprise is subject to determination by the PRC tax authorities, and uncertainties remain with respect to the interpretation of the term "de facto management body."

If we are treated as a PRC tax resident, dividends distributed by us to our non-PRC shareholders and ADS holders or any gains realized by non-PRC shareholders and ADS holders from the transfer of our shares or ADSs may be subject to PRC tax.

Under the EIT Law, dividends payable by a PRC enterprise to its foreign investor who is a non-PRC resident enterprise, as well as gains on transfers of shares of a PRC enterprise by such a foreign investor will generally be subject to a 10% withholding tax, unless such non-PRC resident enterprise's jurisdiction

of tax residency has an applicable tax treaty with the PRC that provides for a reduced rate of withholding tax.

If the PRC tax authorities determine that we should be considered a PRC resident enterprise for EIT purposes, any dividends payable by us to our non-PRC resident enterprise shareholders or ADS holders, as well as gains realized by such investors from the transfer of our shares or ADSs may be subject to a 10% withholding tax, unless a reduced rate is available under an applicable tax treaty. Furthermore, if we are considered a PRC resident enterprise for EIT purposes, it is unclear whether our non-PRC individual shareholders (including our ADS holders) would be subject to any PRC tax on dividends or gains obtained by such non-PRC individual shareholders. If any PRC tax were to apply to dividends or gains realized by non-PRC individuals, it would generally apply at a rate of up to 20% unless a reduced rate is available under an applicable tax treaty. If dividends payable to our non-PRC resident shareholders, or gains from the transfer of our shares or ADSs by such shareholders are subject to PRC tax, the value of your investment in our shares or ADSs may decline significantly.

There is uncertainty regarding the PRC withholding tax rate that will be applied to distributions from our PRC subsidiaries and joint ventures to their respective Hong Kong immediate holding companies, which could have a negative impact on our business.

The EIT Law provides that a withholding tax at the rate of 10% is applicable to dividends payable by a PRC resident enterprise to investors who are "non-resident enterprises" (i.e., that do not have an establishment or place of business in the PRC or that have such establishment or place of business but the relevant dividend is not effectively connected with the establishment or place of business). However, pursuant to the Arrangement between the Mainland of China and the Hong Kong Special Administrative Region for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with respect to Taxes on Income, or the Arrangement, withholding tax at a reduced rate of 5% may be applicable to dividends payable by PRC resident enterprises to beneficial owners of the dividends that are Hong Kong tax residents if certain requirements are met.There is uncertainty regarding whether the PRC tax authorities will consider us to be eligible to the reduced tax rate. If the Arrangement is deemed not to apply to dividends payable by our PRC subsidiaries and joint ventures to their respective Hong Kong immediate holding companies that are ultimately owned by us, the withholding tax rate applicable to us will be the statutory rate of 10% instead of 5% which may potentially impact our business, financial condition, results of operations and growth prospects.

We may be treated as a resident enterprise for U.K. corporate tax purposes, and our global income may therefore be subject to U.K. corporation tax.

U.K. resident companies are taxable in the United Kingdom on their worldwide profits. A company incorporated outside of the United Kingdom would be regarded as a resident if its central management and control resides in the United Kingdom. The place of central management and control generally means the place where the high-level strategic decisions of a company are made.

We are an investment holding company incorporated in the Cayman Islands that is listed on the AIM market of the London Stock Exchange. Our central management and control resides in Hong Kong, and therefore we believe that we are not a U.K. resident for corporate tax purposes. However, the tax resident status of a non-resident entity could be challenged by the U.K. tax authorities.

If the U.K. tax authorities determine that we are a U.K. tax resident, our profits will be subject to U.K. Corporation Tax rate at 19%, subject to the potential availability of certain exemptions related to dividend income and capital gains. This may have a material adverse effect on our financial condition and results of operations.

Any failure to comply with PRC regulations regarding our employee equity incentive plans may subject the PRC plan participants or us to fines and other legal or administrative sanctions, which could adversely affect our business, financial condition and results of operations.

In February 2012, the SAFE promulgated the Notices on Issues Concerning the Foreign Exchange Administration for Domestic Individuals Participating in Stock Incentive Plans of Overseas Publicly Listed Companies. Based on this regulation, PRC residents who are granted shares or share options by a company listed on an overseas stock market under its employee share option or share incentive plan are required to register with the SAFE or its local counterparts by following certain procedures. We and our employees who are PRC residents and individual beneficial owners who have been granted shares or share options have been subject to these rules due to our listing on the AIM market of the London Stock Exchange and the listing of our ADSs on the Nasdaq Global Select Market. We have registered the option schemes and the share incentive plan and will continue to assist our employees to register their share options or shares. However, any failure of our PRC individual beneficial owners and holders of share options or shares to comply with the SAFE registration requirements in the future may subject them to fines and legal sanctions and may, in rare instances, limit the ability of our PRC subsidiaries to distribute dividends to us.

In addition, the SAT has issued circulars concerning employee share options or restricted shares. Under these circulars, employees working in the PRC who exercise share options, or whose restricted shares vest, will be subject to PRC individual income tax, or IIT. The PRC subsidiaries of an overseas listed company have obligations to file documents related to employee share options or restricted shares with relevant tax authorities and to withhold IIT of those employees related to their share options or restricted shares. Although the PRC subsidiaries currently withhold IIT from the PRC employees in connection with their exercise of share options, if they fail to report and pay the tax withheld according to relevant laws, rules and regulations, the PRC subsidiaries may face sanctions imposed by the tax authorities or other PRC government authorities.

If we, our joint ventures or our collaboration partners are unable to protect our or their products and drug candidates through intellectual property rights, our competitors may compete directly against us or them.

Our success depends, in part, on our, our joint venture partners' and our collaboration partners' ability to protect our and our joint ventures' and our collaboration partners' products and drug candidates from competition by establishing, maintaining and enforcing our or their intellectual property rights. We, our joint ventures and our collaboration partners seek to protect the products and technology that we and they consider commercially important by filing PRC and international patent applications, relying on trade secrets or pharmaceutical regulatory protection or employing a combination of these methods. As of December 31, 2018, we had 176 issued patents, including 18 Chinese patents, 20 U.S. patents and nine European patents, 130 patent applications pending in the above major market jurisdictions, and six pending Patent Cooperation Treaty, or PCT, patent applications relating to the drug candidates of our Innovation Platform. Our collaboration partner AstraZeneca is responsible for maintaining and enforcing our intellectual property rights in relation to savolitinib. As of the same date, our joint venture Nutrition Science Partners had 24 issued patents and three pending patent applications relating to HMPL-004 and its reformulation HM004-6599. Additionally, our joint ventures collectively had 133 issued patents and 11 patent applications in China and other jurisdictions relating to our Commercial Platform's products as of December 31, 2018. For more details, see Item 4.B. "Business Overview—Patents and Other Intellectual Property." Patents may become invalid and patent applications may not be granted for a number of reasons, including known or unknown prior art, deficiencies in the patent application or the lack of originality of the technology. In addition, the PRC and the United States have adopted the "first-to-file" system under which whoever first files an invention patent application will be awarded the patent. Under the first-to-file system, third parties may be granted a patent relating to a technology which we invented. Furthermore, the terms of patents are finite. The patents we hold and patents to be issued from our

currently pending patent applications generally have a twenty-year protection period starting from the date of application.

We, our joint ventures and/or our collaboration partners may become involved in patent litigation against third parties to enforce our or their patent rights, to invalidate patents held by such third parties, or to defend against such claims. A court may refuse to stop the other party from using the technology at issue on the grounds that our or our joint ventures' patents do not cover the third-party technology in question. Further, such third parties could counterclaim that we or our joint ventures infringe their intellectual property or that a patent we, our joint ventures or our collaboration partners have asserted against them is invalid or unenforceable. In patent litigation, defendant counterclaims challenging the validity, enforceability or scope of asserted patents are commonplace. In addition, third parties may initiate legal proceedings against us or our intellectual property to assert such challenges to our intellectual property rights.

The outcome of any such proceeding is generally unpredictable. Grounds for a validity challenge could be an alleged failure to meet any of several statutory requirements, including lack of novelty, obviousness or non-enablement. Patents may be unenforceable if someone connected with prosecution of the patent withheld relevant information or made a misleading statement during prosecution. It is possible that prior art of which we, our joint ventures or our collaboration partners and the patent examiner were unaware during prosecution exists, which could render our or their patents invalid. Moreover, it is also possible that prior art may exist that we, our joint ventures or our collaboration partners are aware of but do not believe is relevant to our or their current or future patents, but that could nevertheless be determined to render our patents invalid. The cost to us or our joint ventures of any patent litigation or similar proceeding could be substantial, and it may consume significant management time. We and our joint ventures do not maintain insurance to cover intellectual property infringement.

An adverse result in any litigation proceeding could put one or more of our or our joint ventures' patents at risk of being invalidated or interpreted narrowly. If a defendant were to prevail on a legal assertion of invalidity or unenforceability of our patents covering one of our or our joint ventures' products or our drug candidates, we could lose at least part, and perhaps all, of the patent protection covering such product or drug candidate. Competing drugs may also be sold in other countries in which our or our joint ventures' patent coverage might not exist or be as strong. If we lose a foreign patent lawsuit, alleging our or our joint ventures' infringement of a competitor's patents, we could be prevented from marketing our drugs in one or more foreign countries. Any of these outcomes would have a materially adverse effect on our business.

Intellectual property and confidentiality legal regimes in China may not afford protection to the same extent as in the United States or other countries. Implementation and enforcement of PRC intellectual property laws may be deficient and ineffective. Policing unauthorized use of proprietary technology is difficult and expensive, and we or our joint ventures may need to resort to litigation to enforce or defend patents issued to us or them or to determine the enforceability, scope and validity of our proprietary rights or those of others. The experience and capabilities of PRC courts in handling intellectual property litigation varies, and outcomes are unpredictable. Further, such litigation may require a significant expenditure of cash and may divert management's attention from our or our joint ventures' operations, which could harm our business, financial condition and results of operations. An adverse determination in any such litigation could materially impair our or our joint ventures' intellectual property rights and may harm our business, prospects and reputation.

From time to time, authorities in the United States, China and other government authorities may change the standards of patentability, and any such changes could have a negative impact on our business.

For example, in the United States, the Leahy-Smith America Invents Act, or the America Invents Act, which was signed into law in 2011, includes a number of significant changes to U.S. patent law. These changes include a transition from a "first-to-invent" system to a "first-to-file" system, changes to the way issued patents are challenged, and changes to the way patent applications are disputed during the examination process. As a result of these changes, patent law in the United States may favor larger and more established companies that have greater resources to devote to patent application filing and prosecution. The U.S. Patent and Trademark Office, or USPTO, has developed new and untested regulations and procedures to govern the full implementation of the America Invents Act, and many of the substantive changes to patent law associated with the America Invents Act, and, in particular, the first-to-file provisions became effective on March 16, 2013. Substantive changes to patent law associated with the America Invents Act may affect our ability to obtain patents, and if obtained, to enforce or defend them. Accordingly, it is not clear what, if any, impact the America Invents Act will have on the cost of prosecuting our or our joint ventures' patent applications and our or their ability to obtain patents based on our or our joint ventures' discoveries and to enforce or defend any patents that may issue from our or their patent applications, all of which could have a material adverse effect on our business.

If we are unable to maintain the confidentiality of our and our joint ventures' trade secrets, the business and competitive position of ourselves and our joint ventures may be harmed.

In addition to the protection afforded by patents and the PRC's State Secret certification, we and our joint ventures rely upon unpatented trade secret protection, unpatented know-how and continuing technological innovation to develop and maintain our competitive position. We seek to protect our and our joint ventures' proprietary technology and processes, in part, by entering into confidentiality agreements with our and their collaborators, scientific advisors, employees and consultants, and invention assignment agreements with our and their consultants and employees. We and our joint ventures may not be able to prevent the unauthorized disclosure or use of our or their technical know-how or other trade secrets by the parties to these agreements, however, despite the existence generally of confidentiality agreements and other contractual restrictions. If any of the collaborators, scientific advisors, employees and consultants who are parties to these agreements breaches or violates the terms of any of these agreements, we and our joint ventures may not have adequate remedies for any such breach or violation, and we could lose our trade secrets as a result. Enforcing a claim that a third-party illegally obtained and is using our or our joint ventures' trade secrets, like patent litigation, is expensive and time consuming, and the outcome is unpredictable. In addition, courts in China and other jurisdictions outside the United States are sometimes less prepared or willing to protect trade secrets.

Our and our joint ventures' trade secrets could otherwise become known or be independently discovered by our or their competitors. For example, competitors could purchase our drugs and attempt to replicate some or all of the competitive advantages we derive from our development efforts, willfully infringe our intellectual property rights, design around our protected technology or develop their own competitive technologies that fall outside of our intellectual property rights. If any of our or our joint ventures' trade secrets were to be lawfully obtained or independently developed by a competitor, we and our joint ventures would have no right to prevent them, or others to whom they communicate it, from using that technology or information to compete against us or our joint ventures. If our or our joint ventures' trade secrets are unable to adequately protect our business against competitors' drugs, our competitive position could be adversely affected, as could our business.

We and our joint ventures are dependent on trademark and other intellectual property rights licensed from others. If we lose our licenses for any of our products, we or our joint ventures may not be able to continue developing such products or may be required to change the way we market such products.

We and our joint ventures are parties to licenses that give us or them rights to third-party intellectual property that are necessary or useful for our or our joint ventures' businesses. In particular, the

"Hutchison," "Chi-Med" and "China-MediTech" brands, among others, have been licensed to us by Hutchison Whampoa Enterprises Limited, an affiliate of our majority shareholder, Hutchison Healthcare Holdings Limited. Hutchison Whampoa Enterprises Limited grants us a royalty-free, worldwide license to such brands. Hutchison Whampoa Enterprises Limited has the right to terminate the license during the 12-month period following each time the interest of Hutchison Whampoa Limited, an indirect shareholder of Hutchison Healthcare Holdings Limited, in us is reduced below 50%, 40%, 30% or 20%. Currently, Hutchison Whampoa Limited's interest in our company is less than 20%, but we do not anticipate that Hutchison Whampoa Enterprises Limited will terminate such license in the foreseeable future. In addition, the "Baiyunshan" brand, which is a key brand used by Hutchison Baiyunshan on its products, has been licensed to Hutchison Baiyunshan by our joint venture partner, Guangzhou Baiyunshan, for use during the 50-year joint venture period; however, Guangzhou Baiyunshan has the right to terminate the license if its interest in Hutchison Baiyunshan falls below 50%. If any such license is terminated, our or Hutchison Baiyunshan's business, and our or their positioning in the Chinese market and our financial condition, results of operations and prospects may be materially and adversely affected.

In some cases, our licensors have retained the right to prosecute and defend the intellectual property rights licensed to us or our joint ventures. We depend in part on the ability of our licensors to obtain, maintain and enforce intellectual property protection for such licensed intellectual property. Such licensors may not successfully maintain their intellectual property, may determine not to pursue litigation against other companies that are infringing on such intellectual property, or may pursue litigation less aggressively than we or our joint ventures would. Without protection for the intellectual property we or our joint ventures license, other companies might be able to offer substantially identical products or branding, which could adversely affect our competitive business position and harm our business prospects.

If our or our joint ventures' products or drug candidates infringe the intellectual property rights of third parties, we and they may incur substantial liabilities, and we and they may be unable to sell these products.

Our commercial success depends significantly on our and our joint ventures' ability to operate without infringing the patents and other proprietary rights of third parties. In the PRC, invention patent applications are generally maintained in confidence until their publication 18 months from the filing date. The publication of discoveries in the scientific or patent literature frequently occurs substantially later than the date on which the underlying discoveries were made and invention patent applications are filed. Even after reasonable investigation, we may not know with certainty whether any third-party may have filed a patent application without our knowledge while we or our joint ventures are still developing or producing that product. While the success of pending patent applications and applicability of any of them to our or our joint ventures' programs are uncertain, if asserted against us or them, we could incur substantial costs and we or they may have to:

To date, we and our joint ventures have not received any material claims of infringement by any third parties. If a third-party claims that we or our joint ventures infringe its proprietary rights, any of the following may occur:

Any costs incurred in connection with such events or the inability to sell our or our joint ventures' products may have a material adverse effect on our business and results of operations.

We, our joint ventures and our collaboration partners may not be able to effectively enforce our intellectual property rights throughout the world.

Filing, prosecuting and defending patents on our or our joint venture's products or drug candidates in all countries throughout the world would be prohibitively expensive. The requirements for patentability may differ in certain countries, particularly in developing countries. Moreover, our, our joint ventures' or our collaboration partners' ability to protect and enforce our or their intellectual property rights may be adversely affected by unforeseen changes in foreign intellectual property laws. Additionally, the patent laws of some foreign countries do not afford intellectual property protection to the same extent as the laws of the United States. Many companies have encountered significant problems in protecting and defending intellectual property rights in certain foreign jurisdictions. The legal systems of some countries, particularly developing countries, may not favor the enforcement of patents and other intellectual property rights. This could make it difficult for us or our joint ventures to stop the infringement of our or their patents or the misappropriation of our or their other intellectual property rights. For example, many foreign countries have compulsory licensing laws under which a patent owner must grant licenses to third parties. Consequently, we may not be able to prevent third parties from practicing our or our joint ventures' inventions throughout the world. Competitors may use our or our joint ventures' technologies in jurisdictions where we or they have not obtained patent protection to develop their own drugs and, further, may export otherwise infringing drugs to territories where we or our joint ventures have patent protection, if our, our joint ventures' or our collaboration partners' ability to enforce our or their patents to stop infringing activities is inadequate. These drugs may compete with our drug candidates, and our patents or other intellectual property rights may not be effective or sufficient to prevent them from competing.

Proceedings to enforce our or our joint ventures' patent rights in foreign jurisdictions, whether or not successful, could result in substantial costs and divert our or their efforts and resources from other aspects of our and their businesses. While we intend to protect our intellectual property rights in the major markets for our drug candidates, we cannot ensure that we will be able to initiate or maintain similar efforts in all jurisdictions in which we may wish to market our drug candidates. Furthermore, as AstraZeneca is responsible for enforcing our intellectual property rights with respect to savolitinib on our behalf, we may be unable to ensure that such rights are enforced or maintained in all jurisdictions. Accordingly, our efforts to protect the intellectual property rights of our drug candidates in such countries may be inadequate.

We and our joint ventures may be subject to damages resulting from claims that we or they, or our or their employees, have wrongfully used or disclosed alleged trade secrets of competitors or are in breach of non-competition or non-solicitation agreements with competitors.

We and our joint ventures could in the future be subject to claims that we or they, or our or their employees, have inadvertently or otherwise used or disclosed alleged trade secrets or other proprietary information of former employers or competitors. Although we try to ensure that our and our joint ventures' employees and consultants do not improperly use the intellectual property, proprietary information, know-how or trade secrets of others in their work for us or our joint ventures, we or our joint

ventures may in the future be subject to claims that we or they caused an employee to breach the terms of his or her non-competition or non-solicitation agreement, or that we, our joint ventures, or these individuals have, inadvertently or otherwise, used or disclosed the alleged trade secrets or other proprietary information of a former employer or competitor. Litigation may be necessary to defend against these claims. Even if we and our joint ventures are successful in defending against these claims, litigation could result in substantial costs and could be a distraction to management. If our or our joint ventures' defenses to these claims fail, in addition to requiring us and them to pay monetary damages, a court could prohibit us or our joint ventures from using technologies or features that are essential to our or their products or our drug candidates, if such technologies or features are found to incorporate or be derived from the trade secrets or other proprietary information of the former employers. An inability to incorporate such technologies or features would have a material adverse effect on our business, and may prevent us from successfully commercializing our drug candidates. In addition, we or our joint ventures may lose valuable intellectual property rights or personnel as a result of such claims. Moreover, any such litigation or the threat thereof may adversely affect our or our joint ventures' ability to hire employees or contract with independent sales representatives. A loss of key personnel or their work product could hamper or prevent our ability to commercialize our drug candidates, which would have an adverse effect on our business, results of operations and financial condition.

Certain shareholders own a significant percentage of our ordinary shares, which limits the ability of other shareholders to influence corporate matters.

As of March 1, 2019, Hutchison Healthcare Holdings Limited owns approximately 60.2% of our ordinary shares. Accordingly, Hutchison Healthcare Holdings Limited has a significant influence over the outcome of any corporate transaction or other matter submitted to shareholders for approval and the interests of Hutchison Healthcare Holdings Limited may differ from the interests of our other shareholders. Because we are incorporated in the Cayman Islands, certain matters, such as amendments to our memorandum and articles of association, require approval of at least two-thirds of our shareholders by law subject to higher thresholds which we may set in our memorandum and articles of association. Therefore, Hutchison Healthcare Holdings Limited's approval will be required to achieve any such threshold. In addition, Hutchison Healthcare Holdings Limited will have a significant influence over the management and the strategic direction of our company.

Substantial future sales or perceived potential sales of our ADSs, ordinary shares or other equity or equity-linked securities in the public market could cause the price of our ADSs to decline significantly.

Sales of our ADSs, ordinary shares or other equity or equity-linked securities in the public market, or the perception that these sales could occur, could cause the market price of our ADSs to decline significantly. All of our ordinary shares represented by ADSs are freely transferable by persons other than our affiliates without restriction or additional registration under the Securities Act of 1933, or the Securities Act. The ordinary shares held by our affiliates are also available for sale, subject to volume and other restrictions as applicable under Rules 144 and 701 under the Securities Act, under sales plans adopted pursuant to Rule 10b5-1 or otherwise.

We have filed with the SEC a Registration Statement on Form F-3, commonly referred to as a "shelf registration," that permits us to sell any number of ADSs in a registered offering at our discretion. The shelf registration was automatically effective as of the filing date, April 3, 2017. On October 30, 2017, we completed a registered offering of 11,369,810 ADSs under the shelf registration statement, raising total gross proceeds of approximately $301.3 million. We may decide to conduct future offerings from time to time, and such sales could cause the price of our ADSs to decline significantly.

Historically, securities class action litigation has often been brought against a company following a decline in the market price of its securities. This risk is especially relevant for us because biotechnology and biopharmaceutical companies have experienced significant share price volatility in recent years. If we were to be sued, it could result in substantial costs and a diversion of management's attention and resources, which could harm our business.

If securities analysts do not publish research or reports about our business or if they publish negative evaluations of our business, the price of our ADSs could decline.

The trading market for our ADSs will rely in part on the research and reports that industry or financial analysts publish about us or our business. We may never obtain research coverage by industry or financial analysts. If one or more of the analysts covering our business downgrade their evaluations of our stock, the price of our stock could decline. If one or more of these analysts cease to cover our stock, we could lose visibility in the market for our stock, which in turn could cause our stock price to decline.

As a foreign private issuer, we are not subject to certain U.S. securities law disclosure requirements that apply to a domestic U.S. issuer, which may limit the information publicly available to our shareholders.

As a foreign private issuer we are not required to comply with all of the periodic disclosure and current reporting requirements of the Exchange Act and therefore there may be less publicly available information about us than if we were a U.S. domestic issuer. For example, we are not subject to the proxy rules in the United States and disclosure with respect to our annual general meetings will be governed by the AIM Rules for Companies, or the AIM Rules, and Cayman Islands requirements. In addition, our officers, directors and principal shareholders are exempt from the reporting and "short-swing" profit recovery provisions of Section 16 of the Exchange Act and the rules thereunder. Therefore, our shareholders may not know on a timely basis when our officers, directors and principal shareholders purchase or sell our ordinary shares or ADSs.

As a foreign private issuer, we are permitted to adopt certain home country practices in relation to corporate governance matters that differ significantly from Nasdaq corporate governance listing standards. These practices may afford less protection to shareholders than they would enjoy if we complied fully with corporate governance listing standards.

As a foreign private issuer, we are permitted to take advantage of certain provisions in the Nasdaq listing rules that allow us to follow Cayman Islands law for certain governance matters. Certain corporate governance practices in the Cayman Islands may differ significantly from corporate governance listing standards as, except for general fiduciary duties and duties of care, Cayman Islands law has no corporate governance regime which prescribes specific corporate governance standards. We intend to continue to follow Cayman Islands corporate governance practices in lieu of the corporate governance requirements of the Nasdaq Global Select Market in respect of the following: (i) the majority independent director requirement under Section 5605(b)(1) of the Nasdaq listing rules, (ii) the requirement under Section 5605(d) of the Nasdaq listing rules that a remuneration committee comprised solely of independent directors governed by a remuneration committee charter oversee executive compensation and (iii) the requirement under Section 5605(e) of the Nasdaq listing rules that director nominees be selected or recommended for selection by either a majority of the independent directors or a nominations committee comprised solely of independent directors. Cayman Islands law does not impose a requirement that our board of directors consist of a majority of independent directors. Nor does Cayman Islands law impose specific requirements on the establishment of a remuneration committee or nominating committee or nominating process. Therefore, our shareholders may be afforded less protection than they otherwise would have under corporate governance listing standards applicable to U.S. domestic issuers. We have voluntarily complied with many of the principles of the U.K. published by the U.K. Financial Reporting

Council which guides certain of our other corporate governance practices. See Item 6.C. "Board Practice—U.K. Corporate Governance Code" for more details.

We may lose our foreign private issuer status in the future, which could result in significant additional costs and expenses.

As discussed above, we are a foreign private issuer, and therefore, we are not required to comply with all of the periodic disclosure and current reporting requirements of the Exchange Act. The determination of foreign private issuer status is made annually on the last business day of an issuer's most recently completed second fiscal quarter, and, accordingly, the next determination will be made with respect to us on June 30, 2019. We would lose our foreign private issuer status if, for example, more than 50% of our ordinary shares are directly or indirectly held by residents of the United States on June 30, 2019 and we fail to meet additional requirements necessary to maintain our foreign private issuer status. If we lose our foreign private issuer status on this date, we will be required to file with the SEC periodic reports and registration statements on U.S. domestic issuer forms beginning on January 1, 2020, which are more detailed and extensive than the forms available to a foreign private issuer. We will also have to mandatorily comply with U.S. federal proxy requirements, and our officers, directors and principal shareholders will become subject to the short-swing profit disclosure and recovery provisions of Section 16 of the Exchange Act. In addition, we will lose our ability to rely upon exemptions from certain corporate governance requirements under the Nasdaq listing rules. As a U.S.-listed public company that is not a foreign private issuer, we will incur significant additional legal, accounting and other expenses that we will not incur as a foreign private issuer.

Certain audit reports included in this annual report were prepared by an auditor who is not inspected by the U.S. Public Company Accounting Oversight Board, or the PCAOB, and as such, you are deprived of the benefits of such inspection.

Auditors of companies that are registered with the SEC and traded publicly in the United States, including the independent registered public accounting firm of our company, must be registered with the PCAOB, and are required by the laws of the United States to undergo regular inspections by the PCAOB to assess their compliance with the laws of the United States and professional standards. Because we have substantial operations within the PRC, a jurisdiction where the PCAOB is currently unable to conduct inspections without the approval of the Chinese authorities, our auditor and the auditors of our joint ventures are not currently inspected by the PCAOB.

In May 2013, the PCAOB announced that it had entered into a Memorandum of Understanding on Enforcement Cooperation with the China Securities Regulatory Commission, or CSRC, and the Ministry of Finance, or MOF, which establishes a cooperative framework between the parties for the production and exchange of audit documents relevant to investigations undertaken by the PCAOB in the United States and the CSRC or the MOF in the PRC. The PCAOB continues to be in discussions with the CSRC and the MOF to permit joint inspections in the PRC of audit firms that are registered with PCAOB and audit Chinese companies that trade on U.S. exchanges.

This lack of PCAOB inspections in China prevents the PCAOB from regularly evaluating audits and quality control procedures of any auditors operating in China, including our auditor and the auditors of our joint ventures. As a result, investors may be deprived of the benefits of PCAOB inspections. The inability of the PCAOB to conduct inspections of auditors in China makes it more difficult to evaluate the effectiveness of our auditor's audit procedures or quality control procedures as compared to auditors outside of China that are subject to PCAOB inspections. Investors may lose confidence in our reported financial information and procedures and the quality of our financial statements.

We do not currently intend to pay dividends on our securities, and, consequently, your ability to achieve a return on your investment will depend on appreciation in the price of the ADSs.

We have never declared or paid any dividends on our ordinary shares. We currently intend to invest our future earnings, if any, to fund our growth. Therefore, you are not likely to receive any dividends on your ADSs at least in the near term, and the success of an investment in ADSs will depend upon any future appreciation in its value. Consequently, investors may need to sell all or part of their holdings of ADSs after price appreciation, which may never occur, to realize any future gains on their investment. There is no guarantee that the ADSs will appreciate in value or even maintain the price at which our shareholders have purchased the ADSs.

The market price for our ADSs may be volatile which could result in substantial loss to you.

The market price of our ADSs has been volatile. From March 17, 2016 to March 1, 2019, the closing sale price of our ADSs ranged from a high of $41.14 to a low of $11.26 per ADS.

The market price for our ADSs is likely to be highly volatile and subject to wide fluctuations in response to factors, including the following:

In addition, the securities markets have from time to time experienced significant price and volume fluctuations that are not related to the operating performance of particular companies. For example, in 2018 the exchanges in China experienced a sharp decline as a result of a slowdown in the Chinese economy and trade tensions with the United States. Prolonged global capital markets volatility may affect overall investor sentiment towards our ADSs, which would also negatively affect the trading prices for our ADSs.

The dual listing of our ordinary shares and the ADSs may adversely affect the liquidity and value of the ADSs.

Our ordinary shares continue to be listed on the AIM market of the London Stock Exchange. The dual listing of our ordinary shares and the ADSs may dilute the liquidity of these securities in one or both markets and may adversely affect the development of an active trading market for the ADSs in the United States. The price of the ADSs could also be adversely affected by trading in our ordinary shares on the AIM market. Furthermore, our ordinary shares trade on the AIM market of the London Stock Exchange in the form of depository interests, each of which is an electronic book-entry interest representing one of our ordinary shares. However, the ADSs are backed by physical ordinary share certificates, and the depositary for our ADS program is unable to accept depository interests into its custody in order to issue ADSs. As a result, if an ADS holder wishes to cancel its ADSs and instead hold depository interests for trading on the AIM market or vice versa, the issuance and cancellation process may be longer than if the depositary could accept such depository interests.

Although our ordinary shares continue to be listed on the AIM market following our initial public offering in the United States completed in March 2016, we may decide at some point in the future to

propose to our ordinary shareholders to delist our ordinary shares from the AIM market, and our ordinary shareholders may approve such delisting. We cannot predict the effect such delisting of our ordinary shares on the AIM market would have on the market price of the ADSs on the Nasdaq Global Select Market.

Fluctuations in the exchange rate between the U.S. dollar and the pound sterling may increase the risk of holding the ADSs.

Our share price is quoted on the AIM market of the London Stock Exchange in pence sterling, while the ADSs will trade on Nasdaq in U.S. dollars. Fluctuations in the exchange rate between the U.S. dollar and the pound sterling may result in temporary differences between the value of the ADSs and the value of our ordinary shares, which may result in heavy trading by investors seeking to exploit such differences. In addition, as a result of fluctuations in the exchange rate between the U.S. dollar and the pound sterling, the U.S. dollar equivalent of the proceeds that a holder of the ADSs would receive upon the sale in the United Kingdom of any shares withdrawn from the depositary and the U.S. dollar equivalent of any cash dividends paid in pound sterling on our shares represented by the ADSs could also decline.

Fluctuations in the value of the renminbi may have a material adverse effect on your investment.

The value of the renminbi against the U.S. dollar and other currencies may fluctuate and is affected by, among other things, changes in political and economic conditions. On July 21, 2005, the PRC government changed its decade-old policy of pegging the value of the renminbi to the U.S. dollar, and the renminbi appreciated more than 20% against the U.S. dollar over the following three years. Between July 2008 and June 2010, this appreciation halted, and the exchange rate between the renminbi and U.S. dollar remained within a narrow band. In June 2010, China's People's Bank of China, or PBOC, announced that the PRC government would increase the flexibility of the exchange rate, and thereafter allowed the renminbi to appreciate slowly against the U.S. dollar within the narrow band fixed by the PBOC. However, on August 11, 12 and 13, 2015, the PBOC significantly devalued the renminbi by fixing its price against the U.S. dollar 1.9%, 1.6%, and 1.1% lower than the previous day's value, respectively. In 2016, the renminbi further depreciated against the U.S. dollar by approximately 7.1%, but in 2017, the renminbi appreciated against the U.S. dollar by 5.9%. In 2018, the renminbi again depreciated against the U.S. dollar and ended down by 4.4% for the year.

Significant revaluation of the renminbi may have a material adverse effect on your investment. For example, to the extent that we need to convert U.S. dollars into renminbi for our operations, appreciation of the renminbi against the U.S. dollar would have an adverse effect on the renminbi amount we would receive from the conversion. Conversely, if we decide to convert our renminbi into U.S. dollars for the purpose of making payments for dividends on our ordinary shares or ADSs or for other business purposes, appreciation of the U.S. dollar against the renminbi would have a negative effect on the U.S. dollar amount available to us. In addition, appreciation or depreciation in the value of the renminbi relative to U.S. dollars would affect our financial results reported in U.S. dollar terms regardless of any underlying change in our business or results of operations.Very limited hedging options are available in China to reduce our exposure to exchange rate fluctuations. To date, we have not entered into any hedging transactions in an effort to reduce our exposure to foreign currency exchange risk. While we may decide to enter into hedging transactions in the future, the availability and effectiveness of these hedges may be limited and we may not be able to adequately hedge our exposure or at all. In addition, our currency exchange losses may be magnified by PRC exchange control regulations that restrict our ability to convert renminbi into foreign currency.

Securities traded on the AIM market of the London Stock Exchange may carry a higher risk than shares traded on other exchanges and may impact the value of your investment.

Our ordinary shares are currently traded on the AIM market of the London Stock Exchange. Investment in equities traded on AIM is perceived by some to carry a higher risk than an investment in

equities quoted on exchanges with more stringent listing requirements, such as the New York Stock Exchange or the Nasdaq. This is because the AIM market imposes less stringent ongoing reporting requirements than those other exchanges. You should be aware that the value of our ordinary shares may be influenced by many factors, some of which may be specific to us and some of which may affect AIM-listed companies generally, including the depth and liquidity of the market, our performance, a large or small volume of trading in our ordinary shares, legislative changes and general economic, political or regulatory conditions, and that the prices may be volatile and subject to extensive fluctuations. Therefore, the market price of our ordinary shares underlying the ADSs may not reflect the underlying value of our company.

The depositary for our ADSs gives us a discretionary proxy to vote our ordinary shares underlying your ADSs if you do not vote at shareholders' meetings, except in limited circumstances, which could adversely affect your interests.

Under the deposit agreement for the ADSs, the depositary gives us a discretionary proxy to vote our ordinary shares underlying your ADSs at shareholders' meetings if you do not vote, unless:

The effect of this discretionary proxy is that you cannot prevent our ordinary shares underlying your ADSs from being voted, absent the situations described above, and it may make it more difficult for shareholders to influence the management of our company. Holders of our ordinary shares are not subject to this discretionary proxy.

Holders of ADSs have fewer rights than shareholders and must act through the depositary to exercise their rights.

Holders of our ADSs do not have the same rights as our shareholders and may only exercise the voting rights with respect to the underlying ordinary shares in accordance with the provisions of the deposit agreement. Under our memorandum and articles of association, an annual general meeting and any extraordinary general meeting at which the passing of a special resolution is to be considered may be called with not less than 21 clear days' notice, and all other extraordinary general meetings may be called with not less than 14 clear days' notice. When a general meeting is convened, you may not receive sufficient notice of a shareholders' meeting to permit you to withdraw the ordinary shares underlying your ADSs to allow you to vote with respect to any specific matter. If we ask for your instructions, we will give the depositary notice of any such meeting and details concerning the matters to be voted upon at least 30 days in advance of the meeting date and the depositary will send a notice to you about the upcoming vote and will arrange to deliver our voting materials to you. The depositary and its agents, however, may not be able to send voting instructions to you or carry out your voting instructions in a timely manner. We will make all reasonable efforts to cause the depositary to extend voting rights to you in a timely manner, but we cannot assure you that you will receive the voting materials in time to ensure that you can instruct the depositary to vote the ordinary shares underlying your ADSs. Furthermore, the depositary will not be liable for any failure to carry out any instructions to vote, for the manner in which any vote is cast or for the effect of any such vote. As a result, you may not be able to exercise your right to vote and you may lack recourse if your ADSs are not voted as you request. In addition, in your capacity as an ADS holder, you will not be able to call a shareholders' meeting.

You may not receive distributions on our ADSs or any value for them if such distribution is illegal or if any required government approval cannot be obtained in order to make such distribution available to you.

Although we do not have any present plan to pay any dividends, the depositary of our ADSs has agreed to pay to you the cash dividends or other distributions it or the custodian receives on ordinary shares or other deposited securities underlying our ADSs, after deducting its fees and expenses and any applicable taxes and governmental charges. You will receive these distributions in proportion to the number of ordinary shares your ADSs represent. However, the depositary is not responsible if it decides that it is unlawful or impractical to make a distribution available to any holders of ADSs. For example, it would be unlawful to make a distribution to a holder of ADSs if it consists of securities whose offering would require registration under the Securities Act but is not so properly registered or distributed under an applicable exemption from registration. The depositary may also determine that it is not reasonably practicable to distribute certain property. In these cases, the depositary may determine not to distribute such property. We have no obligation to register under the U.S. securities laws any offering of ADSs, ordinary shares, rights or other securities received through such distributions. We also have no obligation to take any other action to permit the distribution of ADSs, ordinary shares, rights or anything else to holders of ADSs. This means that you may not receive distributions we make on our ordinary shares or any value for them if it is illegal or impractical for us to make them available to you. These restrictions may cause a material decline in the value of our ADSs.

Your right to participate in any future rights offerings may be limited, which may cause dilution to your holdings.

We may from time to time distribute rights to our shareholders, including rights to acquire our securities. However, we cannot make rights available to you in the United States unless we register the rights and the securities to which the rights relate under the Securities Act or an exemption from the registration requirements is available. Also, under the deposit agreement, the depositary bank will not make rights available to you unless either both the rights and any related securities are registered under the Securities Act, or the distribution of them to ADS holders is exempted from registration under the Securities Act. We are under no obligation to file a registration statement with respect to any such rights or securities or to endeavor to cause such a registration statement to be declared effective. Moreover, we may not be able to establish an exemption from registration under the Securities Act. If the depositary does not distribute the rights, it may, under the deposit agreement, either sell them, if possible, or allow them to lapse. Accordingly, you may be unable to participate in our rights offerings and may experience dilution in your holdings.

If we are classified as a passive foreign investment company, U.S. investors could be subject to adverse U.S. federal income tax consequences.

The rules governing passive foreign investment companies, or PFICs, can have adverse effects for U.S. investors for U.S. federal income tax purposes. The tests for determining PFIC status for a taxable year depend upon the relative values of certain categories of assets and the relative amounts of certain kinds of income. As discussed in "Taxation—Material U.S. Federal Income Tax Considerations," we do not believe that we are currently a PFIC. Notwithstanding the foregoing, the determination of whether we are a PFIC depends on particular facts and circumstances (such as the valuation of our assets, including goodwill and other intangible assets) and may also be affected by the application of the PFIC rules, which are subject to differing interpretations. The fair market value of our assets is expected to depend, in part, upon (1) the market price of our ordinary shares and ADSs and (2) the composition of our income and assets, which will be affected by how, and how quickly, we spend any cash that is raised in any financing transaction. In light of the foregoing, no assurance can be provided that we are not currently a PFIC or that we will not become a PFIC in any future taxable year. Furthermore, if we are treated as a PFIC, then one or more of our subsidiaries may also be treated as PFICs.

If we are or become a PFIC, and, if so, if one or more of our subsidiaries are treated as PFICs, U.S. holders of our ordinary shares and ADSs would be subject to adverse U.S. federal income tax consequences, such as ineligibility for any preferential tax rates on capital gains or on actual or deemed dividends, interest charges on certain taxes treated as deferred, and additional reporting requirements under U.S. federal income tax laws and regulations. Whether U.S. holders of our ordinary shares or ADSs make (or are eligible to make) a timely qualified electing fund, or QEF, election or a mark-to-market election may affect the U.S. federal income tax consequences to U.S. holders with respect to the acquisition, ownership and disposition of our ordinary shares and ADSs and any distributions such U.S. holders may receive. We do not, however, expect to provide the information regarding our income that would be necessary in order for a U.S. holder to make a QEF election if we are classified as a PFIC. Investors should consult their own tax advisors regarding all aspects of the application of the PFIC rules to our ordinary shares and ADSs.

We are a company incorporated under the laws of the Cayman Islands, and substantially all of our assets are located outside the United States. Substantially all of our current operations are conducted in the PRC. In addition, most of our directors and officers are nationals and residents of countries other than the United States. A substantial portion of the assets of these persons are located outside the United States. As a result, it may be difficult for you to effect service of process within the United States upon these persons. It may also be difficult for you to enforce in U.S. courts judgments obtained in U.S. courts based on the civil liability provisions of the U.S. federal securities laws against us and our officers and directors, all of whom are not residents in the United States and whose assets are located outside the United States. In addition, there is uncertainty as to whether the courts of the Cayman Islands or the PRC would recognize or enforce judgments of U.S. courts against us or such persons predicated upon the civil liability provisions of the securities laws of the United States or any state.

Your ADSs are transferable on the books of the depositary. However, the depositary may close its transfer books at any time or from time to time when it deems expedient in connection with the performance of its duties. In addition, the depositary may refuse to deliver, transfer or register transfers of ADSs generally when our books or the books of the depositary are closed, or at any time if we or the depositary deems it advisable to do so because of any requirement of law or of any government or governmental body, or under any provision of the deposit agreement, or for any other reason.

Hutchison China MediTech Limited was incorporated in the Cayman Islands on December 18, 2000 as an exempted company with limited liability under the Companies Law, Cap 22 (Law 3 of 1961, as consolidated and revised) of the Cayman Islands. Our company was founded by Hutchison Whampoa Limited (which in 2015 became a wholly owned subsidiary of CK Hutchison), a Hong Kong based multinational conglomerate with operations in over 50 countries. CK Hutchison is the ultimate parent company of our majority shareholder Hutchison Healthcare Holdings Limited.

Our principal executive offices are located at 48th Floor, Cheung Kong Center, 2 Queen's Road Central, Hong Kong. Our telephone number at that address is +852 2121 8200. The address of our registered office in the Cayman Islands is P.O. Box 309, Ugland House, Grand Cayman, KY1-1104, Cayman Islands. Our agent for service of process in the United States is Law Debenture Corporate Services Inc., located at 400 Madison Avenue, 4th Floor, New York, New York 10017.

The chart below shows our organizational structure, including our principal subsidiaries and joint ventures, as of March 1, 2019.

We launched our Innovation Platform in 2002 with the establishment of our subsidiary Hutchison MediPharma. Our Innovation Platform is focused on developing drugs for the treatment of cancer and immunological diseases. Currently, we have eight drug candidates in active clinical trials around the world. Since 2001, we have also developed a profitable Commercial Platform in China, which includes our non-consolidated joint ventures Shanghai Hutchison Pharmaceuticals and Hutchison Baiyunshan.

We made capital expenditure payments of $4.3 million, $5.0 million and $6.4 million for the years ended December 31, 2016, 2017 and 2018, respectively. Our capital expenditures during these periods were primarily used for the purchases of property, plant and equipment to expand the Hutchison MediPharma research facilities and the new manufacturing facility in Suzhou, China, which produces commercial supplies of fruquintinib and other clinical supplies. Our capital expenditures have been primarily funded by cash flows from operations and proceeds from our initial public and follow-on offering in the United States.

We are subject to the informational requirements of the Exchange Act and are required to file reports and other information with the SEC. The SEC maintains a website at www.sec.gov that contains reports, proxy and information statements, and other information regarding registrants that make electronic filings with the SEC using its EDGAR system. We also make available on our website's investor relations page, free of charge, our annual report and the text of our reports on Form 6-K, including any amendments to these reports, as well as certain other SEC filings, as soon as reasonably practicable after they are electronically filed with or furnished to the SEC. The address for our investor relations page is www.chi-med.com/investors. The information contained on our website is not incorporated by reference in this annual report.

Focusing on both the global innovation and China oncology markets, our Innovation Platform's approximately 420-person strong team of scientists and staff has an established track record of highly productive drug development over the last 18 years. Currently, we have eight clinical drug candidates, five of which are either in or about to start global clinical development. With a fully-integrated innovation operation covering drug discovery, development, manufacturing and regulatory functions, we plan to further establish and leverage this platform to produce and commercialize a stream of novel drug candidates with global potential. Our commitment to having both a global clinical development program and a China oncology pipeline enables us to develop drug candidates which target indications that represent high levels of unmet medical needs. Moreover, our prescription drugs and consumer health division, known as our Commercial Platform, serves a dual purpose as both an ongoing source of cash to fund our research and development activities and providing an extensive prescription drug sales network with deep know-how in marketing and selling drugs within the complex medical system in China.

Our core research and development philosophy is to take a holistic approach to the treatment of cancer and immunological diseases, through multiple modalities and mechanisms, including targeted therapies, immunotherapies and other pathways. Our initial focus has been to design uniquely selective small molecule tyrosine kinase inhibitors deliberately engineered to improve drug efficacy and reduce known off-target toxicities in the treatment of various types of cancer and immunological diseases. We

recognized early on in our research and development that high selectivity is crucial in effectively treating patients in monotherapies as well as in the combination therapies which we believe are needed to significantly improve treatment outcomes. We are designing these highly selective tyrosine kinase inhibitors against various targets with applications across multiple cancer and immunological indications.

Our Innovation Platform achieved an important milestone with the commercial launch in late November 2018 of our self-discovered and developed drug fruquintinib, sold under the brand name Elunate, for the treatment of metastatic colorectal cancer in China. We believe fruquintinib is the first home-grown, China-discovered and developed targeted oncology therapy to have been brought to unconditional approval and commercialization.

Additionally, we believe our drug candidates in global development such as savolitinib (targeting the mesenchymal epithelial transition factor, or c-Met/MET), fruquintinib (targeting vascular endothelial growth factor receptors, or VEGFR, 1, 2 and 3), surufatinib (previously named sulfatinib; targeting VEGFR, fibroblast growth factor receptor 1, or FGFR 1, and the colony stimulating factor-1 receptor), HMPL-523 (targeting the spleen tyrosine kinase, or Syk) and HMPL-689 (targeting phosphoinositide 3'-kinase delta, or PI3Kd) are uniquely selective and/or differentiated and have the potential to be global first-in-class and/or best-in-class oncology therapies. Our success in research and development has led to partnerships with leading global pharmaceutical companies, including AstraZeneca and Eli Lilly.

Driven by our strong expertise in molecular-targeted drugs and commitment to combination therapies of our tyrosine kinase inhibitors with various immunotherapies, we recently entered into multiple global and China-only collaboration agreements with Innovent Biologics (Suzhou) Co. Ltd., or Innovent, Shanghai Junshi Biosciences Co. Ltd., or Junshi, Genor Biopharma Co. Ltd., or Genor, and Taizhou Hanzhong Pharmaceuticals, Inc., or Hanzhong, to evaluate the safety, tolerability and efficacy of fruquintinib and surufatinib in combination with various programmed cell death protein 1, or PD-1, inhibitors, which are important additions to our ongoing studies combining savolitinib with AstraZeneca's programmed death-ligand 1, or PD-L1, inhibitor Imfinzi (durvalumab).

Our Innovation Platform comprises two drug development pipelines, namely our global clinical drug development platform and our China oncology platform. The following table summarizes the status of our global clinical drug portfolio's development as of the date of this annual report:

Notes: Dose finding/safety run-in = Phase I study; Proof-of-concept = Phase Ib/II study; Registration = Phase II/III registration study; c-MET = mesenchymal epithelial transition receptor; VEGFR = vascular endothelial growth factor receptor; FGFR1 = fibroblast growth factor receptor 1; CSF-1R = colony stimulating factor-1 receptor; Syk = spleen tyrosine kinase; PI3Kd = Phosphatidylinositol-3-Kinase delta; PD-L1 = programmed death-ligand 1; PD-1 = programmed cell death protein 1; NSCLC = non-small cell lung cancer; RCC = renal cell carcinoma; NET = neuroendocrine tumors; NHL = non-Hodgkin's lymphoma; EGFR = epidermal growth factor receptor; EGFRm = epidermal growth factor receptor mutation; TKI = tyrosine kinase inhibitor; ref. or refractory = resistant to prior treatment; MET+ = MET-amplification; intol. = intolerant to prior treatment; UK = United Kingdom; US = United States; Global = >2 countries; 1L = first line; 2L = second line; 3L = third line; * = further patient enrollment directed to savolitinib monotherapy arm due to the high efficacy observed; and ** = in planning.

As shown in the table above, our global clinical drug portfolio currently includes our five lead drug candidates, namely savolitinib, fruquintinib, surufatinib, HMPL-523 and HMPL-689. Over the next several years, we intend to accelerate development of our global clinical drug portfolio through existing partnerships such as that with AstraZeneca, as well as increasingly through our own clinical and regulatory operations in the United States and Europe. We are currently focusing on the following global clinical programs:

We also plan to further develop our four un-partnered drug candidates (fruquintinib (ex-China), surufatinib, HMPL-523 and HMPL-689) in various proof-of-concept studies and explore the possibility of conducting combination studies of HMPL-523 and HMPL-689 with other tyrosine kinase inhibitors. Furthermore, we expect our Innovation Platform discovery activities to produce other new emerging drug compounds and aim to move promising candidates into our global clinical drug portfolio each year.

In line with our strategy to expand clinical activities globally, we commenced operation of our U.S. subsidiary, Hutchison MediPharma (US) Inc., at our new office in New Jersey in early 2018. While we have been involved in clinical and non-clinical development in North America and Europe for over a decade, the activities conducted by this new U.S. office will support our growth strategy outside of China and significantly broaden and scale our non-Asian clinical development and international operations. We also intend to significantly expand our U.S. clinical team to support our increasing clinical activities in the United States and Europe.

The following table summarizes the status of our China clinical programs as of the date of this annual report:

Notes: Dose finding/safety run-in = Phase I study; Proof-of-concept = Phase Ib/II study; Registration = Phase II/III registration study; c-MET/MET = mesenchymal epithelial transition receptor; VEGFR = vascular endothelial growth factor receptor; FGFR = fibroblast growth factor receptor; CSF-1R = colony stimulating factor-1 receptor; Syk = spleen tyrosine kinase; PI3Kd = Phosphatidylinositol-3-Kinase delta; EGFR = epidermal growth factor receptor; EGFR WT = EGFR wild-type; acute myeloid lymph. = acute myeloid lymphoma; ITP = immune thrombocytopenia purpura; PD-1 = programmed cell death protein 1; NSCLC = non-small cell lung cancer; NET = neuroendocrine tumors; acute myeloid lymph. = acute myeloid lymphoma; ITP = immune thrombocytopenia purpura; NHL = non-Hodgkin's lymphoma; EGFRm = epidermal growth factor receptor mutation; ref. or refractory = resistant to prior treatment; MET+ = MET-amplification; 1L = first line; 2L = second line; 3L = third line; ³3L= third line or above; * = in planning; and ** = discontinued.

China's oncology patients represent approximately 24% of the global oncology patient population. In our view, the China oncology market represents a substantial and fast-growing market opportunity expected to be supported by China's increasing emphasis on innovation combined with its rapidly improving regulatory environment for approving novel treatments. We believe our well-established presence in China, combined with our ability to deliver global-quality innovative drugs and utilize the distribution and sales infrastructure and industry experience of our Commercial Platform, positions us well to address the major unmet medical needs in the China oncology market. As indicated in the table above, our plans for our drug candidates in China include:

In addition to developing our other drug candidates in late-stage clinical studies, we have made further progress in our various early or proof-of-concept clinical trials, including the initiation of a Phase Ib/II trial in China in glioblastoma, a primary brain cancer that harbors high levels of EGFR gene amplification, with epitinib, our unique EGFR inhibitor that has demonstrated the ability to penetrate the blood-brain barrier. We aim to establish proof-of-concept for epitinib, theliatinib and fibroblast growth factor receptors and progress two to three more drug candidates into early-stage development by 2021.

Fruquintinib is our most valuable asset in China, and as a result we place high importance on gaining freedom to operate in the life cycle development of fruquintinib. We believe that fruquintinib is a best-in-class VEGFR inhibitor and could be considered for development in China in many solid tumor indications in which VEGFR inhibitors have been approved globally. To this end, we recently amended our collaboration agreement with Eli Lilly with respect to fruquintinib, which gives us, among others, all planning, execution and decision making responsibilities for life cycle indication development of fruquintinib in China. For this right, we will pay 100% of the costs associated with fruquintinib life cycle indication development in China (versus 30% under the original agreement), and in return, Eli Lilly will pay us a total of up to $60.0 million in milestone payments, subject to the approval of fruquintinib in China

in up to three life cycle indications (versus $12.5 million per indication under the original agreement), and an increased tiered royalty of 15-29% (versus 15-20% under the original agreement) upon the commercial launch of fruquintinib in a new life cycle indication. Eli Lilly has also given us the liberty to collaborate with third-parties to explore combination therapies of fruquintinib with various immunotherapy agents. In addition, Eli Lilly has given us the promotion and distribution rights for fruquintinib in provinces that represent 30% (or 40% if certain additional criteria are met) of sales of fruquintinib in China upon the achievement of a non-fruquintinib related Eli Lilly commercial action.

With this important amendment agreement, we now have full control to move forward with development in multiple life cycle indications as well as combination studies of fruquintinib with third-party checkpoint inhibitors, while enjoying a greater share of any economic benefits of fruquintinib.

Leveraging the resources from both our global clinical drug development platform and our China oncology platform, we have spent the past five years and will continue to design novel oncology treatments which reflect our core research and development philosophy in attacking cancer through multiple modalities and mechanisms. These include furthering our pre-clinical program areas against targets such as extracellular signal-regulated kinases.

In addition to our Innovation Platform, we have established a profitable Commercial Platform in China which manufactures, markets and distributes prescription drugs and consumer health products. This Commercial Platform has grown to a significant scale, with our strategically important Prescription Drugs business joint ventures, Shanghai Hutchison Pharmaceuticals and Hutchison Sinopharm, operating a network of approximately 2,500 medical sales representatives covering over 24,900 hospitals in over 320 cities and towns in China as of December 31, 2018. Leveraging this extensive network, Shanghai Hutchison Pharmaceuticals and Hutchison Sinopharm own or have distribution rights to a number of important prescription drugs in China, including:

Cash flow from our Commercial Platform has provided an important source of funding for our Innovation Platform since our inception. Additionally, our Commercial Platform has provided us the infrastructure and know-how in operating and marketing pharmaceutical products in the complex and evolving healthcare system in China.

Over the next several years, we will combine the marketing and sales experience and hospital access gained from our Commercial Platform's operations with our growing dedicated oncology-focused sales team to support the launch of products from our Innovation Platform if and when they are approved for use in China. Concurrent with this team expansion, we also plan to increase our manufacturing capacity with a fully integrated active pharmaceutical ingredients or formulation manufacturing facility that is capable of supporting the manufacturing of our current and future commercial-stage oncology drugs.

The following is a summary of the clinical pipeline for our drug candidates, many of which are being investigated against multiple indications.

Savolitinib is a potent and selective inhibitor of c-MET, an enzyme which has been shown to function abnormally in many types of solid tumors. We designed savolitinib to address human metabolite-related renal toxicity, the primary issue that halted development of several other selective c-MET inhibitors. In clinical studies to date, savolitinib has shown promising signs of clinical efficacy in patients with c-MET gene alterations in non-small cell lung cancer, papillary renal cell carcinoma, colorectal cancer, gastric cancer and prostate cancer with an acceptable safety profile. We are currently testing savolitinib in partnership with AstraZeneca, both as a monotherapy and in combinations. For more information regarding our partnership with AstraZeneca, see "—Overview of Our Collaborations."

C-Met, which is also known as hepatocyte growth factor receptor, or HGFR, is a signaling pathway that has specific roles in normal mammalian growth and development. However, the HGFR pathway has also been shown to function abnormally in a range of different cancers, primarily through c-Met gene amplification, c-Met over-expression and gene mutations. The aberrant activation of c-Met has been demonstrated to be highly correlated in many cancer indications, including kidney, lung, gastric, colorectal, esophageal and brain cancer, and plays a major role in cancer pathogenesis (i.e., the development of the cancer), including tumor growth, survival, invasions, metastasis, the suppression of cell death as well as tumor angiogenesis. As a result, c-Met has become a widely investigated anti-cancer target in recent years with several selective c-Met inhibitors under development by different companies, although to date none have received regulatory approval.

C-Met also plays a role in drug resistance in many tumor types. For instance, c-Met gene amplification has been found in non-small cell lung cancer and colorectal cancer following anti-EGFR treatment, leading to drug resistance. Furthermore, c-Met over-expression has been found to emerge in renal cell carcinoma following anti-VEGFR treatment.

Selective c-Met compounds previously discovered by multinational pharmaceutical companies had positive pre-clinical data that supported their high c-Met selectivity and pharmacokinetic and toxicity profiles, but did not progress very far due to kidney toxicity. The issue appeared to be that certain metabolites of earlier compounds had dramatically reduced solubility and appeared to crystalize in the kidney, resulting in obstructive toxicity. With this understanding, we designed our compound, savolitinib (also known as AZD6094 and HMPL-504, formerly known as volitinib), differently while perserving high c-Met selective properties. Savolitinib has not shown any renal toxicity to date and does not appear to carry the same metabolites problems as the earlier selective c-Met compounds.

In pre-clinical studies, savolitinib demonstrated strong in vitro activity against c-Met, affecting its downstream signaling targets and thus blocking the related cellular functions effectively, including proliferation, migration, invasion, scattering and the secretion of vascular endothelial growth factor, or VEGF, that plays a pivotal role in tumor angiogenesis.

One of our key areas of focus in our pre-clinical studies is to achieve superior selectivity on a number of kinases. A commonly used quantitative measure of selectivity is through comparing enzyme IC₅₀, which represents the concentration of a drug that is required for 50% inhibition of the target kinase in vitro and the plasma concentration required for obtaining 50% of a maximum effect in vivo. High selectivity is achieved with a very low IC₅₀ for the target cells, and a very high IC₅₀ for the healthy cells (approximately 100 times higher than for the target cells). IC₅₀ is measured in nM (nano-mole, a microscopic unit of measurement for the number of small molecules required to deliver the desired inhibitory effect).

In the c-Met enzymatic assay, savolitinib showed potent activity with IC₅₀ of 5 nM. In a kinase selectivity screening with 274 kinases, savolitinib had potent activity against the c-Met Y1268T mutant (comparable to the wild-type), weaker activity against other c-Met mutants and almost no activity against all other kinases. Savolitinib was found to be approximately 1,000 times more potent to c-Met than the next non-c-Met kinase. Similarly, in cell-based assays measuring activity against c-Met phosphorylation, savolitinib demonstrated potent activity in both ligand-independent (gene amplified) and ligand-dependent (over-expression) cells with IC₅₀s at low nanomolar levels. In target related tumor cell function assays, savolitinib showed high potency with IC₅₀ of less than 10 nM. Furthermore, savolitinib demonstrated cytotoxicity only on tumor cells that were c-Met gene amplified or c-Met over-expressed. In other cells, inhibition measurements demonstrated that IC₅₀ amounts were over 30,000 nM, which is thousands of times higher than the IC₅₀ on c-Met tumor cells.

The data above suggest that (i) savolitinib has potent activity against tumor cell lines with c-Met gene amplification in the absence of HGF, indicating that there is HGF-independent c-Met activation in these cells; (ii) savolitinib has potent activity in tumor cell lines with c-Met over-expression, but only in the presence of HGF, indicating HGF-dependent c-Met activation; and (iii) savolitinib has no activity in tumor cell lines with low c-Met over-expression/gene amplification, suggesting that savolitinib has strong kinase selectivity.

We tested the in vivo activity of savolitinib on different human tumor xenograft models, a technique where human tumor cells are transplanted into various animal models. For example, in a gastric cancer c-Met gene amplification model, savolitinib was found to inhibit tumor growth potently with good dose response at a 2.5 mg/kg (kg weight of the animal), suggesting potent anti-tumor activity. Moreover, the anti-tumor activity appeared to correlate well with the inhibition of c-Met phosphorylation and activation. Similarly in a non-small lung cancer c-Met gene amplified xenograft model, savolitinib also showed significant anti-tumor efficacy.

Savolitinib showed strong synergistic effects with other anti-cancer therapies in certain xenograft models, including a model which has high c-Met gene amplification and originally derived from a non-small cell cancer cell line that is highly sensitive to EGFR inhibitors. The combination of savolitinib with the EGFR inhibitor Iressa demonstrated strong synergistic effect, suggesting targeting multiple pathways simultaneously may provide a viable approach for the treatment of tumors with activation of multiple pathways. These data suggest that there is a strong rationale for patients whose disease progressed after EGFR tyrosine kinase inhibitor treatment with c-Met gene amplification to use a combination therapy including savolitinib. We also studied in several subcutaneous xenograft models the anti-tumor

effect of savolitinib in combination with Taxotere, a commonly used chemotherapy in gastric cancer treatment. In our studies, the combination produced additive or synergistic anti-tumor effect, and no significant additive or synergistic toxicity between the two drugs was found.

We conducted the first-in-human Phase I study of savolitinib in patients with advanced solid tumors starting in 2012 in Australia. The study was conducted to determine the maximum tolerated dose or recommended Phase II dose, dose-limiting toxicities, pharmacokinetics profile and preliminary anti-tumor activity of savolitinib. The first patient was enrolled in February 2012, and enrollment of a total of 47 patients was completed in June 2015.

The data of 35 patients in the dose escalation stage of this Phase I study were presented at the 2014 annual meeting of the American Society of Clinical Oncology. Grade ³3 adverse events with greater than 5% incidence, based on the National Cancer Institute's Common Terminology Criteria for Adverse Event, or CTC, which is a set of criteria for the standardized classification of adverse effects of drugs used in cancer therapy (with 1 and 2 being relatively mild and higher numbers (up to 5) being more severe), associated with savolitinib treatment were fatigue (9%) and shortness of breath, or dyspnea (6%). Four patients reported five incidences of dose-limiting toxicities, including one CTC grade 3 incidence of elevated alanine transaminase (600 mg once daily), one incidence of CTC grade 3 fatigue (800 mg once daily), two incidences of CTC grade 3 fatigue and one incidence of CTC grade 3 headache (1,000 mg once daily). Notably, no obstructive kidney toxicity was seen in this study.

A pharmacokinetics analysis showed savolitinib was rapidly absorbed with a half-life of approximately five hours, and drug exposure increased in a dose-proportional manner and with no obvious accumulation. This study showed that savolitinib was well tolerated at doses of up to 800 mg once daily.

In 2013, we initiated a Phase I dose escalation study of savolitinib in China. A total of 41 patients were enrolled across the dose escalation and dose expansion stages of the study. We concluded that the data from this China Phase I study were consistent with the Australian Phase I study discussed above and that savolitinib was well tolerated at doses up to 800 mg once daily or 600 mg twice daily. The complete Phase I study results, combining data from Australia and China, were presented at the American Society of Clinical Oncology's annual meeting in 2015.

As discussed below, we have tested, and are currently testing, savolitinib in partnership with AstraZeneca in multiple indications, both as a monotherapy and in combination with other targeted therapies.

C-Met is an increasingly important target in non-small cell lung cancer. The table below shows a summary of the clinical studies that we have recently completed and underway for savolitinib in non-small cell lung cancer patients.

In 2015, AstraZeneca received FDA approval for Tagrisso, its drug for the treatment of T790M+ EGFRm+, tyrosine kinase inhibitor-resistant non-small cell lung cancer. In 2018, Tagrisso's label was expanded to include previously untreated patients with EGFRm+ non-small cell lung cancer. Tagrisso sales in 2018, only the third year since its launch, were $1.9 billion. Tagrisso has been established as a new standard of care in the treatment of EGFRm+ non-small cell lung cancer and has now been approved in over 80 countries. Understanding the mechanism of acquired resistance following Tagrisso treatment is a key clinical question to inform the next treatment choice. A portion of EGFRm+ tyrosine kinase inhibitor-resistant patients and a portion of T790M+ EGFRm+ tyrosine kinase inhibitor-resistant patients progress because of c-Met gene amplification.

At the European Society of Medical Oncology Congress in 2018, AstraZeneca presented the first results on the acquired resistance spectrum detected in patient plasma after progression in the first-line (FLAURA) and second-line T790M (AURA3) Phase III studies. C-Met amplification was among the most frequent mechanisms of acquired resistance to Tagrisso, with 15% of patients in the FLAURA study and 19% of patients in the AURA3 study exhibiting c-Met amplification after treatment with Tagrisso.

As discussed in more detail below, we and AstraZeneca are studying savolitinib in combination with Tagrisso as a treatment choice for patients who have developed a resistance to tyrosine kinase inhibitors (primarily Tagrisso). The acceptance and uptake of Tagrisso indicates that the market potential for savolitinib in Tagrisso resistant, non-small cell lung cancer could be material.

The primary objective of the TATTON study (Part A) Phase I study was to establish a safe and effective combination dose. All patients were screened for their T790M status (+/–) as well as some for their c-Met gene amplification status, if sufficient tissue samples were available, although patients of all tumor types were admitted to the trial regardless of status. A total of 12 patients were dosed with either 600 mg or 800 mg of savolitinib in combination with 80 mg of Tagrisso once daily. It was found that both 600 mg and 800 mg once daily could be combined with 80 mg of Tagrisso once daily with a safety profile consistent with single agent use. Furthermore, of the 11 evaluable patients in the study, six confirmed partial responses were observed. This resulted in an objective response rate of 55% and contributed to a disease control rate of 100%. None of the adverse effects in the 600 mg dose were CTC grade ³3, and only two in the 800 mg dose were CTC grade ³3. These were nausea (8%) and decreased white blood cell count (8%). The results were presented in 2015 at the American Society of Clinical Oncology Annual Meeting.

This novel combination of two well-tolerated therapies, albeit a small sample size, delivered significant objective response rate levels. As a result, we expanded the TATTON Phase Ib study to demonstrate broader proof-of-concept.

In 2016, we initiated a global Phase Ib/II expansion study in second-line non-small cell lung cancer, called the TATTON study (Part B), aiming to recruit sufficient c-Met gene amplified patients who had progressed after prior treatment with first-generation EGFR inhibitors Iressa or Tarceva to support a decision on global Phase II/III registration strategy. In this first-generation EGFR tyrosine kinase inhibitor refractory non-small cell lung cancer population, we estimate that c-Met gene amplification occurs in 15-20% of patients. Preliminary data from TATTON (Part B), in 34 evaluable patients, were presented at the 2017 World Conference on Lung Cancer and showed confirmed partial responses in 14/23 (61% objective response rate) of T790M mutation negative patients, as well as confirmed partial responses in 6/11 (55% objective response rate) of T790M mutation positive patients. These data are consistent with the TATTON study (Part A).

Figure 4: Preliminary data from TATTON study (Part B) were compelling and consistent with the TATTON study (Part A)

Notes: n=number of patients; MET+ = MET-amplification; T790M+ = T790M mutation positive; T790M– = T790M mutation negative; NR = not reached.

*Centrally confirmed MET-amplification (fluorescence in-situ hybridization, MET gene copy ³5 or MET/CEP7 ratio ³2)

The TATTON study (Part B) also enrolled third-line non-small cell lung cancer patients that had progressed after treatment with Tagrisso as a result of c-Met gene amplification acquired resistance. Data presented in June 2017 at the American Society of Clinical Oncology, by Harvard Medical School and Massachusetts General Hospital Cancer Center showed that about 30% (7/23 patients) of Tagrisso-resistant third-line non-small cell lung cancer patients harbor c-Met gene amplification. This third-line patient population is generally heavily pre-treated and highly complex from a molecular analysis standpoint, with the study showing that more than half of the c-Met gene amplification patients also harbored additional genetic alterations, including EGFR gene amplification and K-Ras mutations.

The TATTON study (Part B) also included preliminary data in 30 evaluable patients previously treated with third-generation T790M-directed EGFR inhibitors, primarily Tagrisso, which was presented at the 2017 World Conference on Lung Cancer. As figure 5 below illustrates, confirmed partial responses were observed in 10/30 (33% objective response rate) of these patients, and while this is lower than the 55-61% objective response rate in the study's second-line patients, it was as expected given the additional driver genes at work post-Tagrisso monotherapy failure. We believe that the savolitinib plus Tagrisso combination is an important treatment option for these late-stage patients who have no remaining targeted treatment alternatives.

Figure 5: The savolitinib/Tagrisso combination could be an important treatment option for the third-line or above non-small cell lung cancer patients who have no remaining targeted treatment alternatives

Notes: PR= partial response; SD= stable disease; PD = progressive disease; NE = not evaluable; DoR = duration of response; MET+ = MET-amplification; T790M+; 3^rd Gen. = third generation; EGFR-TKI = EGFR tyrosine kinases inhibitor; n = number of patients; NR = not reached; MET/CEP7 ratio = ratio of the MET copy number to the number of chromosome 7 centromeres.

Additional data from the TATTON study (Part B) have been accepted for presentation at the American Association for Cancer Research Annual Meeting in 2019. We and AstraZeneca decided to progress into the next stage of development in this indication, with plans outlined below.

In late 2017, the TATTON study (Part B expansion) and the TATTON study (Part D) were initiated to study Tagrisso combined with a lower savolitinib dose (300 mg once daily) in the context of maximizing long-term tolerability of the combination for patients who could be in poor condition and/or on the combination for long periods of time. Enrollment of the TATTON study (Part B expansion) and the TATTON study (Part D) has now been completed and patients continue to be treated and clinical data continues to mature. Finalization of the registration study dose of Tagrisso and savolitinib is close to complete. We expect to present interim data from this study at the 2019 American Association for Cancer Research conference.

Based on the encouraging results of the multiple TATTON studies, we and AstraZeneca have initiated a global Phase II study of savolitinib in combination with Tagrisso in EGFRm+ non-small cell lung cancer patients with c-Met gene amplification who have progressed following Tagrisso. The SAVANNAH study is a single-arm study, in North and South America, Europe and Asia. The primary data completion is anticipated in 2021.

In 2003, AstraZeneca received FDA approval for Iressa, a drug for the treatment of EGFRm+ tyrosine kinase inhibitor-resistant non-small cell lung cancer. Iressa is used in the treatment of patients with advanced EGFRm+ non-small cell lung cancer, and has been approved in over 64 countries. A portion of EGFRm+ tyrosine kinase inhibitor-resistant patients progress because of c-Met gene amplification. As discussed in more detail below, we and AstraZeneca are studying savolitinib in combination with Iressa as a second- and third-line treatment choice for patients who have developed a resistance to Iressa. We will continue to evaluate this opportunity during 2019 in the context of the evolving treatment paradigm for EGFRm+ non-small cell lung cancer.

At the 2017 World Conference on Lung Cancer, we presented Phase Ib proof-of-concept data assessing savolitinib (600 mg once daily) in combination with Iressa in patients in China with EGFRm+ advanced non-small cell lung cancer with centrally confirmed c-Met gene amplification who had progressed following first-generation EGFR inhibitor therapy. Preliminary results showed confirmed partial responses in 12 of 23 T790M mutation negative patients (52% objective response rate), as well as confirmed partial responses in two of 23 T790M mutation positive patients (9% objective response rate). The 52% objective response rate in T790M mutation negative patients was as expected and similar to that recorded in the TATTON study (Part B) for this target patient population, indicating that for these patients Iressa might be the most cost-efficient combination partner for savolitinib. The low 9% objective response rate in T790M mutation positive patients was also as expected, as Iressa does not effectively address T790M mutants. In terms of safety, the savolitinib plus Iressa combination dose was safe and well tolerated. We and AstraZeneca will continue to evaluate this opportunity during 2019.

It is estimated that 2-3% of newly diagnosed non-small cell lung cancer patients have a specific genetic mutation, known as MET Exon 14 deletion, where exon 14 of the MET gene is either deleted or not

functional, resulting in c-Met over expression, which is believed to play a role in cancer development as discussed above in the mechanism of action section. This equates to approximately 10,000 new patients per year in China.

A Phase II study of savolitinib as a monotherapy is currently enrolling in China for non-small cell lung cancer patients with MET Exon 14 deletion who have progressed following prior systemic therapy, or are unable to receive systemic therapy. We expect to present primary data from this study in 2020. If results are sufficiently positive, this has the potential to be savolitinib's first NDA.

The table below shows a summary of the clinical studies that we have recently completed or underway for savolitinib in kidney cancer patients.

Papillary renal cell carcinoma is the most common of the non-clear cell renal cell carcinomas representing about 14% of kidney cancer. Approximately 403,300 new cases of kidney cancer were diagnosed globally in 2018, equating to about 56,500 cases of papillary renal cell carcinoma, with approximately half harboring c-Met driven disease. No targeted therapies have been approved specifically for papillary renal cell carcinoma, although modest efficacy in non-clear cell renal cell carcinoma has been reported in sub-group analyses of broader renal cell carcinoma studies of VEGFR (e.g., Sutent) and mammalian target of rapamycin (e.g., Afinitor) tyrosine kinase inhibitors, with objective response rates of <10% and median progression-free survival in first-line setting of four to six months and second-line setting of only one to three months (ESPN study, Tannir N. M. et al.).

During an Australian Phase I study, our investigators noted positive outcomes among papillary renal cell carcinoma patients with a strong correlation to c-Met gene amplification status. Out of a total of eight papillary renal cell carcinoma patients in our Australia Phase I study who were treated with various doses of savolitinib, three achieved confirmed partial response (tumor measurement reduction of greater than 30%). A further three of these eight papillary renal cell carcinoma patients achieved stable disease, which means patients without partial response but with a tumor measurement increase of less than 20%. This aggregate objective response rate (the percentage of patients in the study who show either partial response or complete response) of 38% was very encouraging for papillary renal cell carcinoma, which has no effective approved treatments. These responses were also durable as demonstrated by a patient who has

been on the therapy for over 30 months and had tumor measurement reduction of greater than 85%. Importantly, the level of tumor response among these papillary renal cell carcinoma patients correlated closely with the level of c-Met gene amplification. The patients with consistent c-Met gene amplification across the whole tumor responded most to savolitinib, and with those patients with the highest level of c-Met gene amplification responding most to the treatment.

Recent data have emerged to show that papillary renal cell carcinoma responds to immunotherapy such as inhibitors of an immune checkpoint known as programmed cell death 1, or PD-1, used by cancer cells to avoid being attacked by the immune system. Preliminary data from the KEYNOTE-427 study (Cohort B) as presented by Merck & Co at the American Society of Clinical Oncology's 2019 Genitourinary Cancers Symposium showed objective response in treatment naïve papillary renal cell carcinoma patients treated with the PD-1 inhibitor Keytruda was 25%. In the broader kidney cancer setting, combinations of PD-1 or PD-L1 with targeted therapies that demonstrated single agent effect have demonstrated additive benefits. Early academic research suggests possible rationale for the synergistic effect of the PD-1/PD-L1 and MET combination could center around c-Met/HGF mobilization of neutrophils with immunosuppressive properties in T-cell inflamed tissues (Glodde et al., 2017, Immunity 47, 789-802).

In early 2017, we presented the results of our global Phase II study in papillary renal cell carcinoma at the American Society of Clinical Oncology's Genitourinary Cancers Symposium and subsequently published these results in the Journal of Clinical Oncology. This Phase II study, conducted in the United States, Canada and Europe, was the largest and most comprehensive clinical study in papillary renal cell carcinoma ever conducted. Of 109 patients treated with savolitinib, papillary renal cell carcinoma was c-Met driven in 44 patients (40%), c-Met independent in 46 patients (42%) and Met status unknown in 19 patients (17%). The objective response rate based on confirmed partial responses in all patients was 7% (8/109). c-Met driven papillary renal cell carcinoma was strongly associated with encouragingly durable response to savolitinib with an objective response rate in the c-Met driven group of 18% (8/44) as compared to 0% (0/46) in the c-Met independent group (p=0.002). P-value is a measure of the probability of obtaining the observed sample results, with a lower value indicating a higher degree of statistical confidence in these studies. Median progression-free survival for patients with c-Met driven and c-Met independent papillary renal cell carcinoma patients was 6.2 months (95% confidence interval: 4.1-7.0) and 1.4 months (95% confidence interval: 1.4-2.7), respectively (hazard ratio=0.33; 95% confidence interval: 0.20-0.52; p<0.0001). A 95% confidence interval means that there is a 95% chance that the results will be within the stated range. Hazard ratio is the probability of an event (such as disease progression or death) occurring in the treatment arm divided by the probability of the event occurring in the control arm of a study, with a ratio of less than one indicating a lower probability of an event occurring for patients in the treatment arm. Savolitinib was well tolerated, with no reported treatment related CTC grade ³3 adverse events with greater than 5% incidence. Total aggregate savolitinib treatment-related CTC grade ³3 adverse events occurred in just 19% of patients.

Figure 7: Phase II study of savolitinib monotherapy in papillary renal cell carcinoma in the United States, Canada and Europe. This study clearly demonstrated c-Met driven patients had better progression-free survival compared to c-Met independent patients.

Notes: n = number; mo. = months; 95% CI = 95% confidence interval; HR = hazard ratio.

Based on the Phase II results we presented in early 2017, we initiated the SAVOIR study in June 2017. The SAVOIR study was designed to be a global Phase III, open-label, randomized, controlled trial evaluating the efficacy and safety of savolitinib (600 mg once daily) compared with sunitinib in patients with c-Met driven, unresectable, locally advanced or metastatic papillary renal cell carcinoma. C-Met status was confirmed by the novel targeted next-generation sequencing assay developed for savolitinib. Patients were randomized in a 1:1 ratio to receive either treatment with savolitinib, or treatment with sunitinib. The primary endpoint for efficacy in the SAVOIR study was median progression-free survival, with secondary endpoints of overall survival, objective response rate, duration of response, best percentage change in tumor size, disease control rate, and safety and tolerability. Furthermore, to further understand the role of c-Met driven disease in papillary renal cell carcinoma, we conducted a global molecular epidemiology study, which screened, using our companion diagnostic, archived tissue samples from papillary renal cell carcinoma patients to identify c-Met driven disease. Historical medical records from

these patients were then used to determine if c-Met driven disease is predictive of worse outcome, in terms of progression-free survival and overall survival, in papillary renal cell carcinoma patients.

Based on the molecular epidemiology study, the Phase II study and the first section of SAVOIR enrollment, we concluded that savolitinib would provide significant benefit only in second-line patients who are resistant to prior Sutent therapy. As a result, in late 2018 Chi-Med, AstraZeneca and our investigators suspended enrollment of savolitinib monotherapy in c-Met-positive papillary renal cell carcinoma patients, including savolitinib enrollment for the SAVOIR Phase III study and the PAPMET study (NCT02761057, discussed below), in order to reassess the strategy for papillary renal cell carcinoma in favor of potential combinations of savolitinib and immunotherapy as discussed below.

A Phase II study, sponsored by the U.S. National Cancer Institute, and named the PAPMET study, to assess the efficacy of multiple tyrosine kinase inhibitors in metastatic papillary renal cell carcinoma patients, irrespective of c-Met status, including VEGFR inhibitors Sutent and Cabometyx (cabozantinib), and c-Met inhibitors Xalkori (crizotinib) and savolitinib began enrolling patients in 2016. Following the interim analysis discussed above, further investigation of c-Met inhibitors was suspended.

Immunotherapy combinations are rapidly changing the treatment landscape in kidney cancer. Immune checkpoints such as PD-L1 are sometimes used by cancer cells to avoid being attacked by the immune system. As such, drugs that target these checkpoints are being developed or marketed as cancer treatments. Imfinzi (durvalumab) is an anti-PD-L1 antibody owned by AstraZeneca. Anti-PD-L1 antibodies have been associated with clinical benefits in metastatic renal cell carcinoma, and MET dysregulation has been considered to play an important role in papillary renal cell carcinoma pathogenesis and is a mechanism of resistance against kinase inhibitors in clear cell renal cell carcinoma. Moreover, early academic research suggests potential synergies in inhibiting both MET and PD-L1.

A Phase Ib dose escalation study in the United Kingdom and Spain sponsored and led by the Barts Cancer Institute of Queen Mary University of London was conducted to determine the recommended Phase II dose of savolitinib and Imfinzi when given in combination. Six evaluable patients were enrolled, and none reported dose-limiting toxicities. Adverse events were in line with the established safety profiles of each drug as monotherapies. In 2016, 600 mg once daily of savolitinib and 1,500 mg once every four weeks of Imfinzi was selected as the recommended Phase II dose for the expansion phase of the CALYPSO study, which is discussed in more detail below.

As detailed above, the CALYPSO study completed a Phase Ib dose finding study to assess safety/tolerability of savolitinib and Imfinzi combination therapy in several c-Met driven kidney cancer patient populations. In 2017, the study moved on to the Phase II expansion stage in papillary renal cell carcinoma and clear cell renal cell carcinoma patients in the United Kingdom and Spain to further explore efficacy.

Interim results of the papillary renal cell carcinoma cohort of the CALYPSO Phase II study were presented at the 2019 American Society of Clinical Oncology's Genitourinary Cancers Symposium showing encouraging efficacy across all patients, both c-Met-positive and -negative. The interim CALYPSO data reported an objective response rate of 27% (11/41), while median progression-free survival was 5.3 months

(95% confidence interval: 1.5-12.0 months). Median overall survival was immature/not reached. For the study's 28 previously untreated patients, the objective response rate was 32% (9/28). There were 13 treatment related CTC grade ³3 adverse events that occurred in more than three patients, with edema (10%), nausea (5%) and transaminitis (5%) being most frequent. The investigators concluded that the Imfinzi-savolitinib combination is associated with durable responses in papillary renal cell carcinoma and that both progression-free survival and overall survival data were immature but encouraging. This compares favorably to the results of the Phase II study of savolitinib as a monotherapy, which reported a 7% objective response rate in all papillary renal cell carcinoma patients (18% ORR in MET-positive; and 0% in MET-negative).

Data on the clear cell renal cell carcinoma cohort are expected to be submitted for presentation in late 2019 or early 2020.

We have multiple Phase II studies in Asia to test savolitinib in c-Met-driven gastric cancer patients. The table below shows a summary of the clinical studies that we have recently completed or underway for savolitinib in gastric cancer patients.

Phase II gastric cancer studies have been completed in China and in South Korea. The South Korean study is known as the VIKTORY study and is an umbrella study run and sponsored by the Samsung Medical Center in South Korea. A total of over 1,000 gastric cancer patients had been screened in these studies and those patients with confirmed c-Met-driven disease were treated.

Preliminary results of the China study were presented at the 2017 Chinese Society of Clinical Oncology for the efficacy evaluable c-Met gene amplified patients. Based on confirmed and unconfirmed partial responses, the objective response rate was 43% (3/7) and disease control rate was 86% (6/7), with objective response rate of 14% (3/22) and disease control rate of 41% (9/22) among the overall efficacy evaluable aberrant c-Met set. As of data cut-off, the longest duration of treatment was in excess of two years. Savolitinib monotherapy was determined to be safe and well tolerated in patients with advanced gastric cancer. CTC grade ³3 treatment emergent adverse events with greater than 5% incidence included abnormal hepatic function in 13% (4/31), gastrointestinal bleeding or decreased appetite in 10% (3/31 each), and diarrhea or gastrointestinal perforation in 6% (2/31 each). This China study concluded that savolitinib monotherapy demonstrated promising anti-tumor efficacy in gastric cancer patients with c-Met

gene amplification, and that the potential benefit to these patients warranted further exploration, with Phase II enrollment continuing in China.

The VIKTORY Phase II study is now complete in c-Met gene amplified patients in South Korea, and the full data is expected to be published in a scientific journal in 2019.

Phase II studies were commenced to assess safety and tolerability of savolitinib in combination with Taxotere along with the preliminary efficacy of the combination therapy in both MET amplified patients and the cancer patients who harbor MET over-expression. While the savolitinib and Taxotere combination was well tolerated, the VIKTORY study investigators decided to stop enrollment in the two combination cohorts in order to direct patients to the above higher priority savolitinib monotherapy arm of the VIKTORY study.

The table below shows a summary of the clinical study that is underway for savolitinib in prostate cancer patients.

A Phase II study sponsored by the Canadian Cancer Trials Group is enrolling patients to determine the effect of savolitinib on prostate-specific antigen decline and time to prostate-specific antigen progression. The study will assess the objective response rate as determined by Response Evaluation Criteria in Solid Tumors, or RECIST, revision version 1.1, a set of published rules that define when tumors improve, stay the same or worsen during treatment. It will also evaluate the safety and toxicity profile of savolitinib in metastatic castration-resistant prostate cancer patients and identify potential predictive and prognostic factors. The umbrella study targets to enroll around 500 patients into four treatment arms based on molecular status, with one treatment arm being patients with c-Met-driven disease receiving savolitinib. High levels of c-Met over expression can be prevalent in prostate cancer patients.

In December 2011, we entered into a global licensing, co-development, and commercialization agreement for savolitinib with AstraZeneca. As noted above, given the complexity of many of the signal transduction pathways and resistance mechanisms in oncology, the industry is increasingly studying combinations of targeted therapies (tyrosine kinase inhibitors, monoclonal antibodies and immunotherapies) and chemotherapy as potentially the best approach to treating this complex and constantly mutating disease. Based on savolitinib showing early clinical benefit as a highly selective c-Met inhibitor in a number of cancers, in August 2016 we and AstraZeneca amended our global licensing, co-development, and commercialization agreement for savolitinib. We believe that AstraZeneca's portfolio of proprietary targeted therapies is well suited to be used in combinations with savolitinib, and we are studying combinations with Iressa (EGFRm+), Tagrisso (T790M+) and Imfinzi (PD-L1). These combinations of multiple global first-in-class compounds are difficult to replicate, and we believe represent a significant opportunity for us and AstraZeneca.

For more information regarding our partnership with AstraZeneca, see "—Overview of Our Collaborations."

When we established our medicinal chemistry research platform in 2005, our first priority area of interest was to discover drug candidates to overcome the shortcomings of a few drugs or drug candidates that were in late-stage clinical development at the time, but had a well understood mechanism of action. As a result, we developed fruquintinib (also known as HMPL-013), a VEGFR inhibitor that we believe is highly differentiated due to its superior kinase selectivity compared to other small molecule VEGFR inhibitors, which can be prone to excessive off-target toxicities. Fruquintinib's selectivity on VEGFR 1, 2 and 3, results in fewer off-target toxicities, thereby allowing for better target coverage, as well as possible use in combination with other agents such as chemotherapies, targeted therapies and immunotherapies.

We believe these are meaningful points of differentiation compared to other approved small molecule VEGFR inhibitors such as Sutent, Nexavar and Stivarga, and can potentially significantly expand the use and market potential of fruquintinib. Consequently, we believe that fruquintinib has the potential to become the global best-in-class selective small molecule VEGFR inhibitor for many types of solid tumors.

Fruquintinib capsules, sold under the brand name Elunate, were approved for marketing in China by the NMPA in September 2018 and commercially launched in late November 2018. Elunate is for the treatment of patients with metastatic colorectal cancer that have been previously treated with fluoropyrimidine, oxaliplatin and irinotecan, including those who have previously received anti-VEGF therapy and/or anti-EGFR therapy (Ras wild type).

Working closely with our commercial partner Eli Lilly, we were able to secure Elunate's inclusion on certain city-level reimbursement lists in early 2019, meaning that a majority of the cost is covered by insurance for patients in certain cities. We believe this will quickly give us a sense for the longer-term market potential for Elunate in third-line colorectal cancer patients. Aside from these cities, all sales are currently paid for out of pocket by patients, but we aim for Elunate eventually to be included in China's National Medicines Catalogue. To broaden access to Elunate, Eli Lilly has implemented a means-based patient access program, whereby patients pay for three 28-day cycles of Elunate (cycles one, two and five) at the full price. Outside of these three paid-for cycles, Elunate will be provided for free.

During the pathogenesis of cancer, tumors at an advanced stage can secrete large amounts of VEGF, a protein ligand, to stimulate formation of excessive vasculature (angiogenesis) around the tumor in order to provide greater blood flow, oxygen, and nutrients to fuel the rapid growth of the tumor. Since essentially all solid tumors require angiogenesis to progress beyond a few millimeters in diameter, anti-angiogenesis drugs have demonstrated benefits in a wide variety of tumor types. The global market for anti-angiogenesis therapies was estimated at over $16 billion in 2018, including both monoclonal antibodies and small molecules approved in around 30 tumor settings. VEGF and other ligands can bind to three VEGF receptors, VEGFR 1, 2 and 3, each of which has been shown to play a role in angiogenesis. Therefore, inhibition of the VEGF/VEGFR signaling pathway can act to stop the growth of the vasculature around the tumor and thereby starve the tumor of the nutrients and oxygen it needs to grow rapidly.

This therapeutic strategy has been well validated, with several first-generation VEGF inhibitors having been approved globally since 2005 and 2006. These include both small molecule tyrosine kinase inhibitor drugs such as Nexavar and Sutent as well as monoclonal antibodies such as Avastin (bevacizumab). The success of these drugs validated VEGFR inhibition as a new class of therapy for the treatment of cancer.

Pre-clinical studies have demonstrated that fruquintinib is a highly selective VEGFR inhibitor with high potency and low cell toxicity at the enzymatic and cellular levels. Fruquintinib has been studied in nude mice models bearing various human tumors and has shown significant inhibition of tumor growth, with human gastric cancer showing the strongest sensitivity. A daily dose of 2 mg/kg was found to almost completely inhibit tumor growth in mice models.

As a result of off-target side effects, existing VEGFR inhibitors are often unable to be dosed high enough to completely inhibit VEGFR, the intended target. In addition, the complex off-target toxicities resulting from inhibition of multiple signaling pathways are often difficult to be managed in clinical practice. Combining such drugs with chemotherapy can lead to severe toxicities that can cause more harm than benefit to patients. To date, the first generation VEGFR tyrosine kinase inhibitors have been rarely used in combination with other therapies, thereby limiting their potential. Because of the potency and selectivity of fruquintinib, we believe that it has the potential to be safely combined with other anti-cancer drugs, which could significantly expand its clinical potential.

The pharmacokinetic properties of fruquintinib in patients have also been found to have high drug exposures at the optimal 5 mg daily dose of approximately 6,000 h*ng/mL (i.e., hours multiplied by nanogram per milliliter, which is a measurement of drug exposure over time), well above the exposure of 898 h*ng/mL required to cover the VEGFR target to EC₅₀ levels in mouse models, suggesting potentially strong target coverage in humans at this dose. At this dose, we expect fruquintinib to fully inhibit VEGFR for an entire day through a single oral dose based on modeling using pre-clinical data. In contrast, Sutent achieved a drug exposure of only 592 h*ng/mL at the maximum tolerated dose of 50 mg per day, which is well below the drug exposures required for target inhibition determined in its pre-clinical models of 2,058 h*ng/mL, suggesting insufficient target coverage in humans.

A Phase I dose escalation study in patients with advanced solid tumors in China was initiated in January 2011, and results were presented at the American Association for Cancer Research's meeting in 2013 and subsequently published in Cancer Chemotherapy and Pharmacology in August 2016. A total of 40 subjects with advanced solid tumors were enrolled in this clinical study. The primary endpoint was evaluation of safety during the first 28-day cycle of therapy following the initiation of multiple dosing of fruquintinib. The safety variables evaluated in this study were adverse events, physical examinations, vital signs (specifically including blood pressure), clinical laboratory evaluations including serum chemistry, hematology, urinalysis (with detailed sediment analysis, proteinuria, and 24-hour urine for collection of protein), and electrocardiograms.

Most adverse events were considered mild and graded as CTC grade 1 or 2. Adverse events CTC grade ³3 with greater than 5% incidence related to fruquintinib treatment were hypertension (18%), hand-foot syndrome (18%), thrombocytopenia (13%), diarrhea (8%), fatigue (8%) and proteinuria (5%).

Furthermore, the Phase I study validated in humans the pre-clinical pharmacokinetic animal model findings of fruquintinib's ability to provide strong target coverage. The chart below shows that fruquintinib fully inhibits VEGFR in humans for the entire day at the optimal 5 mg daily dose level.

Figure 10: Fruquintinib plasma concentration in humans following once daily dosing in comparison to effective concentrations (EC) of fruquintinib required for VEGFR2 phosphorylation (activation) inhibition in mouse

Notes: EC₅₀ = concentration of a drug that gives 50% of maximal response; EC80 = concentration of a drug that gives 80% of maximal response; QD = once daily.

Tumor response and progression were evaluated using the RECIST 1.0. In terms of efficacy, in the entire intent-to-treat population of 40 subjects, 14 had confirmed partial response, 14 had stable disease, six had progressed disease, and six were not evaluable. The objective response rate was 41% in the 34 evaluable patients and 35% in the entire intent-to-treat population of 40 patients, and the disease control rate was 82% among evaluable patients and 70% in the intent-to-treat population. Out of the 34 evaluable patients, only six patients had tumor growth, with the rest experiencing substantial tumor shrinkage.

In this Phase I study, clear tumor response was observed in multiple tumor types, consistent with the fact that angiogenesis, driven by VEGFR activation, accelerates the growth of tumors in many settings. The highest objective response rate in this Phase I study was achieved in non-small cell lung cancer and gastric cancer patients with objective response rates of over 50%. However, we also observed objective response rates of approximately 30% in colorectal and breast cancer patients.

As a result of this study, we determined that either 4 mg once daily or 5 mg once daily on a 3-weeks-on/1-week-off basis was safe and tolerable. This study also found that doses above 4 mg once daily achieved drug exposures well above EC80 (the concentration that leads to an 80% maximal response) of the VEGFR phosphorylation inhibition over a 24-hour time period.

In December 2017, we initiated a multi-center, open-label, Phase I clinical study to evaluate the safety, tolerability and pharmacokinetics of fruquintinib in U.S. patients with advanced solid tumors. In 2018, the U.S. recommended Phase II dose for fruquintinib was determined to be the same as that in China, 5 mg once daily on a 3-weeks-on/1-week-off regimen.

The table below shows a summary of the clinical studies we have recently completed, are underway or are in planning for fruquintinib in colorectal cancer patients. We have one additional trial in planning for

fruquintinib in colorectal cancer in combination with a checkpoint inhibitor as discussed in more detail below under "—Combinations with Checkpoint Inhibitors."

In 2012, we initiated a Phase Ib study in China in patients with advanced colorectal cancer to compare the safety and tolerability of a 5 mg once daily 3-weeks-on/1-week-off regimen versus a 4 mg continuous once daily regimen. The study was divided into a randomized comparison study with 20 patients taking each regimen. The primary endpoint was the incidence of adverse effects, including significant adverse events, CTC grades 3 or 4 adverse effects and adverse effects that lead to dose interruption or dose discontinuation. In this study, both dose regimens demonstrated similar clinical efficacy and safety profile with the 5 mg once daily 3-weeks-on/1-week-off regimen showing slightly more favorable results. An additional 22 patients were subsequently enrolled into the 5 mg once daily 3-weeks-on/1-week-off regimen to further confirm the safety and tolerability of this regimen. As a result of this study, we determined the recommended Phase II dose regimen to be 5 mg, once daily, on a 3-weeks-on/1-week-off basis. Full results of this study were presented at the American Society of Clinical Oncology's annual meeting in 2014.

In late 2014, we completed enrollment for a Phase II, double-blind, placebo-controlled, multi-center study in China in just over four months to test fruquintinib as a monotherapy among third-line metastatic colorectal cancer patients, using the 5 mg daily, 3-weeks-on/1-week-off dose regimen determined from our Phase I study discussed above. The goal of this study was to compare the efficacy, including progression-free survival, of fruquintinib versus placebo in metastatic colorectal cancer patients who failed at least two prior lines of treatment, including fluorouracil, oxaliplatin and irinotecan. A total of 71 patients were enrolled, with 47 in the fruquintinib arm and 24 in the placebo arm, respectively. Patient baseline characteristics were similar between the two treatment arms.

Fruquintinib demonstrated strong anti-tumor activity in this study. Median progression-free survival was 4.7 months in the fruquintinib arm compared to median progression-free survival of 1.0 month in the placebo arm (hazard ratio = 0.30 (p<0.001)). The disease control rate in the fruquintinib arm was 68% compared with 21% in the placebo arm (p<0.001). The interim median overall survival rate was 7.6 months and 5.5 months in the fruquintinib arm and the placebo arm, respectively. In this study, fruquintinib has not shown any major unexpected safety issues and clearly met its primary endpoint of progression-free survival. The result of 4.7 months in median progression-free survival compares favorably with results recorded to date in third-line colorectal cancer in trials involving VEGFR tyrosine kinase inhibitors. The safety profile in this study was also consistent with our Phase Ib trial for fruquintinib in third-line metastatic colorectal cancer patients. The full results of this study were presented at the European Cancer Congress in 2015.

In 2014, we initiated the FRESCO study, which is a randomized, double-blind, placebo-controlled, multi-center, Phase III pivotal trial in China in patients with locally advanced or metastatic colorectal cancer who have failed at least two prior systemic antineoplastic therapies, including fluoropyrimidine, oxaliplatin and irinotecan. No drugs had been approved in third-line colorectal cancer in China with best supportive care being the general standard of care. Enrollment was completed in May 2016 and 519 patients were screened. The intent-to-treat population of 416 patients was randomized at a 2:1 ratio to receive either: 5 mg of fruquintinib orally once daily, on a three-weeks-on/one-week-off cycle, plus best supportive care (278 patients) or placebo plus best supportive care (138 patients). Randomization was stratified for prior anti-VEGF therapy and K-Ras gene status. The trial concluded in January 2017.

In June 2017, we presented the results of the FRESCO study in an oral presentation during the American Society of Clinical Oncology Annual Meeting. Results showed that FRESCO met all primary and secondary endpoints including significant improvements in overall survival and progression-free survival with a manageable safety profile and lower off-target toxicities compared to other targeted therapies. The primary endpoint of median overall survival was 9.30 months (95% confidence interval: 8.18-10.45) in the fruquintinib group versus 6.57 months (95% confidence interval: 5.88-8.11) in the placebo group, with a hazard ratio of 0.65 (95% confidence interval: 0.51-0.83; two-sided p<0.001). The secondary endpoint of median progression-free survival was 3.71 months (95% confidence interval: 3.65-4.63) in the fruquintinib group versus 1.84 months (95% confidence interval: 1.81-1.84) in the placebo group, with a hazard ratio of 0.26 (95% confidence interval: 0.21-0.34; two-sided p<0.001). Significant benefits were also seen in other secondary endpoints. The disease control rate in the fruquintinib group was 62% versus 12% for placebo (p<0.001), while the objective response rate based on confirmed responses was 5% versus 0% for placebo (p=0.012).

Figure 12: Phase III study in China of fruquintinib monotherapy in third-line colorectal cancer.
FRESCO clearly succeeded in meeting the primary efficacy endpoint of OS.

Notes: N = number of patients; BSC = best standard of care; 95% CI = 95% confidence interval; HR = hazard ratio.

In terms of safety, results showed that fruquintinib had a manageable safety profile with lower off-target toxicities compared to other VEGFR tyrosine kinase inhibitors. Of particular interest was that the CTC grade ³3 hepatotoxicity was similar for the fruquintinib group as compared to the placebo group, which is in contrast to Stivarga which was markedly worse and often difficult to manage in this patient population in the CONCUR study, a Phase IV study of Stivarga monotherapy in colorectal cancer. The most frequently reported fruquintinib-related CTC grade ³3 adverse events included hypertension (21%), hand-foot skin reaction (11%), proteinuria (3%) and diarrhea (3%), all possibly associated with VEGFR inhibition. No other CTC grade ³3 adverse events exceeded 2% in the fruquintinib population, including hepatic function adverse events such as elevations in bilirubin (1%), alanine aminotransferase (<1%) or aspartate aminotransferase (<1%). In terms of tolerability, dose interruptions or reductions occurred in only 35% and 24% of patients in the fruquintinib arm, respectively, and only 15% of patients discontinued treatment of fruquintinib due to adverse events versus 6% for placebo. The FRESCO study was published in the Journal of the American Medical Association in June 2018.

In June 2018, a further analysis of data from the FRESCO Phase III study was presented during the American Society of Clinical Oncology Annual Meeting. This analysis explored possible effects of prior target therapy on the efficacy and safety of fruquintinib by analyzing the subgroups of patients with prior target therapy and those without prior target therapy. The results of this analysis showed that fruquintinib had clinically meaningful benefits in third-line metastatic colorectal cancer patients regardless of prior target therapy without observed accumulative toxicity.

Results previously presented at the 20th Annual Meeting of the Chinese Society of Clinical Oncology showed that the benefits of fruquintinib were generally consistent across all subgroups. Among a total of 278 fruquintinib-treated patients, 111 had received prior target therapy. In the prior target therapy subgroup, fruquintinib significantly prolonged overall survival and progression-free survival. Median overall survival was 7.69 months for patients treated with fruquintinib and 5.98 months for placebo (hazard ratio = 0.63; p = 0.023). Median progression free survival was 3.65 months for patients treated with fruquintinib and 1.84 months for placebo (hazard ratio = 0.24; p < 0.001). The results showed that a subgroup of 84 patients who has received prior anti-VEGF treatment also benefited from fruquintinib. In this subgroup, the median overall survival was 7.20 months for fruquintinib and 5.91 months for placebo (hazard ratio = 0.68; p=0.066) and the median progression-free survival was 3.48 months for fruquintinib and 1.84 months for placebo (hazard ratio = 0.24; p < 0.001). In the subgroup of patients without prior target therapy, the median overall survival was 10.35 months for patients treated with fruquintinib and 6.93 months for placebo (hazard ratio = 0.63; p = 0.01), and the median progression free survival for patients treated with fruquintinib was 3.81 months versus 1.84 months for placebo (hazard ratio = 0.28; p < 0.001).

Additional data showed that there were no observed accumulative CTC grade ³3 treatment-emergent adverse events in the subgroup of patients with prior target therapy. The CTC grade ³3 treatment-emergent adverse event rates of fruquintinib were similar in the subgroups with prior target therapy (61.3%) and without prior target therapy (61.1%). This subgroup analysis is consistent with the previously reported results from the FRESCO study's intent-to-treatment population.

Supported by data from the successful FRESCO study, we submitted an NDA for fruquintinib in June 2017. Fruquintinib was subsequently awarded priority review status by the NMPA in view of its clinical value in September 2017, and in September 2018, the NMPA approved fruquintinib for the treatment of patients with advanced colorectal cancer.

We have begun planning for a Phase II/III registration study in the United States and Europe in third- or fourth-line metastatic colorectal cancer patients who are resistant to or intolerant of prior Stivarga or Lonsurf treatment.

Advanced gastric cancer is a major medical need, particularly in Asian populations, with limited treatment options for patients who have failed first-line standard chemotherapy with 5-fluorouracil and platinum doublets. There are approximately 442,000 new cases and 295,000 deaths due to gastric cancer in China each year. The table below shows a summary of the clinical study we have underway for fruquintinib in gastric patients.

In early 2017, we completed an open label, multi-center Phase Ib dose finding/expansion study of fruquintinib in combination with Taxol in second-line gastric cancer and presented the results during the American Society of Clinical Oncology's 2017 Gastrointestinal Cancers Symposium. As of September 10, 2016, a total of 32 patients were enrolled in the study and the recommended dose was determined to be 4 mg once daily on a 3-weeks-on/1-week-off schedule in combination with a weekly dose of 80 mg/m² of Taxol. A total of 28 out of the 32 patients were efficacy evaluable with an objective response rate of 36% (10/28, based on confirmed partial responses) and a disease control rate of 68% (19/28). At the recommended dose, progression-free survival of ³16 weeks was 50% of and overall survival of ³7 months was 50%. Tolerability of the recommended dose combination was as expected. In the drug expansion stage, CTC grade ³3 adverse events with greater than 5% incidence related to the treatment were neutropenia (58%), leukopenia (21%), hypertension (11%), decreased platelet count (5%), anemia (5%), hand-foot skin reaction (5%), mucositis oral (5%), hepatic disorder (5%), and upper gastrointestinal hemorrhage (5%), while neutropenia and leukopenia are common Taxol adverse events. The combination regime resulted in an approximately 30% increase in Taxol exposure in patients indicating the potential to decrease the required dose of Taxol in future development. In October 2017, based on the Phase Ib data, we initiated FRUTIGA, a pivotal Phase III clinical trial of fruquintinib in combination with Taxol in second-line gastric cancer.

Figure 14: Phase Ib study of fruquintinib combined with Taxol in gastric cancer. Phase III initiation made on the basis of these encouraging efficacy data.

In October 2017, we initiated the FRUTIGA study, a pivotal Phase III clinical trial of fruquintinib in combination with Taxol for the treatment in advanced gastric or gastroesophageal junction adenocarcinoma patients in China. This randomized, double-blind, placebo-controlled, multi-center trial is being conducted in patients with advanced gastric cancer who have progressed after first-line standard chemotherapy. Over 500 patients are expected to be enrolled in the FRUTIGA study to evaluate the efficacy and safety of fruquintinib combined with paclitaxel compared with paclitaxel monotherapy for second-line treatment of advanced gastric or gastroesophageal junction adenocarcinoma. The trial will enroll patients with disease that has been confirmed through histology or cytology and who did not respond to first-line standard chemotherapy containing platinum and fluorouracil. All subjects will receive fruquintinib or placebo combined with paclitaxel. Patients will be randomized at a 1:1 ratio and stratified according to factors such as stomach versus gastroesophageal junction tumors and ECOG performance status, a scale established by the Eastern Cooperative Oncology Group which determines ability of patient to tolerate therapies in serious illness, specifically for chemotherapy. An independent data monitoring committee will be established to review safety and efficacy data.

The primary efficacy endpoint is overall survival. Secondary efficacy endpoints include progression-free survival, objective response rate, disease control rate, duration of response and quality-of-life score (EORTC QLQ-C30, version 3.0). Biomarkers related to the antitumor activity of fruquintinib will also be explored.

We intend to conduct an interim analysis of the FRUTIGA study for futility during the first half of 2019. The analysis will evaluate progression-free survival overall survival trends after six months of therapy for the first 100 patients recruited into the study.

The table below shows a summary of the clinical studies we have recently completed and underway for fruquintinib in non-small cell lung cancer patients. We have one additional trial in planning for fruquintinib in non-small cell lung cancer in combination with a checkpoint inhibitor as discussed in more detail below under "—Combinations with Checkpoint Inhibitors."

In 2014, we initiated a Phase II randomized, double-blind, placebo-controlled, multi-center study of fruquintinib versus placebo among patients with advanced non-squamous non-small cell lung cancer who failed two lines of chemotherapy in China. By early March 2015, enrollment had been completed with a total of 91 patients randomized to 5 mg of fruquintinib orally once per day, on a 3-weeks-on/1-week-off regimen plus best supportive care, or placebo plus best supportive care at a 2:1 ratio.

In 2015, we reported that fruquintinib had clearly met its primary endpoint of superior median progression-free survival versus placebo in this study, and in December 2016, we reported the full data from this study at the 2016 World Conference on Lung Cancer, which showed median progression-free survival of 3.8 months for the fruquintinib group compared with 1.1 months for the placebo group (hazard ratio=0.34; 95% confidence interval: 0.20-0.57; p<0.001), an objective response rate based on confirmed partial responses of 13% for the fruquintinib group compared with 0% for the placebo group (p=0.041), and a 48% increase in disease control rate for the fruquintinib group compared with the placebo group (p<0.001). All were assessed by blinded independent clinical review. Fruquintinib was well tolerated with treatment related CTC grade ³3 adverse events with greater than 5% incidence being hypertension (8%).

Figure 16: Phase II study in China of fruquintinib monotherapy in third-line non-small cell lung cancer. This study clearly met the median progression-free survival primary endpoint.

Notes: N = number of patients; mo. = months; PFS = progression free survival; 95% CI = 95% confidence interval; HR = hazard ratio.

Following a positive Phase II study comparing fruquintinib with placebo in advanced non-squamous non-small cell lung cancer patients who have failed two prior systemic chemotherapies, or third-line non-small cell lung cancer, we initiated a Phase III registration study, the FALUCA study, in late 2015. In February 2018, we completed enrollment of the FALUCA study in China, in which a total of 527 patients were randomized at a 2:1 ratio to receive either 5 mg of fruquintinib orally once daily, on a 3-weeks-on/1-week-off cycle plus best supportive care, or placebo plus best supportive care. In November 2018, we announced that the trial did not meet the primary endpoint to demonstrate a statistically significant increase in overall survival compared to placebo. However, fruquintinib demonstrated a statistically significant improvement in all secondary endpoints including progression-free survival, objective response rate, disease control rate and duration of response as compared to the placebo. The safety profile of the trial was in line with that observed in prior clinical studies. We intend to submit a full analysis of the study/presentation at a scientific conference in 2019.

Fruquintinib's unique safety and tolerability profile, resulting from its high kinase selectivity, combined with better flexibility to manage treatment emergent toxicities due to its shorter half-life than monoclonal antibody anti-angiogenesis therapies, makes it a suitable potential combination partner for EGFR tyrosine kinase inhibitors.

In early 2017, we initiated a multi-center, single-arm, open-label, dose-finding Phase II study of fruquintinib in combination with Iressa in China in the first-line setting for patients with advanced or metastatic non-small cell lung cancer with EGFR activating mutations. We have enrolled about 50 patients in this study with the objective of evaluating the safety and tolerability as well as the efficacy of the combination therapy. Preliminary data was presented in 2017 at the World Conference on Lung Cancer, showing an encouraging response and safety profile.

There were 8 (31%) CTC grade ³3 treatment emergent adverse events being increased alanine aminotransferase (19%), increased aspartate aminotransferase (4%), proteinuria (4%) and hypertension (4%). There were no serious adverse events or those that lead to death. Preliminary results in 17 efficacy evaluable patients showed an objective response rate of 76% (13/17), including 9 confirmed and 4 unconfirmed partial responses at the time of data cut-off, as well as a disease control rate of 100% (17/17).

The primary objective of this exploratory study is to determine the safety and tolerability and median progression-free survival of the fruquintinib and Iressa combination. Primary data completion is anticipated in late 2019.

Figure 17: Phase II study of fruquintinib combined with Iressa in non-small cell lung cancer. Preliminary data showed promising efficacy in the first-line setting.

The table below shows a summary of the clinical studies we have in planning for fruquintinib in combination with checkpoint inhibitors.

In November 2018, we entered into two collaboration agreements to evaluate the safety, tolerability and efficacy of fruquintinib in combination with checkpoint inhibitors. These include a global collaboration with Innovent to evaluate the combination of fruquintinib with Innovent's Tyvyt, a PD-1 monoclonal antibody approved in China in late 2018 and a collaboration in China with Genor to evaluate the fruquintinib combination with genolimzumab (GB226), a PD-1 monoclonal antibody being developed by Genor. Safety run-in studies are currently underway/in planning to establish the safe and effective dose regimens for the fruquintinib combinations with Tyvyt or with genolimzumab.

In October 2013, we entered into a license and collaboration agreement with Eli Lilly in order to accelerate and broaden our fruquintinib development program in China. As a result, we were able to quickly expand the clinical development of fruquintinib in three indications with major unmet medical needs in China: colorectal cancer, non-small cell lung cancer and gastric cancer, as discussed above. We recently amended our license and collaboration agreement with Eli Lilly. This amendment gives us, among other things, all planning, execution and decision making responsibilities for life cycle indication development of fruquintinib in China. It also gives us the promotion and distribution rights for fruquintinib in provinces that represent 30% (or 40% if certain additional criteria are met) of sales of fruquintinib in China upon the achievement of a non-fruquintinib related Eli Lilly commercial action. Support from Eli Lilly has also helped us to establish our own manufacturing (formulation) facility in Suzhou, China, which now produces clinical and commercial supplies of fruquintinib.

For more information regarding our partnership with Eli Lilly, see "—Overview of Our Collaborations."

As with fruquintinib, surufatinib (also known as HMPL-012) was created as part of our initial research goals to develop better, more selective inhibitors than what was under late-stage development at the time, including inhibitors targeting VEGFR and FGFR, two tyrosine kinase receptors associated with angiogenesis and tumor growth. In early 2008, we declared our first small molecule oncology drug candidate, surufatinib, and it was subsequently the first new compound IND application to be submitted, reviewed and approved by the NMPA under its "green channel" fast-track approval process.

Surufatinib is an oral small molecule angio-immuno kinase inhibitor targeting VEGFR, FGFR1 and colony stimulating factor-1 receptor, or CSF-1R, kinases that could simultaneously block tumor angiogenesis and immune evasion. Its unique angio-immuno kinase profile seems to support surufatinib as an attractive candidate for exploration of possible combinations with checkpoint inhibitors against various cancers. Surufatinib is currently in development as a single agent for neuroendocrine tumors, thyroid cancer and biliary tract cancer. It also has potential in other tumor types such as breast cancer with FGFR1 activation.

Surufatinib is the first oncology candidate that we have taken through proof-of-concept in China and expanded globally ourselves. Surufatinib is in proof-of-concept clinical trials in the United States and late-stage clinical trials in China as a monotherapy.

Both VEGFR and FGFR signaling pathways can mediate tumor angiogenesis. CSF-1R plays an important role in the functions of macrophages. Recently, the roles in increasing tumor immune evasion of VEGFR, FGFR in regulation of T cells, tumor-associated macrophages and myeloid-derived suppressor cells have been demonstrated. Therefore, blockade of tumor angiogenesis and tumor immune evasion by simultaneously targeting VEGFR, FGFR and CSF-1R kinases may represent a promising approach for anti-cancer therapy.

For more information on the VEGF mechanism of action, see "—Our Clinical Pipeline—Fruquintinib VEGFR 1, 2 and 3 Inhibitor—Mechanism of Action."

Surufatinib inhibited VEGFR1, 2, and 3, FGFR1 and CSF-1R kinases with IC₅₀ in a range of 1 nM to 24 nM. It also strongly blocked VEGF-induced VEGFR2 phosphorylation in HEK293 kinase insert domain receptor, or KDR, cells and CSF-1R phosphorylation in RAW264.7 cells with an IC₅₀ of 2 nM and 79 nM, respectively. Surufatinib also reduced VEGF- or FGF-stimulated human umbilical vein endothelial cell proliferation with an IC50 < 50 nM. In animal studies, a single oral dose of surufatinib inhibited VEGF-stimulated VEGFR2 phosphorylation in lung tissues of nude mice in an exposure-dependent manner. Furthermore, elevation of FGF23 levels in plasma 24 hours post dosing suggested suppression of FGFR signaling.

Surufatinib demonstrated potent tumor growth inhibition in multiple human xenograft models and decreased cluster of differentiation 31 expression remarkably, suggesting strong inhibition on angiogenesis through VEGFR and FGFR signaling. In a syngeneic murine colon cancer model, surufatinib demonstrated moderate tumor growth inhibition after single-agent treatment. Flow cytometry and immunohistochemistry analysis revealed an increase of certain T cells and a significant reduction in certain tumor-associated macrophages, including CSF-1R mutation positive tumor-associated macrophages in tumor tissue, indicating surufatinib has a strong effect on CSF-1R. Interestingly, a combination of surufatinib with a PD-L1 antibody resulted in enhanced anti-tumor effect. These results suggested that surufatinib has a strong effect in modulating angiogenesis and cancer immunity.

The multi-center, open-label, dose escalation, first-in-human Phase I study of surufatinib was initiated in China in 2010. Its primary objective was to study the safety and tolerability and determine the maximum tolerated dose or the recommended Phase II dose of surufatinib in patients with advanced malignant solid tumors. Secondary endpoints included pharmacokinetic properties and clinical efficacy. The study consisted of a dose escalation period and dose expansion period. The initial surufatinib dose was 50 mg, once daily. By 2014, 12 dose groups of 50-350 mg surufatinib per day had completed the dose escalation study. The maximum tolerated dose was not reached. However, the drug exposures appeared to stop increasing in proportion to dose from 300 mg to 350 mg. In addition, encouraging activity was seen both at 300 mg and 350 mg doses. A dose expansion study was conducted at the 300 mg and 350 mg dose levels to further investigate the safety, tolerability and pharmacokinetic profile, and preliminary efficacy of surufatinib. Final results as of 2015 were published in Oncotarget in February 2017.

A total of 77 patients were enrolled in the study. The first 43 patients were enrolled in surufatinib, formulation 1, in 50 mg, 75 mg, 110 mg, 150 mg, 200 mg, 265 mg and 300 mg once daily, as well as 125 mg and 150 mg twice daily dose cohorts. As the study progressed, a new milled formulation, formulation 2, was developed with an improved pharmacokinetic profile to replace formulation 1 and was used in the remaining study. There was no subject treated with surufatinib cross-over by formulations (i.e., no subject receiving formulation 1 had crossed over to formulation 2 during study treatment). A total of 34 patients were enrolled and treated with surufatinib formulation 2. 23 of the patients were enrolled in the formulation 2 dose escalation study in dose cohorts of 200 mg, 300 mg and 350 mg once daily, and a further 11 were enrolled in an expansion study in dose cohorts of 300 mg and 350 mg once daily. All 34 patients on formulation 2 completed the safety and pharmacokinetic evaluation. The maximum tolerated dose was also not reached in this formulation.

CTC grade ³3 adverse events observed in formulation 2 patients with greater than 5% incidence include proteinuria (15%), hypertension (9%), increased aspartate aminotransferase (6%), diarrhea (6%), decreased hemoglobin (6%), decreased platelet count (6%) and hypophosphatemia (6%). No

dose-limiting toxicity was observed, and maximum tolerated dose has not been determined. Overall, in this Phase I dose escalation study, surufatinib showed a safety profile that is comparable to the other drugs in the same class and that, as a single agent, it was well tolerated in patients with advanced solid tumors.

Pharmacokinetic analyses showed that the inter- and intra-individual variability in drug concentration was optimized and the exposures in terms of Cmax, or the maximum concentration that a drug achieves in a specified test area of the body after the drug has been administrated and prior to the administration of a second dose, and AUC were increased compared with formulation 1, indicating optimized oral absorption. Phase Ia pharmacokinetic profile of surufatinib in humans was consistent with pre-clinical findings in that surufatinib at the 300 mg Phase II dose provides for consistent and sustained target inhibition over 24 hours through an oral dose.

In terms of Phase Ia efficacy, among 34 patients treated with formulation 2, 28 patients were evaluable by RECIST 1.0 criteria, of which nine achieved confirmed partial response, including one patient with hepatocellular carcinoma receiving surufatinib 200 mg once daily, and eight with neuroendocrine tumors receiving surufatinib 300 or 350 mg once daily. There were 15 patients with stable disease (10 with neuroendocrine tumors, three with hepatocellular carcinoma, one with gastrointestinal stromal tumors, and one with an abdominal malignancy) and four patients with progressive disease. Based on confirmed responses, the objective response rate amongst all patients treated with surufatinib formulation 2 was 27% (9/34) and the disease control rate was 71% (24/34), or an objective response rate of 32% (9/28) and a disease control rate was 86% (24/28) amongst efficacy evaluable formulation 2 patients. The recommended Phase II dose was determined to be 300 mg once daily based on overall safety, tolerability and early clinical efficacy results.

Favorable clinical efficacy has been seen with surufatinib in patients with neuroendocrine tumors. The formulation 2 expansion study was conducted in neuroendocrine tumor patients who were given 300 mg or 350 mg once daily. Including dose escalation patients, a total of 21 neuroendocrine tumor patients were treated with formulation 2. There were eight confirmed partial response patients, 10 stable disease patients, and three patients were not evaluable for response. This yielded an objective response rate of 44% in the 18 evaluable neuroendocrine tumor patients and 38% in the entire intent-to-treat population of 21 neuroendocrine tumor formulation 2 patients (compared to an objective response rate of less than 10% for competing products, Sutent and Afinitor). The tumor origins of the eight neuroendocrine tumor patients with partial responses include pancreas (three patients), duodenum (one patient), rectum (one patient) and thymus (one patient), with the remaining two patients' tumors of unknown origin. Furthermore, neuroendocrine tumor responses to surufatinib have been observed to improve gradually with time.

This early preliminary clinical efficacy of surufatinib compares favorably to existing drugs approved for the treatment of neuroendocrine tumors. As shown below, however, approved therapies for neuroendocrine tumors are very limited with Afinitor and Sutent approved only for pancreatic neuroendocrine tumors (representing less than 10% of total neuroendocrine tumors) and showing an objective response rate of less than 10% compared to 38% for surufatinib. The somatostatin analogues octreotide and lanreotide are also approved for narrow subsets of gastrointestinal neuroendocrine tumors, but their objective response rate is less than 5%. In January 2018, the FDA approved Lutathera (lutetium Lu 177 dotatate) injection, a radiolabeled somatostatin analog which, like octreotide and lanreotide, is indicated for the treatment of somatostatin receptor-positive neuroendocrine tumors (gastroenteropancreatic in the case of Lutathera), and has a half-life of less than seven days.

We currently have various clinical trials of surufatinib ongoing or expected to begin in the near term in patients with neuroendocrine tumors and biliary tract cancer and in combination with checkpoint inhibitors.

The table below shows a summary of the clinical studies that we have underway for surufatinib in neuroendocrine cancer patients.

In 2015, we began a 30-patient, 300 mg daily, Phase Ib study in China in broad spectrum neuroendocrine tumor patients (pancreatic, gastrointestinal, liver, lymph and lung, among others) which, due to the major unmet medical need and strong efficacy of surufatinib, was expanded to over 65 patients, and enrollment was completed in August 2015. We then amended the protocol from a Phase Ib study to a single arm Phase II study for which enrollment of 81 patients (41 with pancreatic neuroendocrine tumors and 40 with extra-pancreatic neuroendocrine tumors) was completed in December 2015.

The majority of the patients enrolled in this Phase II study had grade 2 diseases (79%) and had failed previous systemic treatments (65%). We reported the results of this Phase II study at the 2017 European Neuroendocrine Tumor Society conference. As of January 2017, 13 patients had confirmed partial response and 61 patients had stable disease corresponding to an overall objective response rate of 16%, with 17% in pancreatic neuroendocrine tumors and 15% in extra-pancreatic neuroendocrine tumors, and an overall disease control rate of 91%. Median overall progression-free survival has not been reached, but is estimated to be 16.6 months, with as-expected, longer median progression-free survival in pancreatic neuroendocrine tumors estimated to be 19.4 months and shorter median progression-free survival in extra-pancreatic neuroendocrine tumors estimated to be 13.4 months. Importantly, in the context of our potential global development strategy, there were 14 patients who had progressed after treatment with systemic therapies (Sutent and Afinitor) and all benefited from the surufatinib treatment (four patients with partial response and 10 patients with stable disease). Surufatinib was well tolerated with adverse events CTC grade ³3 with greater than 5% incidence being hypertension (31%), proteinuria (14%), hyperuricemia (10%), hypertriglyceridemia (9%), diarrhea (7%) and alanine aminotransferase increase (6%). Based on this promising efficacy data and tolerability in patients with advanced pancreatic neuroendocrine tumors, two randomized Phase III trials, SANET-p and SANET-ep, have been initiated, as discussed below.

Figure 20: Phase II study in China of surufatinib monotherapy in neuroendocrine tumors.
Interim data demonstrates promising efficacy.

Source: European Neuroendocrine Tumour Society Annual Conference 2017. Data cut-off as of January 20, 2017.

Notes: NET = neuroendocrine tumors; P-NET = pancreatic neuroendocrine tumors; Non-P NET = non-pancreatic neuroendocrine tumors; PD = progressive disease; % pts = percentage of patients; PFS = progression-free survival; n = number; m = months.

In 2016, we initiated the SANET-p study, which is a Phase III study in China in patients with low- or intermediate-grade, advanced pancreatic neuroendocrine tumors. In this study, patients are randomized at a 2:1 ratio to receive either an oral dose of 300 mg of surufatinib once daily or placebo on a 28-day treatment cycle. The primary endpoint is progression-free survival, with secondary endpoints an oral dose of including objective response rate, disease control rate, time to response, duration of response, overall survival, safety and tolerability.

We expect to deliver an interim analysis in late 2019 and complete enrollment in early 2020. If the SANET-p Phase III data is consistent with the 17% objective response rate and estimated 19.4 month median progression-free survival reported in the above-mentioned Phase Ib/II study, we believe the benefits of surufatinib as a monotherapy to the approximately 3,200 new patients with pancreatic neuroendocrine tumors in China will be significant as compared to the treatment alternatives currently available to them.

In 2015, we initiated a multi-center, open-label, Phase I clinical study to evaluate the safety, tolerability and pharmacokinetics of surufatinib in U.S. patients with advanced solid tumors, which established the U.S. recommended Phase II dose to be the same as that in China. The encouraging data from the Phase II study of surufatinib in pancreatic neuroendocrine tumor patients in China discussed above has led us to expand enrollment in the United States into pancreatic neuroendocrine tumor patients. In addition, we have decided to proceed with planning for a U.S. and Europe registration study of surufatinib in pancreatic neuroendocrine patients who have progrssed on Sutent or Afinitor.

In 2015, we initiated the SANET-ep study, which is a Phase III study in China in patients with low- or intermediate-grade advanced extra-pancreatic neuroendocrine tumors. In this study, patients are randomized at a 2:1 ratio to receive either 300 mg of surufatinib orally daily or placebo, on a 28-day treatment cycle. The primary endpoint is progression-free survival, with secondary endpoints including objective response rate, disease control rate, time to response, duration of response, overall survival, safety and tolerability.

We expect to deliver an interim analysis in mid-2019 and complete enrollment in 2020. If the SANET-ep Phase III data is consistent with the 15% objective response rate and estimated 13.4 month median progression-free survival reported in the above-mentioned Phase II study, we believe the benefit of surufatinib as a monotherapy to patients with extrapancreatic neuroendocrine tumors in China will be significant as compared to the minimal treatment alternatives currently available to them.

Biliary tract cancer (also known as cholangiocarcinoma) is a heterogeneous group of rare malignancies arising from the biliary tract epithelia. Gemzar is the currently approved first-line therapy for biliary tract cancer patients, with a total of approximately 18,000 new patients per year in the United States according to the National Cancer Institute, but median survival is less than 12 months for patients with unresectable or metastatic disease at diagnosis. As a result, this is a major unmet medical need for patients who have progressed on chemotherapy. There is currently no standard of care for these patients. Surufatinib may offer a new targeted treatment option in this tumor type. The table below shows a summary of the clinical study that we have underway for surufatinib in biliary tract cancer patients.

In early 2017, we began a Phase Ib/II proof-of-concept study in patients with biliary tract cancer. We expect to submit the results of the Phase Ib/II study in China for publication during 2019 and intend to start a randomized, open-label Phase II/III study of surufatinib in second-line biliary tract cancer patients in comparison to capecitabine in China in early 2019.

We believe that surufatinib's VEGFR/FGFR1/CSF-1R inhibition profile has strong potential in second-line thyroid cancer patients, particularly in China where there are few safe and effective treatment options for this patient population. The table below shows a summary of the clinical study that we have recently completed for surufatinib in thyroid cancer patients.

In 2016, we initiated two Phase II studies in China to evaluate the safety, pharmacokinetics and efficacy of surufatinib in patients with both medullary and differentiated thyroid cancer and are observing encouraging early efficacy in these open-label studies. In 2017, we presented preliminary results of the Phase II studies at the 2017 American Society of Clinical Oncology Annual Meeting and at the American Thyroid Association Annual Meetings. The preliminary data in 16 efficacy evaluable patients showed an objective response rate based on confirmed responses of 30% (3/10) in differentiated thyroid cancer and an objective response rate of 17% (1/6) in medullary thyroid cancer, with all other patients reporting stable disease.

The table below shows a summary of the clinical studies that we have in planning for surufatinib combination with checkpoint inhibitors.

In November 2018, we entered into two collaboration agreements to evaluate the safety, tolerability and efficacy of surufatinib in combination with checkpoint inhibitors. These include a global collaboration with Junshi to evaluate the combination of surufatinib with Junshi's Tuoyi, a PD-1 monoclonal antibody approved in China in late 2018, and a collaboration in China with Hanzhong to evaluate the combination of surufatinib with HX008, a PD-1 monoclonal antibody being developed by Hanzhong. Safety run-in studies are currently being planned and expected to initiate in early 2019.

The result of our over six-year program of discovery and pre-clinical work against Syk is HMPL-523, a highly selective Syk inhibitor with a unique pharmacokinetic profile which provides for higher drug exposure in the tissue than on a whole blood level. We designed HMPL-523 intentionally to have high tissue distribution because it is in the tissue that the B-cell activation associated with rheumatoid arthritis and lupus occurs most often. Furthermore, and somewhat counter intuitively, in hematological cancer the vast majority of cancer cells nest in tissue, with a small proportion of cancer cells releasing and circulating in the blood where they cannot survive for long. In both rheumatoid arthritis and hematological cancer, we assessed that an effective small molecule Syk inhibitor would need to have superior tissue distribution.

However, many pharmaceutical and biotechnology companies had experienced difficulties in developing a safe and efficacious Syk-targeted drug. For example, the development of the Syk inhibitor fostamatinib for rheumatoid arthritis was one such failed program, although clear efficacy was observed in Phase II and Phase III trials. The main problem was off-target toxicities associated with poor kinase selectivity, such as hypertension and severe diarrhea. Therefore, we believe that kinase selectivity is critical to a successful Syk inhibitor. In addition, fostamatinib was designed as a prodrug in order to improve solubility and oral absorption. A prodrug is medication administered in a pharmacologically inactive form which is converted to an active form once absorbed into circulation. The rate of the metabolism required to release the active form can vary from patient to patient, resulting in large variation in active drug exposures that can impact efficacy. We believe HMPL-523 offers important advantages over intravenous

monoclonal antibody immune modulators in rheumatoid arthritis in that small molecule compounds clear the system faster, thereby reducing the risk of infections from sustained suppression of the immune system.

Targeting the B-cell signaling pathway is emerging as a potential means to treat both hematological cancer and immunology. Both PI3Kd and BTK (both kinases) along the B-cell signaling pathway have proven clinical efficacy in hematological cancers, and consequently the FDA has approved drugs targeting these kinases in the past few years. Syk is a key kinase upstream of the PI3Kd and BTK, and we believe should therefore be an important target for modulating B-cell signaling.

Note: This graphic is a highly simplified representation of the B-cell signaling pathways, which are each composed of a signaling cascade of the multiple kinases indicated in the graphic. Signaling from the B-cell receptor (BCR) through the cascade, in simple terms, triggers an immune response, including tumor cell activation, proliferation, survival and migration.

The central role of Syk in signaling processes is not only in cells of immune responses but also in cell types known to be involved in the expression of tissue pathology in autoimmune, inflammatory and allergic diseases. Therefore, interfering with Syk could represent a possible therapeutic approach for treating these disorders. Indeed, several studies have highlighted Syk as a key player in the pathogenesis of a multitude of diseases, including rheumatoid arthritis, systemic lupus erythematosus and multiple sclerosis.

In hematological cancer, we believe Syk is a high potential target. In hematopoietic cells, Syk is recruited to the intracellular membrane by activated membrane receptors like B-cell receptors or another receptor called Fc and then binds to the intracellular domain of the receptors. Syk is activated after being phosphorylated by Src family kinases and then further induces downstream intracellular signals including B-cell linker, PI3Kd, BTK and Phospholipase Cg2 to regulate B-cell proliferation, growth, differentiation, homing, survival, maturation, and immune responses. Syk not only involves the regulation of lymphatic cells but also signal transduction of non-lymphatic cells such as mast cells, macrophages, and basophils, resulting in different immunological functions such as degranulation to release immune active substances, leading to immunological reaction and disease. Therefore, regulating B-cell signal pathways through Syk is expected to be effective for treating lymphoma.

The high efficacy and successful approvals of both Imbruvica (ibrutinib) (developed by AbbVie Inc.), a BTK inhibitor, and Zydelig (idelalisib) (developed by Gilead), a PI3Kd inhibitor, are evidence that modulation of the B-cell signaling pathway is critical for the effective treatment of B-cell malignancies. Syk is upstream of both BTK and PI3Kd, and we believe it could deliver the same outcome as Imbruvica and Zydelig, assuming no unintentional toxicities are derived from Syk inhibition. Entospletinib (GS-9973), a Syk inhibitor developed by Gilead, reported promising Phase II study results in late 2015 with a nodal response rate of 65% observed in chronic lymphocytic leukemia and small lymphocytic lymphoma. Nodal response is defined as a greater than 50% decrease from baseline in the sum of lymph node diameters. Gilead has also reported that entospletinib demonstrated a nodal response rate of 44% in an exploratory clinical study in chronic lymphocytic leukemia patients previously treated with Imbruvica and Zydelig, thereby indicating that Syk inhibition has the potential to overcome resistance to Imbruvica and Zydelig. Takeda reported similarly strong signs of efficacy for their TAK-659 Phase I dose escalation study in lymphoma, which was also published in late 2015.

The threshold of safety for a Syk inhibitor in chronic disease is extremely high, with no room for material toxicity. The failure of fostamatinib in a global Phase III registration study in rheumatoid arthritis provided important insights for us in the area of toxicity. While fostamatinib clearly showed patient benefit in rheumatoid arthritis, a critical proof-of-concept for Syk modulation, it also caused high levels of hypertension which is widely believed to be due to the high levels of off target KDR inhibition. In addition, fostamatinib has also been shown to strongly inhibit the Ret kinase, and in pre-clinical studies it was demonstrated that inhibition of the Ret kinase was associated with developmental and reproductive toxicities.

The requirement for Syk kinase activity in inflammatory responses was first evaluated with fostamatinib, which was co-developed by AstraZeneca/Rigel Pharmaceuticals, Inc. (also called R788, a prodrug of an active Syk inhibitor R406). In 2013, AstraZeneca announced results from pivotal Phase III clinical trials that fostamatinib statistically significantly improved ACR20 (a 20% improvement from baseline based on the study criteria) response rates of patients inadequately responding to conventional disease-modifying anti-rheumatic drugs and a single anti-TNFa (a key pro-inflammatory cytokine involved in rheumatoid arthritis pathogenesis) antagonist at 24 weeks, but failed to demonstrate statistical significance in comparison to placebo at 24 weeks. As a result, AstraZeneca decided not to proceed.

Fostamatinib was also in trials for B-cell lymphoma and T-cell lymphoma. It demonstrated some clinical efficacy in diffused large B-cell lymphoma patients with an objective response rate of 22%. Entospletinib, a Syk inhibitor developed by Gilead, has features of high potency and good selectivity toward kinases. However, while the Phase II study discussed above showed that it had significant efficacy in patients with chronic lymphocytic leukemia and small lymphocytic lymphoma, its poor solubility and permeability into intestinal epithelial cells resulted in unsatisfactory oral absorption and a great variation of individual drug exposure. In addition, entospletinib shows some inhibition of the CYP3A4, CYP2D6, and CYP1A2 enzymes involved in the metabolism of certain drugs, and therefore their inhibition could increase the risk of drug-to-drug interaction when used in combined therapy.

The safety profile of HMPL-523 was evaluated in multiple in vitro and in vivo pre-clinical studies under good laboratory practice guidelines and found to be well tolerated following single dose oral administration. Toxic findings were seen in repeat dose animal safety evaluations in rats and dogs at higher doses and found to be reversible. These findings can be readily monitored in the clinical studies and fully recoverable upon drug withdrawal. The starting dose in humans was suggested to be 5 mg. This dose level is approximately 5% of the human equivalent dose extrapolated from the pre-clinical "no observed adverse event levels", which is below the 10% threshold recommended by FDA guidelines.

HMPL-523 is a highly selective Syk inhibitor with an IC₅₀ of 24 ± 4 nM (n=7) in a Syk kinase enzymatic assay. HMPL-523 has been evaluated in a kinase selectivity panel of 287 kinases and a broad pharmacological panel of 79 targets. We believe, as shown in the chart below, HMPL-523's lack of KDR inhibition will mean a much lower risk of hypertension, which is a major off-target toxicity of R406 in clinical trials.

Figure 25: HMPL-523 kinase selectivity in comparison to R406 (the Syk inhibitor metabolite of fostamatinib). R406 is shown below to be as potent in inhibiting KDR as it is in inhibiting Syk, and significantly more potent in inhibiting FLT3 and Ret.


Selectivity	HMPL-523 IC₅₀ (nM)	fostamatinib IC₅₀ (nM)
Syk enzyme	25 ± 5 (n=10)^*	54 ± 16 (n=10)^*
JAK 1,2,3 enzyme	>300, >300, >300*	120, 30, 480*
FGFR 1,2,3	>3,000, >3,000, >3,000	89, 22, 32*
FLT3 enzyme	63^*	9^*
LYN enzyme	921^*	160^*
Ret enzyme	>3,000*	5**
KDR enzyme	390 ± 38 (n=3)^*	61 ± 2 (n=3)^*
KDR cell	5,501 ± 1,607 (n=3)^*	422 ± 126 (n=3)^*

HMPL-523 blocked B-cell activation in mouse whole blood and rat whole blood ex vivo challenge with an EC₅₀ of 1301 ng/mL (ED₅₀ of 2.9 mg/kg) and 332.8~471.7 ng/mL (ED₅₀ of 4.1~5.2 mg/kg) at 2 hours after dosing, respectively. The maximum inhibition was observed at 2 hours after oral dosing, while the significant inhibition was maintained for up to 4 hours. In collagen-induced rheumatoid arthritis in mice and rats, HMPL-523 treatment significantly reduced disease severity in a dose dependent manner. HMPL-523 not only halted disease progression, but also reversed aspects of the disease such as paw swelling and bone resorption to normal levels at higher doses in rat collagen-induced arthritis therapeutic models. HMPL-523 dose delivered similar efficacy to both fostamatinib, at a significantly higher dosage, and Enbrel (etanercept) (an approved monoclonal antibody from Amgen/Pfizer/Takeda).

In lupus-prone mice, HMPL-523 significantly blocked skin lesions, delayed the onset of proteinuria (the presence of abnormal quantities of proteins in urine which may indicate kidney damage) and reduced the immune organs to body weight ratios and suppressed production of anti-dsDNA antibodies (a group of anti-nuclear antibodies that act against certain DNA).

In in vitro B-cell lymphoma cell lines with Syk/BCR dysregulation, HMPL-523 was found to block phosphorylation of B-cell linker protein as well as inhibit cell viability by inhibiting cell survival and increasing apoptotic rate. HMPL-523 also showed synergistic anti-tumor activity on human diffused large B-cell lymphoma cells, in combination with other drugs such as PI3Kd inhibitors, B-cell lymphoma 2 family inhibitors, or chemotherapies. Potent anti-tumor activity was also demonstrated in nude mice bearing B-cell lymphoma xenograft tumors with Syk/B-cell receptor dysregulation.

In 2016, we reported results of the Phase I dose-escalation study on HMPL-523 in healthy volunteers in Australia, in which a total of 118 adult male healthy subjects were enrolled at baseline and 114 (97%) subjects completed the study. The Phase I study showed HMPL-523 exhibited a tolerable safety profile. A total of 83 treatment emergent adverse events were reported, with 39% in the HMPL-523 groups and 32% in the placebo groups, respectively. Two serious adverse events were reported in the Phase I study and when HMPL-523 was discontinued in those subjects the serious adverse events were resolved. Off-target toxicities such as diarrhea and hypertension, seen with the first-generation Syk inhibitor fostamatinib, were not observed.

In an ex-vivo human whole blood pharmacodynamic assay, HMPL-523 inhibited anti-IgE-induced basophil activation (CD63+) in a concentration-dependent manner with an estimated half maximal effective concentration of 47.70mg/mL. Systemic exposure of HMPL-523 was increased up to 1.5 fold when administered in a fed condition compared to a fasted condition, indicating that food consumption increases the relative bioavailability of HMPL-523. Human pharmacokinetic exposures at 200 mg once daily and above can be expected to provide the target coverage required for clinical efficacy based on the pre-clinical human pharmacokinetic/pharmacodynamics analysis and as a result, a multiple-dose regimen of 300 mg or less of HMPL-523, administered once daily, is the recommended Phase II dose for clinical trials in autoimmune diseases. HMPL-523 demonstrated a dose dependent suppression of B-cell activation. The data were presented at the annual meeting of the American College of Rheumatology/Association of Rheumatology Health Professionals in 2016. We have submitted IND applications for autoimmune diseases and expect, pending the imminent submission of additional data requested by the FDA, to progress into a Phase II proof-of-concept study in immunology in 2019.

As discussed below, we currently have various clinical trials of HMPL-523 ongoing or expected to begin in the near term in Australia, the United States, Europe and China as a monotherapy and in combination with azacitidine. The table below shows a summary of the clinical studies that we have underway for HMPL-523.

In early 2016, we initiated a Phase I dose escalation study of HMPL-523 in Australia in hematological cancer patients and have completed seven dose cohorts. A Phase I study in China began in early 2017 and has now completed five dose cohorts. In both Australia and China, we have established both efficacious once daily and twice daily dose regimens. Since early 2018, we have been increasing the number of active clinical sites, now totaling 18, in Australia and China to support a large dose expansion program in a broad range of hematological cancers. We intend to use safety and efficacy data from these Phase I/Ib dose escalation/expansion studies in B-cell malignancies to guide registration strategy in China during late 2019.

Our U.S. IND application for HMPL-523 was cleared by the FDA in mid-2018, and we are now planning to start a Phase I/Ib study in indolent non-Hodgkin's lymphoma patients in the U.S. and Europe in the first half of 2019.

In October 2018, we initiated a Phase I study of HMPL-523 in combination with azacitidine, an approved hypo methylation agent, in elderly patients with acute myeloid leukemia in China. This is a Phase I, open-label, multicenter study to evaluate the safety, pharmacokinetics and preliminary efficacy of the combination in previously untreated elderly patients with acute myeloid leukemia. The primary outcome measure is safety with a secondary endpoint of efficacy. The two-stage study will have a dose escalation and dose expansion stage.

We are also considering immunology applications for HMPL-523 including immune thrombocytopenia in China. Immune thrombocytopenia purpura is an autoimmune disorder characterized by low platelet count and an increased bleeding risk. Despite availability of several treatments with differing mechanisms of action, a significant proportion of patients develop resistance to treatment and are prone to relapse. In addition, there is a significant population of patients who have limited sensitivity to currently available agents and are in need of a new approach to treatment.

HMPL-689 is a novel, highly selective and potent small molecule inhibitor targeting the isoform PI3Kd, a key component in the B-cell receptor signaling pathway. We have designed HMPL-689 with superior PI3Kd isoform selectivity, in particular to not inhibit PI3Kg (gamma), offering advantages over Zydelig to minimize the risk of serious infection caused by immune suppression. HMPL-689's strong potency, particularly at the whole blood level, also allows for reduced daily doses to minimize compound related toxicity, such as the high level of liver toxicity observed with the first-generation PI3Kd inhibitor Zydelig. HMPL-689's pharmacokinetic properties have been found to be favorable with good oral absorption, moderate tissue distribution and low clearance in pre-clinical pharmacokinetic studies. We also expect that HMPL-689 will have low risk of drug accumulation and drug-to-drug interaction. We currently retain all rights to HMPL-689 worldwide.

Class I phosphatidylinositide-3-kinases, or PI3Ks, are lipid kinases that, through a series of intermediate processes, control the activation of several important signaling proteins including the

serine/threonine kinase AKT. In most cells, AKT is a key PI3K effector that regulates cell proliferation, carbohydrate metabolism, cell motility and apoptosis, and other cellular processes.

There are multiple sub-families of PI3K kinases, and PI3Kd plays important roles in B-cell activation, development, survival and migration. PI3Kd is mainly expressed in circulating leukocytes and lymphoid tissues and plays critical roles in B-cell activation and proliferation. PI3Kd is the central signaling enzyme that mediates the effects of multiple receptors on B-cells. Upon an antigen binding to B-cell receptors, PI3Kd can be activated through the Lyn and Syk signaling cascade.

Aberrant B-cell function has been observed in multiple autoimmune diseases and B-cell mediated malignancies. Therefore, PI3Kd is considered to be a promising target for drugs that aim to prevent or treat hematologic cancer, autoimmunity and transplant organ rejection and other related inflammation diseases.

Compared to other PI3Kd inhibitors, HMPL-689 shows higher potency and selectivity.

Figure 27: Enzyme selectivity (IC₅₀, in nM) of HMPL-689 versus competing PI3Kd inhibitors; this shows HMPL-689 is approximately five-fold more potent than Zydelig (idelalisib) on whole blood level and, unlike duvelisib, does not inhibit PI3Kg.

In 2016, we completed a Phase I, first-in-human, dose escalation study in healthy adult volunteers in Australia to evaluate the pharmacokinetics and safety profile following single oral dosing HMPL-689 (NCT02631642). Results were as expected with linear pharmacokinetics properties and good safety profile.

We subsequently received IND clearance in China and then initiated a Phase I dose escalation and expansion study in patients with hematologic malignancies in August 2017 (NCT03128164). We will aim to complete dose escalation and begin dose expansion in China in 2019.

We also plan to start a Phase I/Ib study in indolent NHL in the U.S. and Europe in the first half of 2019 (NCT03786926).

Epitinib (also known as HMPL-813) is a potent and highly selective oral EGFR inhibitor designed to optimize brain penetration. A significant portion of patients with non-small cell lung cancer go on to develop brain metastasis. Patients with brain metastasis suffer from poor prognosis and low quality of life with limited treatment options. Epitinib is a potent and highly selective oral EGFR inhibitor which has demonstrated brain penetration and efficacy in pre-clinical and now clinical studies. EGFR inhibitors have revolutionized the treatment of non-small cell lung cancer with EGFR activating mutations. However, approved EGFR inhibitors such as Iressa and Tarceva cannot penetrate the blood-brain barrier effectively, leaving the majority of patients with brain metastasis without an effective targeted therapy.

Our strategy has been to create targeted therapies in the EGFR area that would go beyond the already approved EGFRm+ non-small cell lung cancer patient population to address certain areas of unmet medical needs that represent significant market opportunities, including: (i) brain metastasis and/or primary brain tumors with EGFRm+, which we seek to address with epitinib; and (ii) tumors with EGFR gene amplification or EGFR over-expression, which we seek to address with theliatinib as discussed below.

EGFR is a protein that is a cell-surface receptor tyrosine kinase for epidermal growth factor. Activation of EGFR can lead to a series of downstream signaling activities that activate tumor cell growth, survival, invasion, metastasis and inhibition of apoptosis. Tumor cell division can happen uncontrollably when the pathway is abnormally activated through EGFRm+, gene amplification of wild-type EGFR or over-expression of wild-type EGFR. Treatment strategies for certain cancers involve inhibiting EGFRs with small molecule tyrosine kinase inhibitors. Once the tyrosine kinase is disabled, it cannot activate the EGFR pathway and trigger downstream signaling activities, thereby suppressing cancer cell growth.

Outside of non-small cell lung cancer, EGFRm+ also occurs in glioblastoma, a common type of malignant primary brain tumor.

Pre-clinical studies and orthotopic brain tumor models have shown that epitinib demonstrated brain penetration and efficacy superior to that of current globally marketed EGFRm+ inhibitors such as Iressa and Tarceva. In orthotopic brain tumor models, epitinib demonstrated good brain penetration, efficacy and pharmacokinetic properties as well as a favorable safety profile.

A first-in-human study was conducted in China to assess the maximum tolerated dose and dose-limiting toxicity, safety and tolerability, pharmacokinetics, and preliminary anti-tumor activity of epitinib. 36 patients were enrolled in seven cohorts (20 mg, 40 mg, 80 mg, 120 mg, 160 mg, 200 mg and 240 mg). This study found that the safety and tolerability of epitinib was acceptable. No dose-limiting toxicity was observed, and the maximum tolerated dose was not reached. The recommended dose from this study was 160 mg once daily based on pharmacokinetics data and safety data.

The table below shows a summary of the clinical studies that we have recently completed and underway for epitinib.

Glioblastoma is the most aggressive of the gliomas, which are tumors that arise from glial cells or their precursors within the central nervous system. Glioblastoma is classified as grade IV under the World Health Organization grading of central nervous system tumors, and is the most common brain and central

nervous system malignancy, accounting for about half of such tumors according to the Cancer Genome Atlas Research Network. The standard of care for treatment is surgery, followed by radiotherapy and chemotherapy. Median survival is approximately 15 months, and the 5-year survival rate is 6%. There are currently no target therapies approved for glioblastoma.

Epitinib is a highly differentiated EGFR inhibitor designed for optimal blood-brain barrier penetration. EGFR gene amplification has been identified in about half of glioblastoma patients, according to The Cancer Genome Atlas Research Network, and hence is a potential therapeutic target in glioblastoma.

In March 2018, we initiated a Phase Ib/II proof-of-concept study of epitinib in glioblastoma patients with EGFR gene amplification in China. This Phase Ib/II study will be a multi-center, single-arm, open-label study to evaluate the efficacy and safety of epitinib as a monotherapy in patients with EGFR gene amplified, histologically confirmed glioblastoma.

In this Phase Ib study, a total of 33 non-small cell lung cancer patients, of which 12 had previously received EGFR tyrosine kinase inhibitor treatment and 21 were EGFR tyrosine kinase inhibitor treatment naïve, were efficacy evaluable with an objective response rate of 39%, including 10 confirmed and three unconfirmed partial responses. Patients were treated with epitinib at a 160 mg once daily dose. All responses occurred in EGFR tyrosine kinase inhibitor treatment naïve patients resulting in an objective response rate of 62% and in the 11 EGFR tyrosine kinase inhibitor naïve patients who also had measurable brain metastasis (lesion diameter>10 mm per RECIST 1.1) with a 64% objective response rate. Furthermore, when patients with c-Met gene amplification were excluded, epitinib's objective response rate increased to 68% in the EGFR tyrosine kinase inhibitor treatment naïve patients and 70% of those patients who also had measurable brain metastasis. Epitinib was well tolerated with treatment related adverse events in the dose expansion stage CTC grade ³3 with greater than 10% incidence were elevations in alanine transaminase (19%), elevations in gamma-glutamyltransferase (11%), and aspartate transaminase (11%). In late 2016 we presented this encouraging efficacy data at the World Conference on Lung Cancer.

In 2017 and 2018, we worked to finalize epitinib dose regimen while planning our Phase III registration study. During this time, the EGFR tyrosine kinase inhibitor treatment landscape has evolved rapidly. First, Tagrisso, a third-generation EGFR tyrosine kinase inhibitor with blood-brain barrier penetration, was launched with accessible pricing in China and was subsequently included in the National Medicines Catalogue. Second, two generic first-generation EGFR tyrosine kinase inhibitors (gefitinib and erlotinib) were launched in China at approximately one-quarter of their previous National Medicines Catalogue prices. We are studying the impact of the above two factors on epitinib's market potential and Phase III investment case in EGFRm+ non-small cell lung cancer with brain metastasis in China.

Like epitinib, theliatinib (also known as HMPL-309) is a novel molecule EGFR inhibitor being investigated for the treatment of esophageal and other solid tumors. Tumors with wild-type EGFR activation, for instance, through gene amplification or protein over-expression, are less sensitive to EGFR tyrosine kinase inhibitors such as Iressa and Tarceva due to sub-optimal binding affinity. Theliatinib was designed with strong affinity to the wild-type EGFR kinase and has demonstrated five to ten times the potency than Tarceva in pre-clinical trials. This holds importance because tumors with wild-type EGFR activation have been found to be less sensitive to current EGFR inhibitors and is notable in certain cancer types such as esophageal cancer, where 15-28% have EGFR gene amplification and 50-70% have EGFR over-expression. As a result, we believe that theliatinib could potentially be more effective than existing

EGFR tyrosine kinase inhibitor products and benefit patients with esophageal and head and neck cancer, or other tumor types with a high incidence of wild-type EGFR activation. We currently retain all rights to theliatinib worldwide.

Unlike c-Met, where targeted therapies have yet to be approved in the patient population with c-Met over-expression, there are successful examples of clinical efficacy among patients with EGFR over-expression in tumor types such as colorectal cancer and head and neck cancer. The most successful targeted therapy in the patient population with EGFR over-expression is the monoclonal antibody Erbitux (cetuximab) (from Bristol Myers Squibb/Merck Serono), which is indicated for head and neck cancer and colorectal cancer. Importantly, there remain many tumor types with high levels of EGFR over-expression for which no targeted therapies have been approved. In addition, in patients with EGFR gene amplification, there are no approved targeted therapies despite high levels of EGFR gene amplification occurring in many of the above EGFR over-expressed tumor types.

EGFR is over-expressed in a significant proportion of epithelium-derived carcinomas, which are cancers that begin in a tissue that lines the inner or outer surfaces of the body. Theliatinib inhibits the epidermal growth factor-dependent proliferation of cells at nanomolar concentrations. Of most interest is the strong binding affinity to wild-type EGFR enzyme demonstrated by theliatinib. The data indicated that upon withdrawal of the drug, the EGFR phosphorylation rapidly returns to higher levels for Iressa and Tarceva, while EGFR phosphorylation remained low for theliatinib after drug withdrawal, suggesting theliatinib may demonstrate a sustained target occupancy or "slow-off" characteristic due to strong binding.

In 2012, we initiated the first-in-human Phase I, open-label, dose escalation study in China of theliatinib administered orally to patients with wild-type EGFR gene amplification or EGFR over-expression solid tumors who have failed standard therapy. The primary objectives of the study were to evaluate its safety and tolerability in patients with advanced solid tumors and to determine the maximum tolerated dose. The study also evaluated efficacy against non-small cell lung cancer, esophageal cancer and head and neck squamous cell lung cancer, determined the pharmacokinetics of theliatinib under single dose and repeat doses; and explored the relationship between the theliatinib's activity and certain biomarkers.

In September 2017, new clinical data were presented at the Annual Meeting of the Chinese Society of Clinical Oncology. Results showed that doses up to 500 mg once daily were determined to be safe and well-tolerated, with no dose-limiting toxicities and no clear maximum tolerated dose. Pharmacokinetic exposure increased with dose, with a 300 mg once daily or more considered to be sufficient to inhibit EGFR phosphorylation. Among the 21 patients that received 120 mg to 500 mg once daily, there were only four treatment-emergent adverse events of grade ³ 3: gastrointestinal bleeding, decreased white blood cell count, anemia or decreased platelet count (1/21 = 5% each). There were no incidences of grade ³3 rash or diarrhea. Among seven esophageal cancer patients, five had measurable lesions and could be evaluated for response. All five had stable disease. Of the efficacy evaluable patients in the 120 mg to 500 mg cohorts, 44% (8/18) had stable disease after 12 weeks.

Although we observed efficacy, primarily in the form of stable disease or short duration response, we have decided that it does not warrant continued development of theliatinib monotherapy in esophageal

cancer at this time. We now plan to look at alternative uses of theliatinib and could consider the potential for use in combinations with immunotherapy.

Fibroblast growth factor receptors, or FGFRs, belong to a subfamily of receptor tyrosine kinases, or RTKs. Four different FGFRs (FGFR1-4) and at least 18 ligand FGFs constitute the FGF/FGFR signaling system. Activation of the FGFR pathway through the phosphorylation of various downstream molecules ultimately leads to increased cell proliferation, migration and survival. FGF/FGFR signaling regulates a wide range of basic biological processes, including tissue development, angiogenesis, and tissue regeneration. Given the inherent complexity and critical roles in physiological processes, dysfunction in the FGF/FGFR signaling leads to a number of developmental disorders and is consistently found to be a driving force in cancer. Deregulation of the FGFR can take many forms, including receptor amplification, activating mutations, gene fusions, and receptor isoform switching, and the molecular alterations are found at relatively low frequencies in most tumors. The incidence of FGFR aberrance in various cancer types is listed in Figure 29 below.

We noted a growing body of evidence has demonstrated the oncogenic potential of FGFR aberrations in driving tumor growth, promoting angiogenesis, and conferring resistance mechanisms to anti-cancer therapies. Targeting the FGF/FGFR signaling pathway has therefore attracted attention from biopharmaceutical companies and has become an important exploratory target for new anti-tumor target therapies.

Currently, FGFR monoclonal antibodies, FGF ligand traps and small molecule FGFR tyrosine kinase inhibitors are being evaluated in early clinical studies. BGJ-398 (Novartis), AZD4547 (AstraZeneca) and JNJ-42756493 (Johnson & Johnson) are the leading FGFR selective tyrosine kinase inhibitors, and their early clinical trials provided substantial proof-of-concept with regard to anti-tumor efficacy and pharmacodynamic markers of effective FGFR pathway inhibition.

The main FGFR on-target toxicities observed to date in these compounds are all mild and manageable, including hyperphosphatemia, nail and mucosal disorder, and reversible retinal pigmented epithelial detachment. However, there are still many challenges in the development of FGFR-directed therapies. Uncertainties include the screening and stratifying of patients who are most likely to benefit from FGFR targeted therapy. Intra-tumor heterogeneity observed in FGFR amplified cancer may compromise the anti-tumor activity. In addition, the low frequency of specific FGFR molecular aberrance

in each cancer type may hinder clinical trial enrollment. As a result, there have been no approved therapies specifically targeting the FGFR signaling pathway to date.

HMPL-453 is a potential first-in-class novel, highly selective and potent, small molecule that targets FGFR 1/2/3 with an IC₅₀ in the low nanomolar range. Its good selectivity was revealed in the screening against 292 kinases. HMPL-453 exhibited strong anti-tumor activity that correlated with target inhibition in tumor models with abnormal FGFR activation.

HMPL-453 has good pharmacokinetic properties characterized by rapid absorption following oral dosing, good bioavailability, moderate tissue distribution and moderate clearance in all pre-clinical animal species. HMPL-453 was found to have little inhibitory effect on major cytochrome P450 enzymes, indicating low likelihood of drug-to-drug interaction issues.

In June 2017, we initiated a Phase I/II clinical trial of HMPL-453 in China (NCT03160833). This Phase I/II study is a multi-center, single-arm, open-label, two-stage study to evaluate safety, tolerability, pharmacokinetics and preliminary efficacy of HMPL-453 monotherapy in patients with solid tumors harboring FGFR genetic alterations. The dose-escalation stage will enroll patients with locally advanced or metastatic solid tumors, for whom standard therapy either does not exist or has proven to be ineffective or intolerable, regardless genetic status, to determine the maximum tolerated dose and recommended Phase II dose. The dose-escalation will be followed by a dose-expansion stage, which will further evaluate safety, tolerability and pharmacokinetics as well as preliminary anti-tumor efficacy at the recommended Phase II dose. This stage will enroll primarily cancer patients harboring FGFR dysregulated tumors, including those with advanced bladder cancer, advanced cholangiocarcinoma and other solid tumors. For this second stage, the primary endpoint is objective response rate, with secondary endpoints including duration of response, disease control rate, progression-free survival, overall survival and safety.

We had also initiated a first-in-human Phase I clinical trial in Australia. However, in July 2018, we discontinued the Australian Phase I study due to the emergence of certain serious, though non-life threatening, FGFR target-related toxicities.

Collaborations and joint ventures with corporate partners have provided us with significant funding and access to our partners' scientific, development, regulatory and commercial capabilities. Our current oncology collaborations focus on savolitinib (collaboration with AstraZeneca) and fruquintinib (collaboration with Eli Lilly). We also have a joint venture with Nestlé Health Science, S.A., or Nestlé Health Science, which has been focused on developing drugs for gastrointestinal indications. Our collaboration partners fund a significant portion of our research and development costs for drug candidates developed in collaboration with them. In addition, we receive upfront payments upon our entry into these collaboration arrangements and upon the achievement of certain development milestones for the relevant drug candidate. We and Nutrition Science Partners, in the aggregate, have received upfront payments, equity contributions and milestone payments totaling approximately $158.5 million mainly from our collaborations with AstraZeneca, Eli Lilly, Nestlé Health Science as of December 31, 2018. In return, our collaboration partners are entitled to a significant proportion of any future revenue from our drug candidates developed in collaboration with them, as well as a degree of influence over the clinical development process for such drug candidates.

In December 2011, we entered into an agreement with AstraZeneca under which we granted to AstraZeneca co-exclusive, worldwide rights to develop, and exclusive worldwide rights to manufacture and commercialize savolitinib for all diagnostic, prophylactic and therapeutic uses. We refer to this agreement as the AstraZeneca Agreement. AstraZeneca paid $20.0 million upon execution of the AstraZeneca Agreement and agreed to pay royalties and additional amounts upon the achievement of development and sales milestones. Under the original terms of the AstraZeneca Agreement, we and AstraZeneca agreed to share the development costs for savolitinib in China, with AstraZeneca being responsible for the development costs for savolitinib in the rest of the world. Based on savolitinib showing early clinical benefit as a highly selective c-Met inhibitor in a number of cancers, in August 2016 we and AstraZeneca amended our global licensing, co-development, and commercialization agreement for savolitinib whereby we agreed to contribute up to $50 million, spread primarily over three years, to the joint development costs of the global pivotal Phase III study in patients with c-Met driven papillary renal cell carcinoma. As of December 31, 2018, we had received $24.9 million in milestone payments in addition to approximately $25.2 million in reimbursements for certain development costs. We may potentially receive future clinical development and first sales milestones payments for clinical development and initial sales of savolitinib, plus significant further milestone payments based on sales. AstraZeneca also reimburses us for certain development costs. Subject to approval of savolitinib in papillary renal cell carcinoma, under the amended AstraZeneca Agreement, AstraZeneca is obligated to pay us increased tiered royalties from 14% to 18% annually on all sales made of any product outside of China, which represents a five percentage point increase over the original terms. After total aggregate sales of savolitinib have reached $5 billion, this royalty will step down over a two year period, to an ongoing royalty rate of 10.5% to 14.5%. AstraZeneca is also obligated to pay us a fixed royalty of 30% on all sales made of any product in China.

Development and collaboration under this agreement are overseen by a joint steering committee that is comprised of three of our senior representatives as well as three senior representatives from AstraZeneca. AstraZeneca is responsible for the development of savolitinib and all regulatory matters related to this agreement in all countries and territories other than China, and we are responsible for the development of savolitinib and all regulatory matters related to this agreement in China.

Subject to earlier termination, the AstraZeneca Agreement will continue in full force and effect on a country-by-country basis as long as any collaboration product is being developed or commercialized. The AstraZeneca Agreement is terminable by either party upon a breach that is uncured, upon the occurrence of bankruptcy or insolvency of either party, or by mutual agreement of the parties. The AstraZeneca Agreement may also be terminated by AstraZeneca for convenience with 180 days' prior written notice.

Termination for cause by us or AstraZeneca or for convenience by AstraZeneca will have the effect of, among other things, terminating the applicable licenses granted by us. Termination for convenience by AstraZeneca will have the effect of obligating AstraZeneca to grant to us all of its rights to regulatory approvals and other rights necessary to commercialize savolitinib. Termination by AstraZeneca for convenience will not have the effect of terminating any license granted by AstraZeneca to us.

In October 2013, we entered into an agreement with Eli Lilly whereby we granted Eli Lilly an exclusive license to develop, manufacture and commercialize fruquintinib for all uses in China and Hong Kong. In December 2018, following the commercial launch of fruquintinib in China, we and Eli Lilly amended the terms of the original agreement. We refer to this agreement, including the amendments thereto, as the Eli Lilly Agreement.

Eli Lilly paid a $6.5 million upfront fee following the 2013 execution of the Eli Lilly Agreement, and agreed to pay royalties and additional amounts upon the achievement of development and regulatory approval milestones. As of December 31, 2018, Eli Lilly had paid us $37.2 million in milestone payments in addition to approximately $47.4 million in reimbursements for certain development costs.

We could potentially receive future milestone payments for the achievement of development and regulatory approval milestones in China. Additionally, Eli Lilly is obligated to pay us tiered royalties from 15% to 20% annually on sales made of fruquintinib in China and Hong Kong, the rate to be determined based upon the dollar amount of sales made for all products in that year. Upon the first commercial launch of fruquintinib in China in a new life cycle indication, these tiered royalties will increase to 15% to 29% under the terms of our 2018 amendment.

Development, collaboration and manufacture of products under this agreement are overseen by a joint steering committee comprised of equal numbers of representatives from each party. Under the terms of our 2018 amendment, we are now responsible for all development activities and costs for fruquintinib in China in new life cycle indications, and we have the liberty to collaborate with third-parties to explore combination therapies of fruquintinib with various immunotherapy agents.

Once development is complete, Eli Lilly is obligated to use commercially reasonable efforts to commercialize products and bears all the costs and expenses incurred in such commercialization efforts until the achievement of a non-fruquintinib related Eli Lilly commercial action. If this milestone is achieved, we will be given promotion and distribution rights for fruquintinib in provinces that represent 30% (or 40% if certain additional criteria are met) of sales of fruquintinib in China.

We are responsible in consultation with Eli Lilly for the supply of, and have the right to supply, all clinical and commercial supplies for fruquintinib pursuant to an agreed strategy for manufacturing. For the term of the Eli Lilly Agreement, such supplies will be provided by us at a transfer price that accounts for our cost of goods sold.

The Eli Lilly Agreement is terminable by either party for breach that is uncured. The Eli Lilly Agreement is also terminable by Eli Lilly for convenience with 120 days' prior written notice or if there is a major unexpected safety issue with respect to a product. Termination by either us or Eli Lilly for any reason will have the effect of, among other things, terminating the applicable licenses granted by us, and will obligate Eli Lilly to transfer to us all regulatory materials necessary for us to continue development efforts for fruquintinib.

In connection with the Eli Lilly Agreement, we had entered into an option agreement with Eli Lilly and Company, under which Eli Lilly and Company could choose to include additional countries in the

territory for development and commercialization of fruquintinib. In January 2019, the option agreement expired.

In November 2012, we entered into a joint venture agreement with Nestlé Health Science to form Nutrition Science Partners, a joint venture whose shares are owned in equal portions by us and Nestlé Health Science. The objective of Nutrition Science Partners was to develop, manufacture and commercialize HMPL-004/HM004-6599 for ulcerative colitis and Crohn's Disease and to identify, develop, manufacture and commercialize products in gastrointestinal indications.

In 2018, we and Nestlé Health Science reviewed the status of the HMPL-004/HM004-6599 program and after due consideration of the timeline and further investments required to complete clinical trials and reach the commercialization stage for these drug candidates, we and Nestlé Health Science have decided to explore alternative strategic options such as securing a potential buyer or collaboration partner to further progress HMPL-004 and HM004-6599. However, there is no certainty of an available market or that a suitable buyer or partner can be readily identified. In light of this, Nutrition Science Partners recorded a full impairment provision of its $30.0 million intangible asset in the year ended December 31, 2018. The portion attributable to our company was $15.0 million.

Since 2001, we have also developed a profitable Commercial Platform in China, which encompasses two businesses: our strategically important Prescription Drugs business and our Consumer Health business. Our Commercial Platform has grown strongly and provided an important source of funding for our Innovation Platform since inception. In total, net income attributable to our company from the continuing operations of our Commercial Platform was $70.3 million, $40.0 million and $41.4 million for the years ended December 31, 2016, 2017 and 2018, respectively. Net income attributable to our company from our Commercial Platform included one-time gains of $40.4 million, $2.5 million and nil in the years ended December 31, 2016, 2017 and 2018, respectively, net of tax, from land compensation and other government subsidies paid to Shanghai Hutchison Pharmaceuticals by the Shanghai government.

Additionally, our Commercial Platform has provided us the infrastructure and know-how in operating and marketing pharmaceutical products in the complex and evolving healthcare system in China. The infrastructure of our Commercial Platform, particularly in commercial operations management, manufacturing and distribution, regulatory and reimbursement coverage, is well established in our therapeutic specialty areas such as cardiovascular and central nervous system health. Over the next several years, we will combine the marketing and sales experience and hospital access gained from our Commercial Platform's operations with our growing dedicated oncology-focused sales team to support the launch of products from our Innovation Platform if and when they are approved for use in China. Concurrent with this team expansion, we also plan to increase our manufacturing capacity with a fully integrated active pharmaceutical ingredients or formulation manufacturing facility that is capable of supporting the manufacturing of our current and future commercial-stage oncology drugs.

Our Prescription Drugs division is conducted through the following two joint ventures in which we nominate management and run the day-to-day operations:

Our Prescription Drugs business employs a physician-targeted marketing model that is focused on promoting its products by providing physicians and hospitals with information on the benefits and differentiating clinical aspects of our products. In collaboration with our partners, we have built our joint ventures' extensive prescription drug sales and distribution network across China, with approximately 2,500 medical sales representatives as of December 31, 2018. These medical sales representatives covered over 24,900 hospitals in over 320 cities and towns in China as of December 31, 2018. Approximately 66% of these medical sales representatives cover eastern and central-southern China. Of the remaining medical sale representatives, approximately 25% cover northern China and approximately 9% cover western and south-western China.

Shanghai Hutchison Pharmaceuticals—manufacturing, marketing and distributing proprietary and licensed prescription drugs

Shanghai Hutchison Pharmaceuticals primarily engages in the manufacture and sale of prescription drug products originally contributed by our joint venture partner, as well as third-party prescription drugs with a focus on cardiovascular medicine. Shanghai Hutchison Pharmaceuticals' proprietary products are sold under the "Shang Yao" brand, literally meaning "Shanghai pharmaceuticals," a trademark that has been used for over 40 years in the pharmaceutical retail market, primarily in Eastern China. As of December 31, 2018, Shanghai Hutchison Pharmaceuticals held 74 registered drug licenses in China, of which 31 are included in the National Medicines Catalogue. In addition, 17 of Shanghai Hutchison Pharmaceuticals' products, of which three are in active production, are represented on China's National Essential Medicines List.

Its key product is She Xiang Bao Xin pills, a vasodilator for the long-term treatment of coronary artery and heart disease and for rapid control and prevention of acute angina pectoris, a form of chest pain, which is listed on China's low price drug list, or LPDL, and fully reimbursed in all provinces in China. She Xiang Bao Xin pills' sales represented 85% of all Shanghai Hutchison Pharmaceuticals sales in 2018. There are over one million deaths due to coronary artery disease per year in China, with this number set to rise due to an aging population with high levels of smoking (28% of adults), increasing levels of obesity (30% of adults are overweight) and hypertension (25% of adults). She Xiang Bao Xin pill is the third largest botanical prescription drug in this indication in China, with a market share of 17% nationally and 48% in Shanghai in 2018. The average daily cost of She Xiang Bao Xin pills is RMB4.4, or approximately $0.64.

She Xiang Bao Xin pills were first approved in 1983 and subsequently enjoyed 23 proprietary commercial protections under the prevailing regulatory system in China. In 2005, Shanghai Hutchison Pharmaceuticals was able to attain "Confidential State Secret Technology" status protection, as certified by China's Ministry of Science and Technology and State Secrecy Bureau, which extended proprietary protection in China until late 2016, and it is in the process of renewing this protection. Shanghai Hutchison Pharmaceuticals holds an invention patent in China covering its formulation, which extends proprietary protection through 2029.

Shanghai Hutchison Pharmaceuticals manufactures its products at its GMP-certified 78,000 square meter production facility located in Feng Pu district outside the center of Shanghai. This factory, opened in 2017, has approximately tripled Shanghai Hutchison Pharmaceuticals' capacity relative to its prior factory.

Shanghai Hutchison Pharmaceuticals, through its GSP-certified subsidiary, also markets and sells third-party prescription drugs in collaboration with Hutchison Sinopharm. As discussed below, in early

2015, Hutchison Sinopharm signed an agreement with AstraZeneca to provide marketing services for AstraZeneca's Seroquel (a drug for the treatment of various psychiatric disorders) to market and distribute such drug in China. In connection with Hutchison Sinopharm's agreement with AstraZeneca, Hutchison Sinopharm entered into an agreement with Shanghai Hutchison Pharmaceuticals to provide certain promotion and marketing services within China for this drug. Under this agreement, Shanghai Hutchison Pharmaceuticals manages marketing and is paid a fee for its services provided.

Shanghai Hutchison Pharmaceuticals is the exclusive co-promoter of Merck Serono's bisoprolol fumarate tablets, sold under the Concor trademark, in nine provinces, markets that contain about 600 million people. Concor is the number two beta-blocker in China with an approximately 24% national market share in China's beta-blocker drug market and 63% of China's generic bisoprolol market in 2018. Shanghai Hutchison Pharmaceuticals's cardiovascular medical sales team provides detailing for Concor alongside its She Xiang Bao Xin pills on a fee-for-service basis.

Shanghai Hutchison Pharmaceuticals, through its GSP-certified subsidiary, sells its products and its third-party licensed prescription drugs directly to distributors who on-sell such products to hospitals and clinics, pharmacies and other retail outlets in their respective areas, as well as to other local distributors. In early 2018, as a result of the two-invoice system, Shanghai Hutchison Pharmaceuticals was required to restructure its distribution and logistics network. Prior to the two-invoice system, Shanghai Hutchison Pharmaceuticals employed a group of approximately 200 primary distributors to cover China. These primary distributors in turn used approximately 1,600 secondary distributors to work directly with hospitals, on a local level, to manage logistics and collection. The two-invoice system required Shanghai Hutchison Pharmaceuticals to eliminate one layer of distributors and, as a result, a new system with about 800 primary distributors was established in early 2018 to work directly with hospitals. This included the original 200 primary distributors in addition to about 600 new primary distributors. Shanghai Hutchison Pharmaceuticals' own medical sales representatives promote its products to doctors and purchasing managers in hospitals, clinics and pharmacies as part of its marketing efforts. As of December 31, 2018, Shanghai Hutchison Pharmaceuticals had approximately 2,400 medical sales representatives and about 540 manufacturing employees across China.

Hutchison Sinopharm—providing logistics services and marketing and distribution primarily for prescription drugs manufactured by third parties

In 2014, we commenced operating Hutchison Sinopharm, a consolidated joint venture in collaboration with Sinopharm. Based in Shanghai, Hutchison Sinopharm is a GSP-certified company focused on providing logistics services to, and distributing and marketing prescription drugs manufactured by, third-party pharmaceutical companies in China. Hutchison Sinopharm also distributes certain products from Hutchison Healthcare's Zhi Ling Tong infant nutrition brand. Hutchison Sinopharm also continues to operate its legacy business which was primarily focused on providing logistics and distribution services, primarily within Shanghai, to third-party pharmaceutical companies.

We intend to increasingly focus on expanding Hutchison Sinopharm to operate as a full-service, third-party prescription drug commercialization company in China.

Its primary product is Seroquel. Since 2015, Hutchison Sinopharm has been the exclusive first-tier distributor to distribute and market AstraZeneca's quetiapine tablets, under the Seroquel trademark in China. Seroquel is a first-line antipsychotic medicine for the treatment of schizophrenia and bipolar disorder, which was launched in China in 2001. Seroquel holds a 6% market share in China's approximately $0.9 billion atypical anti-psychotic prescription drug market and 48% of China's generic quetiapine market, primarily as a result of being the first-mover and original patent holder on quetiapine. Seroquel is the only brand in China to have an extended release formulation, which in 2017 was included on China's National Medicines Catalogue, thereby providing us with major competitive advantage over quetiapine generics. Subject to Hutchison Sinopharm's continued delivery of pre-specified annual sales targets, which required 22% sales growth in 2018 and would require approximately 15% sales growth per

year thereafter, we can continue to retain exclusive commercial rights to Seroquel in China until 2025. In June 2018, AstraZeneca sold and licensed its rights to Seroquel to Luye Pharma Group, Ltd., including its rights in China. The terms of our agreement with AstraZeneca were assigned to Luye Pharma Hong Kong Ltd. and remain unchanged following this transaction. We believe that we met the 2018 sales growth targets, but, despite this, we cannot rule out the possibility that Luye may try to take back Seroquel rights in China. We will use all available resources to protect our rights under the current agreement.

As of December 31, 2018, Shanghai Hutchison Pharmaceuticals had a dedicated medical sales team of about 110 people to support Hutchison Sinopharm's commercialization of Seroquel. The new China two-invoice system, explained in more detail below, came into effect in October 2017, at which point the Seroquel operating model began progressively switching to a fee-for-service model.

China has begun implementing a new regulatory two-invoice system on a province-by-province basis. In principle, the purpose of the two-invoice system is to restrict the number of layers in the drug distribution system in China, in order to improve transparency, compliant business conduct and efficiency. The impact to us was that, starting in October 2017, the Seroquel sales model, in which our consolidated revenues historically reflected total gross sales of Seroquel, began shifting to a fee-for-service model. This change reduced the top-line revenue that Hutchison Sinopharm was and will be able to record from sales of Seroquel, as well as many of our other third-party customers. Importantly however, this drop in reported sales will have no material impact on profitability and will have limited impact to our commercial team operations and expansion plans.

In 2018, China enacted another regulatory reform initiative known as the 4+7 Quality Consistency Evaluation bidding process, or 4+7 QCE, in a several cities. The 4+7 QCE initiative is aimed at driving consolidation in the fragmented generic prescription drug market in China. Under this pilot program, major cities bulk-buy certain generic drugs together, forcing companies to bid for contracts and driving down prices. The 4+7 QCE system is expected to gradually expand to cover more cities and drugs over the coming years. In the short term, we expect that the 4+7 QCE system may reduce Hutchison Sinopharm's product portfolio as some of our third-party generic drug partners may fail to win 4+7 QCE bids. In the mid- to long-term, we believe that the 4+7 QCE system will benefit us by allowing increased numbers of innovative drugs to be included in the National Medicines Catalogue. During 2017 and 2018, 32 innovative oncology drugs were added to the National Medicines Catalogue, a trend that we believe could ultimately benefit our Innovation Platform drug candidates.

Our Consumer Health business is a profitable business, focusing primarily on the manufacture, marketing and distribution of over-the-counter pharmaceutical products and other natural and organic consumer products in China. Our Consumer Health products business includes:

Hutchison Baiyunshan—manufacturing, marketing and distributing proprietary over-the-counter pharmaceutical products

Hutchison Baiyunshan primarily engages in the manufacture, marketing and distribution of proprietary over-the-counter pharmaceutical products. Its "Bai Yun Shan" brand is a market-leading household-name, established over 40 years ago and is known by the majority of Chinese consumers. As of December 31, 2018, Hutchison Baiyunshan held 189 registered drug licenses in China, of which 83 are included in the National Medicines Catalogue. In addition, 32 of Hutchison Baiyunshan's products, of which 11 are in active production, are represented on China's National Essential Medicines List. As of the end of 2018, substantially all pharmaceutical products manufactured and sold by Hutchison Baiyunshan in 2018 were capable of being reimbursed under the National Medicines Catalogue.

Hutchison Baiyunshan's key products are two generic over-the-counter therapies both of which are listed on the LPDL:

Hutchison Baiyunshan's products are mainly manufactured in-house at its GMP-certified facilities in Guangzhou, Guangdong province and Bozhou, Anhui province. Third-party contract manufacturers are also used. Hutchison Baiyunshan is also in the process of negotiating the return of its land use rights for the approximately 30,000 square meter unused plot of land in Guangzhou, which has been listed for sale as part of the Guangzhou municipal government's urban redevelopment scheme plan since 2016.

Hutchison Baiyunshan also operates one Chinese good agriculture practice, or GAP, certified cultivation sites through its subsidiaries for growing the herbs used in its over-the-counter products in Heilongjiang province in China. In addition, Hutchison Baiyunshan generates revenue by supplying raw materials produced by its cultivation operations to its collaboration partner, Guangzhou Pharmaceuticals.

Hutchison Baiyunshan sells its products directly to regional distributors across China who on-sell to local distributors, hospitals and clinics, pharmacies and other retailers, and employs its own sales representatives at a local level to market its products and promote over-the-counter sales to retailers.

In September 2017, Hutchison Baiyunshan divested its 60% shareholding in Nanyang Baiyunshan Hutchison Whampoa Guanbao Pharmaceutical Company Limited, a primarily third-party over-the-counter logistics business which we had determind was not strategically important to our business, for consideration approximately equal to its carrying value.

As of December 31, 2018, Hutchison Baiyunshan had approximately 950 sales representatives and about 1,000 manufacturing employees across China.

Hutchison Hain Organic—marketing and distributing Hain Celestial-licensed natural and organic food and personal care products

Hutchison Hain Organic is a joint venture with Hain Celestial, a Nasdaq-listed, natural and organic food and personal care products company. Hutchison Hain Organic distributes a broad range of over 500 imported organic and natural products.

Pursuant to its joint venture agreement, Hutchison Hain Organic has rights to market and distribute Hain Celestial's products within nine Asian territories. We believe the key strategic product for Hutchison

Hain Organic is Earth's Best organic baby products, a leading brand in the United States. Hutchison Hain Organic's other products are distributed to hypermarkets, specialty stores and other retail outlets in Hong Kong, China and across seven other territories in Asia mainly through third-party local distributors, including retail chains owned by affiliates of CK Hutchison.

Hutchison Healthcare—manufacturing, marketing and distributing health supplements

Hutchison Healthcare is our wholly owned subsidiary and is primarily engaged in the manufacture and sale of health supplements. Hutchison Healthcare's major product is Zhi Ling Tong DHA capsules, a health supplement made from algae DHA oil for the promotion of brain and retinal development in babies and young children, which is distributed by Hutchison Sinopharm.

The majority of Hutchison Healthcare's products are contract manufactured at a dedicated and certified manufacturing facility operated by a third party and distributed to hospital pharmacies, specialty stores and drugstore chains.

Hutchison Consumer Products is our wholly owned subsidiary that is primarily engaged in the distribution of third-party consumer products in Asia.

The biotechnology and pharmaceutical industries are highly competitive. While we believe that our highly selective drug candidates, experienced development team and chemistry-focused scientific approach provide us with competitive advantages, we face potential competition from many different sources, including major pharmaceutical, specialty pharmaceutical and biotechnology companies. Any drug candidates that we successfully develop and commercialize will compete with existing drugs and/or new drugs that may become available in the future.

We compete in the segments of the pharmaceutical, biotechnology and other related markets that address inhibition of kinases in cancer and immunological diseases. There are other companies working to develop targeted therapies in the field of kinase inhibition for cancer and immunological diseases. These companies include divisions of large pharmaceutical companies and biotechnology companies of various sizes. We also compete with pharmaceutical and biotechnology companies that develop and market monoclonal antibodies as targeted therapies for the treatment of cancer and immunological diseases.

Many of our competitors, either alone or with their strategic partners, have substantially greater financial, technical and human resources than we do and significantly greater experience in the discovery and development of drug candidates, obtaining regulatory approvals of products and the commercialization of those products. Accordingly, our competitors may be more successful than we may be in obtaining approval for drugs and achieving widespread market acceptance. Our competitors' drugs may be more effective, or more effectively marketed and sold, than any drug we may commercialize and may render our drug candidates obsolete or non-competitive before we can recover the expenses of developing and commercializing any of our drug candidates. We anticipate that we will face intense and increasing competition as new drugs enter the market and advanced technologies become available.

Below is a summary of existing therapies and therapies currently under development that may become available in the future which may compete with each of our eight clinical-stage drug candidates.

While there are currently no approved selective c-Met inhibitors on the market, there are several c-Met inhibitors currently undergoing clinical trials for the treatment of renal cell carcinoma, non-small

cell lung cancer and gastric cancer such as Cabometyx (cabozantinib) (VEGFR/c-Met/Ret inhibitor approved for renal cell carcinoma and in development for non-small cell lung cancer), tepotinib (c-Met inhibitor in development for non-small cell lung cancer), capmatinib (c-Met inhibitor in development for non-small cell lung cancer), telisotuzumab / telisotuzumab vedotin (c-Met inhibitor in development for non-small cell lung cancer), MP0250 (vascular endothelial growth factor A/HGF inhibitor in development for non-small cell lung cancer), glesatinib (c-Met and Axl tyrosine kinase inhibitor in development for non-small cell lung cancer), JNJ-61186372 (VEGFR/c-Met inhibitor in development for non-small cell lung cancer) and AMG 337 (c-Met kinase inhibitor in development for stomach cancer). Xalkori (ALK, ROS1 and c-Met inhibitor marketed for non-small cell lung cancer) is a multi-kinase inhibitor that less selectively inhibits c-Met. Merestinib (MST1R, FLT3, AXL, MERTK, TEK, ROS1, DDR1/2, MKNK1/2 and c-Met inhibitor in development for non-small cell lung cancer) is also a multi-kinase inhibitor.

Approved VEGF inhibitors on the market for the treatment of colorectal cancer include Avastin (anti-VEGF monoclonal antibody), Cyramza (anti-VEGFR2 monoclonal antibody), Stivarga (VEGFR/TIE2 inhibitor) and Zaltrap (ziv-aflibercept) (VEGF inhibitor). Cyramza is approved for the treatment of non-small cell lung cancer and gastric cancer. Avastin approved for non-small cell lung cancer Ofev (nintedanib) is approved for adeno-non-small cell lung cancer in Europe. In addition, Inlyta and Caprelsa (vandetanib) use a similar mechanism of action as the VEGF inhibitors on the market and are currently being studied for the treatment of colorectal cancer. Other VEGFR inhibitors being developed for the treatment of non-small cell lung cancer include anlotinib, apatinib, Cabometyx, Lenvima (lenvatinib), lucitanib and Caprelsa. VEGFR inhibitors being developed for the treatment of gastric cancer include dovitinib, telatinib and Stivarga. In China, apatinib has been approved for the treatment of third-line gastric cancer and anlotinib has been approved for the treatment of third-line non-small cell lung cancer.

Sutent (VEGFR inhibitor) and Afinitor (mTOR inhibitor) have been approved for the treatment of pancreatic neuroendocrine tumors. Somatuline Depot (Lanreotide) is a growth hormone release inhibitor that has been approved for the treatment of gastroenteropancreatic neuroendocrine tumors. Sandostatin (octreotide) is a growth hormone and insulin-like growth factor-1 inhibitor that has also been approved for neuroendocrine tumors. Lutathera (Lu-dotatate), a somatostatin receptor targeting radiotherapy, recently received NDA approval from the FDA for the treatment of somatostatin receptor positive gastroenteropancreatic neuroendocrine tumors. Furthermore, both small molecules and monoclonal antibodies are being developed for the treatment of neuroendocrine tumors. Compounds undergoing development for neuroendocrine tumors include Vargatef (nintedanib, a tyrosine kinase inhibitor), milciclib (tyrosine kinase inhibitor) and Zybrestat (fosbretabulin, a microtubule/tubulin inhibitor being studied for thyroid cancer). Cometriq (an additional brand name for cabozantinib) has been marketed for thyroid cancer and is being studied for neuroendocrine tumors. In addition, Avastin is an anti-VEGF monoclonal antibody being studied for neuroendocrine tumors.

Although no EGFR tyrosine kinase inhibitors have been specifically approved for non-small cell lung cancer with brain metastasis or primary brain tumor, many have been approved for the treatment of non-small cell lung cancer with EGFR activating mutations, including Gilotrif (EGFR/HER2 inhibitor), Iressa, Tarceva, Conmana, Tagrisso and Vizimpro. Moreover, Tagrisso, tesevatinib (EGFR/HER2/VEGFR inhibitor) and AZD3759 (EGFR inhibitor) are in development for the treatment of non-small cell lung cancer with brain metastasis while Alecensa (alectinib, an ALK inhibitor) has already been approved.

Approved EGFR inhibitors on the market include Iressa and Tarceva, although these drugs reach insufficient drug concentrations to suppress wild-type EGFR effectively. In addition, monoclonal antibodies, such as Erbitux, which are approved for the treatment of certain EGFR over-expression tumor types, are less effective for EGFR gene amplified patients. Other small molecule therapies currently being studied for the treatment of esophageal tumors include Gilotrif and Conmana.

There has been extensive research on oral small-molecule Syk inhibitors due to the major unmet medical need in inflammation and oncology. The only small molecule drug candidate targeting Syk specifically has been approved to date is Tavalisse (fostamatinib) for the treatment of chronic immune thrombocytopenia, due to the off-target toxicity as a result of lower kinase selectivity and possibly poor pharmacokinetic properties. GS-9876 is a Syk inhibitor currently in clinical studies for rheumatoid arthritis. Syk inhibitors currently in clinical studies for hematological cancers include entospletinib, cerdulatinib and TAK-659.

Zydelig is a PI3Kd inhibitor that has been approved for the treatment of relapsed follicular lymphoma, small lymphocytic lymphoma as a monotherapy and for the treatment of chronic lymphatic leukemia in combination with Rituxan. Copiktra (duvelisib, PI3K-d/g dual inhibitor) has been approved for relapsed/refractory chronic lymphocytic leukemia/small lymphocytic lymphoma and follicular lymphoma as a monotherapy. Aliqopa (copanlisib, pan-PI3K inhibitor) also has been approved for relapsed follicular lymphoma as a monotherapy. In addition, several drug candidates that inhibit PI3Kd are in clinical development for hematological cancers, including umbralisib, parsaclisib, INCB050465, ACP 319, ME-401 and YY-20394.

In addition, Janus tyrosine kinase, or JAK, inhibitors such as Xeljanz (tofacitinib JAK-3 inhibitor, marketed for rheumatoid arthritis and in development for ulcerative colitis, Crohn's disease and myelofibrosis), Jakafi (ruxolitinib, JAK-1/2 inhibitor, marketed for myelofibrosis and in development for acute myelogenous leukemia), Olumiant (baricitinib, JAK-1/2 inhibitor marketed for rheumatoid arthritis), filgotinib (JAK-1 inhibitor in development for rheumatoid arthritis) and upadacitinib (JAK-1 inhibitor in development for rheumatoid arthritis, Crohn's disease, ulcerative colitis, atopic dermatitis, psoriatic arthritis and axial SpA); Bruton's tyrosine kinase, or BTK, inhibitors such as Imbruvica (ibrutinib), Calquence (acalabrutinib), zanubrutinib and tirabrutinib are marketed or in development for various hematological cancers; and TNFa inhibitors marketed for rheumatoid arthritis, such as Enbrel, Remicade, Humira and Cimzia, are also expected to be potential competitors of HMPL-523 or HMPL-689, where indicated for hematological cancers, if approved.

To date, there are no approved therapies that specifically target the FGFR signaling pathway. Several small molecule FGFR tyrosine kinase inhibitors are in early clinical trials for solid tumors, including AZD4547, infigratinib, rogaratinib, BLU-554, erdafitinib, TAS-120, Debio 1347, INCB054828, E7090, ASP5878, FGF401, PRN1371, ARQ 087 and HH185. Similarly, FGFR specific monoclonal antibodies in development include B-701 and LY3076226.

Our Commercial Platform's Prescription Drugs business competes in the pharmaceutical industry in China, which is highly competitive and is characterized by a number of established, large pharmaceutical companies, as well as some smaller emerging pharmaceutical companies. Our Prescription Drugs business faces competition from other pharmaceutical companies in China engaged in the development, production, marketing or sales of prescription drugs, in particular cardiovascular drugs. The barrier of

entry for the PRC pharmaceutical industry primarily relates to regulatory requirements in connection with the production of pharmaceutical products and new product launches.

The identities of the key competitors with respect to our Prescription Drugs business vary by product, and, in certain cases, different competitors that have greater financial resources than us may elect to focus these resources on developing, importing or in-licensing and marketing products in the PRC that are substitutes for our products and may have broader sales and marketing infrastructure with which to do so.

We believe that we compete primarily on the basis of brand recognition, pricing, sales network, promotion activities, product efficacy, safety and reliability. We believe our continued success will depend on our Prescription Drugs business's capability to: maintain profitability of its core product, She Xiang Bao Xin pills, successfully market and distribute in-licensed products such as Seroquel and Concor, obtain and maintain regulatory approvals, develop drug candidates with market potential, maintain an efficient operational model, apply technologies to production lines, attract and retain talented personnel, maintain high quality standards, and effectively market and promote the products sold by our Prescription Drugs business. Key competitors for She Xiang Bao Xin pills include Tasly Holding (Compound Danshen Dropping Pill) and Shijiazhuang Yiling Pharmaceutical (Tong Xin Luo Capsule). In addition, Hunan Dongting Pharma and Suzhou First Pharma are key competitors to our Prescription Drugs business' in-licensed drug Seroquel.

Our Commercial Platform's Consumer Health business competes in a highly fragmented market in Asia, particularly in our primary market in China. We believe that our Consumer Health business competes primarily on the basis of brand recognition, pricing, sales network, promotion activities, product safety and reliability. We believe our continued success will depend on our Consumer Health business's capability to: maintain profitability of its core products, Fu Fang Dan Shen tablets and Banlangen granules, differentiate its products vis-a-vis those of competitors, successfully market and distribute in-licensed products such as Earth's Best infant formula, maintain an efficient operational model, attract and retain talented personnel, maintain high quality standards, and effectively market and promote the products sold by our Consumer Health business. In China, Fu Fang Dan Shen tablets and Banlangen granules are generic over-the-counter drugs marketed by several manufacturers. Key competitors include Shanghai LeiYunShang Pharmaceutical, Yunnan Baiyao and Beijing Tongrentang in the Fu Fang Dan Shen market, and include Beijing Tongrentang and Guangzhou Xiangxue Pharmaceutical for the Banlangen market.

Our commercial success depends in part on our ability to obtain and maintain proprietary or intellectual property protection for our Innovation Platform's drug candidates, our Commercial Platform's products and other know-how. Our policy is to seek to protect our proprietary and intellectual property position by, among other methods, filing patent applications in various jurisdictions related to our proprietary technology, inventions and improvements that are important to the development and implementation of our business. We also rely on trade secrets, know-how and continuing technological innovation to develop and maintain our proprietary and intellectual property position.

We and our joint ventures file patent applications directed to our Innovation Platform's drug candidates and our Commercial Platform's products in an effort to establish intellectual property positions with regard to new small molecule compounds and/or extracts of natural herbs, their compositions as well as their medical uses in the treatment of diseases. In relation to our Innovation Platform, we also file patent applications directed to crystalline forms, formulations, processes, key intermediates, and secondary uses as clinical trials for our drug candidates evolve. We file such patent applications in major market jurisdictions, including the United States, Europe, Japan and China as well as Argentina, Australia, Brazil, Canada, Chile, Indonesia, Israel, India, South Korea, Mexico, Malaysia, New Zealand, Peru, Philippines,

Singapore, Ukraine and South Africa. We do not currently in-license any patents except to the extent necessary to ensure our drug candidate fruquintinib has freedom to operate as discussed below.

As of December 31, 2018, we had 176 issued patents, including 18 Chinese patents, 20 U.S. patents and nine European patents, 130 patent applications pending in the above major market jurisdictions, and six pending Patent Cooperation Treaty, or PCT, patent applications relating to the drug candidates of our Innovation Platform. The intellectual property portfolios for our most advanced drug candidates are summarized below. Some of these portfolios, such as HMPL-453 and HMPL-689, are in very early stages of development. With respect to most of the pending patent applications covering our drug candidates, prosecution has yet to commence. Prosecution is a lengthy process, during which the scope of the claims initially submitted for examination by the relevant patent office is often significantly narrowed by the time when they issue, if they issue at all. We expect this to be the case for our pending patent applications referred to below.

Savolitinib—The intellectual property portfolio for savolitinib contains two patent families.

The first patent family for savolitinib is directed to novel small molecule compounds as well as methods of treating cancers with such compounds. As of December 31, 2018, we owned 31 patents in this family, including patents in China, the United States, Europe and Japan, and we had 22 patent applications pending in various other jurisdictions. Our European patent is also registered in Hong Kong. Our issued patents will expire in 2030. We are aware that Chinese Patent No. ZL201510906993.3, or the 993 Patent, was granted to Shanghai Xuanchuang Biotechnology Co. Ltd, or Xuanchuang, in September 2018 claiming a crystalline form of savolitinib. To our knowledge Xuanchuang has no track record of developing, researching or manufacturing pharmaceutical products. Moreover, our PRC legal advisor has advised us that there are substantial deficiencies in the 993 Patent, and we believe that the crystalline form of savolitinib is impliedly disclosed in our Chinese patent for savolitinib which was granted in August 2016. An anonymous request for invalidation of the 993 Patent based on lack of inventiveness and novelty was filed with the Patent Reexamination Board of China National Intellectual Property Administration in February 2019. Accordingly, as of the date of the filing of this annual report we believe that the 993 Patent will not present a material obstacle to our further development of savolitinib, although we cannot be certain of the outcome of the invalidation request.

The second patent family was filed in 2018 and is subject to confidential review by the patent authorities. This patent family is co-owned by us and AstraZeneca.

Our collaboration partner AstraZeneca is responsible for maintaining and enforcing the intellectual property portfolio for savolitinib.

Fruquintinib—The intellectual property portfolio for fruquintinib contains three patent families.

The first patent family for fruquintinib is directed to novel small molecule compounds as well as methods of treating tumor angiogenesis-related disorders with such compounds. As of December 31, 2018, we owned three U.S. patents, one Chinese patent and one Taiwanese patent in this family, each of which will expire in 2028. We also owned patents in Europe and 14 other jurisdictions expiring in 2029 and had one patent application pending in Brazil.

The second patent family is directed to crystalline forms of fruquintinib as well as methods of treating tumor angiogenesis-related disorders with such forms. As of December 31, 2018, we had one patent application pending in China in this family, which, if issued, would have an expiration date in 2034. We own one patent in Australia expiring on 2035 and had 22 patent applications pending in other various jurisdictions, including China, the United States, Europe and Taiwan, each of which, if issued, will each have expiration dates in 2035.

The third patent family is directed to the method of preparing one of the critical intermediates used in the manufacturing process of fruquintinib. With respect to this patent family, we have one patent application pending in China, which, if issued, will have an expiration date in 2034.

The fourth patent family was filed in 2018 and is subject to confidential review by the patent authorities.

We also in-license certain freedom-to-operate rights from AstraZeneca, which grant us non-exclusive rights within China and Hong Kong to develop and commercialize pharmaceutical compounds used in fruquintinib which are covered by one of its patents.

Surufatinib—The intellectual property portfolio for surufatinib contains four patent families.

The first patent family for surufatinib is directed to novel small molecule compounds as well as methods of treating tumor angiogenesis-related disorders with such compounds. As of December 31, 2018, in this patent family we owned one Chinese patent expiring in 2027 and 12 patents in various other jurisdictions, including the United States expiring in 2031, and Europe and Japan, each expiring in 2028. As of December 31, 2018, we also had one patent application pending in Brazil.

The second patent family is directed to the crystalline forms of surufatinib as well as methods of treating tumor angiogenesis-related disorders with such forms. As of December 31, 2018, in this patent family we owned two patents in China expiring in 2029 and 2030, respectively, and we owned 14 patents in other countries, including the United States which will expire in 2031 and Europe which will expire in 2030. As of December 31, 2018, we also had two patent applications pending in other jurisdictions.

The third patent family is directed to the formulation of a micronized active pharmaceutical ingredient used in surufatinib as well as methods of treating tumor angiogenesis-related disorders with such formulation. With respect to this patent family, we have 18 patent applications pending in various jurisdictions, including China, the U.S. and Europe.

The fourth patent family is directed to clinical indications of surufatinib. With respect to this patent family, we have a PCT application pending, which was filed in 2016.

HMPL-523 Syk Inhibitor—The intellectual property portfolio for HMPL-523 contains two patent families.

The first patent family is directed to novel small molecule compounds as well as methods of treating cancers, inflammatory diseases, allergic diseases, cell-proliferative diseases, and autoimmune diseases with such compounds. As of December 31, 2018, we owned 19 patents in this family in various jurisdictions, including the United States, China and South Korea, each of which will expire in 2032. As of December 31, 2018, we also had six patent applications in this family pending in other jurisdictions.

The second patent family was filed in 2017 and is subject to confidential review by the patent authorities.

Epitinib—The intellectual property portfolio for epitinib contains three patent families.

The first patent family is directed to novel small molecule compounds as well as methods of treating cancers with such compounds. As of December 31, 2018, we owned patents in China and Taiwan expiring in 2028, one patent in the United States expiring in 2031 and 12 patents in other jurisdictions, including Europe, each expiring in 2029. As of December 31, 2018, we also had two patent applications in this family pending in other jurisdictions.

The second patent family is directed to the salts and solvates of Epitinib and crystalline forms thereof, as well as methods of treating cancers with such forms. As of December 2018, we had one patent application pending in China in this family, which, if issued, would have an expiration date in 2037. We

have also filed PCT and Taiwan patent applications in this family, which, if issued, will each have expiration dates in 2038.

The third patent family was filed in 2017 and is subject to confidential review by the patent authorities.

Theliatinib—The intellectual property portfolio for theliatinib contains four patent families.

The first patent family is directed to novel small molecule compounds as well as methods of treating cancers with such compounds. As of December 31, 2018, we owned 16 patents in this family in various jurisdictions, including China and Japan, each of which will expire in 2031. As of December 31, 2018, we also had three patent applications in this family pending in various jurisdictions. Our Chinese patent was also registered in Hong Kong and Macau.

The second patent family is directed to the crystalline forms of Theilatnib as well as methods of treating cancers with such forms. As of December 31, 2018, we have filed PCT and Taiwan patent applications in this family, which, if issued, will each have expiration dates in 2037.

The third patent family was filed in 2017 and is subject to confidential review by the patent authorities.

The fourth patent family was filed in 2018 and is subject to confidential review by the patent authorities.

HMPL-689—The intellectual property portfolio for HMPL-689 contains two patent families.

The first patent family is directed to novel small molecule compounds as well as uses of such compounds. As of December 31, 2018, we owned four patents in this family in various jurisdictions, including Australia and Japan, each of which will expire in 2035. As of December 31, 2018, we also had 24 patent applications pending in this family in other various jurisdictions.

The second patent family was filed in 2018 and is subject to confidential review by the patent authorities.

HMPL-453—The intellectual property portfolio for HMPL-453 contains patent applications directed to novel small molecule compounds as well as methods of treating cancers with the compounds. As of December 31, 2018, we owned 15 patents in this family in various jurisdictions, including China, Europe, Japan and the United States, each of which will expire in 2034. As of December 31, 2018, we had 18 patent applications pending in other various jurisdictions.

As of December 31, 2018, our Prescription Drugs joint venture Shanghai Hutchison Pharmaceuticals had 49 issued patents and 11 pending patent applications in China, including patents for its key prescription products described below.

She Xiang Bao Xin Pills. As of December 31, 2018, Shanghai Hutchison Pharmaceuticals held an invention patent in China directed to the formulation of the She Xiang Bao Xin pill. Under PRC law, invention patents are granted for new technical innovations with respect to products or processes. Invention patents in China have a maximum term of 20 years. This patent will expire in 2029. The "Confidential State Secret Technology" status protection on the She Xiang Bao Xin pill technology held by Shanghai Hutchison Pharmaceuticals, as certified by China's Ministry of Science and Technology and State Secrecy Bureau, has expired, and as of December 31, 2018, Shanghai Hutchison Pharmaceuticals was in the process of renewing such protection status.

Danning Tablets. As of December 31, 2018, Shanghai Hutchison Pharmaceuticals also held an invention patent in China directed to the formulation of the Danning tablet. This patent will expire in 2027.

Many of the products sold by our Consumer Health Products joint venture Hutchison Baiyunshan, including its Banlangen granules and Fu Fang Dan Shen tablets, are generic, over-the-counter products for which Hutchison Baiyunshan does not hold patents. As of December 31, 2018, Hutchison Baiyunshan had 81 issued patents in China, two PCT patents and one in Australia.

The term of a patent depends upon the laws of the country in which it is issued. In most jurisdictions, a patent term is 20 years from the earliest filing date of a non-provisional patent application. In the United States, a patent's term may be lengthened by patent term adjustment, which compensates a patentee for administrative delays by the USPTO in examining and granting a patent, or may be shortened if a patent is terminally disclaimed over an earlier filed patent. The term of a patent that covers a drug or biological product may also be eligible for patent term extension when FDA approval is granted, provided statutory and regulatory requirements are met. In the future, if and when our drug candidates receive approval by the FDA or other regulatory authorities, we expect to apply for patent term extensions on issued patents covering those drugs, depending upon the length of the clinical trials for each drug and other factors. There can be no assurance that any of our pending patent applications will be issued or that we will benefit from any patent term extension.

As with other pharmaceutical companies, our or our joint ventures' ability to maintain and solidify our proprietary and intellectual property position for our drug candidates or our or their Commercial Platform products and technologies will depend on our or our joint ventures' success in obtaining effective patent claims and enforcing those claims if granted. However, our or our joint ventures' pending patent applications and any patent applications that we or they may in the future file or license from third parties may not result in the issuance of patents. We also cannot predict the breadth of claims that may be allowed or enforced in our or our joint ventures' patents. Any issued patents that we may receive in the future may be challenged, invalidated or circumvented. For example, we cannot be certain of the priority of filing covered by pending third-party patent applications. If third parties prepare and file patent applications in the United States, China or other markets that also claim technology or therapeutics to which we or our joint ventures have rights, we or our joint ventures may have to participate in interference proceedings, which could result in substantial costs to us, even if the eventual outcome is favorable to us, which is highly unpredictable. In addition, because of the extensive time required for clinical development and regulatory review of a drug candidate we may develop, it is possible that, before any of our drug candidates can be commercialized, any related patent may expire or remain in force for only a short period following commercialization, thereby limiting protection such patent would afford the respective product and any competitive advantage such patent may provide.

In addition to patents, we and our joint ventures rely upon unpatented trade secrets and know-how and continuing technological innovation to develop and maintain our or their competitive position. We and our joint ventures seek to protect our proprietary information, in part, by executing confidentiality agreements with our collaborators and scientific advisors, and non-competition, non-solicitation, confidentiality, and invention assignment agreements with our employees and consultants. We and our joint ventures have also executed agreements requiring assignment of inventions with selected scientific advisors and collaborators. The confidentiality agreements we and our joint ventures enter into are designed to protect our or our joint ventures' proprietary information and the agreements or clauses

requiring assignment of inventions to us or our joint ventures, as applicable, are designed to grant us or our joint ventures, as applicable, ownership of technologies that are developed through our or their relationship with the respective counterpart. We cannot guarantee, however, that these agreements will afford us or our joint ventures adequate protection of our or their intellectual property and proprietary information rights.

We conduct our business using trademarks with various forms of the "Hutchison," "Chi-Med" and "China-MediTech" brands, as well as domain names incorporating some or all of these trademarks. In April 2006, we entered into a brand license agreement with Hutchison Whampoa Enterprises Limited, an indirect wholly owned subsidiary of CK Hutchison, pursuant to which we have been granted a non-exclusive, non-transferrable, royalty-free right to use such trademarks, domain names and other intellectual property rights owned by the CK Hutchison group in connection with the operation of our business worldwide. See Item 7.B. "Related Party Transactions—Relationship with CK Hutchison—Intellectual property licensed by the CK Hutchison group" for more details.

In addition, our joint ventures seek trademark protection in China for their Commercial Platform products. As of December 31, 2018, our joint ventures Shanghai Hutchison Pharmaceuticals and Hutchison Baiyunshan owned a total of 188 trademarks in the aggregate related to products sold by them. For example, the name "Shang Yao" is a registered trademark of Shanghai Hutchison Pharmaceuticals in China for certain uses including pharmaceutical preparations. In addition, our joint venture Hutchison Baiyunshan has been granted a royal-free license to use the registered trademark "Bai Yun Shan" for a term equal to its operational period of the joint venture by Guangzhou Baiyunshan.

Raw materials and supplies are ordered based on our or our joint ventures' respective sales plans and reasonable order forecasts and are generally available from our or our joint ventures' own cultivation operations and various third-party suppliers in quantities adequate to meet our needs. While we do experience price fluctuations associated with our raw materials, we have not experienced any material disruptions in the supply of these raw materials in the past. See Item 3.D. "Risk Factors—Our Commercial Platform's principal products involve the cultivation or sourcing of key raw materials including botanical products, and any supply failure or price fluctuations could adversely affect our Commercial Platform's ability to manufacture our products."

If any one of these supply arrangements or agreements were to be terminated or the ability of any one of these suppliers to perform under the applicable agreements were to be materially and adversely affected, we believe that we will be able to locate, qualify and enter into an agreement with a new supplier on a timely basis. We expect that our and our joint ventures' existing manufacturing facilities, and outside sources will allow us to meet near-term manufacturing needs for our commercial products and other drug candidate products that are in clinical trials.

We have our own independent quality control system and devote significant attention to quality control for the designing, manufacturing and testing of our products. We have established a strict quality control system in accordance with NMPA regulations. Our laboratories fully comply with the Chinese GMP guidelines and are staffed with highly educated and skilled technicians to ensure quality of all batches of product release. We monitor in real time our operations throughout the entire production process, from inspection of raw and auxiliary materials, manufacture, delivery of finished products, clinical testing at hospitals, to ethical sales tactics. Our quality assurance team is also responsible for ensuring that we are in compliance with all applicable regulations, standards and internal policies. Our senior

management team is actively involved in setting quality policies and managing internal and external quality performance of our company and our joint ventures, Shanghai Hutchison Pharmaceuticals and Hutchison Baiyunshan.

Hutchison MediPharma (Suzhou) Limited holds a pharmaceutical manufacturing permit issued by its local regulatory authority expiring on December 31, 2020. It also holds a GMP certificate issued by its local regulatory authority expiring on September 16, 2023.

Hutchison Sinopharm holds a GSP certificate issued by its local regulatory authority expiring on October 22, 2019. It also holds a pharmaceutical trading license issued by its local regulatory authority expiring on August 24, 2019.

Shanghai Hutchison Pharmaceuticals holds a pharmaceutical manufacturing permit from its local regulatory authorities expiring on December 31, 2020. Shanghai Hutchison Pharmaceuticals also holds three GMP certificates issued by its local regulatory authority. The three GMP certificates will expire on August 14, 2021, November 16, 2021 and December 3, 2022, respectively.

Shanghai Shangyao Hutchison Whampoa GSP Company Limited, a subsidiary of Shanghai Hutchison Pharmaceuticals, holds a pharmaceutical trading license from its local regulatory authority expiring on December 29, 2019. It also holds a GSP certificate issued by its local regulatory authority expiring on April 21, 2020.

Hutchison Baiyunshan holds a pharmaceutical manufacturing permit issued by its local regulatory authority expiring on December 31, 2020. Hutchison Baiyunshan holds three GMP certificates issued by its local regulatory authority expiring on March 18, 2020, December 21, 2020 and December 11, 2023, respectively.

Hutchison Whampoa Guangzhou Baiyunshan Pharmaceuticals Limited, a subsidiary of Hutchison Baiyunshan, holds a GSP certificate issued by its local regulatory authority expiring on January 15, 2020. It also holds a pharmaceutical trading license issued by its local regulatory authority expiring on November 12, 2019.

Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine (Bozhou) Company Limited, a subsidiary of Hutchison Baiyunshan, holds a GMP certificate issued by its local regulatory authority expiring on January 18, 2022. It also holds a pharmaceutical manufacturing license issued by its local regulatory authority expiring on December 31, 2020.

Hutchison Whampoa Baiyunshan Lai Da Pharmaceutical (Shan Tou) Company Limited, a subsidiary of Hutchison Baiyunshan, holds a GMP certificate issued by its local regulatory authority expiring on February 28, 2021. It also holds a pharmaceutical manufacturing license issued by its local regulatory authority expiring on December 31, 2020.

This section sets forth a summary of the most significant rules and regulations affecting our business activities in China and the United States.

Since China's entry to the World Trade Organization in 2001, the PRC government has made significant efforts to standardize regulations, develop its pharmaceutical regulatory system and strengthen intellectual property protection.

In the PRC, the NMPA is the authority that monitors and supervises the administration of pharmaceutical products and medical appliances and equipment as well as food, health food and cosmetics. The NMPA's predecessor, the State Food and Drug Administration, or the SFDA, was established on August 19, 1998 as an organization under the State Council to assume the responsibilities previously handled by the Ministry of Health of the PRC, or the MOH, the State Pharmaceutical Administration Bureau of the PRC and the State Administration of Traditional Chinese Medicine of the PRC. The NMPA was founded in March 2003 to replace the SFDA.

The MOH is an authority at the ministerial level under the State Council and is primarily responsible for national public health. Following the establishment of the NMPA in 2003, the MOH was put in charge of the overall administration of the national health in the PRC excluding the pharmaceutical industry. In March 2008, the State Council placed the NMPA under the management and supervision of the MOH. The MOH performs a variety of tasks in relation to the health industry such as establishing social medical institutes and producing professional codes of ethics for public medical personnel. The MOH is also responsible for overseas affairs, such as dealings with overseas companies and governments. In 2013, the MOH and the National Population and Family Planning Commission were integrated into the National Health and Family Planning Commission of the PRC, or the NHFPC. On March 17, 2018, the First Session of the Thirteenth National People's Congress approved the State Council Institutional Reform Proposal, according to which the responsibilities of NHFPC and certain other governmental authorities are consolidated into the National Health Commission, or the NHC, and the NHFPC shall no longer be reserved. In addition, NMPA shall be established under the management and supervision of the State Administration for Market Regulation. The responsibilities of the NHC include organizing the formulation of national drug policies, the national essential medicine system and the National Essential Medicines List and drafting the administrative rules for the procurement, distribution and use of national essential medicines.

The PRC government has promulgated several healthcare reform policies and regulations to reform the healthcare system. On March 17, 2009, the Central Committee of the PRC Communist Party and the State Council jointly issued the Guidelines on Strengthening the Reform of Healthcare System. On March 18, 2009, the State Council issued the Implementation Plan for the Recent Priorities of the Healthcare System Reform (2009-2011). On July 22, 2009, the General Office of the State Council issued the Five Main Tasks of Healthcare System Reform in 2009.

Highlights of these healthcare reform policies and regulations include the following:

The PRC Drug Administration Law as promulgated by the Standing Committee of the National People's Congress in 1984 and the Implementing Measures of the PRC Drug Administration Law as promulgated by the MOH in 1989 have laid down the legal framework for the establishment of pharmaceutical manufacturing enterprises, pharmaceutical trading enterprises and for the administration of pharmaceutical products including the development and manufacturing of new drugs and medicinal preparations by medical institutions. The PRC Drug Administration Law also regulates the packaging, trademarks and the advertisements of pharmaceutical products in the PRC.

Certain revisions to the PRC Drug Administration Law took effect on December 1, 2001. They were formulated to strengthen the supervision and administration of pharmaceutical products, and to ensure the quality of pharmaceutical products and the safety of pharmaceutical products for human use. The revised PRC Drug Administration Law applies to entities and individuals engaged in the development, production, trade, application, supervision and administration of pharmaceutical products. It regulates and prescribes a framework for the administration of pharmaceutical manufacturers, pharmaceutical trading companies, and medicinal preparations of medical institutions and the development, research, manufacturing, distribution, packaging, pricing and advertisements of pharmaceutical products.

The PRC Drug Administration Law was later amended on December 28, 2013 and April 24, 2015 by the Standing Committee of the National People's Congress. It provides the basic legal framework for the administration of the production and sale of pharmaceutical products in China and covers the manufacturing, distributing, packaging, pricing and advertising of pharmaceutical products.

According to the PRC Drug Administration Law, no pharmaceutical products may be produced without a pharmaceutical production license. A manufacturer of pharmaceutical products must obtain a pharmaceutical production license from one of NMPA's provincial level branches in order to commence production of pharmaceuticals. Prior to granting such license, the relevant government authority will inspect the manufacturer's production facilities, and decide whether the sanitary conditions, quality assurance system, management structure and equipment within the facilities have met the required standards.

The PRC Drug Administration Implementation Regulations promulgated by the State Council took effect on September 15, 2002 and were later amended on February 6, 2016 to provide detailed implementation regulations for the revised PRC Drug Administration Law.

On July 10, 2007, the NMPA promulgated the Administrative Measures on the Registration of Pharmaceutical Products, or the Registration Measures, which became effective on October 1, 2007. Under the Registration Measures, new medicines generally refer to those medicines that have not yet been marketed in the PRC. In addition, certain marketed medicines may also be treated as new medicines if the type or application method of such medicines has been changed or new therapeutic functions have been added to such medicines. According to the Registration Measures, the approval of new medicines requires the following steps:

Any applicant who is not satisfied with the NMPA's decision to deny an application can appeal within 60 days of its receipt of the NMPA's decision. If the applicant is dissatisfied with the result of the appeal, it may apply for an administrative review with a special committee consisting of senior officials of the NMPA or file an administrative lawsuit with a people's court in China.

Pursuant to the Registration Measures, chemical drugs are categorized into six different registration classes. Class I New Chemical Drug is a new chemical drug that has never been marketed in China or abroad, including (1) crude drugs made by synthesis or semi-synthesis and the preparations thereof; (2) new effective monomer extracted from natural substances or by fermentation and the preparations thereof; (3) optical isomer obtained from existing drugs by chiral separation or synthesis and the preparations thereof; (4) drug with fewer components derived from marketed multi-component drugs; (5) new combination products; and (6) a preparation already marketed in China but with a newly added indication not yet approved in any country. Different application materials are required for each registration category.

In accordance with the Provisions on the Administration of Special Examination and Approval of Registration of New Drugs promulgated by the NMPA, issued and effective on January 7, 2009, an NDA that meets certain requirements as specified below will be handled with priority in the review and approval process, so-called "green-channel" approval. In addition, the applicant is entitled to provide additional materials during the review period besides those requested by the NMPA, and will have access to enhanced communication channels with the NMPA.

Applicants for the registration of the following new drugs are entitled to request priority treatment in review and approval: (i) active ingredients and their preparations extracted from plants, animals and minerals, and newly discovered medical materials and their preparations that have not been sold in the China market, (ii) chemical drugs and their preparations and biological products that have not been approved for sale at its origin country or abroad, (iii) new drugs with obvious clinical treatment advantages for such diseases as AIDS, therioma, and rare diseases, and (iv) new drugs for diseases that have not been treated effectively. Under category (i) or (ii) above, the applicant for drug registration may apply for special examination and approval when applying for the clinical trial of new drugs; under category (iii) or (iv) above, the applicant may only apply for special examination and approval when applying for manufacturing.

In addition, on December 21, 2017, the NMPA released the Opinions on Priority Review and Approval for Encouraging Drug Innovation, which further clarified that a fast track for drug registration will be available to:

It also specified that fast track status would be given to clinical trial applications for drugs with patent expiry within three years and manufacturing authorization applications for drugs with patent expiry within one year. Concurrent applications for new drug clinical trials which are already approved in the United States or European Union are also eligible for fast track NMPA approval.

On August 19, 2009, the NMPA promulgated the Administrative Regulations for Technology Transfer Registration of Drugs to standardize the registration process of drug technology transfer, which includes application for, and evaluation, examination, approval and monitoring of, drug technology transfer. Drug technology transfer refers to the transfer of drug production technology by the owner to a drug manufacturer and the application for drug registration by the transferee according to the provisions in the new regulations. Drug technology transfer includes new drug technology transfer and drug production technology transfer.

Applications for new drug technology transfer may be submitted prior to the expiration date of the monitoring period of the new drugs with respect to:

For drugs with new drug certificates only and not yet in the monitoring period, or drug substances with new drug certificates, applications for new drug technology transfer should be submitted prior to the respective expiration date of the monitoring periods for each drug registration category set forth in the new regulations and after the issue date of the new drug certificates.

Applications for drug technology transfer should be submitted to the provincial food and drug administration. If the transferor and the transferee are located in different provinces, the provincial food and drug administration where the transferor is located should provide examination opinions. The provincial food and drug administration where the transferee is located is responsible for examining application materials for technology transfer and organizing inspections on the production facilities of the transferee. Medical examination institutes are responsible for testing three batches of drug samples.

The Drug Review Center of the NMPA should further review the application materials, provide technical evaluation opinions and form a comprehensive evaluation opinion based on the site inspection reports and the testing results of the samples. The NMPA should determine whether to approve the application according to the comprehensive evaluation opinion of the Drug Review Center of the NMPA. An approval letter of supplementary application and a drug approval number will be issued to qualified applications. An approval letter of clinical trials will be issued when necessary. For rejected applications, a notification letter of the examination opinions will be issued with the reasons for rejection.

To manufacture pharmaceutical products in the PRC, a pharmaceutical manufacturing enterprise must first obtain a Pharmaceutical Manufacturing Permit issued by the relevant pharmaceutical administrative authorities at the provincial level where the enterprise is located. Among other things, such a permit must set forth the permit number, the name, legal representative and registered address of the enterprise, the site and scope of production, issuing institution, date of issuance and effective period.

Each Pharmaceutical Manufacturing Permit issued to a pharmaceutical manufacturing enterprise is effective for a period of five years. The enterprise is required to apply for renewal of such permit within six months prior to its expiry and will be subject to reassessment by the issuing authorities in accordance with then prevailing legal and regulatory requirements for the purposes of such renewal.

In addition to a Pharmaceutical Manufacturing permit, the manufacturing enterprise must also obtain a business license from the administrative bureau of industry and commerce at the local level. The name, legal representative and registered address of the enterprise specified in the business license must be identical to that set forth in the Pharmaceutical Manufacturing Permit.

All pharmaceutical products that are produced in the PRC must bear a registered number issued by the NMPA, with the exception of Chinese herbs and Chinese herbal medicines in soluble form. The medicine manufacturing enterprises must obtain the medicine registration number before manufacturing any medicine.

The World Health Organization encourages the adoption of GMP standards in pharmaceutical production in order to minimize the risks involved in any pharmaceutical production that cannot be eliminated through testing the final products.

The Guidelines on Good Manufacturing Practices, as amended in 1998 and 2010, or the Guidelines, took effect on August 1, 1999 and set the basic standards for the manufacture of pharmaceuticals. These Guidelines cover issues such as the production facilities, the qualification of the personnel at the management level, production plant and facilities, documentation, material packaging and labeling, inspection, production management, sales and return of products and customers' complaints. On October 23, 2003, the NMPA issued the Notice on the Overall Implementation and Supervision of Accreditation of Good Manufacturing Practice Certificates for Pharmaceuticals, which required all pharmaceutical manufacturers to apply for the GMP certificates by June 30, 2004. Those enterprises that failed to obtain the GMP certificates by December 31, 2004 would have their Pharmaceutical Manufacturing Permit revoked by the drug administrative authorities at the provincial level. On October 24, 2007, the NMPA issued Evaluation Standard on Good Manufacturing Practices which became effective on January 1, 2008. The GMP certificate is valid for a specific term and application for renewal must be submitted six months prior to its expiration date.

In May 2016, the State Council announced the piloting of the "marketing authorization holder" system in ten provinces in China, where the market authorization/drug license holders are no longer required to be the actual manufacturers. The "marketing authorization holder" system will allow for more flexibilities in contract manufacturing arrangements.

According to the Registration Measures, with a view to protecting public health, the NMPA may provide for administrative monitoring periods of up to five years for new drugs approved to be manufactured, to continually monitor the safety of those new drugs.

During the monitoring period of a new drug, the NMPA will not approve any other enterprise's application to manufacture, change the dosage of or import a similar new drug. The only exception is that the NMPA will continue to handle any application if, prior to the commencement of the monitoring period, the NMPA has already approved the applicant's clinical trial for a similar new drug. If such application conforms to the relevant provisions, the NMPA may approve such applicant to manufacture or import the similar new drug during the remainder of the monitoring period.

The Administrative Measures Governing the Production Quality of Pharmaceutical Products, or the Administrative Measures for Production, provides detailed guidelines on practices governing the production of pharmaceutical products. A GMP certification certifies that a manufacturer's factory has met certain criteria in the Administrative Measures for Production, which include: institution and staff qualifications, production premises and facilities, equipment, hygiene conditions, production management, quality controls, product operation, maintenance of sales records and manner of handling customer complaints and adverse reaction reports.

According to the Administrative Measures for Certification of the Good Manufacturing Practices, effective on August 2, 2011, a manufacturer of pharmaceutical products shall reapply for a new GMP certification six months prior to its expiration date.

According to the PRC Drug Administration Law and its implementing regulations and the Measures for the Supervision and Administration of Circulation of Pharmaceuticals, a manufacturer of pharmaceutical products in the PRC can only engage in the trading of the pharmaceutical products that the manufacturer has produced itself. In addition, such manufacturer can only sell its products to:

A pharmaceutical manufacturer in the PRC is prohibited from selling its products to end-users, or individuals or entities other than holders of Pharmaceutical Distribution Permits, the Pharmaceutical Manufacturing Permits or the Medical Practice Permits.

The granting of a Pharmaceutical Distribution Permit to wholesalers shall be subject to approval of the provincial level drug regulatory authorities, while the granting of a retailer permit shall be subject to the approval of the drug regulatory authorities above the county level. Unless otherwise expressly approved, no pharmaceutical wholesaler may engage in the retail of pharmaceutical products, and neither may pharmaceutical retailers engage in wholesale.

Operations of pharmaceutical distributors shall be conducted in accordance with the Pharmaceutical Operation Quality Management Rules and shall be granted a GSP certificate under such rules by the NMPA. A GSP certificate is valid for five years and may be renewed three months prior to its expiration date upon a reexamination by the relevant authority.

Pharmaceutical distributors must keep true and complete records of any pharmaceutical products purchased, distributed or sold with the generic name of such products, specification, approval code, term, manufacturer, purchasing or selling party, price and date of purchase or sale. A pharmaceutical distributor must keep such record at least until one year after the expiry date of such products and in any case, such record must be kept for no less than three years. Penalties may be imposed for any violation of record-keeping.

Pharmaceutical distributors can only distribute pharmaceutical products obtained from those with a Pharmaceutical Manufacturing Permit and a Pharmaceutical Distribution Permit.

On December 26, 2016, the Medical Reform Office of the State Council, the National Health and Family Planning Commission, the NMPA and other five government authorities promulgated the "Two-Invoice System" Opinions, which became effective on the same date. On April 25, 2017, the General Office of the State Council further promulgated the Notice on Issuing the Key Working Tasks for Deepening the Reform of Medicine and Health System in 2017. According to these rules, a two-invoice system is encouraged to be gradually adopted for drug procurement. The two-invoice system generally requires a drug manufacturer to issue only one invoice to its distributor followed by the distributor issuing a second invoice directly to the end customer hospital. Only one distributor is permitted to distribute drug products between the manufacturer and the hospital. The system also encourages manufacturers to sell drug products directly to hospitals. Public medical institutions are required to adopt the two-invoice system, and its full implementation nationwide is targeted for 2018. Pharmaceutical manufacturers and distributors who fail to implement the two-invoice system may be disqualified from attending future bidding events or providing distribution for hospitals and blacklisted for drug procurement practices. These rules aim to consolidate drug distribution and reduce drug prices.

The interpretation of certain PRC laws and regulations governing foreign investment and "state secret" technology is uncertain. Depending on the industry sectors, foreign investments are classified as "encouraged", "restricted" or "prohibited" under the Guidance Catalogue of Industries for Foreign Investment, or the Catalogue, published by the MOFCOM and the National Development and Reform Commission, or the NDRC. Under the Catalogue, "manufacturing of modern Chinese medicines with confidential proprietary formula" has been deemed prohibited for any foreign investment. The technology and know-how of the She Xiang Bao Xin pill is classified as "state secret" technology by China's Ministry of Science and Technology, or the MOST, and the National Administration for the Protection of State Secrets, or NAPSS.

There are currently no PRC laws or regulations or official interpretations, and therefore there can be no assurance, as to whether the use of "state secret" technology constitutes the "manufacturing of Chinese medicines with confidential proprietary formula" under the Catalogue. However, under the Rules on Confidentiality of Science and Technology promulgated by the State Science and Technology Commission (the predecessor of the MOST and the NAPSS) on January 6, 1995, cooperation with foreign parties or establishing joint ventures with foreign parties in respect of state secret technology is expressly allowed, provided that such cooperation has been duly approved by the relevant science and technology authorities. The establishment of Shanghai Hutchison Pharmaceuticals as a sino-foreign joint venture, including the re-registration of licenses for She Xiang Bao Xin pills in its name, was approved by the local counterpart of the MOFCOM and the Shanghai Drug Administration in 2001. Subsequently, the "Confidential State

Secret Technology" status protection for She Xiang Bao Xin pills was also granted in 2005 to Shanghai Hutchison Pharmaceuticals as a sino-foreign joint venture by the MOST and NAPSS. Consequently, we believe Shanghai Hutchison Pharmaceuticals is in compliance with all applicable PRC laws and regulations governing foreign investment and "state secret" technology and will continue to be so following our listing of our ADSs on the Nasdaq Global Select Market. Moreover, we believe that our other joint ventures and wholly-foreign owned enterprises in the PRC are also in compliance with all applicable PRC laws and regulations governing foreign investment and will continue to be so following our listing of our ADSs on the Nasdaq Global Select Market.

In the United States, the FDA regulates drugs under the Federal Food, Drug, and Cosmetic Act, or FDCA, and the Public Health Service Act, or PHSA, and their implementing regulations. The process of obtaining approvals and the subsequent compliance with appropriate federal, state and local rules and regulations requires the expenditure of substantial time and financial resources. Failure to comply with the applicable U.S. regulatory requirements at any time during the product development process, approval process or after approval may subject an applicant and/or sponsor to a variety of administrative or judicial sanctions, including refusal by FDA to approve pending applications, withdrawal of an approval, imposition of a clinical hold, issuance of warning letters and other types of enforcement correspondence, product recalls, product seizures, total or partial suspension of production or distribution, withdrawals of approvals, injunctions, fines, refusals of government contracts, restitution, disgorgement of profits, or civil or criminal investigations and penalties brought by FDA and the U.S. Department of Justice, or DOJ, or other governmental entities. Drugs are also subject to other federal, state and local statutes and regulations.

Our drug candidates must be approved by the FDA through the NDA process before they may be legally marketed in the United States. The process required by the FDA before a drug may be marketed in the United States generally involves the following:

The data required to support an NDA is generated in two distinct development stages: pre-clinical and clinical. For new chemical entities, or NCEs, the pre-clinical development stage generally involves synthesizing the active component, developing the formulation and determining the manufacturing process, evaluating purity and stability, as well as carrying out non-human toxicology, pharmacology and drug metabolism studies in the laboratory, which support subsequent clinical testing. The conduct of the pre-clinical tests must comply with federal regulations, including GLPs. The sponsor must submit the results of the pre-clinical tests, together with manufacturing information, analytical data, any available clinical data or literature and a proposed clinical protocol, to the FDA as part of the IND. An IND is a request for authorization from the FDA to administer an investigational drug product to humans. The central focus of an IND submission is on the general investigational plan and the protocol(s) for human trials. The IND automatically becomes effective 30 days after receipt by the FDA, unless the FDA raises concerns or questions regarding the proposed clinical trials and places the IND on clinical hold within that 30-day time period. In such a case, the IND sponsor must resolve with the FDA any outstanding concerns or questions before the clinical trial can begin. Some long-term pre-clinical testing, such as animal tests of reproductive adverse events and carcinogenicity, may continue after the IND is submitted. The FDA may also impose clinical holds on a drug candidate at any time before or during clinical trials due to safety concerns or non-compliance. Accordingly, submission of an IND does not guarantee the FDA will allow clinical trials to begin, or that, once begun, issues will not arise that could cause the trial to be suspended or terminated.

The clinical stage of development involves the administration of the drug product to human subjects or patients under the supervision of qualified investigators, generally physicians not employed by or under the trial sponsor's control, in accordance with GCPs, which include the requirement that, in general, all research subjects provide their informed consent in writing for their participation in any clinical trial. Clinical trials are conducted under written study protocols detailing, among other things, the objectives of the clinical trial, dosing procedures, subject selection and exclusion criteria, and the parameters to be used to monitor subject safety and assess efficacy. Each protocol, and any subsequent amendments to the protocol, must be submitted to the FDA as part of the IND. Further, each clinical trial must be reviewed and approved by each institution at which the clinical trial will be conducted. An IRB is charged with protecting the welfare and rights of trial participants and considers such items as whether the risks to individuals participating in the clinical trials are minimized and are reasonable in relation to anticipated benefits. The IRB also reviews and approves the informed consent form that must be provided to each clinical trial subject or his or her legal representative and must monitor the clinical trial until completed. There are also requirements governing the reporting of ongoing clinical trials and completed clinical trial results to public registries. For example, information about certain clinical trials must be submitted within specific timeframes to the National Institutes of Health for public dissemination on their ClinicalTrials.gov website.

Clinical trials are generally conducted in three sequential phases that may overlap or be combined, known as Phase I, Phase II and Phase III clinical trials.

Progress reports detailing the results of the clinical trials must be submitted at least annually to the FDA, and more frequently if serious adverse events occur. Written IND safety reports must be submitted to the FDA and the investigators for serious and unexpected adverse events or any finding from tests in laboratory animals that suggests a significant risk to human subjects. The FDA, the IRB, or the clinical trial sponsor may suspend or terminate a clinical trial at any time on various grounds, including a finding that the research subjects or patients are being exposed to an unacceptable health risk. The FDA will typically inspect one or more clinical sites to assure compliance with GCPs and the integrity of the clinical data submitted. Similarly, an IRB can suspend or terminate approval of a clinical trial at its institution, or an institution it represents, if the clinical trial is not being conducted in accordance with the IRB's requirements or if the drug has been associated with unexpected serious harm to patients. Additionally, some clinical trials are overseen by an independent group of qualified experts organized by the clinical trial sponsor, known as a data safety monitoring board or committee. This group provides authorization for whether or not a trial may move forward at designated check points based on access to certain data from

the trial. Concurrent with clinical trials, companies usually complete additional animal studies and must also develop additional information about the chemistry and physical characteristics of the drug as well as finalize a process for manufacturing the drug in commercial quantities in accordance with cGMP requirements. The manufacturing process must be capable of consistently producing quality batches of the drug candidate and, among other things, cGMPs impose extensive procedural, substantive and recordkeeping requirements to ensure and preserve the long-term stability and quality of the final drug product. Additionally, appropriate packaging must be selected and tested and stability studies must be conducted to demonstrate that the drug candidate does not undergo unacceptable deterioration over its shelf life.

Following trial completion, trial results and data are analyzed to assess safety and efficacy. The results of pre-clinical studies and clinical trials are then submitted to the FDA as part of an NDA, along with proposed labeling for the drug, information about the manufacturing process and facilities that will be used to ensure drug quality, results of analytical testing conducted on the chemistry of the drug, and other relevant information. The NDA is a request for approval to market the drug and must contain adequate evidence of safety and efficacy, which is demonstrated by extensive pre-clinical and clinical testing. The application includes both negative or ambiguous results of pre-clinical and clinical trials as well as positive findings. Data may come from company-sponsored clinical trials intended to test the safety and efficacy of a use of a drug, or from a number of alternative sources, including studies initiated by investigators. To support regulatory approval, the data submitted must be sufficient in quality and quantity to establish the safety and efficacy of the investigational drug product to the satisfaction of the FDA. Under federal law, the submission of most NDAs is subject to the payment of an application user fees; a waiver of such fees may be obtained under certain limited circumstances. FDA approval of an NDA must be obtained before a drug may be offered for sale in the United States.

In addition, under the Pediatric Research Equity Act of 2003, or PREA, an NDA or supplement to an NDA must contain data to assess the safety and efficacy of the drug for the claimed indications in all relevant pediatric subpopulations and to support dosing and administration for each pediatric subpopulation for which the drug is safe and effective. The FDA may grant deferrals for submission of data or full or partial waivers.

Under the Prescription Drug User Fee Act, or PDUFA, as amended, each NDA must be accompanied by an application user fee. The FDA adjusts the PDUFA user fees on an annual basis. According to the FDA's fee schedule, effective through September 30, 2019, the user fee for an application requiring clinical data, such as an NDA, is $2,588,478. PDUFA also imposes a program fee for prescription human drugs $309,915. Fee waivers or reductions are available in certain circumstances, including a waiver of the application fee for the first application filed by a small business. Additionally, no user fees are assessed on NDAs for products designated as orphan drugs, unless the product also includes a non-orphan indication.

The FDA reviews all NDAs submitted before it accepts them for filing and may request additional information rather than accepting an NDA for filing. The FDA conducts a preliminary review of an NDA within 60 days of receipt and informs the sponsor by the 74th day after FDA's receipt of the submission to determine whether the application is sufficiently complete to permit substantive review. Once the submission is accepted for filing, the FDA begins an in-depth review of the NDA. Under the goals and policies agreed to by the FDA under PDUFA, the FDA has 10 months from the filing date in which to complete its initial review of a standard NDA and respond to the applicant, and six months from the filing date for a "priority review" NDA. The FDA does not always meet its PDUFA goal dates for standard and priority review NDAs, and the review process is often significantly extended by FDA requests for additional information or clarification.

After the NDA submission is accepted for filing, the FDA reviews the NDA to determine, among other things, whether the proposed drug is safe and effective for its intended use, and whether the drug is being manufactured in accordance with cGMP to assure and preserve the drug's identity, strength, quality and purity. The FDA may refer applications for drugs or drug candidates that present difficult questions of safety or efficacy to an advisory committee, typically a panel that includes clinicians and other experts, for review, evaluation and a recommendation as to whether the application should be approved and under what conditions. The FDA is not bound by the recommendations of an advisory committee, but it considers such recommendations carefully when making decisions. The FDA may re-analyze the clinical trial data, which can result in extensive discussions between the FDA and us during the review process.

Before approving an NDA, the FDA will conduct a pre-approval inspection of the manufacturing facilities for the new drug to determine whether they comply with cGMPs. The FDA will not approve the drug unless it determines that the manufacturing processes and facilities are in compliance with cGMP requirements and adequate to assure consistent production of the drug within required specifications. In addition, before approving an NDA, the FDA may also audit data from clinical trials to ensure compliance with GCP requirements. After the FDA evaluates the application, manufacturing process and manufacturing facilities where the drug product and/or its active pharmaceutical ingredient will be produced, it may issue an approval letter or a Complete Response Letter. An approval letter authorizes commercial marketing of the drug with specific prescribing information for specific indications. A Complete Response Letter indicates that the review cycle of the application is complete and the application is not ready for approval. A Complete Response Letter usually describes all of the specific deficiencies in the NDA identified by the FDA. The Complete Response Letter may require additional clinical data and/or an additional pivotal clinical trial(s), and/or other significant, expensive and time-consuming requirements related to clinical trials, pre-clinical studies or manufacturing. If a Complete Response Letter is issued, the applicant may either resubmit the NDA, addressing all of the deficiencies identified in the letter, or withdraw the application. Even if such data and information is submitted, the FDA may ultimately decide that the NDA does not satisfy the criteria for approval. Data obtained from clinical trials are not always conclusive and the FDA may interpret data differently than we interpret the same data.

If a drug receives regulatory approval, the approval may be limited to specific diseases and dosages or the indications for use may otherwise be limited. Further, the FDA may require that certain contraindications, warnings or precautions be included in the drug labeling or may condition the approval of the NDA on other changes to the proposed labeling, development of adequate controls and specifications, or a commitment to conduct post-market testing or clinical trials and surveillance to monitor the effects of approved drugs. For example, the FDA may require Phase 4 testing which involves clinical trials designed to further assess a drug's safety and effectiveness and may require testing and surveillance programs to monitor the safety of approved drugs that have been commercialized. The FDA may also place other conditions on approvals including the requirement for a REMS to ensure that the benefits of a drug or biological product outweigh its risks. If the FDA concludes a REMS is needed, the sponsor of the NDA must submit a proposed REMS. The FDA will not approve the NDA without an approved REMS, if required. A REMS could include medication guides, physician communication plans, or elements to assure safe use, such as restricted distribution methods, patient registries and other risk minimization tools. Any of these limitations on approval or marketing could restrict the commercial promotion, distribution, prescription or dispensing of drugs. Drug approvals may be withdrawn for non-compliance with regulatory standards or if problems occur following initial marketing.

NDAs for most new drug products are based on two full clinical studies which must contain substantial evidence of the safety and efficacy of the proposed new product. These applications are submitted under Section 505(b)(1) of the FDCA. The FDA is, however, authorized to approve an alternative type of NDA

under Section 505(b)(2) of the FDCA, which authorizes FDA to approve an NDA based on safety and effectiveness data that were not developed by the applicant. Section 505(b)(2) allows the applicant to rely, in part, on the FDA's previous findings of safety and efficacy for a similar product, or published literature. Specifically, Section 505(b)(2) applies to NDAs for a drug for which the investigations relied upon to show that the drug is safe and effective for the intended use "were not conducted by or for the applicant and for which the applicant has not obtained a right of reference or use from the person by or for whom the investigations were conducted."

Section 505(b)(2) authorizes NDAs filed under Section 505(b)(2) may provide an alternate and potentially more expeditious pathway to FDA approval for new or improved formulations or new uses of previously approved products. If the 505(b)(2) applicant can establish that reliance on the FDA's previous approval is scientifically appropriate, the applicant may eliminate the need to conduct certain pre-clinical or clinical studies of the new product. The FDA may also require companies to perform additional studies or measurements to support the change from the approved product. The FDA may then approve the new drug candidate for all or some of the label indications for which the referenced product has been approved, as well as for any new indication sought by the Section 505(b)(2) applicant.

In 1984, with passage of the Drug Price Competition and Patent Term Restoration Act of 1984, commonly referred to as the Hatch-Waxman Act, Congress authorized the FDA to approve generic drugs that are the same as drugs previously approved by the FDA under the NDA provisions of the statute. To obtain approval of a generic drug, an applicant must submit an abbreviated new drug application, or ANDA, to the agency. In support of such applications, a generic manufacturer may rely on the pre-clinical and clinical testing previously conducted for a drug product previously approved under an NDA, known as the reference listed drug, or RLD.

Specifically, in order for an ANDA to be approved, the FDA must find that the generic version is identical to the RLD with respect to the active ingredients, the route of administration, the dosage form, and the strength of the drug. At the same time, the FDA must also determine that the generic drug is "bioequivalent" to the innovator drug. Under the statute, a generic drug is bioequivalent to a RLD if "the rate and extent of absorption of the drug do not show a significant difference from the rate and extent of absorption of the listed drug." The Generic Drug User Fee Act (GDUFA), as reauthorized, sets forth performance goals for FDA to review standard ANDA's within 10 months of their submission, and priority ANDA's within 8 months of their submission if they satisfy certain requirements.

Upon approval of an ANDA, the FDA indicates that the generic product is "therapeutically equivalent" to the RLD and it assigns a therapeutic equivalence rating to the approved generic drug in its publication "Approved Drug Products with Therapeutic Equivalence Evaluations," also referred to as the "Orange Book." Physicians and pharmacists consider an "AB" therapeutic equivalence rating to mean that a generic drug is fully substitutable for the RLD. In addition, by operation of certain state laws and numerous health insurance programs, FDA's designation of an "AB" rating often results in substitution of the generic drug without the knowledge or consent of either the prescribing physician or patient.

The FDA has various programs, including Fast Track Designation, accelerated approval, priority review and Breakthrough Therapy Designation, that are intended to expedite or simplify the process for the development and FDA review of drugs that are intended for the treatment of serious or life threatening diseases or conditions and demonstrate the potential to address unmet medical needs. The purpose of these programs is to provide important new drugs to patients earlier than under standard FDA review procedures. While these pathways can reduce the time it takes for the FDA to review an NDA, they do not guarantee that a product will receive FDA approval. In addition, the Right to Try Act of 2018

established a new regulatory pathway to increase access to unapproved, investigational treatments for patients diagnosed with life-threatening diseases or conditions who have exhausted approved treatment options and who are unable to participate in a clinical trial.

To be eligible for a Fast Track Designation, the FDA must determine, based on the request of a sponsor, that a drug is intended to treat a serious or life threatening disease or condition for which there is no effective treatment and demonstrates the potential to address an unmet medical need for the disease or condition. Under the fast track program, the sponsor of a drug candidate may request FDA to designate the product for a specific indication as a fast track product concurrent with or after the filing of the IND for the drug candidate. The FDA must make a fast track designation determination within 60 days after receipt of the sponsor's request.

In addition to other benefits, such as the ability to use surrogate endpoints and have greater interactions with FDA, FDA may initiate review of sections of a fast track product's NDA before the application is complete. This rolling review is available if the applicant provides, and FDA approves, a schedule for the submission of the remaining information and the applicant pays applicable user fees. However, FDA's time period goal for reviewing a fast track application does not begin until the last section of the NDA is submitted. A fast track drug also may be eligible for accelerated approval and priority review. In addition, the fast track designation may be withdrawn by FDA if FDA believes that the designation is no longer supported by data emerging in the clinical trial process.

The FDA may give a priority review designation to drugs that offer major advances in treatment, or provide a treatment where no adequate therapy exists. A priority review means that the goal for the FDA to review an application is six months, rather than the standard review of 10 months under current PDUFA guidelines. These 6- and 10-month review periods are measured from the "filing" date rather than the receipt date for NDAs for new molecular entities, which typically adds approximately two months to the timeline for review and decision from the date of submission. Most products that are eligible for Fast Track Designation are also likely to be considered appropriate to receive a priority review.

Under the provisions of the new Food and Drug Administration Safety and Innovation Act, or FDASIA, enacted by Congress in 2012, a sponsor can request designation of a drug candidate as a "breakthrough therapy," typically by the end of the drug's Phase II trials. A breakthrough therapy is defined as a drug that is intended, alone or in combination with one or more other drugs, to treat a serious or life-threatening disease or condition, and preliminary clinical evidence indicates that the drug may demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints, such as substantial treatment effects observed early in clinical development. Drugs designated as breakthrough therapies are also eligible for accelerated approval. For breakthrough therapies, the FDA may take certain actions, such as intensive and early guidance on the drug development program, that are intended to expedite the development and review of an application for approval.

FDASIA also codified and expanded on FDA's accelerated approval regulations, under which FDA may approve a drug for a serious or life-threatening illness that provides meaningful therapeutic benefit over existing treatments based on a surrogate endpoint that is reasonably likely to predict clinical benefit, or on an intermediate clinical endpoint that can be measured earlier than irreversible morbidity or mortality, that is reasonably likely to predict an effect on irreversible morbidity or mortality or other

clinical benefit. A surrogate endpoint is a marker that does not itself measure clinical benefit but is believed to predict clinical benefit. This determination takes into account the severity, rarity or prevalence of the disease or condition and the availability or lack of alternative treatments. As a condition of approval, the FDA may require a sponsor of a drug receiving accelerated approval to perform Phase 4 or post-marketing studies to verify and describe the predicted effect on irreversible morbidity or mortality or other clinical endpoint, and the drug may be subject to accelerated withdrawal procedures. All promotional materials for drug candidates approved under accelerated regulations are subject to prior review by the FDA.

Even if a product qualifies for one or more of these programs, the FDA may later decide that the product no longer meets the conditions for qualification or decide that the time period for FDA review or approval will not be shortened. Furthermore, Fast Track Designation, priority review, accelerated approval and Breakthrough Therapy Designation, do not change the standards for approval and may not ultimately expedite the development or approval process.

Under PREA, an NDA or supplement thereto must contain data that are adequate to assess the safety and effectiveness of the drug product for the claimed indications in all relevant pediatric subpopulations, and to support dosing and administration for each pediatric subpopulation for which the product is safe and effective. With the enactment of FDASIA, a sponsor who is planning to submit a marketing application for a drug that includes a new active ingredient, new indication, new dosage form, new dosing regimen or new route of administration must also submit an initial Pediatric Study Plan, or PSP, within sixty days of an end-of-Phase II meeting or as may be agreed between the sponsor and FDA. The initial PSP must include an outline of the pediatric study or studies that the sponsor plans to conduct, including study objectives and design, age groups, relevant endpoints and statistical approach, or a justification for not including such detailed information, and any request for a deferral of pediatric assessments or a full or partial waiver of the requirement to provide data from pediatric studies along with supporting information. FDA and the sponsor must reach agreement on the PSP. A sponsor can submit amendments to an agreed-upon initial PSP at any time if changes to the pediatric plan need to be considered based on data collected from pre-clinical studies, early phase clinical trials, and/or other clinical development programs. The law requires the FDA to send a non-compliance letters to sponsors who do not submit their pediatric assessments as required.

Under the Best Pharmaceuticals for Children Act, or BPCA, certain therapeutic candidates may obtain an additional six months of exclusivity if the sponsor submits information requested by the FDA, relating to the use of the active moiety of the product candidate in children. Although the FDA may issue a written request for studies on either approved or unapproved indications, it may only do so where it determines that information relating to that use of a product candidate in a pediatric population, or part of the pediatric population, may produce health benefits in that population.

FDASIA permanently reauthorized PREA and BPCA, modifying some of the requirements under these laws, and established priority review vouchers for rare pediatric diseases.

Under the Orphan Drug Act, FDA may designate a drug product as an "orphan drug" if it is intended to treat a rare disease or condition (generally meaning that it affects fewer than 200,000 individuals in the United States, or more in cases in which there is no reasonable expectation that the cost of developing and making a drug product available in the United States for treatment of the disease or condition will be recovered from sales of the product). A company must request orphan product designation before submitting an NDA. If the request is granted, FDA will disclose the identity of the therapeutic agent and its potential use. Orphan product designation does not convey any advantage in or shorten the duration of

the regulatory review and approval process, but the product will be entitled to orphan product exclusivity, meaning that FDA may not approve any other applications for the same product for the same indication for seven years, except in certain limited circumstances. Competitors may receive approval of different products for the indication for which the orphan product has exclusivity and may obtain approval for the same product but for a different indication. If a drug or drug product designated as an orphan product ultimately receives regulatory approval for an indication broader than what was designated in its orphan product application, it may not be entitled to exclusivity. The 21st Century Cures Act, which became law in December 2016, expanded the types of studies that qualify for orphan drug grants. Orphan drug designation also may qualify an applicant for federal tax credits relating to research and development costs.

Following approval of a new drug, a pharmaceutical company and the approved drug are subject to continuing regulation by the FDA, including, among other things, monitoring and recordkeeping activities, reporting to the applicable regulatory authorities of adverse experiences with the drug, providing the regulatory authorities with updated safety and efficacy information, drug sampling and distribution requirements, and complying with applicable promotion and advertising requirements.

Prescription drug advertising is subject to federal, state and foreign regulations. In the United States, the FDA regulates prescription drug promotion, including standards for direct-to-consumer advertising, restrictions on promoting drugs for uses or in patient populations that are not described in the drug's approved labeling (known as "off-label use"), limitations on industry-sponsored scientific and educational activities, and requirements for promotional activities involving the internet. Although physicians may legally prescribe drugs for off-label uses, manufacturers may not market or promote such off-label uses. Prescription drug promotional materials must be submitted to the FDA in conjunction with their first use. Modifications or enhancements to the drug or its labeling or changes of the site of manufacture are often subject to the approval of the FDA and other regulators, which may or may not be received or may result in a lengthy review process. Any distribution of prescription drugs and pharmaceutical samples also must comply with the U.S. Prescription Drug Marketing Act a part of the FDCA.

In the United States, once a drug is approved, its manufacture is subject to comprehensive and continuing regulation by the FDA. The FDA regulations require that drugs be manufactured in specific approved facilities and in accordance with cGMP. Applicants may also rely on third parties for the production of clinical and commercial quantities of drugs, and these third parties must operate in accordance with cGMP regulations. cGMP regulations require among other things, quality control and quality assurance as well as the corresponding maintenance of records and documentation and the obligation to investigate and correct any deviations from cGMP. Drug manufacturers and other entities involved in the manufacture and distribution of approved drugs are required to register their establishments with the FDA and certain state agencies, and are subject to periodic unannounced inspections by the FDA and certain state agencies for compliance with cGMP and other laws. Accordingly, manufacturers must continue to expend time, money, and effort in the area of production and quality control to maintain cGMP compliance. These regulations also impose certain organizational, procedural and documentation requirements with respect to manufacturing and quality assurance activities. NDA holders using third-party contract manufacturers, laboratories or packagers are responsible for the selection and monitoring of qualified firms, and, in certain circumstances, qualified suppliers to these firms. These firms and, where applicable, their suppliers are subject to inspections by the FDA at any time, and the discovery of violative conditions, including failure to conform to cGMP, could result in enforcement actions that interrupt the operation of any such facilities or the ability to distribute drugs manufactured, processed or tested by them. Discovery of problems with a drug after approval may result in restrictions on a drug, manufacturer, or holder of an approved NDA, including, among other things, recall or withdrawal of the drug from the market, and may require substantial resources to correct.

The FDA also may require post-approval testing, sometimes referred to as Phase 4 testing, risk minimization action plans and post-marketing surveillance to monitor the effects of an approved drug or place conditions on an approval that could restrict the distribution or use of the drug. Discovery of previously unknown problems with a drug or the failure to comply with applicable FDA requirements can have negative consequences, including adverse publicity, judicial or administrative enforcement, warning letters from the FDA, mandated corrective advertising or communications with doctors, and civil or criminal penalties, among others. Newly discovered or developed safety or effectiveness data may require changes to a drug's approved labeling, including the addition of new warnings and contraindications, and also may require the implementation of other risk management measures. Also, new government requirements, including those resulting from new legislation, may be established, or the FDA's policies may change, which could delay or prevent regulatory approval of our drugs under development.

Manufacturing, sales, promotion and other activities following drug approval are also subject to regulation by numerous regulatory authorities in addition to the FDA, including, in the United States, the Centers for Medicare & Medicaid Services, other divisions of the Department of Health and Human Services, the Drug Enforcement Administration for controlled substances, the Consumer Product Safety Commission, the Federal Trade Commission, the Occupational Safety & Health Administration, the Environmental Protection Agency and state and local governments. In the United States, sales, marketing and scientific/educational programs must also comply with state and federal fraud and abuse laws. Pricing and rebate programs must comply with the Medicaid rebate requirements of the U.S. Omnibus Budget Reconciliation Act of 1990 and more recent requirements in the Affordable Care Act. If drugs are made available to authorized users of the Federal Supply Schedule of the General Services Administration, additional laws and requirements apply. The handling of any controlled substances must comply with the U.S. Controlled Substances Act and Controlled Substances Import and Export Act. Drugs must meet applicable child-resistant packaging requirements under the U.S. Poison Prevention Packaging Act. Manufacturing, sales, promotion and other activities are also potentially subject to federal and state consumer protection and unfair competition laws.

The distribution of pharmaceutical drugs is subject to additional requirements and regulations, including extensive record-keeping, licensing, storage and security requirements intended to prevent the unauthorized sale of pharmaceutical drugs.

The failure to comply with regulatory requirements subjects firms to possible legal or regulatory action. Depending on the circumstances, failure to meet applicable regulatory requirements can result in criminal prosecution, fines or other penalties, injunctions, recall or seizure of drugs, total or partial suspension of production, denial or withdrawal of product approvals, or refusal to allow a firm to enter into supply contracts, including government contracts. In addition, even if a firm complies with FDA and other requirements, new information regarding the safety or efficacy of a product could lead the FDA to modify or withdraw product approval. Prohibitions or restrictions on sales or withdrawal of future products marketed by us could materially affect our business in an adverse way.

Changes in regulations, statutes or the interpretation of existing regulations could impact our business in the future by requiring, for example: (i) changes to our manufacturing arrangements; (ii) additions or modifications to product labeling; (iii) the recall or discontinuation of our products; or (iv) additional record-keeping requirements. If any such changes were to be imposed, they could adversely affect the operation of our business.

Depending upon the timing, duration and specifics of the FDA approval of our drug candidates, some of our U.S. patents may be eligible for limited patent term extension under the Hatch-Waxman Act. The Hatch-Waxman Act permits a patent restoration term of up to five years as compensation for patent term lost during product development and the FDA regulatory review process. However, patent term

restoration cannot extend the remaining term of a patent beyond a total of 14 years from the product's approval date. The patent term restoration period is generally one-half the time between the effective date of an IND and the submission date of an NDA plus the time between the submission date of an NDA and the approval of that application. Only one patent applicable to an approved drug is eligible for the extension and the application for the extension must be submitted prior to the expiration of the patent. The USPTO, in consultation with the FDA, reviews and approves the application for any patent term extension or restoration. In 2018, the FDA advanced policies aimed at promoting drug competition and patient access to generic drugs, such as issuing guidance about making complex generic drugs and the circumstances in which approval of a generic product application may be delayed.

Marketing exclusivity provisions under the FDCA can also delay the submission or the approval of certain marketing applications. The FDCA provides a five-year period of non-patent marketing exclusivity within the United States to the first applicant to obtain approval of an NDA for a NCE. A drug is a NCE if the FDA has not previously approved any other new drug containing the same active moiety, which is the molecule or ion responsible for the action of the drug substance. During the exclusivity period, the FDA may not accept for review an ANDA, or a 505(b)(2) NDA submitted by another company for another drug based on the same active moiety, regardless of whether the drug is intended for the same indication as the original innovator drug or for another indication, where the applicant does not own or have a legal right of reference to all the data required for approval. However, an application may be submitted after four years if it contains a certification of patent invalidity or non-infringement to one of the patents listed with the FDA by the innovator NDA holder. Specifically, the applicant must certify with respect to each relevant patent that: the required patent information has not been filed; the listed patent has expired; the listed patent has not expired, but will expire on a particular date and approval is sought after patent expiration, or the listed patent is invalid, unenforceable or will not be infringed by the new product. A certification that the new product will not infringe the already approved product's listed patents or that such patents are invalid or unenforceable is called a Paragraph IV certification. If the applicant does not challenge the listed patents or indicate that it is not seeking approval of a patented method of use, the ANDA application will not be approved until all the listed patents claiming the referenced product have expired. If the ANDA applicant has provided a Paragraph IV certification to the FDA, the applicant must also send notice of the Paragraph IV certification to the NDA and patent holders once the ANDA has been accepted for filing by the FDA. The NDA and patent holders may then initiate a patent infringement lawsuit in response to the notice of the Paragraph IV certification. The filing of a patent infringement lawsuit within 45 days after the receipt of a Paragraph IV certification automatically prevents the FDA from approving the ANDA until the earlier of 30 months after the receipt of the Paragraph IV notice, expiration of the patent, or a decision in the infringement case that is favorable to the ANDA applicant. To the extent that the Section 505(b)(2) applicant relies on prior FDA findings of safety and efficacy, the applicant is required to certify to the FDA concerning any patents listed for the previously approved product in the Orange Book to the same extent that an ANDA applicant would.

The FDCA also provides three years of marketing exclusivity for an NDA, or supplement to an existing NDA if new clinical investigations, other than bioavailability studies, that were conducted or sponsored by the applicant are deemed by the FDA to be essential to the approval of the application, for example new indications, dosages or strengths of an existing drug. This three-year exclusivity covers only the modification for which the drug received approval on the basis of the new clinical investigations and does not prohibit the FDA from approving ANDAs for drugs containing the active agent for the original indication or condition of use. Five-year and three-year exclusivity will not delay the submission or approval of a full NDA. However, an applicant submitting a full NDA would be required to conduct or obtain a right of reference to all of the pre-clinical studies and adequate and well-controlled clinical trials necessary to demonstrate safety and effectiveness. Orphan drug exclusivity, as described above, may offer a seven-year period of marketing exclusivity, except in certain circumstances. Pediatric exclusivity is another type of regulatory market exclusivity in the United States. Pediatric exclusivity, if granted, adds six months to existing exclusivity periods and patent terms. This six-month exclusivity, which runs from the end of other exclusivity protection or patent term, may be granted based on the voluntary completion of a pediatric trial in accordance with an FDA-issued "Written Request" for such a trial.

Rest of the World Regulation of Pharmaceutical Product Development and Approval

For other countries outside of China and the United States, such as countries in Europe, Latin America or other parts of Asia, the requirements governing the conduct of clinical trials, drug licensing, pricing and reimbursement vary from country to country. In all cases the clinical trials must be conducted in accordance with GCP requirements and the applicable regulatory requirements and ethical principles.

If we fail to comply with applicable foreign regulatory requirements, we may be subject to, among other things, fines, suspension or withdrawal of regulatory approvals, product recalls, seizure of products, operating restrictions and criminal prosecution.

Historically, most of Chinese healthcare costs have been borne by patients out-of-pocket, which has limited the growth of more expensive pharmaceutical products. However, in recent years the number of people covered by government and private insurance has increased. According to the PRC National Bureau of Statistics, as of December 31, 2017, approximately 1.2 billion employees and residents in China were enrolled in the national medical insurance program, representing an increase of 432.7 million from December 31, 2016. The PRC government has announced a plan to give every person in China access to basic healthcare by year 2020.

The National Medical Insurance Program was adopted pursuant to the Decision of the State Council on the Establishment of the Urban Employee Basic Medical Insurance Program issued by the State Council on December 14, 1998, under which all employers in urban cities are required to enroll their employees in the basic medical insurance program and the insurance premium is jointly contributed by the employers and employees. The State Council promulgated Guiding Opinions of the State Council about the Pilot Urban Resident Basic Medical Insurance on July 10, 2007, under which urban residents of the pilot district, rather than urban employees, may voluntarily join Urban Resident Basic Medical Insurance. The State Council expects the Pilot Urban Resident Basic Medical Insurance to cover the whole nation by 2010.

Participants of the National Medical Insurance Program and their employers, if any, are required to contribute to the payment of insurance premiums on a monthly basis. Program participants are eligible for full or partial reimbursement of the cost of medicines included in the National Medicines Catalogue. The Notice Regarding the Tentative Measures for the Administration of the Scope of Medical Insurance Coverage for Pharmaceutical Products for Urban Employees, jointly issued by several authorities including the Ministry of Labor and Social Security and the MOF, among others, on May 12, 1999, provides that a pharmaceutical product listed in the National Medicines Catalogue must be clinically needed, safe, effective, reasonably priced, easy to use, available in sufficient quantity, and must meet the following requirements:

Factors that affect the inclusion of a pharmaceutical product in the National Medicines Catalogue include whether the product is consumed in large volumes and commonly prescribed for clinical use in the PRC and whether it is considered to be important in meeting the basic healthcare needs of the general public.

The PRC Ministry of Labor and Social Security, together with other government authorities, has the power to determine the medicines included in the National Medicines Catalogue, which is divided into two parts, Part A and Part B. Provincial governments are required to include all Part A medicines listed on the National Medicines Catalogue in their provincial National Medicines Catalogue, but have the discretion to adjust upwards or downwards by no more than 15% from the number of Part B medicines listed in the National Medicines Catalogue. As a result, the contents of Part B of the provincial National Medicines Catalogues may differ from region to region in the PRC.

Patients purchasing medicines included in Part A of the National Medicines Catalogue are entitled to reimbursement of the entire amount of the purchase price. Patients purchasing medicines included in Part B of the National Medicines Catalogue are required to pay a certain percentage of the purchase price and obtain reimbursement for the remainder of the purchase price. The percentage of reimbursement for Part B medicines differs from region to region in the PRC.

The total amount of reimbursement for the cost of medicines, in addition to other medical expenses, for an individual participant under the National Medical Insurance Program in a calendar year is capped at the amounts in such participant's individual account under such program. The amount in a participant's account varies, depending on the amount of contributions from the participant and his or her employer.

On August 18, 2009, MOH and eight other ministries and commissions in the PRC issued the Provisional Measures on the Administration of the National Essential Medicines List, which was later amended in 2015, and the Guidelines on the Implementation of the Establishment of the National Essential Medicines System, which aim to promote essential medicines sold to consumers at fair prices in the PRC and ensure that the general public in the PRC has equal access to the drugs contained in the National Essential Medicines List. MOH promulgated the National Essential Medicines List (Catalog for the Basic Healthcare Institutions) on August 18, 2009, and promulgated the revised National Essential Medicines List on March 13, 2013 and September 30, 2018. According to these regulations, basic healthcare institutions funded by government, which primarily include county-level hospitals, county-level Chinese medicine hospitals, rural clinics and community clinics, shall store up and use drugs listed in the National Essential Medicines List. The drugs listed in National Essential Medicines List shall be purchased by centralized tender process and shall be subject to the price control by the NDRC. Remedial drugs in the National Essential Medicines List are all listed in the National Medicines Catalogue and the entire amount of the purchase price of such drugs is entitled to reimbursement.

According to the Pharmaceutical Administration Law and the Regulations of Implementation of the Law of the People's Republic of China on the Administration of Pharmaceuticals, pharmaceutical products are subject to fixed or directive pricing system or to be adjusted by the market. Those pharmaceutical products included in the National Medicines Catalogues and the National Essential Medicines List and those drugs the production or trading of which are deemed to constitute monopolies, are subject to price controls by the PRC government in the form of fixed retail prices or maximum retail prices. Manufacturers and distributors cannot set the actual retail price for any given price controlled product above the maximum retail price or deviate from the fixed retail price set by the government. The retail prices of pharmaceutical products that are subject to price controls are administered by the NDRC and provincial and regional price control authorities. From time to time, the NDRC publishes and updates a list of pharmaceutical products that are subject to price controls. According to the Notice Regarding Measures on Government Pricing of Pharmaceutical Products issued by NDRC effective on December 25, 2000, maximum retail prices for pharmaceutical products shall be determined based on a variety of factors, including production costs, the profit margins that the relevant government authorities deem reasonable, the product's type, and quality, as well as the prices of substitute pharmaceutical products.

Further, pursuant to the Notice Regarding Further Improvement of the Order of Market Price of Pharmaceutical Products and Medical Services jointly promulgated by the NDRC, the State Council Legislative Affairs Office and the State Council Office for Rectifying, the MOH, the NMPA, the MOFCOM, the MOF and Ministry of Labor and Social Security on May 19, 2006, the PRC government exercises price control over pharmaceutical products included in the National Medicines Catalogues and made an overall adjustment of their prices by reducing the retail price of certain overpriced pharmaceutical products and increasing the retail price of certain underpriced pharmaceutical products in demand for clinical use but that have not been produced in large quantities by manufacturers due to their low retail price level. In particular, the retail price charged by hospitals at the county level or above may not exceed 115% of the procurement cost of the relevant pharmaceutical products or 125% for Chinese herbal pieces.

On February 9, 2015, the General Office of the State Council issued the Guiding Opinion on Enhancing Consolidated Procurement of Pharmaceutical Products by Public Hospitals, or the Opinion. The Opinion encourages public hospitals to consolidate their demands and to play a more active role in the procurement of pharmaceutical products. Hospitals are encouraged to directly settle the prices of pharmaceutical products with manufacturers. Consolidated procurement of pharmaceutical products should facilitate hospital reform, reduce patient costs, prevent corrupt conducts, promote fair competition and induce the healthy growth of the pharmaceutical industry. According to the Opinion, provincial tendering processes will continue to be used for the pricing of essential drugs and generic drugs with significant demands, and transparent multi-party price negotiation will be used for some patented drugs and exclusive drugs.

On April 26, 2014, the NDRC issued the Notice on Issues concerning Improving the Price Control of Low Price Drugs, or the Low Price Drugs Notice, together with the LPDL. According to the Low Price Drugs Notice, for drugs with relatively low average daily costs within the current government-guided pricing scope (low price drugs), the maximum retail prices set by the government were cancelled. Within the standards of average daily costs, the specific purchase and sale prices are fixed by the producers and operators based on the drug production costs, market supply and demand and market competition. The standards of average daily costs of low price drugs are determined by the NDRC in consideration of the drug production costs, market supply and demand and other factors and based on the current maximum retail prices set by the government (or the national average bid-winning retail prices where the government does not set the maximum retail prices) and the average daily dose calculated according to the package insert. Under the Low Price Drugs Notice, the current standards for the daily cost of low price chemical pharmaceuticals and of low price traditional Chinese medicine pharmaceuticals are less than RMB3.0 ($0.44) per day and RMB5.0 ($0.73) per day respectively.

On May 4, 2015, the NDRC, the National Health and Family Planning Commission, the NMPA, MOFCOM and three other departments issued Opinions on Promoting Drug Pricing Reform. Under these opinions, beginning on June 1, 2015, the restrictions on the prices of the drugs that were subject to government pricing were cancelled except for narcotic drugs and Class I psychotropic drugs which are still subject to maximum factory prices and maximum retail prices set by the NDRC. The medical insurance regulatory authority now has the power to prescribe the standards, procedures, basis and methods of the payment for drugs paid by medical insurance funds. The prices of patented drugs are set through transparent and public negotiation among multiple parties. The prices for blood products not listed in the National Medicines Catalogue, immunity and prevention drugs that are purchased by the Chinese government in a centralized manner, and AIDS antiviral drugs and contraceptives provided by the Chinese government for free, are set through a tendering process. Except as otherwise mentioned above, the prices for other drugs may be determined by the manufacturers and the operators on their own on the basis of production or operation costs and market supply and demand.

The Guiding Opinions concerning the Urban Medical and Health System Reform, promulgated on February 21, 2000, aim to provide medical services with reasonable price and quality to the public through the establishment of an urban medical and health system. One of the measures used to realize this aim is the regulation of the purchasing process of pharmaceutical products by medical institutions. Accordingly, the MOH and other relevant government authorities have promulgated a series of regulations and releases in order to implement the tender requirements.

According to the Notice on Issuing Certain Regulations on the Trial Implementation of Centralized Tender Procurement of Drugs by Medical Institutions promulgated on July 7, 2000 and the Notice on Further Improvement on the Implementation of Centralized Tender Procurement of Drugs by Medical Institutions promulgated on August 8, 2001, medical institutions established by county or higher level government are required to implement centralized tender procurement of drugs.

The MOH promulgated the Working Regulations of Medical Institutions for Procurement of Drugs by Centralized Tender and Price Negotiations (for Trial Implementation), or the Centralized Procurement Regulations, on March 13, 2002, and promulgated Sample Document for Medical Institutions for Procurement of Drugs by Centralized Tender and Price Negotiations (for Trial Implementation), or the Centralized Tender Sample Document in November 2001, as amended in 2010, to implement the tender process requirements and ensure the requirements are followed uniformly throughout the country. The Centralized Tender Regulations and the Centralized Tender Sample Document provide rules for the tender process and negotiations of the prices of drugs, operational procedures, a code of conduct and standards or measures of evaluating bids and negotiating prices. On January 17, 2009, the MOH, the NMPA and other four national departments jointly promulgated the Opinions on Further Regulating Centralized Procurement of Drugs by Medical Institutions. According to the notice, public medical institutions owned by the government at the county level or higher or owned by state-owned enterprises (including state-controlled enterprises) shall purchase pharmaceutical products through centralized procurement. Each provincial government shall formulate its catalogue of drugs subject to centralized procurement. Specifically, the procurement could be achieved through public tendering, online bidding, centralized price negotiations and online competition platform. Except for drugs in the National Essential Medicines List (the procurement of which shall comply with the relevant rules on National Essential Medicines List), certain pharmaceutical products which are under the national government's special control and traditional Chinese medicines, in principle, all drugs used by public medical institutions shall be covered by the catalogue of drugs subject to centralized procurement. On July 7, 2010, the MOH and six other ministries and commissions jointly promulgated the Working Regulations of Medical Institutions for Centralized Procurement of Drugs to further regulate the centralized procurement of drugs and clarify the code of conduct of the parties in centralized drug procurement.

The centralized tender process takes the form of public tender operated and organized by provincial or municipal government agencies. The centralized tender process is in principle conducted once every year in all provinces and cities in China. Drug manufacturing enterprises, in principle, shall bid directly for the centralized tender process. Certain related parties, however, may be engaged to act as bidding agencies for the centralized tender process. Such intermediaries are not permitted to engage in the distribution of drugs and must have no conflict of interest with the organizing government agencies. The bids are assessed by a committee composed of pharmaceutical experts who will be randomly selected from a database of experts approved by the relevant government authorities. The committee members assess the bids based on a number of factors, including but not limited to, bid price, product quality, clinical effectiveness, qualifications and reputation of the manufacturer, and after-sale services. Only pharmaceuticals that have won in the centralized tender process may be purchased by public medical institutions funded by government in the relevant region.

On November 15, 2018, China's Joint Procurement Office published its Paper on Centralized Drug Procurement in "4+7 Cities," known as the 4+7 Quality Consistency Evaluation process, or 4+7 QCE. The 4+7 QCE initiative is aimed at driving consolidation in the fragmented generic drug market in China. The 4+7 QCE initiative began as a pilot program in 11 cities: Beijing, Tianjin, Shanghai, Chongqing, Shenyang, Dalian, Xiamen, Guangzhou, Shenzhen, Chengdu and Xi'an. Under this pilot program, the public medical institutions in these 11 cities bulk-buy certain generic drugs together, forcing companies to bid for contracts and driving down prices. The 4+7 QCE initiative is expected to gradually expand to cover more cities and drugs over the coming years.

Successful sales of our products or drug candidates in the U.S. market, if approved, will depend, in part, on the extent to which our drugs will be covered by third-party payors, such as government health programs, commercial insurance and managed healthcare organizations. Patients who are provided with prescriptions as part of their medical treatment generally rely on such third-party payors to reimburse all or part of the costs associated with their prescriptions and therefore adequate coverage and reimbursement from such third-party payors are critical to new product success. These third-party payors are increasingly reducing reimbursements for medical drugs and services. Additionally, the containment of healthcare costs has become a priority of federal and state governments, and the prices of drugs have been a focus in this effort. The U.S. government, state legislatures and foreign governments have shown significant interest in implementing cost-containment programs, including price controls, restrictions on reimbursement and requirements for substitution of generic drugs. Adoption of price controls and cost-containment measures, and adoption of more restrictive policies in jurisdictions with existing controls and measures, could further limit our net revenue and results. Decreases in third-party reimbursement for our drug candidates, if approved, or a decision by a third-party payor to not cover our drug candidates could reduce physician usage of such drugs and have a material adverse effect on our sales, results of operations and financial condition.

The Medicare Prescription Drug, Improvement, and Modernization Act of 2003, or the MMA, established the Medicare Part D program to provide a voluntary prescription drug benefit to Medicare beneficiaries. Under Part D, Medicare beneficiaries may enroll in prescription drug plans offered by private entities that provide coverage of outpatient prescription drugs. Unlike Medicare Part A and B, Part D coverage is not standardized. Part D prescription drug plan sponsors are not required to pay for all covered Part D drugs, and each drug plan can develop its own drug formulary that identifies which drugs it will cover and at what tier or level. However, Part D prescription drug formularies must include drugs within each therapeutic category and class of covered Part D drugs, though not necessarily all the drugs in each category or class. Any formulary used by a Part D prescription drug plan must be developed and reviewed by a pharmacy and therapeutic committee. Medicare payment for some of the costs of prescription drugs may increase demand for drugs for which we receive regulatory approval. However, any negotiated prices for our drugs covered by a Part D prescription drug plan will likely be lower than the prices we might otherwise obtain. Moreover, while the MMA applies only to drug benefits for Medicare beneficiaries, private payors often follow Medicare coverage policy and payment limitations in setting their own payment rates. Any reduction in payment that results from the MMA may result in a similar reduction in payments from non-governmental payors.

The American Recovery and Reinvestment Act of 2009 provides funding for the federal government to compare the effectiveness of different treatments for the same illness. The plan for the research was published in 2012 by the U.S. Department of Health and Human Services, the Agency for Healthcare Research and Quality and the National Institutes for Health, and periodic reports on the status of the research and related expenditures are made to Congress. Although the results of the comparative effectiveness studies are not intended to mandate coverage policies for public or private payors, if third-

party payors do not consider a drug to be cost-effective compared to other available therapies, they may not cover such drugs as a benefit under their plans or, if they do, the level of payment may not be sufficient.

The Affordable Care Act, enacted in March 2010, has had a significant impact on the health care industry. The Affordable Care Act expanded coverage for the uninsured while at the same time containing overall healthcare costs. With regard to pharmaceutical products, the Affordable Care Act, among other things, addressed a new methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate Program are calculated for drugs that are inhaled, infused, instilled, implanted or injected, increased the minimum Medicaid rebates owed by manufacturers under the Medicaid Drug Rebate Program and extended the rebate program to individuals enrolled in Medicaid managed care organizations, established annual fees and taxes on manufacturers of certain branded prescription drugs, and created a new Medicare Part D coverage gap discount program, in which manufacturers must agree to offer 50% point-of-sale discounts off negotiated prices of applicable brand drugs to eligible beneficiaries during their coverage gap period, as a condition for the manufacturer's outpatient drugs to be covered under Medicare Part D. The Bipartisan Budget Act of 2018 made certain changes to Medicare Part D coverage, including changing the date when the Medicare Part D coverage gap is eliminated from 2020 to 2019, sunsetting the exclusion of biosimilars from the Medicare Part D coverage gap discount program in 2019 and reallocating responsibility for discounted pricing under the Medicare Part D coverage gap discount program from third-party payors to pharmaceutical companies. In December 2017, Congress also repealed the "individual mandate," which was an Affordable Care Act requirement that individuals obtain healthcare insurance coverage or face a penalty. This repeal could affect the total number of patients who have coverage from third-party payors that reimburse for use of our products.

In addition, other legislative changes have been proposed and adopted in the United States since the Affordable Care Act was enacted that affect reimbursement for prescription drugs. On August 2, 2011, the Budget Control Act of 2011 among other things, created measures for spending reductions by Congress. A Joint Select Committee on Deficit Reduction, tasked with recommending a targeted deficit reduction of at least $1.2 trillion for the years 2013 through 2021, was unable to reach required goals, thereby triggering the legislation's automatic reduction to several government programs. This includes aggregate reductions to Medicare payments to providers of up to 2% per fiscal year, started in April 2013, and, due to subsequent legislative amendments, will stay in effect through 2025 unless additional Congressional action is taken. On January 2, 2013, President Obama signed into law the American Taxpayer Relief Act of 2012, which among other things, also reduced Medicare payments to several providers, including hospitals, imaging centers and cancer treatment centers, and increased the statute of limitations period for the government to recover overpayments to providers from three to five years.

In addition, other proposed legislative and regulatory changes could affect reimbursement for prescription drugs. In January 2017, the Medicare Prescription Drug Price Negotiation Act was proposed in Congress, which would require the government to negotiate Medicare prescription drug prices with pharmaceutical companies. In October 2017, a similar bill, the Medicare Drug Price Negotiation Act of 2017 was proposed in Congress. In November 2017, the Centers for Medicare & Medicaid Services announced a Final Rule that would adjust the applicable payment rate as necessary for certain separately payable drugs and biologicals acquired under the 340B Program from average sales price plus 6% to average sales price minus 22.5%. Congress and the U.S. administration continue to evaluate other proposals that could affect third-party reimbursement for our drug candidates, if approved.

In some foreign countries, the proposed pricing for a drug must be approved before it may be lawfully marketed. The requirements governing drug pricing vary widely from country to country. For example, the European Union provides options for its member states to restrict the range of medicinal drugs for which their national health insurance systems provide reimbursement and to control the prices of medicinal drugs

for human use. A member state may approve a specific price for the medicinal drug or it may instead adopt a system of direct or indirect controls on the profitability of our company placing the medicinal drug on the market. Historically, drugs launched in the European Union do not follow price structures of the United States and generally tend to be significantly lower.

Pursuant to the Provisions for Drug Advertisement Examination, which were promulgated on March 13, 2007 and came into effect on 1 May 2007, an enterprise seeking to advertise its drugs must apply for an advertising approval code. The validity term of an advertisement approval number for pharmaceutical drugs is one year. The content of an approved advertisement may not be altered without prior approval. Where any alteration to the advertisement is needed, a new advertisement approval number shall be obtained.

According to the Measures for The Administration of Pharmaceutical Packaging, effective on September 1, 1988, pharmaceutical packaging must comply with the provisions of the national standard and professional standard. If there are no standards, the enterprise can formulate its own standard after obtaining the approval of the provincial level food and drug administration or bureau of standards. The enterprise shall reapply for the relevant authorities if it needs to change the packaging standard. Drugs without packing must not be sold in PRC (except for drugs needed by the army).

Under the Labor Law of the PRC, effective on January 1, 1995 and subsequently amended on August 27, 2009 and December 29, 2018, the Labor Contract Law of the PRC, effective on January 1, 2008 and subsequently amended on December 28, 2012, and the Implementing Regulations of the Labor Contract Law of the PRC, effective on September 18, 2008, employers must establish a comprehensive management system to protect the rights of their employees, including a system governing occupational health and safety to provide employees with occupational training to prevent occupational injury, and employers are required to truthfully inform prospective employees of the job description, working conditions, location, occupational hazards and status of safe production as well as remuneration and other conditions as requested by the Labor Contract Law of the PRC.

Pursuant to the Law of Manufacturing Safety of the People's Republic of China effective on November 1, 2002 and subsequently amended on December 1, 2014, manufacturers must establish a comprehensive management system to ensure manufacturing safety in accordance with applicable laws and regulations. Manufacturers not meeting relevant legal requirements are not permitted to commence their manufacturing activities.

Pursuant to the Administrative Measures Governing the Production Quality of Pharmaceutical Products effective on March 1, 2011, manufacturers of pharmaceutical products are required to establish production safety and labor protection measures in connection with the operation of their manufacturing equipment and manufacturing process.

Pursuant to applicable PRC laws, rules and regulations, including the Social Insurance Law which became effective on July 1, 2011 and subsequently amended on December 29, 2018, the Interim Regulations on the Collection and Payment of Social Security Funds which became effective on January 22, 1999, the Interim Measures concerning the Maternity Insurance which became effective on January 1, 1995 and the Regulations on Work-related Injury Insurance which became effective on

January 1, 2004 and were subsequently amended on December 20, 2010, employers are required to contribute, on behalf of their employees, to a number of social security funds, including funds for basic pension insurance, unemployment insurance, basic medical insurance, work-related injury insurance, and maternity insurance. If an employer fails to make social insurance contributions timely and in full, the social insurance collecting authority will order the employer to make up outstanding contributions within the prescribed time period and impose a late payment fee at the rate of 0.05% per day from the date on which the contribution becomes due. If such employer fails to make social insurance registration, the social insurance collecting authority will order the employer to correct within the prescribed time period. The relevant administrative department may impose a fine equivalent to three times the overdue amount and management personnel who are directly responsible can be fined RMB500 ($73.10) to RMB3,000 ($438.60) if the employer fails to correct within the prescribed time period.

Medical production and operation enterprises involved in criminal, investigation or administrative procedure for commercial bribery will be listed in the Adverse Records of Commercial Briberies by provincial health and family planning administrative department. Pursuant to the Provisions on the Establishment of Adverse Records of Commercial Briberies in the Medicine Purchase and Sales Industry enforced on March 1, 2014 by the National Health and Family Planning Commission, if medical production and operation enterprises are listed into the Adverse Records of Commercial Briberies for the first time, their production shall not be purchased by public medical institutions, and medical and health institutions receiving financial subsidies in local province in two years from public of the record, and public medical institutions, and medical and health institutions receiving financial subsidies in other provinces shall lower their rating in bidding or purchasing process. If medical production and operation enterprises are listed into the Adverse Records of Commercial Briberies twice or more times in five years, their production may not be purchased by public medical institutions, and medical and health institutions receiving financial subsidies nationwide in two years from public of the record.

As advised by our PRC legal advisor, from a PRC law perspective, a pharmaceutical company will not be penalized by the relevant PRC government authorities merely by virtue of having contractual relationships with distributors or third-party promoters who are engaged in bribery activities, so long as such pharmaceutical company and its employees are not utilizing the distributors or third-party promoters for the implementation of, or acting in conjunction with them in, the prohibited bribery activities. In addition, a pharmaceutical company is under no legal obligation to monitor the operating activities of its distributors and third-party promoters, and will not be subject to penalties or sanctions by relevant PRC government authorities as a result of failure to monitor their operating activities.

In addition to the strict new drug approval process, certain PRC laws have been promulgated to protect the rights of consumers and to strengthen the control of medical products in the PRC. Under current PRC law, manufacturers and vendors of defective products in the PRC may incur liability for loss and injury caused by such products. Pursuant to the General Principles of the Civil Law of the PRC, or the PRC Civil Law, promulgated on April 12, 1986 and amended on August 27, 2009, a defective product which causes property damage or physical injury to any person may subject the manufacturer or vendor of such product to civil liability for such damage or injury.

On February 22, 1993 the Product Quality Law of the PRC, or the Product Quality Law, was promulgated to supplement the PRC Civil Law aiming to define responsibilities for product quality, to protect the legitimate rights and interests of the end-users and consumers and to strengthen the supervision and control of the quality of products. The Product Quality Law was amended by the Ninth National People's Congress on July 8, 2000 and was later amended by the Eleventh National People's Congress on August 27, 2009 and the Thirteenth National People's Congress on December 29, 2018.

Pursuant to the amended Product Quality Law, manufacturers who produce defective products may be subject to civil or criminal liability and have their business licenses revoked.

The Law of the PRC on the Protection of the Rights and Interests of Consumers was promulgated on October 13, 1993 and was amended on October 25, 2013 to protect consumers' rights when they purchase or use goods and accept services. All business operators must comply with this law when they manufacture or sell goods and/or provide services to customers. Under the amendment on October 25, 2013, all business operators shall pay high attention to protect the customers' privacy which they obtain during the business operation. In addition, in extreme situations, pharmaceutical product manufacturers and operators may be subject to criminal liabilities under applicable laws of the PRC if their goods or services lead to the death or injuries of customers or other third parties.

Under the Tort Law of the PRC which became effective on July 1, 2010, if damages to other persons are caused by defective products that are resulted from the fault of a third party such as the parties providing transportation or warehousing, the producers and the sellers of the products have the right to recover their respective losses from such third parties. If defective products are identified after they have been put into circulation, the producers or the sellers shall take remedial measures such as issuance of warning, recall of products, etc. in a timely manner. The producers or the sellers shall be liable under tort if they cause damages due to their failure to take remedial measures in a timely manner or have not made efforts to take remedial measures, thus causing damages. If the products are produced and sold with known defects, causing deaths or severe damage to the health of others, the infringed party shall have the right to claim respective punitive damages in addition to compensatory damages.

We are subject to changing regulations under many other laws and regulations administered by governmental authorities at the national, provincial and municipal levels, some of which are or may become applicable to our business. Our hospital customers are also subject to a wide variety of laws and regulations that could affect the nature and scope of their relationships with us.

For example, regulations control the confidentiality of patients' medical information and the circumstances under which patient medical information may be released for inclusion in our databases, or released by us to third parties. These laws and regulations governing both the disclosure and the use of confidential patient medical information may become more restrictive in the future.

We also comply with numerous additional state and local laws relating to matters such as safe working conditions, manufacturing practices, environmental protection and fire hazard control. We believe that we are currently in compliance with these laws and regulations; however, we may be required to incur significant costs to comply with these laws and regulations in the future. Unanticipated changes in existing regulatory requirements or adoption of new requirements could therefore have a material adverse effect on our business, results of operations and financial condition.

We may also be subject to healthcare regulation and enforcement by the U.S. federal government and the states where we may market our drug candidates, if approved. These laws include, without limitation, state and federal anti-kickback, fraud and abuse, false claims, privacy and security and physician sunshine laws and regulations.

The federal Anti-Kickback Statute prohibits, among other things, any person from knowingly and willfully offering, soliciting, receiving or providing remuneration, directly or indirectly, to induce either the referral of an individual, for an item or service or the purchasing or ordering of a good or service, for which payment may be made under federal healthcare programs such as the Medicare and Medicaid programs. The majority of states also have anti-kickback laws, which establish similar prohibitions and in some cases may apply to items or services reimbursed by any third-party payor, including commercial insurers. The Anti-Kickback Statute is subject to evolving interpretations. In the past, the government has enforced the Anti-Kickback Statute to reach large settlements with healthcare companies based on sham consulting and other financial arrangements with physicians. A person or entity does not need to have actual knowledge of the statute or specific intent to violate it in order to have committed a violation. In addition, the government may assert that a claim including items or services resulting from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the federal False Claims Act.

Additionally, the civil False Claims Act prohibits knowingly presenting or causing the presentation of a false, fictitious or fraudulent claim for payment to the U.S. government. Actions under the False Claims Act may be brought by the Attorney General or as a qui tam action by a private individual in the name of the government. Analogous state law equivalents may apply and may be broader in scope than the federal requirements. Violations of the False Claims Act can result in very significant monetary penalties and treble damages. The federal government is using the False Claims Act, and the accompanying threat of significant liability, in its investigation and prosecution of pharmaceutical and biotechnology companies throughout the U.S., for example, in connection with the promotion of products for unapproved uses and other sales and marketing practices. The government has obtained multi-million and multi-billion dollar settlements under the False Claims Act in addition to individual criminal convictions under applicable criminal statutes. Given the significant size of actual and potential settlements, it is expected that the government will continue to devote substantial resources to investigating healthcare providers' and manufacturers' compliance with applicable fraud and abuse laws.

The federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, also created new federal criminal statutes that prohibit, among other actions, knowingly and willfully executing, or attempting to execute, a scheme to defraud any healthcare benefit program, including private third-party payors, knowingly and willfully embezzling or stealing from a healthcare benefit program, willfully obstructing a criminal investigation of a healthcare offense, and knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false, fictitious or fraudulent statement in connection with the delivery of or payment for healthcare benefits, items or services. Similar to the federal Anti-Kickback Statute, a person or entity does not need to have actual knowledge of the statute or specific intent to violate it in order to have committed a violation.

There has also been a recent trend of increased federal and state regulation of payments made to physicians and other healthcare providers. The Affordable Care Act, among other things, imposes new reporting requirements on drug manufacturers for payments made by them to physicians and teaching hospitals, as well as ownership and investment interests held by physicians and their immediate family members. Failure to submit required information may result in civil monetary penalties of up to an aggregate of $150,000 per year (or up to an aggregate of $1 million per year for "knowing failures"), for all payments, transfers of value or ownership or investment interests that are not timely, accurately and completely reported in an annual submission. Drug manufacturers were required to begin collecting data on August 1, 2013 and submit reports to the government by March 31, 2014 and June 30, 2014, and the 90th day of each subsequent calendar year. Certain states also mandate implementation of compliance

programs, impose restrictions on drug manufacturer marketing practices and/or require the tracking and reporting of gifts, compensation and other remuneration to physicians.

We may also be subject to data privacy and security regulation by both the federal government and the states in which we conduct our business. HIPAA, as amended by the Health Information Technology and Clinical Health Act, or HITECH, and their respective implementing regulations, including the final omnibus rule published on January 25, 2013, imposes specified requirements relating to the privacy, security and transmission of individually identifiable health information. Among other things, HITECH makes HIPAA's privacy and security standards directly applicable to "business associates," defined as independent contractors or agents of covered entities that create, receive, maintain or transmit protected health information in connection with providing a service for or on behalf of a covered entity. HITECH also increased the civil and criminal penalties that may be imposed against covered entities, business associates and possibly other persons, and gave state attorneys general new authority to file civil actions for damages or injunctions in federal courts to enforce the federal HIPAA laws and seek attorney's fees and costs associated with pursuing federal civil actions. In addition, state laws govern the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways, thus complicating compliance efforts.

PRC Regulation of Foreign Currency Exchange, Offshore Investment and State-Owned Assets

Foreign currency exchange regulation in China is primarily governed by the following rules:

Under the Exchange Rules, the renminbi is convertible for current account items, including the distribution of dividends, interest payments, trade and service-related foreign exchange transactions. Conversion of renminbi for capital account items, such as direct investment, loan, security investment and repatriation of investment, however, is still subject to the SAFE.

Under the Administration Rules, foreign-invested enterprises may only buy, sell and/or remit foreign currencies at those banks authorized to conduct foreign exchange business after providing valid commercial documents and, in the case of capital account item transactions, obtaining approval from the SAFE. Capital investments by foreign-invested enterprises outside of China are also subject to limitations, which include approvals by the MOFCOM, the SAFE and the NDRC.

Pursuant to the Circular on Further Improving and Adjusting the Direct Investment Foreign Exchange Administration Policies, or Circular 59, promulgated by the SAFE on November 19, 2012 and became effective on December 17, 2012, approval is not required for the opening of and payment into foreign exchange accounts under direct investment, for domestic reinvestment with legal income of foreign investors in China. Circular 59 also simplified the capital verification and confirmation formalities for Chinese foreign invested enterprises and the foreign capital and foreign exchange registration formalities required for the foreign investors to acquire the equities of Chinese party and other items. Circular 59 further improved the administration on exchange settlement of foreign exchange capital of Chinese foreign invested enterprises.

In July 2014, the SAFE issued the Notice on Relevant Issues Concerning Foreign Exchange Administration for PRC Residents to Engage in Offshore Investment and Financing and Round Trip Investment via Special Purpose Vehicles, or Circular 37, and its implementation guidelines, which abolishes and supersedes the SAFE's Circular on Relevant Issues Concerning Foreign Exchange Administration for PRC Residents to Engage in Financing and Round Trip Investment via Overseas Special Purpose Vehicles, or Circular 75. Pursuant to Circular 37 and its implementation guidelines, PRC residents (including PRC institutions and individuals) must register with local branches of the SAFE in connection with their direct or indirect offshore investment in an overseas special purpose vehicle, or SPV, directly established or indirectly controlled by PRC residents for the purposes of offshore investment and financing with their legally owned assets or interests in domestic enterprises, or their legally owned offshore assets or interests. Such PRC residents are also required to amend their registrations with the SAFE when there is a significant change to the SPV, such as changes of the PRC individual resident's increase or decrease of its capital contribution in the SPV, or any share transfer or exchange, merger, division of the SPV. Failure to comply with the registration procedures set forth in Circular 37 may result in restrictions being imposed on the foreign exchange activities of the relevant onshore company, including the payment of dividends and other distributions to its offshore parent or affiliate, the capital inflow from the offshore entities and settlement of foreign exchange capital, and may also subject relevant onshore company or PRC residents to penalties under PRC foreign exchange administration regulations.

In February 2012, the SAFE promulgated the Notices on Issues Concerning the Foreign Exchange Administration for Domestic Individuals Participating in Stock Incentive Plans of Overseas Publicly Listed Companies. Based on this regulation, directors, supervisors, senior management and other employees of domestic subsidiaries or branches of a company listed on an overseas stock market who are PRC citizens or who are non-PRC citizens residing in China for a continuous period of not less than one year, subject to a few exceptions, are required to register with the SAFE or its local counterparts by following certain procedures if they participate in any stock incentive plan of the company listed on an overseas stock market. Foreign exchange income received from the sale of shares or dividends distributed by the overseas listed company may be remitted into a foreign currency account of such PRC citizen or be exchanged into renminbi. Our PRC citizen employees who have been granted share options have been subject to these rules due to our listing on the AIM market of the London Stock Exchange and the listing of our ADSs on the Nasdaq Global Select Market.

Pursuant to PRC law, the registered capital of a limited liability company is the total capital contributions subscribed for by all the shareholders as registered with the company registration authority. A foreign-invested enterprise also has a total investment limit that is approved by or filed with the MOFCOM or its local counterpart by reference to both its registered capital and expected investment scale. The difference between the total investment limit and the registered capital of a foreign-invested enterprise or the cross-border financing risk weighted balance calculated based on a formula by the PBOC represents the foreign debt financing quota to which it is entitled (i.e., the maximum amount of debt which the company may borrow from a foreign lender). A foreign-invested enterprise is required to obtain approval from or file with the MOFCOM or its local counterpart for any increases to its total investment limit. In accordance with these regulations, we and our joint venture partners have contributed financing to our PRC subsidiaries and joint ventures in the form of capital contributions up to the registered capital amount and/or in the form of shareholder loans up to the foreign debt quota. According to the financing needs of our PRC subsidiaries and joint ventures, we and our joint venture partners have requested and received approvals from the government authorities for increases to the total investment limit for certain of our PRC subsidiaries and joint ventures from time to time. As a result, these regulations have not had a material impact to date on our ability to finance such entities.

The principal regulations governing distribution of dividends paid by wholly foreign-owned enterprises include:

Under these laws and regulations, foreign-invested enterprises in China may pay dividends only out of their accumulated profits, if any, determined in accordance with PRC accounting standards and regulations. In addition, a wholly foreign-owned enterprise in China is required to set aside at least 10.0% of its after-tax profit based on PRC accounting standards each year to its general reserves until the accumulative amount of such reserves reach 50.0% of its registered capital. These reserves are not distributable as cash dividends. The board of directors of a foreign-invested enterprise has the discretion to allocate a portion of its after-tax profits to staff welfare and bonus funds, which may not be distributed to equity owners except in the event of liquidation.

Pursuant to applicable PRC state-owned assets administration laws and regulations, incorporating a joint venture that will have investments of assets that are both state-owned and non-state-owned and investing in an entity that was previously owned by a state-owned enterprise require the performance of an assessment of the relevant state-owned assets and the filing of the assessment results with the competent state-owned assets administration, finance authorities or other regulatory authorities and, if applicable, the receipt of approvals from such authorities.

Our joint venture partners were required to perform a state-owned asset assessment when Shanghai Hutchison Pharmaceuticals and Hutchison Baiyunshan were incorporated and our joint venture partners contributed state-owned assets, and when we invested in Hutchison Sinopharm, which was previously wholly-owned by Sinopharm, a state-owned enterprise. In all three instances, our joint venture partners have informed us that they have duly filed the relevant state-owned asset assessment results with, and obtained the requisite approvals from, the relevant governmental authorities as required by the foregoing laws and regulations. Accordingly, we believe that such joint ventures are in full compliance with all applicable laws and regulations governing the administration of state-owned assets, although we are currently unable to obtain copies of certain filing and approval documents of our joint venture partners due to their internal confidentiality constraints. We have not received any notice of warning or been subject to any penalty or other disciplinary action from the relevant governmental authorities with respect to the applicable laws and regulations governing the administration of state-owned assets.

Our organizational structure is set forth above under "—A. History and Development of the Company."

We are headquartered in Hong Kong where we have our main administrative offices. Our joint ventures, Shanghai Hutchison Pharmaceuticals and Hutchison Baiyunshan, operate two large-scale research and development and manufacturing facilities for which they have obtained land use rights and property ownership certificates.

Shanghai Hutchison Pharmaceuticals relocated to its current facility outside of Shanghai in September 2016, and it has an aggregate site area of approximately 78,000 square meters (compared to approximately 58,000 square meters for its old facility located in Shanghai). Shanghai Hutchison Pharmaceuticals agreed to surrender its land use rights for the property where its old production facility was located to the Shanghai government for cash consideration. The total cash and subsidies paid by the Shanghai government to Shanghai Hutchison Pharmaceuticals was approximately $113 million, including approximately $101 million for land compensation and $12 million in government subsidies related to research and development projects.

Hutchison Baiyunshan's facility is in Guangzhou and has an aggregate site area of approximately 90,000 square meters. Hutchison Baiyunshan plans to sell its land use rights for an unused portion of its Guangzhou property to the local government for cash consideration. Hutchison Baiyunshan also operates one Chinese GAP-certified cultivation sites through its subsidiary in Heilongjiang province in China. In December 2016, its subsidiary completed construction of new production facilities in Bozhou and production commenced in 2017.

Our and our joint ventures' manufacturing operations consist of bulk manufacturing and formulation, fill, and finishing activities that produce products and drug candidates for both clinical and commercial purposes. Our manufacturing capabilities have a large operation scale for our own-brand products. We and our joint ventures manufacture and sell about 4.8 billion doses of medicines a year, in the aggregate, through our well-established GMP manufacturing base. See "—Our Commercial Platform—Prescription Drugs Business—Shanghai Hutchison Pharmaceuticals" and "—Our Commercial Platform—Consumer Health Business—Hutchison Baiyunshan" for more details on our manufacturing operations.

Please also see "—Our Commercial Platform—Our Prescription Drugs Business—Shanghai Hutchison Pharmaceuticals" and "—Our Commercial Platform—Our Consumer Health Business—Hutchison Baiyunshan" for more details on the new facilities of Shanghai Hutchison Pharmaceuticals and Hutchison Baiyunshan mentioned above.

Additionally, we rent and operate a 2,107 square meter manufacturing facility for fruquintinib in Suzhou, Jiangsu Province in Eastern China, and own a 5,024 square meter facility in Shanghai which houses research and development operations. We also lease 907 square meters of office space in Shanghai which houses Hutchison MediPharma's management and staff. In 2017, we entered into a new lease for a 6,129 square meter combined office and lab space in Shanghai to accommodate the anticipated growth of Hutchison MediPharma's management and staff and for a 2,246 square foot facility in Florham Park, New Jersey where we intend to house clinical and regulatory management and staff.

You should read the following discussion and analysis of our financial condition and results of operations together with Item 3.A. "Selected Financial Data," our consolidated financial statements and the related notes and our non-consolidated joint ventures' consolidated financial statements and the related notes appearing elsewhere in this annual report. This report contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Exchange Act, including, without limitation, statements regarding our expectations, beliefs, intentions or future strategies that are signified by the words "expect," "anticipate," "intend," "believe," or similar language. All forward-looking statements included in this annual report are based on information available to us on the date hereof, and we assume no obligation to update any such forward-looking statements. In evaluating our business, you should carefully consider the information provided under Item 3.D. "Risk Factors." Actual results could differ materially from those projected in the forward-looking statements. The terms "company," "Chi-Med," "we," "our" or "us" as used herein refer to Hutchison China MediTech Limited and its consolidated subsidiaries and joint ventures unless otherwise stated or indicated by context.

We are an innovative, commercial-stage biopharmaceutical company based in China aiming to become a global leader in the discovery, development and commercialization of targeted therapeutics and immunotherapies for oncology and immunological diseases. Our approximately 420-person strong scientific team has created and developed a deep portfolio of eight drug candidates, five of which are either in or about to start global clinical development. These drug candidates are being developed to treat a wide spectrum of diseases, including solid tumors, hematological malignancies and cover immunology applications which we believe address significant unmet medical needs and represent large commercial opportunities. Many of these drugs have the potential to be first-in-class or best-in-class. Our success in research and development has led to partnerships with leading global pharmaceutical companies, including AstraZeneca and Eli Lilly. As of December 31, 2018, we and our partners have invested about $650 million in building our Innovation Platform.

We have also established a profitable commercial infrastructure in China to market and distribute prescription drugs (under our Prescription Drugs business) and consumer health products (under our Consumer Health business) which together form our Commercial Platform. Net income attributable to our company generated from our Commercial Platform was $70.3 million, $40.0 million and $41.4 million for the years ended December 31, 2016, 2017 and 2018, respectively. Net income attributable to our company generated from our Commercial Platform included one-time gains of $40.4 million, $2.5 million and nil in the years ended December 31, 2016, 2017 and 2018, respectively, net of tax, from land compensation and other government subsidies paid to Shanghai Hutchison Pharmaceuticals by the Shanghai government. In addition to helping to fund our Innovation Platform, we anticipate that we will be able to utilize Shanghai Hutchison Pharmaceuticals and Hutchison Sinopharm, our Commercial Platform's two Prescription Drugs business joint ventures in which we nominate the management and run the day-to-day operations, to support the launch of products from our Innovation Platform if they are approved by the NMPA for use in China. Our Commercial Platform also includes our Consumer Health business, which is a profitable and cash flow generating business selling primarily over-the-counter pharmaceutical products (through our non-consolidated joint venture Hutchison Baiyunshan) and a range of health-focused consumer products.

Our consolidated revenue was $216.1 million, $241.2 million and $214.1 million for the years ended December 31, 2016, 2017 and 2018, respectively. Net income attributable to our company was $11.7 million for the year ended December 31, 2016, compared to a net loss attributable to our company of $26.7 million and $74.8 million for the years ended December 31, 2017 and 2018, respectively.

Our consolidated statements of operations data presented herein for the years ended December 31, 2018, 2017 and 2016 and our consolidated balance sheet data presented herein as of December 31, 2018 and 2017 have been derived from our audited consolidated financial statements, which were prepared in accordance with U.S. GAAP, and should be read in conjunction with those statements which are included elsewhere in this annual report.

Our Shanghai Hutchison Pharmaceuticals and Hutchison Baiyunshan joint ventures under our Commercial Platform and our Nutrition Science Partners joint venture under our Innovation Platform are accounted for under the equity accounting method as non-consolidated entities in our consolidated financial statements, and their consolidated financial statements were prepared in accordance with IFRS as issued by the IASB and included elsewhere in this annual report.

We have two strategic business units, our Innovation Platform and our Commercial Platform, that offer different products and services. Our Commercial Platform is further segregated into the two core business areas of Prescription Drugs and Consumer Health. The presentation of financial data for our business units excludes certain unallocated costs attributed to expenses incurred by our corporate head office. For more information on our corporate structure, see Item 4.A. "History and Development of the Company."

We believe our ability to successfully develop innovative drug candidates through our Innovation Platform will be the primary factor affecting our long-term competitiveness, as well as our future growth and development. Creating high quality global first-in-class or best-in-class drug candidates requires a significant investment of resources over a prolonged period of time, and a core part of our strategy is to continue making sustained investments in this area. As a result of this commitment, our pipeline of drug candidates has been steadily advancing and expanding, with eight clinical-stage drug candidates, five of which are either in or about to start global clinical development. For more information on the nature of the efforts and steps necessary to develop our drug candidates, see Item 4.B. "Business Overview—Our Clinical Pipeline" and "Business Overview—Regulation."

All of the drug candidates of our Innovation Platform, other than fruquintinib for one indication in China, are still in development, and we have incurred and will continue to incur significant research and development costs for pre-clinical studies and clinical trials. We expect that our research and development expenses will significantly increase in future periods in line with the advance and expansion of the development of our drug candidates.

We and our collaboration partners have invested about $650 million in our Innovation Platform as of December 31, 2018, with almost all of these funds used for research and development expenses for the development of our drug candidates. Innovation Platform expenses include:

Research and development costs incurred by our Innovation Platform totaled $66.9 million, $75.5 million and $114.2 million for the years ended December 31, 2016, 2017 and 2018, respectively, representing 31.0%, 31.3% and 53.3% of our total consolidated revenue for the respective period. These figures do not include payments made by our collaboration partners directly to third parties to help fund the research and development of our drug candidates.

We have historically been able to fund the research and development expenses for our Innovation Platform via a range of sources, including financial support provided by our collaboration partners, cash flows generated from and dividend payments from our Commercial Platform, the proceeds raised from our initial public offering on the AIM market of the London Stock Exchange, our initial public offering and follow-on offering on the Nasdaq Global Select Market and banks borrowings. Since our founding, we have also received various financial support from CK Hutchison in the form of undertakings for bank borrowings, as well as investments from other third-parties.

This diversified approach to funding allows us to not depend on any one method of funding for our Innovation Platform, thereby reducing the risk that sufficient financing will be unavailable as we continue to accelerate the development of our drug candidates.

For more information on the research and development expenses incurred for the development of our drug candidates, see "—Key Components of Results of Operations—Research and Development Expenses."

Our ability to generate revenue from our drug candidates depends on our ability to successfully complete clinical trials for our drug candidates and obtain regulatory approvals for them in the United States, Europe, China and other major markets.

We believe that our risk-balanced strategy of focusing on developing tyrosine kinase inhibitors for novel but relatively well-characterized targets and for validated targets, in combination with our development of multiple drug candidates concurrently and testing them for multiple indications and in combinations with other drugs, enhances the likelihood that our research and development efforts will yield successful drug candidates. Nonetheless, we cannot be certain if any of our drug candidates will receive regulatory approvals. Even if such approvals are granted, we will need to thereafter establish manufacturing supply and engage in extensive marketing prior to generating any revenue from such drugs, and the ultimate commercial success of our drugs will depend on their acceptance by patients, the medical community and third-party payors and their ability to compete effectively with other therapies on the market.

As a first step towards commercialization, we have incurred a total of approximately $10.7 million in capital expenditures between 2013 and 2018 to establish a GMP standard manufacturing (formulation) facility in Suzhou, China, which now produces commercial supplies of Elunate (the brand name for fruquintinib).

The competitive environment is also an important factor with the commercial success of our potential global first-in-class products, such as savolitinib and HMPL-523, depending on whether we are able to gain regulatory approvals and quickly bring such products to market ahead of competing drug candidates being developed by other companies.

For our drug candidates where we retain all rights worldwide, which currently include surufatinib, epitinib, theliatinib, HMPL-523, HMPL-689 and HMPL-453, if they remain unpartnered, we will be able to retain all the profits if any of them are successfully commercialized, though we will need to bear all the costs associated with such drug candidates. Conversely, as discussed below, for our drug candidates which are subject to collaboration partnerships, our collaboration partners provide funding for development of the drug candidates but are entitled to retain a significant portion of any revenue generated by such drug candidates.

Our results of operations have been, and we expect them to continue to be, affected by our collaborations with third parties for the development and commercialization of certain of our drug candidates. Currently, these mainly include savolitinib (collaboration with AstraZeneca) and fruquintinib (collaboration with Eli Lilly). In addition to providing us with invaluable technical expertise and organizational resources, the financial support provided by these collaborations has been critical to our ability to develop and quickly advance the pre-clinical and clinical studies of multiple drug candidates concurrently.

In particular, our partners cover a portion of our research and development costs for drug candidates developed in collaboration with them. For example, under our collaboration agreement with AstraZeneca, it is responsible for a significant portion of the development costs for savolitinib. However, in August 2016 we and AstraZeneca amended our collaboration agreement whereby we agreed to contribute additional funding for the research and development of savolitinib in return for a larger share of the upside if and

when savolitinib is approved. Under our original collaboration agreement with Eli Lilly, it was responsible for a significant portion of all fruquintinib development costs in China. Under the terms of our December 2018 amendment to this agreement, we are responsible for all development costs for fruquintinib in new life cycle indications. We believe a material portion of such costs will be borne by third-party pharmaceutical companies, such as PD-1 manufacturers Innovent and Genor, with whom we collaborate to develop fruquintinib combination therapies.

In addition, under our licensing, co-development and commercialization agreements, we received upfront payments upon our entry into such agreements and milestone payments upon the achievement of certain development, regulatory and commercial milestones payments for our provision of research and development services for the relevant drug candidate as well as royalties on product sales. Revenue recognized in our consolidated financial statements from such agreements with AstraZeneca and Eli Lilly totaled $26.4 million, $26.3 million and $30.1 million for the years ended December 31, 2016, 2017 and 2018, respectively. In addition, income from research and development services from both other third parties and related parties totaled $8.8 million, $9.7 million and $7.8 million for the years ended December 31, 2016, 2017 and 2018, respectively.

The achievement of milestones for our drug candidates, which is dependent on the outcome of clinical studies, is subject to a high degree of uncertainty and, as a result, we cannot reasonably estimate when we can expect to receive future milestone payments, or at all. For more information on our revenue recognition policies, see "—Critical Accounting Policies and Significant Judgments and Estimates—Revenue recognition—Innovation Platform." If we are unable to achieve development milestones for our drug candidates or if our partners were to terminate their collaborative agreements with us, payments for research and development services could also be affected.

Our collaboration partners are entitled to a significant proportion of any future revenue from commercialization of our drug candidates developed in collaboration with them, as well as a degree of influence over the clinical development process for such drug candidates. We may not be able to negotiate additional collaborations on a timely basis, on acceptable terms, or at all, which would affect our ability to receive additional upfront, milestone or service payments in the future. For more information regarding our collaboration agreements, see Item 4.B. "Business Overview—Overview of Our Collaborations."

Revenue of our Innovation Platform is affected by the sales volume and pricing of Elunate, and in the future will be affected by the sales volume and pricing of our other drug candidates, if approved. Eligible participants in the government-sponsored medical insurance programs in China are entitled to reimbursement for varying percentages of the cost for any medicines that are included in applicable reimbursement lists. Factors that affect the inclusion of medicines in China's National Medicines Catalogue and any applicable reimbursement list may include whether the medicine is consumed in large volumes and commonly prescribed for clinical use in China and whether it is considered to be important in meeting the basic healthcare needs of the general public. For more information, see Item 4.B. "Business Overview—Coverage and Reimbursement—PRC Coverage and Reimbursement."

The inclusion of a medicine in the National Medicines Catalogue or other applicable reimbursement lists can substantially improve the sales volume of the medicine due to the availability of third-party reimbursements; while, on the other hand, subjects it to price controls in the form of fixed retail prices or retail price ceilings, as well as periodical price adjustments by the regulatory authorities. Such price controls, especially downward price adjustments, may negatively affect the retail price of our drug candidates. On balance, we believe that, if priced appropriately, the benefit of the inclusion of our drug candidates in the National Medicines Catalogue and other applicable reimbursement lists outweighs the cost of such inclusion. In early 2019, Elunate was added to certain city-level reimbursement lists. Elunate is

not currently included in the National Medicines Catalogue and may or may not be included the future, and if it is, we cannot be certain of the impact it will have on the retail price of Elunate.

Revenue of our Prescription Drugs business and our non-consolidated joint venture Hutchison Baiyunshan, part of our Consumer Health business, is directly affected by the sales volume and pricing of their own-brand prescription and over-the-counter pharmaceutical products as well as third-party pharmaceutical products. The principal activities of our Prescription Drugs business are described below under "—Ability of Prescription Drugs Business to Effectively Market Own-Brand and Third-Party Drugs." Hutchison Baiyunshan is a non-consolidated joint venture whose key products are two generic over-the-counter therapies, Fu Fang Dan Shen tablets, a treatment for chest congestion and angina pectoris, and Banlangen granules, an anti-viral treatment.

The sales volume of the products sold by these businesses is driven in part by the level of Chinese government spending on healthcare and the coverage of Chinese government medical insurance schemes, which is correlated with patient reimbursements for drug purchases, all of which have increased significantly in recent years as part of healthcare reforms in China. The sales volume of pharmaceutical products in China is also influenced by their representation on the National Medicines Catalogue, which determines eligibility for drug reimbursement, as well as their representation on the National Essential Medicines List, which mandates distribution of drugs in China. Substantially all pharmaceutical products manufactured and sold by Shanghai Hutchison Pharmaceuticals and Hutchison Baiyunshan in 2018 were capable of being reimbursed under the National Medicines Catalogue as of December 31, 2018.

In addition, among these two joint ventures an aggregate of 49 drugs, of which 14 were in active production as of December 31, 2018, have been included on the National Essential Medicines List. She Xiang Bao Xin pills, Shanghai Hutchison Pharmaceuticals' top-selling drug, is one of the few proprietary drugs included on the National Essential Medicines List. The National Medicines Catalogue and the National Essential Medicines List are subject to revision by the government from time to time, and our results could be materially and adversely affected if any products sold by our Prescription Drugs business or Hutchison Baiyunshan are removed from the National Medicines Catalogue or the National Essential Medicines List. For more information, see Item 3.D. "Risk Factors—Risks Related to Our Commercial Platform—Reimbursement may not be available for the products currently sold through our Commercial Platform or our drug candidates in China, the United States or other countries, which could diminish our sales or affect our profitability."

The sale prices of certain pharmaceutical products sold by our Commercial Platform joint ventures are also subject to Chinese government's price controls. In April 2014, the China National Development and Reform Commission, or the NDRC, announced a new Low Price Drug List, or LPDL, aimed at making certain low-price pharmaceuticals more profitable for manufacturers to produce. The LPDL established caps for the daily cost of chemical pharmaceuticals at less than RMB3.0 ($0.44) per day and of traditional Chinese medicine pharmaceuticals at less than RMB5.0 ($0.73) per day. The LPDL gives manufacturers flexibility to increase prices within the caps and exempts LPDL pharmaceuticals from hospital tenders. As of the end of 2018, Hutchison Baiyunshan's two top-selling products, Fu Fang Dan Shen tablets and Banlangen, cost consumers RMB1.9 ($0.28) per day and RMB2.2 ($0.32) per day, respectively, and Shanghai Hutchison Pharmaceuticals' two top-selling products, She Xiang Bao Xin pills and Danning tablets, cost RMB4.4 ($0.64) per day and RMB3.3 ($0.48) per day, respectively, well below the established caps for traditional Chinese medicine pharmaceuticals under the LPDL. As a result, we do not expect the LPDL to exert downward pressure on the pricing of these products unless the government makes significant downward adjustments to the LPDL price caps in the future.

Subject to customer demand, we have the ability to increase the prices for these products under the current LPDL price caps. For example, during 2016 we began to phase in, on a province-by-province basis, a 30% price increase for She Xiang Bao Xin pills from RMB2.7 ($0.40) per day to RMB3.5 ($0.51) per day and in 2017 and 2018 we further increased the price to RMB4.0 ($0.59) per day and RMB4.4 ($0.64) per day, respectively. In addition, the pricing of Shanghai Hutchison Pharmaceuticals' prescription drugs are influenced by the outcomes of periodic provincial and municipal tender processes organized by the various provincial or municipal government agencies in China. For more information, see Item 4.B. "Business Overview—Coverage and Reimbursement—PRC Coverage and Reimbursement."

A key component of our Commercial Platform is the extensive marketing network of our Prescription Drugs business operated by our joint ventures Shanghai Hutchison Pharmaceuticals and Hutchison Sinopharm, which includes approximately 2,500 medical sales representatives covering approximately 24,900 hospitals in over 320 cities and towns in China. Our results of operations are affected by the degree to which this marketing network is successful in not only marketing its existing drugs but also new drugs either from third parties or developed by our Innovation Platform, if approved. Historically, the substantial majority of revenue from our Prescription Drugs joint venture business was generated from sales of She Xiang Bao Xin pills, which represented approximately 88%, 86% and 85% of its total revenue for the years ended December 31, 2016, 2017 and 2018, respectively.

In addition, since our acquisition of a 51% equity interest in Hutchison Sinopharm in April 2014, we have been in the process of migrating its operational focus from the legacy logistics and distribution business of a predecessor entity previously operated by our joint venture partner toward providing a distribution and commercialization service for drugs owned by third parties, which has a relatively higher profit margin.

In 2015, Hutchison Sinopharm became the exclusive first-tier distributor to distribute and market AstraZeneca's quetiapine tablets (under the Seroquel trademark), a medication to treat schizophrenia and bipolar disorder, in all of China. Under this arrangement, Hutchison Sinopharm manages the distribution and logistics for this drug and Shanghai Hutchison Pharmaceuticals markets it. In January 2016, Hutchison Healthcare granted a license to Hutchison Sinopharm to distribute Chi-Med-owned Zhi Ling Tong infant nutrition products, which had previously been distributed by a third-party distributor.

Seroquel in particular represents a relatively new therapeutic area for our medical sales representatives, and in the limited time since we commenced our services for these drugs, we have been successful in generating sales. During 2018, Shanghai Hutchison Pharmaceuticals had a dedicated medical sales team of about 110 people to support the commercialization of Seroquel.

China has begun implementing a new regulatory two-invoice system on a province-by-province basis. In principle, the purpose of the two-invoice system is to restrict the number of layers in the drug distribution system in China, in order to improve transparency, compliant business conduct and efficiency. The impact to us is that, starting in October 2017, the original Seroquel sales model, in which our consolidated revenues reflect total gross sales of Seroquel, has begun to shift to a fee-for-service model similar to that used all along on Concor. Transactions under the fee-for-service model applies net accounting as Hutchison Sinopharm acts as a service provider and does not bear inventory risk as it no longer takes delivery of Seroquel. The effect of this change is to reduce the top-line revenues Hutchison Sinopharm records from sales of Seroquel in future periods; but it will have no material impact on profitability and limited impact to our commercial team operations and expansion plans.

In the longer term, the ability of our marketing network to adapt to effectively market such drugs to doctors and hospitals, as well as other third-party drugs we may provide services for in the future and any oncology or immunology drugs from our Innovation Platform, will impact our revenue and profitability. In addition, if we are unsuccessful in marketing any third-party drugs, it may adversely affect our ability to

enter into commercialization arrangements for additional drugs or prevent us from expanding the geographic scope of existing arrangements.

The results of operations of our Commercial Platform are also affected by seasonal factors. Our Commercial Platform typically experiences higher profits in the first half of the year due to the sale cycles of our distributors, whereby they typically increase their inventories at the beginning of each year. In addition, in the second half of each year, our Commercial Platform typically spends more on marketing activities to help reduce such inventory held by distributors. We do not experience material seasonal variations in the results of our Innovation Platform.

The results of operations and growth of our Consumer Health business depend in part on continuing economic growth and increasing income and health awareness of consumers in Asia. Although economic growth in China has slowed in recent periods, it achieved an annual growth rate in real gross domestic product of approximately 6.6% in 2018 according to the International Monetary Fund. As per capita disposable income has increased, consumer spending has also increased, and consumers in China have tended to be more health conscious and to spend more on organic and natural products for their families' health and well-being. However, if customer demand for such products does not achieve the levels we expect, whether due to slowing economic conditions, changing consumer tastes or otherwise, the results of operations and growth of our Consumer Health business could be materially and adversely affected.

Our discussion and analysis of operating results and financial condition are based upon our consolidated financial statements. The preparation of consolidated financial statements requires us to estimate the effect of various matters that are inherently uncertain as of the date of the consolidated financial statements. Each of these required estimates varies with regard to the level of judgment involved and its potential impact on our reported financial results. Estimates are deemed critical when a different estimate could have reasonably been used or where changes in the estimates are reasonably likely to occur from period to period, and a different estimate would materially impact our financial position, changes in financial position or results of operations. Our significant accounting policies are discussed under note 3 to our consolidated financial statements included in this annual report. We believe the following critical accounting policies are affected by significant judgments and estimates used in the preparation of our consolidated financial statements and that the judgments and estimates are reasonable.

Our Innovation Platform reportable segment principally generates revenue from license and collaboration contracts as well as sales of drug products developed from the Innovation Platform. The license and collaboration contracts generally contain multiple performance obligations including (1) the license to the commercialization rights of a drug compound and (2) the research and development services for each specified treatment indication, which are accounted for separately if they are distinct, i.e. if a product or service is separately identifiable from other items in the arrangement and if a customer can benefit from it on its own or with other resources that are readily available to the customer.

the relative standalone selling prices of each performance obligation determined at the inception of the contract. We estimate the standalone selling prices based on the income approach.

Control of the license to the drug compounds transfers at the inception date of the collaboration agreements and consequently, amounts allocated to this performance obligation are generally recognized at a point in time. Conversely, research and development services for each specified indication are performed over time and amounts allocated to these performance obligations are generally recognized over time using cost inputs as a measure of progress. We have determined that research and development expenses provide an appropriate depiction of measure of progress for the research and development services. Changes to estimated cost inputs may result in a cumulative catch-up adjustment. Royalty revenues are recognized as future sales occur as they meet the requirements for the sales-usage based royalty exception.

Revenue recognition from sales of drug products developed from the Innovation Platform follows revenue recognition from sales of goods in the Commercial Platform below.

Our Commercial Platform reportable segment principally generates revenue from (1) sales of goods, which are the manufacture or purchase and distribution of pharmaceutical and consumer health products, and (2) sales of services, which are the provision of sales, distribution and marketing services to pharmaceutical manufacturers. We evaluate whether we are the principal or agent for these contracts, which include prescription drug products and consumer health products. Where we are the principal (i.e. recognizes sales of goods on a gross basis), we generally obtain control of the goods for distribution. Where we are the agent (i.e. recognizes provision of services on a net basis), we generally do not obtain control of the goods for distribution. Control is primarily evidenced by taking physical possession and inventory risk of the goods.

Revenue from sales of goods is recognized when the customer takes possession of the goods. We have determined that this occurs upon completed delivery of the goods to the customer site. The amount of revenue recognized is adjusted for expected sales incentives as stipulated in the contract, which are generally issued to customers as direct discounts at the point of sale or indirectly in the form of rebates. Sales incentives are estimated using the expected value method. Additionally, sales are generally made with a limited right of return under certain conditions. Revenues are recorded net of provisions for sales discounts and returns.

Revenue from provision of services is recognized when the benefits of the services transfer to the customer over time, which is based on the proportionate value of services rendered as determined under the terms of the relevant contract. Additionally, when the amounts that can be invoiced correspond directly with the value to the customer for performance completed to date, we recognize revenue from provision of services based on amounts that can be invoiced to the customer.

We account for share-based compensation by measuring and recognizing compensation expense for share options made to employees and directors based on the estimated grant date fair values. We use the graded vesting method to allocate compensation expense to reporting periods over each optionee's requisite service period, and account for forfeitures as they occur.

We estimate the fair value of share options to employees and directors using the Polynomial model. Determining the fair value of share options requires the use of highly subjective assumptions, including volatility, risk free interest rate, dividend yield and the fair value of the underlying ordinary shares on the dates of grant, among other inputs. The assumptions in determining the fair value of share options represent our best estimates, which involve inherent uncertainties and the application of judgment. As a

result, if factors change and different assumptions are used, our level of share-based compensation could be materially different in the future.

Impairment of long-lived property, plant and equipment and other definite life intangible assets

We assess property, plant and equipment and other definite life intangible assets for impairment when events or changes in circumstances indicate that the carrying value of the assets or the asset grouping may not be recoverable. Factors that we consider in deciding when to perform an impairment review include significant under-performance of a business or product line in relation to expectations, significant negative industry or economic trends, and significant changes or planned changes in our use of the assets. We measure the recoverability of assets that we will continue to use in our operations by comparing the carrying value of the asset grouping to our estimate of the related total future undiscounted net cash flows. If an asset grouping's carrying value is not recoverable through the related undiscounted cash flows, the asset grouping is considered to be impaired. We measure the impairment by comparing the difference between the asset grouping's carrying value and its fair value. Property, plant and equipment and other definite life intangible assets are considered non-financial assets and are recorded at fair value only if an impairment charge is recognized.

Impairments are determined for groups of assets related to the lowest level of identifiable independent cash flows. When we determine that the useful lives of assets are shorter than we had originally estimated, we accelerate the rate of depreciation over the assets' new, shorter useful lives.

Goodwill is recorded when the purchase price of an acquisition exceeds the fair value of the net tangible and identified intangible assets acquired. Goodwill is allocated to our reporting units based on the relative expected fair value provided by the acquisition. Reporting units may be operating segments as a whole or an operation one level below an operating segment, referred to as a component. Goodwill is attributable to the Prescription Drugs and Consumer Health (PRC) business under the Commercial Platform.

We perform an annual impairment assessment in the fourth quarter of each year, or more frequently if indicators of potential impairment exist, to determine whether it is more likely than not that the fair value of a reporting unit in which goodwill resides is less than its carrying value. For reporting units in which this assessment concludes that it is more likely than not that the fair value is more than its carrying value, goodwill is not considered impaired and we are not required to perform the goodwill impairment test. Qualitative factors considered in this assessment include industry and market considerations, overall financial performance, and other relevant events and factors affecting the reporting unit. Additionally, as part of this assessment, we may perform a quantitative analysis to support the qualitative factors above by applying sensitivities to assumptions and inputs used in measuring a reporting unit's fair value. For reporting units in which the impairment assessment concludes that it is more likely than not that the fair value is less than its carrying value, we perform the goodwill impairment test, which compares the fair value of the reporting unit to its carrying value. If the fair value of the reporting unit exceeds the carrying value of the net assets assigned to that reporting unit, goodwill is not considered impaired. If the carrying value of the net assets assigned to the reporting unit exceeds the fair value of the reporting unit, an impairment loss shall be recognized in an amount equal to that excess, limited to the total amount of goodwill allocated to that reporting unit.

Our goodwill impairment test uses the income method to estimate a reporting unit's fair value. The income method is based on a discounted future cash flow approach that uses the following assumptions and inputs: revenue, based on assumed market segment growth rates; estimated costs; and appropriate discount rates based on a reporting unit's weighted average cost of capital as determined by considering the observable weighted average cost of capital of comparable companies. Our estimates of market

segment growth and costs are based on historical data, various internal estimates, and a variety of external sources. These estimates are developed as part of our routine long-range planning process. We test the reasonableness of the inputs and outcomes of our discounted cash flow analysis against available comparable market data. A reporting unit's carrying value represents the assignment of various assets and liabilities, excluding certain corporate assets and liabilities, such as cash, investments, and debt. We performed the goodwill impairment test and determined that the fair values of the reporting units exceeded their carrying values and considered that impairment was not necessary for any reporting unit.

Our equity method investments represent our investments in our non-consolidated joint ventures. All of these are in non-marketable equity investments. Non-marketable equity investments are inherently risky, and their success depends on their ability to generate revenues, remain profitable, operate efficiently and raise additional funds and other key business factors. The companies could fail or not be able to raise additional funds when needed, or they may receive lower valuations with less favorable investment terms. These events could cause our investments to become impaired. In addition, financial market volatility could negatively affect our ability to realize value in our investments through liquidity events such as initial public offerings, mergers, and private sales.

We consider if our equity method investments are impaired when events or circumstances suggest that their carrying amounts may not be recoverable. An impairment charge would be recognized in earnings for a decline in value that is determined to be other-than-temporary. This is based on our quantitative and qualitative analysis, which includes assessing the severity and duration of the impairment and the likelihood of recovery before disposal. The investments are recorded at fair value only if impairment is recognized. The recognition of impairment and measurement of fair value requires significant judgment and includes a qualitative and quantitative analysis of events or circumstances that impact the fair value of the investment. Qualitative analysis of our investments involves understanding our investee's revenue and earnings trends relative to pre-defined milestones and overall business prospects, the technological feasibility of our investee's products and technologies, the general market conditions in the investee's industry or geographic area including adverse regulatory or economic changes, and the management and governance structure of the investee. We performed the qualitative and quantitative analysis and determined that events or circumstances did not suggest that the carrying amount of each of our equity method investments may not be recoverable and that impairment was not necessary.

We derive our consolidated revenue primarily from (i) licensing and collaboration projects conducted by our Innovation Platform, which generates revenue in the form of upfront payments, milestone payments, payments received for providing research and development services for our collaboration projects and royalties on product sales, as well as sales of goods and services to third parties and related parties; and (ii) the sales of goods and services by our Commercial Platform, which generates revenue from the distribution and marketing of prescription pharmaceutical products by our Prescription Drugs business and consumer health products by our Consumer Health business.

We changed our accounting policy for revenue recognition upon the adoption of ASC 606, Revenue from Contracts with Customers, in 2018. This new standard primarily impacted our Innovation Platform's license and collaboration contracts which resulted in an aggregate $1.1 million deferral on January 1, 2018 of previously recognized revenue. There was no significant impact on sales of goods and services under the Commercial Platform. Details of the adoption of this new standard are described in the "—Recently Issued Accounting Standards" section below.

The following table sets forth the components of our consolidated revenue for the years indicated, which does not include the revenue from our Commercial Platform's non-consolidated joint ventures, Shanghai Hutchison Pharmaceuticals and Hutchison Baiyunshan. Our revenue from research and development projects for related parties is attributable to income for research and development services that we receive primarily from Nutrition Science Partners, our non-consolidated joint venture with Nestlé Health Science. Our revenue from sales to related parties is attributable to sales by our Commercial Platform to indirect subsidiaries of CK Hutchison.

	Year Ended December 31,

	2018		2017		2016
	$'000	%	$'000	%	$'000	%
Revenue
Innovation Platform:
Goods—third parties	3,324	1.6	—	—	—	—
Services:
Collaboration R&D—third parties	17,681	8.3	16,858	7.0	16,513	7.6
R&D services—third parties	—	—	—	—	355	0.2
R&D services—related parties	7,832	3.6	9,682	4.0	8,429	3.9
Other collaboration revenue:
Royalties—third parties	261	0.1	—	—	—	—
Licensing—third parties	12,135	5.7	9,457	3.9	9,931	4.6

Subtotal	41,233	19.3	35,997	14.9	35,228	16.3

Commercial Platform:
Goods—third parties	152,910	71.4	194,860	80.8	171,058	79.2
Goods—related parties	8,306	3.9	8,486	3.5	9,794	4.5
Commercialization services—third parties	11,660	5.4	1,860	0.8	—	—

Subtotal	172,876	80.7	205,206	85.1	180,852	83.7

Total	214,109	100.0	241,203	100.0	216,080	100.0

Our Innovation Platform's revenue primarily comprises revenue recognized in our consolidated financial statements under licensing, co-development and commercialization agreements for upfront and milestone payments for our drug candidates developed in collaboration with, among others, AstraZeneca and Eli Lilly, as well as income from research and development services that we receive from certain of our partners, including, among others, AstraZeneca and Eli Lilly as well as Nutrition Science Partners. Additionally, in November 2018, we launched commercial sales of Elunate in China which resulted in new revenue for sales of goods and royalties earned from Eli Lilly. Our Innovation Platform revenue also includes income from research and development services provided to other third parties and related parties, which are not related to our licensing and collaboration agreements.

The following table sets forth the components of our consolidated revenue contributed by the two core business areas of our Commercial Platform, namely Prescription Drugs and Consumer Health, for the years indicated.

Our Prescription Drugs business's revenue primarily comprises revenue from the commercial services, logistics and distribution business of our consolidated Hutchison Sinopharm joint venture with Sinopharm, a leading distributor of pharmaceutical and healthcare products and a leading supply chain service provider in China.

The revenue of our Prescription Drugs business's non-consolidated joint venture, Shanghai Hutchison Pharmaceuticals, the accounts of which are prepared in accordance with IFRS as issued by the IASB and whose revenue is not included in our consolidated revenue, was $222.4 million, $244.6 million and $275.7 million for the years ended December 31, 2016, 2017 and 2018, respectively. Shanghai Hutchison Pharmaceuticals is a joint venture with Shanghai Pharmaceuticals, a leading pharmaceuticals company in China, and primarily focuses on the manufacture and sale of prescription pharmaceutical products in China. We and Shanghai Pharmaceuticals each own 50% of this joint venture. We have the right to nominate the general manager and other management of this joint venture and run its day-to-day operations. The effect of Shanghai Hutchison Pharmaceuticals on our consolidated financial results is discussed below under "—Equity in Earnings of Equity Investees."

Our Consumer Health business's revenue primarily comprises revenue from sales of organic and natural products by Hutchison Hain Organic, our 50% consolidated joint venture with Hain Celestial, a Nasdaq-listed, natural and organic food and personal care products company. We consolidate the results of this joint venture into our results of operations as we own 50% of its equity and hold an additional casting vote in the event of a deadlock. Our Consumer Health business's revenue is also comprised of revenue from sales of Zhi Ling Tong infant nutrition and other health supplement products manufactured by Hutchison Healthcare, our wholly owned subsidiary, and distributed through Hutchison Sinopharm, and certain third-party consumer products distributed and marketed by Hutchison Consumer Products, a wholly owned subsidiary.

The revenue of our Consumer Health business's non-consolidated joint venture, Hutchison Baiyunshan, the accounts of which are prepared in accordance with IFRS as issued by the IASB and whose revenue is not included in our consolidated revenue, was $224.1 million, $227.4 million and $215.8 million for the years ended December 31, 2016, 2017 and 2018, respectively. Hutchison Baiyunshan is a joint venture with Guangzhou Baiyunshan, a leading China-based pharmaceutical company, and primarily focuses on the manufacture and distribution of over-the-counter pharmaceutical products in China. Our interest in Hutchison Baiyunshan is held through an 80%-owned subsidiary of ours, Hutchison BYS (Guangzhou) Holding Limited, which owns 50% of that joint venture, with the other 50% interest held by Guangzhou Baiyunshan. The effect of Hutchison Baiyunshan on our consolidated financial results is discussed under "—Equity in Earnings of Equity Investees."

Our cost of sales are primarily attributable to the cost of sales of our Prescription Drugs business's consolidated Hutchison Sinopharm joint venture as well as the cost of sales of our Consumer Health business. Our cost of sales to related parties is attributable to sales by our Consumer Health business to indirect subsidiaries of CK Hutchison. The following table sets forth the components of our cost of sales attributable to third parties and related parties for the years indicated.

The following table sets forth the components of our cost of sales attributable to the two core business areas of our Commercial Platform, namely Prescription Drugs and Consumer Health, for the years indicated.

Our Prescription Drugs business's costs of sales primarily comprises the cost of goods sold, transportation costs and cost of services incurred by Hutchison Sinopharm.

Our Consumer Health business's costs of sales primarily comprises the cost of goods sold by Hutchison Hain Organic, which mainly purchases its product inventory from Hain Celestial, for distribution in Asian markets, as well as the cost of goods sold, contract packing and transportation costs incurred by Hutchison Healthcare and Hutchison Consumer Products.

Our Innovation Platform also incurs cost of sales primarily comprising the cost of goods sold and transportation costs incurred by Hutchison MediPharma, which manufactures Elunate for sale in China.

Our research and development expenses are attributable to our Innovation Platform. These costs primarily comprise the cost of research and development for our drug candidates, including clinical trial related costs such as payments to third-party CROs, personnel compensation and related costs, and other

research and development expenses. The following table sets forth the components of our research and development expenses for the years indicated.

The following table summarizes for the years indicated the research and development expenses incurred for the development of our main drug candidates as well as the personnel compensation and other research and development expenses incurred by our Innovation Platform.

	Year Ended December 31,

	2018		2017		2016
	$'000	%	$'000	%	$'000		%
Savolitinib (targeting c-Met)	11,749	10.3	9,146	12.1	4,945		7.4
Fruquintinib (targeting VEGFR1/2/3)	17,423	15.3	15,660	20.7	12,908		19.3
Surufatinib (targeting VEGFR/FGFR1/CSF-1R)	20,996	18.4	7,726	10.2	10,815		16.2
Epitinib (targeting EGFRm+ with brain metastasis)	3,448	3.0	3,141	4.2	1,994		3.0
Theliatinib (targeting EGFR wild-type)	1,399	1.2	1,023	1.4	699		1.0
HMPL-523 (targeting Syk)	7,562	6.6	1,875	2.5	4,112		6.2
HMPL-689 (targeting PI3Kd)	2,113	1.8	1,140	1.5	2,084		3.1
HMPL-453 (targeting FGFR)	2,082	1.8	1,558	2.1	1,231		1.8
Others and government grant	6,921	6.1	3,981	5.2	(199	)	(0.3	)

Total clinical trial related costs	73,693	64.5	45,250	59.9	38,589		57.7
Personnel compensation and related costs	35,340	31.0	24,848	32.9	21,698		32.4
Other costs	5,128	4.5	5,425	7.2	6,584		9.9

Total R&D expenses	114,161	100.0	75,523	100.0	66,871		100.0

In addition to the research and development costs shown above, the table below summarizes the research and development costs and impairment provision incurred by our non-consolidated Nutrition Science Partners joint venture, primarily in relation to the development of our drug candidate HMPL-004/HM004-6599. The losses incurred by this joint venture during the periods indicated were reflected on our consolidated statements of operations in the equity in earnings of equity investees line item. The consolidated financial statements of Nutrition Science Partners are prepared in accordance with

IFRS as issued by the IASB and are presented separately elsewhere in this annual report. For more information on this joint venture, see "—Equity in Earnings of Equity Investees."

We cannot determine with certainty the duration and completion costs of the current or future pre-clinical or clinical studies of our drug candidates or if, when, or to what extent we will generate revenues from the commercialization and sale of any of our drug candidates that obtain regulatory approval. We may never succeed in achieving regulatory approval for any of our drug candidates. The duration, costs, and timing of clinical studies and development of our drug candidates will depend on a variety of factors, including:

A change in the outcome of any of these variables with respect to the development of a drug candidate could mean a significant change in the costs and timing associated with the development of that drug candidate.

For more information on the risks associated with the development of our drug candidates, see Item 3.D. "Risk Factors—Risks Related to Our Innovation Platform—All of our drug candidates, other than fruquintinib for one indication in China, are still in development. If we are unable to obtain regulatory approval and ultimately commercialize our drug candidates, or if we experience significant delays in doing so, our business will be materially harmed."

The following table sets forth the components of our selling expenses for each of our business units for the years indicated.

Our selling expenses primarily comprise sales and marketing expenses and related personnel expenses incurred by the Prescription Drugs and Consumer Health businesses of our Commercial Platform in their distribution and marketing of pharmaceutical and consumer health products.

The following table sets forth the components of our administrative expenses for each of our business units for the years indicated. Administrative expenses are also incurred by our corporate head office, which are not allocated to our business units.

Our Innovation Platform's administrative expenses primarily comprise the salaries and benefits of administrative staff, office leases and other overhead expenses incurred by our Innovation Platform.

Our Prescription Drug business's administrative expenses primarily comprise the salaries and benefits of administrative staff, office leases and other overhead expenses incurred by Hutchison Sinopharm.

Our Consumer Health business's administrative expenses primarily comprise the salaries and benefits of administrative staff, office leases and other overhead expenses incurred by Hutchison Hain Organic and Hutchison Healthcare.

Our corporate head office administrative expenses, which are not allocated to our business units, primarily comprise the salaries and benefits of our corporate head office employees and directors, office leases and other overhead expenses.

We have historically derived a significant portion of our net income from our equity in earnings of equity investees, which was primarily attributable to two of our Commercial Platform's non-consolidated

joint ventures, Shanghai Hutchison Pharmaceuticals and Hutchison Baiyunshan, partially offset by losses at our Innovation Platform's non-consolidated joint venture, Nutrition Science Partners. Our equity in earnings of equity investees (net of tax) contributed by the non-consolidated joint ventures from our Commercial Platform, Shanghai Hutchison Pharmaceuticals and Hutchison Baiyunshan, was $70.5 million, $38.2 million and $38.3 million for the years ended December 31, 2016, 2017 and 2018, respectively. Equity in earnings of Shanghai Hutchison Pharmaceuticals included one-time gains of $40.4 million, $2.5 million and nil in the years ended December 31, 2016, 2017 and 2018, respectively, net of tax, from land compensation and other government subsidies paid to Shanghai Hutchison Pharmaceuticals by the Shanghai government.

Our equity in earnings of equity investees (net of tax) contributed by our Innovation Platform was losses of $4.2 million, $4.5 million and $19.0 million for the years ended December 31, 2016, 2017 and 2018, respectively, which were primarily attributable to losses at Nutrition Science Partners, which has historically incurred significant losses attributable to research and development expenses, the cost of clinical trials for the drug candidate HMPL-004/HM004-6599 and the full impairment provision of its $30.0 million intangible asset in the year ended December 31, 2018 of which our attributable portion was $15.0 million.

Revenue of Shanghai Hutchison Pharmaceuticals and Hutchison Baiyunshan are mainly affected by the sales volume and pricing of their prescription and over-the-counter pharmaceutical products. Nutrition Science Partners had no revenue for the years ended December 31, 2016, 2017 and 2018. The consolidated financial statements of Shanghai Hutchison Pharmaceuticals, Hutchison Baiyunshan and Nutrition Science Partners are presented separately elsewhere in this annual report.

The following table shows the revenue of these three non-consolidated joint ventures for the years indicated. The consolidated financial statements of these joint ventures are prepared in accordance with IFRS as issued by the IASB and are presented separately elsewhere in this annual report.

The following table shows the amount of equity in earnings of equity investees (net of tax), and as a percentage of our total consolidated revenue, of our non-consolidated joint ventures for the years indicated.

The following table sets forth a summary of our consolidated results of operations for the years indicated, both in absolute amounts and as percentages of our revenues. This information should be read together with our consolidated financial statements and related notes included elsewhere in this annual report. Our operating results in any period are not necessarily indicative of the results that may be expected for any future period.

	Year Ended December 31,

	2018				2017				2016
	$'000		%		$'000		%		$'000		%
Revenues	214,109		100.0		241,203		100.0		216,080		100.0
Cost of sales	(143,944	)	(67.2	)	(175,820	)	(72.9	)	(156,328	)	(72.4	)
Research and development expenses	(114,161	)	(53.3	)	(75,523	)	(31.3	)	(66,871	)	(31.0	)
Selling expenses	(17,736	)	(8.3	)	(19,322	)	(8.0	)	(17,998	)	(8.3	)
Administrative expenses	(30,909	)	(14.4	)	(23,955	)	(9.9	)	(21,580	)	(10.0	)
Other income/(expense)	5,986		2.8		(119	)	(0.0	)	(659	)	(0.3	)
Income tax expense	(3,964	)	(1.9	)	(3,080	)	(1.3	)	(4,331	)	(2.0	)
Equity in earnings of equity investees, net of tax	19,333		9.0		33,653		13.9		66,244		30.7

Net (loss)/income	(71,286	)	(33.3	)	(22,963	)	(9.5	)	14,557		6.7



Net (loss)/income attributable to our company	(74,805	)	(34.9	)	(26,737	)	(11.1	)	11,698		5.4

Our operating profit/(loss) represents the sum of (i) earnings/(losses) before interest income, interest expenses and income tax expenses; (ii) interest income; and (iii) our equity in earnings of equity investees.

Hutchison China MediTech Limited is incorporated in the Cayman Islands. The Cayman Islands currently levies no taxes on profits, income, gains or appreciation earned by individuals or corporations. In addition, our payment of dividends, if any, is not subject to withholding tax in the Cayman Islands. For more information, see Item 10.E. "Taxation—Overview of Tax Implications of Various Other Jurisdictions—Cayman Islands Taxation."

Our subsidiaries and joint ventures incorporated in the PRC are governed by the PRC EIT Law and regulations. Under the EIT Law, the standard EIT rate is 25% on taxable profits as reduced by available tax losses. Tax losses may be carried forward to offset any taxable profits for the following five years (ten years for those with HNTE status, with effective from 1 January 2018). Our subsidiary, Hutchison MediPharma, was granted the TASE status from January 1, 2010 to December 31, 2018, and has been successful in its application to renew its HNTE status from January 1, 2017 to December 31, 2019; whereas our non-consolidated joint ventures, Hutchison Baiyunshan and Shanghai Hutchison Pharmaceuticals, have been successful in their respective applications to renew their HNTE status from January 1, 2017 to December 31, 2019. Accordingly, these entities were subject to a preferential EIT rate of 15% for the years ended December 31, 2016, 2017 and 2018. Hutchison MediPharma (Suzhou) Limited, a wholly-owned subsidiary of Hutchison MediPharma, has successfully applied for the HNTE status in 2018 which will tentatively last three years from January 1, 2018 to December 31, 2020.

For more information, see Item 10.E. "Taxation—Taxation in the PRC." Please also see Item. 3 "Key Information—Risk Factors—Our business benefits from certain PRC government tax incentives. The expiration of, changes to, or our PRC subsidiaries/joint ventures failing to continuously meet the criteria for these incentives could have a material adverse effect on our operating results by significantly increasing our tax expenses."

Hutchison China MediTech Limited and certain subsidiaries which have registered a branch in Hong Kong and are Hong Kong tax residents, as well as our subsidiaries incorporated in Hong Kong, are governed by applicable Hong Kong income tax laws and regulations. As such, they are subject to Hong Kong Profits Tax at the rate of 16.5% on their assessable profits as reduced by available tax losses for the years ended December 31, 2016, 2017 and 2018.

According to the EIT Law, dividends declared after January 1, 2008 and paid by PRC foreign-invested enterprises to their non-PRC parent companies will be subject to PRC withholding tax at 10% unless there is a tax treaty between the PRC and the jurisdiction in which the overseas parent company is a tax resident and which specifically exempts or reduces such withholding tax, and such tax exemption or reduction is approved by the relevant PRC tax authorities. Pursuant to the Arrangement, if the shareholder of the PRC enterprise is a Hong Kong tax resident and directly holds a 25% or more equity interest in the PRC enterprise and is considered to be the beneficial owner of dividends paid by the PRC enterprise, such withholding tax rate may be lowered to 5%, subject to approvals by the relevant PRC tax authorities. For more information, see Item 10.E. "Taxation—Taxation in the PRC" and "Taxation—Hong Kong Taxation."

Our revenue decreased by 11.2% from $241.2 million for the year ended December 31, 2017 to $214.1 million for the year ended December 31, 2018, resulting from decreased revenue from our Commercial Platform.

Revenue from our Commercial Platform decreased by 15.8% from $205.2 million for the year ended December 31, 2017 to $172.9 million for the year ended December 31, 2018, primarily due to a decrease in revenue from our Prescription Drugs business. Revenue from our Prescription Drugs business decreased by 20.2% from $166.4 million for the year ended December 31, 2017 to $132.8 million for year ended December 31, 2018, primarily due to the implementation of the two-invoice system in China since October 2017. As a result, we started recording the service fees we earn from the distribution of certain third-party drugs instead of recording the gross sales of such products as we had done previously. The implementation of the two-invoice system has been a gradual and ongoing process in China, and we expect that the revenue from our Prescription Drugs business may experience further impact in the fiscal year 2019. Revenue from our Consumer Health business increased by 3.3% from $38.8 million for the year ended December 31, 2017 to $40.1 million for the year ended December 31, 2018, which was primarily attributable to increased sales of the Zhi Ling Tong infant nutrition and other health supplement products.

Revenue from our Innovation Platform increased by 14.5% from $36.0 million for the year ended December 31, 2017 to $41.2 million for the year ended December 31, 2018. The increase was attributable to a higher level of milestone payments that we received from our collaboration partners, including the milestone payment of $13.5 million that we received from Eli Lilly following the approval in September 2018 of fruquintinib capsules for drug registration in China for the treatment of metastatic colorectal cancer patients who have failed at least two prior systemic antineoplastic therapies, and $3.6 million from the sales and royalties of Elunate in China.

Our Commercial Platform's results of operations are affected by seasonality. For more information, see "—Factors Affecting our Results of Operations—Commercial Platform—Seasonality."

Our costs of sales decreased by 18.1% from $175.8 million for the year ended December 31, 2017 to $143.9 million for the year ended December 31, 2018. This decrease was in line with the decrease in our Commercial Platform revenue across these periods. Costs of sales as a percentage of our revenue from our Commercial Platform decreased from 85.7% to 82.4% across these periods due to the change to recording more services fees and to selling less lower margin third-party drugs.

Our research and development expenses increased by 51.2% from $75.5 million for the year ended December 31, 2017 to $114.2 million for the year ended December 31, 2018, which was primarily attributable to a $28.4 million increase in payments to CROs and other clinical trial related costs and an $10.5 million increase in employee compensation related costs. These increased costs incurred by our Innovation Platform were due to a significant expansion of clinical activities and rapid organizational growth to support such expansion. In particular, this increase was attributable to the expansion of the surufatinib, HMPL-523 and fruquintinib development programs. As a result, research and development expenses as a percentage of our revenue increased from 31.3% to 53.3% across these periods.

Our selling expenses decreased by 8.2% from $19.3 million for the year ended December 31, 2017 to $17.7 million for the year ended December 31, 2018. This decrease was primarily driven by a $3.0 million

decrease in selling expenses under our Prescription Drugs business as the implementation of the two-invoice system caused us to start recording the costs associated with the service fees we earn from the distribution of certain third-party drugs as costs of sales instead of selling expenses as we had done previously. Selling expenses as a percentage of our revenue from our Commercial Platform increased slightly from 9.4% to 10.3% across these periods primarily due to the decrease in our Commercial Platform revenue.

Our administrative expenses increased by 29.0% from $24.0 million for the year ended December 31, 2017 to $30.9 million for the year ended December 31, 2018. This increase was primarily due to a $3.0 million increase in administrative expenses incurred by our Innovation Platform, which mainly related to the increased staff cost to support the rapid expansion of our clinical activities and increased office expenses as we started to rent a new research and development facility in Shanghai in early 2018. Administrative expenses as a percentage of our revenue increased from 9.9% to 14.4% across these periods.

We had other expenses of $0.1 million for the year ended December 31, 2017, compared to other income of $6.0 million for the year ended December 31, 2018, primarily due to a higher level of interest income earned from the proceeds received from our follow-on offering in October 2017, which increased from $1.2 million for the year ended December 31, 2017 to $6.0 million for the year ended December 31, 2018. In addition, the increase in other income also resulted from the receipt of a new government grant by Hutchison Sinopharm as well as higher payments to us by the depositary bank which administers our ADS program in the year ended December 31, 2018 due to a higher number of our ADSs issued and eligible for compensation under the program.

Our interest expense decreased from $1.5 million for the year ended December 31, 2017 to $1.0 million for the year ended December 31, 2018, primarily due to a decrease in the guarantee fee payments on bank loans from $0.3 million in the year ended December 31, 2017 to nil in the year ended December 31, 2018.

Our income tax expense increased by 28.7% from $3.1 million for the year ended December 31, 2017 to $4.0 million for the year ended December 31, 2018 primarily due to a higher level of taxable income from our Commercial Platform.

Our equity in earnings of equity investees, net of tax, decreased by 42.6% from $33.7 million for the year ended December 31, 2017 to $19.3 million for the year ended December 31, 2018. This decrease was primarily due to an increase in net loss at Nutrition Science Partners, our Innovation Platform's non-consolidated joint venture.

The following table shows a summary of the results of operations of Shanghai Hutchison Pharmaceuticals for the years indicated. The consolidated financial statements of Shanghai Hutchison

Pharmaceuticals are prepared in accordance with IFRS as issued by the IASB and are presented separately elsewhere in this annual report.

Shanghai Hutchison Pharmaceuticals' revenue increased by 12.7% from $244.6 million for the year ended December 31, 2017 to $275.7 million for the year ended December 31, 2018, which was primarily due to increased sales of She Xiang Bao Xin pills, a vasodilator used in the treatment of heart conditions. Sales of She Xiang Bao Xin pills grew by 11.4% from $209.2 million for the year ended December 31, 2017 to $233.1 million for the year ended December 31, 2018, primarily due to continued price increases and geographical expansion of sales coverage. Additionally, other GSP product and service revenue increased by 27.6% from $18.1 million for the year ended December 31, 2017 to $23.1 million for the year ended December 31, 2018, primarily due to the higher provision of services from increased sales of Seroquel.

Cost of sales increased by 20.6% from $68.6 million for the year ended December 31, 2017 to $82.7 million for the year ended December 31, 2018, primarily due to increased cost of goods sold as a result of increased sales of She Xiang Bao Xin pills and the GSP product and service revenue.

Selling expenses during these periods increased by 7.2% from $104.5 million for the year ended December 31, 2017 to $112.0 million for the year ended December 31, 2018 as a result of increased spending on marketing and promotional activities to support the increase in sales.

Administrative expenses increased by 9.5% from $13.3 million for the year ended December 31, 2017 to $14.5 million for the year ended December 31, 2018 due to an increase in general overhead costs incurred.

Taxation charge decreased by 13.8% from $10.9 million for the year ended December 31, 2017 to $9.3 million for the year ended December 31, 2018, which was due to lower taxable profit primarily resulting from an increase of tax deductible research and development expenses of $0.4 million as well as the recognition of $0.7 million deferred tax assets on temporary differences arising from advertising and promotion expenditures incurred prior to 2018.

As a result of the foregoing, profit increased by 7.5% from $55.6 million for the year ended December 31, 2017 to $59.8 million for the year ended December 31, 2018. Our equity in earnings of equity investees contributed by this joint venture was $27.8 million and $29.9 million for the years ended December 31, 2017 and 2018, respectively.

The following table shows a summary of the results of operations of Hutchison Baiyunshan for the years indicated. The consolidated financial statements of Hutchison Baiyunshan are prepared in accordance with IFRS as issued by the IASB and are presented separately elsewhere in this annual report.

Hutchison Baiyunshan's revenue decreased by 5.1% from $227.4 million for the year ended December 31, 2017 to $215.8 million for the year ended December 31, 2018 due to the divestment of one of its subsidiaries in September 2017, which was partially offset by a moderate to severe flu season and the elimination of manufacturing capacity constraints which increased sales of certain of its drug products in 2018.

Cost of sales decreased by 24.5% from $136.0 million for the year ended December 31, 2017 to $102.7 million for the year ended December 31, 2018, primarily due to the divestment of one of its subsidiaries in September 2017.

Selling expenses during these periods increased by 55.8% from $45.3 million for the year ended December 31, 2017 to $70.5 million for the year ended December 31, 2018 due to Hutchison Baiyunshan directly managing more marketing activities for its distributors to promote broader awareness and consistent messaging for Hutchison Baiyunshan's products.

Administrative expenses increased by 5.9% from $24.5 million for the year ended December 31, 2017 to $26.0 million for the year ended December 31, 2018 due to an increase in general overhead costs incurred.

Taxation charge increased by 16.5% from $3.6 million for the year ended December 31, 2017 to $4.2 million for the year ended December 31, 2018 which includes reductions to deferred tax assets of US$0.7 million for the year ended December 31, 2018 based on the likelihood of such asset being utilized in the near future.

As a result of the foregoing, profit attributable to equity holders of Hutchison Baiyunshan decreased by 18.8% from $20.8 million for the year ended December 31, 2017 to $16.9 million for the year ended December 31, 2018. Our equity in earnings of equity investees contributed by this joint venture was $10.4 million and $8.4 million for the years ended December 31, 2017 and 2018, respectively.

The following table shows a summary of the results of operations of Nutrition Science Partners for the years indicated. The consolidated financial statements of Nutrition Science Partners are prepared in accordance with IFRS as issued by the IASB and are presented separately elsewhere in this annual report.

Nutrition Science Partners had losses of $9.2 million and $38.2 million for the years ended December 31, 2017 and 2018, respectively. Nutrition Science Partners had no revenue during these years. The increase in net loss across these periods was primarily attributable the full impairment provision recorded for its $30.0 million intangible asset related to in-progress research and development projects. Our equity in earnings of equity investees contributed by this joint venture were losses of $4.6 million and $19.1 million for the years ended December 31, 2017 and 2018, respectively.

For more information on the financial results of our non-consolidated joint ventures, see "—Key Components of Results of Operations—Equity in Earnings of Equity Investees."

As a result of the foregoing, our net loss increased from a net loss of $23.0 million for the year ended December 31, 2017 to a net loss of $71.3 million for the year ended December 31, 2018. Net loss attributable to our company increased from a net loss of $26.7 million for the year ended December 31, 2017 to a net loss of $74.8 million for the year ended December 31, 2018.

Our operating loss increased from $18.4 million for the year ended December 31, 2017 to $66.3 million for the year ended December 31, 2018, as a result of a significant increase in the operating loss of our Innovation Platform from $52.0 million for the year ended December 31, 2017 to $102.6 million for the year ended December 31, 2018, partially offset by a slight increase in operating profit of our Commercial Platform from $45.1 million for the year ended December 31, 2017 to $47.0 million for the year ended December 31, 2018. The increase in the operating loss of our Innovation Platform across these periods was primarily due to a significant expansion of our clinical activities and an increase in the number of staff and other organizational growth to support such expansion.

Our revenues increased by 11.6% from $216.1 million for the year ended December 31, 2016 to $241.2 million for the year ended December 31, 2017.

This increase was driven by a $24.4 million increase in revenue for the year ended December 31, 2017 from our Commercial Platform, representing a 13.5% increase from the revenue of $180.9 million for the year ended December 31, 2016. The consolidated revenue from our Prescription Drugs business increased by $16.6 million from $149.8 million for the year ended December 31, 2016 to $166.4 million for the year ended December 31, 2017. The increase was primarily attributable to the growth in our third-party drug distribution business. The consolidated revenue from our Consumer Health business also increased by

$7.8 million from $31.0 million for the year ended December 31, 2016 to $38.8 million for the year ended December 31, 2017. The increase was primarily attributable to higher levels of infant nutrition products and personal care products sold in 2017. The consolidated revenue from our Innovation Platform increased slightly by $0.8 million from $35.2 million for the year ended December 31, 2016 to $36.0 million for the year ended December 31, 2017. The increase was attributable to a higher level of service fees that we received from our joint ventures.

Our Commercial Platform's results of operations are affected by seasonality. For more information, see "—Factors Affecting our Results of Operations—Commercial Platform—Seasonality."

Our cost of sales increased by 12.5% from $156.3 million for the year ended December 31, 2016 to $175.8 million for the year ended December 31, 2017. This increase was primarily driven by a $15.4 million increase in cost of sales from Hutchison Sinopharm under our Prescription Drugs business, as well as a $4.0 million increase in cost of sales from Hutchison Hain Organic under our Consumer Health business. Cost of sales as a percentage of our revenue from our Commercial Platform decreased from 86.4% to 85.7% across these periods, primarily due to product mix resulting in an increased proportion of sales of higher margin products.

Our research and development expenses increased by 12.9% from $66.9 million for the year ended December 31, 2016 to $75.5 million for the year ended December 31, 2017, which was primarily attributable to a $5.5 million increase in payments to CROs and other clinical trial related costs and a $3.1 million increase in employee compensation related costs. These increased costs incurred by our Innovation Platform was due to a significant expansion of clinical activities and rapid organization growth to support these clinical activities. The number of ongoing clinical studies for our drug candidates increased from studies in 30 target patient populations as of December 31, 2016 to studies in 36 target patient populations as of December 31, 2017. In particular, this increase was attributable to the expansion of the savolitinib and fruquintinib development programs. As a result, research and development expenses as a percentage of our total revenue increased from 31.0% in the year ended December 31, 2016 to 31.3% in the year ended December 31, 2017.

Our selling expenses increased by 7.4% from $18.0 million for the year ended December 31, 2016 to $19.3 million for the year ended December 31, 2017. This increase was primarily driven by a $0.9 million increase in selling expenses under our Consumer Health business and a $0.4 million increase in selling expenses under our Prescription Drugs business. Selling expenses as a percentage of our revenue from our Commercial Platform decreased from 10.0% to 9.4% across these periods, primarily due to increased sales by our third-party Prescription Drug distribution and Consumer Health businesses.

Our administrative expenses increased by 11.0% from $21.6 million for the year ended December 31, 2016 to $24.0 million for the year ended December 31, 2017. This increase was primarily due to a $1.2 million and $0.9 million increase in administrative expenses incurred by our Innovation Platform and corporate head office, mainly related to the increased staff cost, office expenses and organization and third-party advisor costs as a result of operating as a U.S. public company for a full calendar year. Administrative expenses had remained relatively stable as a percentage of our total revenue.

Total other expenses decreased from $0.7 million for the year ended December 31, 2016 to $0.1 million for the year ended December 31, 2017, primarily due to higher interest income offset by higher foreign currency translation loss.

Our interest income increased from $0.5 million for the year ended December 31, 2016 to $1.2 million for the year ended December 31, 2017. The increase was attributable to a higher level of bank deposits after receiving proceeds from our follow-on offering in October 2017. Our interest expense decreased slightly from $1.6 million for the year ended December 31, 2016 to $1.5 million for the year ended December 31, 2017. These interest expenses primarily comprised interest and guarantee fee payments on bank loans in 2016 and 2017.

Our income tax expense decreased by 28.9% from $4.3 million for the year ended December 31, 2016 to $3.1 million for the year ended December 31, 2017 due to a decrease in withholding taxes accrued on the net income from our Commercial Platform businesses for the year ended December 31, 2017. The higher withholding tax accrued for the year ended December 31, 2016 was due to equity in earnings of Shanghai Hutchison Pharmaceuticals including a one-time gain of $40.4 million relating to land compensation and other government subsidies.

Our equity in earnings of equity investees, net of tax, decreased by 49.2% from $66.2 million for the year ended December 31, 2016 to $33.7 million for the year ended December 31, 2017. This decrease was primarily due to a decrease in net income at our Commercial Platform's non-consolidated joint ventures as well as an increase in net loss at Nutrition Science Partners, our Innovation Platform's non-consolidated joint venture. Our equity in earnings of Shanghai Hutchison Pharmaceuticals included one-time gains, net of tax, of $40.4 million from land compensation and other government subsidies in the year ended December 31, 2016 and $2.5 million from government subsidies in the year ended December 31, 2017 in each case paid to Shanghai Hutchison Pharmaceuticals by the Shanghai government.

The following table shows a summary of the results of operations of Shanghai Hutchison Pharmaceuticals for the years indicated. The consolidated financial statements of Shanghai Hutchison Pharmaceuticals are prepared in accordance with IFRS as issued by the IASB and are presented separately elsewhere in this annual report.

Shanghai Hutchison Pharmaceuticals' revenue increased by 10.0% from $222.4 million for the year ended December 31, 2016 to $244.6 million for the year ended December 31, 2017, which was primarily due to increased sales of She Xiang Bao Xin pills, a vasodilator used in the treatment of heart conditions. Sales of She Xiang Bao Xin pills grew by 7.1% from $195.4 million for the year ended December 31, 2016 to $209.2 million for the year ended December 31, 2017, primarily due to continued price increases and geographical expansion of sales coverage.

Cost of sales increased by 6.8% from $64.2 million for the year ended December 31, 2016 to $68.6 million for the year ended December 31, 2017, primarily due to increased cost of goods sold as a result of increased sales of She Xiang Bao Xin pills.

Selling expenses during these periods increased by 13.0% from $92.5 million for the year ended December 31, 2016 to $104.5 million for the year ended December 31, 2017 as a result of increased spending on marketing and promotional activities to support the increase in sales.

Administrative expenses remained relatively stable at $13.3 million for the years ended December 31, 2016 and 2017.

Taxation charge decreased by 60.7% from $27.6 million for the year ended December 31, 2016 to $10.9 million for the year ended December 31, 2017, which was primarily due to the decrease in profit before taxation between these periods.

As a result of the foregoing and the one-time gain of $40.4 million from land compensation and other government subsidies received from the Shanghai government in 2016 which did not occur in 2017, profit decreased by 53.8% from $120.5 million for the year ended December 31, 2016 to $55.6 million for the year ended December 31, 2017. Our equity in earnings of equity investees contributed by this joint venture was $60.3 million and $27.8 million for the years ended December 31, 2016 and 2017, respectively.

Hutchison Baiyunshan's revenue increased slightly by 1.5% from $224.1 million for the year ended December 31, 2016 to $227.4 million for the year ended December 31, 2017, which was primarily due to increased sales of certain of its drug products.

Cost of sales increased by 0.9% from $134.8 million for the year ended December 31, 2016 to $136.0 million for the year ended December 31, 2017, primarily due to increased sales. The increase in cost of sales was smaller than the increase in revenues due to a change in product mix resulting in a higher proportion of sales of higher margin products.

Selling expenses during these periods decreased by 3.4% from $46.9 million for the year ended December 31, 2016 to $45.3 million for the year ended December 31, 2017 due to less sales and marketing activities.

Administrative expenses increased by 13.0% from $21.7 million for the year ended December 31, 2016 to $24.5 million for the year ended December 31, 2017 due to an increase in general overhead costs incurred.

Taxation charge remained relatively stable at $3.6 million for the years ended December 31, 2016 and 2017 due to relatively stable profit before taxation across these periods.

As a result of the foregoing, profit attributable to equity holders of Hutchison Baiyunshan increased by 2.0% from $20.4 million for the year ended December 31, 2016 to $20.8 million for the year ended December 31, 2017. Our equity in earnings of equity investees contributed by this joint venture was $10.2 million and $10.4 million for the years ended December 31, 2016 and 2017, respectively.

Nutrition Science Partners had losses of $8.5 million and $9.2 million for the years ended December 31, 2016 and 2017, respectively. Nutrition Science Partners had no revenue during these periods. The increase in net loss across these periods was primarily attributable to higher expenditures on personnel costs related to the development of drug candidates from Nutrition Science Partners' botanical library. Our equity in earnings of equity investees contributed by this joint venture was losses of $4.2 million and $4.6 million for the years ended December 31, 2016 and 2017, respectively.

For more information on the financial results of our non-consolidated joint ventures, see "—Key Components of Results of Operations—Equity in Earnings of Equity Investees."

As a result of the foregoing, our net income decreased from a net income of $14.6 million for the year ended December 31, 2016 to a net loss of $23.0 million for the year ended December 31, 2017. Net income attributable to our company decreased from a net income of $11.7 million for the year ended December 31, 2016 to a net loss of $26.7 million for the year ended December 31, 2017.

Our operating profit decreased from an operating profit of $20.5 million for the year ended December 31, 2016 to an operating loss of $18.4 million for the year ended December 31, 2017 as a result of a significant decrease in operating profit of our Commercial Platform from $74.3 million for the year ended December 31, 2016 to $45.1 million for the year ended December 31, 2017 as well as an increase in operating loss of our Innovative Platform from $40.8 million for the year ended December 31, 2016 to $52.0 million for the year ended December 31, 2017. The decrease in operating profit of our Commercial

Platform across these periods was primarily due to equity in earnings of Shanghai Hutchison Pharmaceuticals including a one-time gain of $40.4 million relating to land compensation and other government subsidies in 2016 which did not occur in 2017. The increase in operating loss of our Innovation Platform was due to a significant expansion of clinical activities, rapid organization growth to support these clinical activities and investment in the expansion of small molecule manufacturing operations.

To date, we have taken a multi-source approach to fund our operations, including through cash flows generated and dividend payments from our Commercial Platform, service and milestone and upfront payments from our Innovation Platform's collaboration partners, and bank borrowings. Since our founding, we have received various financial support from CK Hutchison in the form of undertakings for bank borrowings, as well as investments from other third parties, proceeds from our listings on the AIM market of the London Stock Exchange in 2006 and the Nasdaq Global Select Market in 2016 and our follow-on offering in 2017.

Our Innovation Platform has historically not generated significant profits or has operated at a net loss, as creating potential global first-in-class or best-in-class drug candidates requires a significant investment of resources over a prolonged period of time. As a result, we anticipate that we may need additional financing for our Innovation Platform in future periods. See Item 3.D. "Risk Factors—Risks Related to Our Innovation Platform—Historically, our Innovation Platform has not generated significant profits or has operated at a net loss, and our future profitability is dependent on the successful commercialization of our drug candidates, including fruquintinib which received approval from the National Medical Products Administration of China, or NMPA (formerly known as the China Food and Drug Administration), in September 2018."

As of December 31, 2018, we had cash and cash equivalents and short-term investments of $301.0 million and unutilized bank facilities of $119.3 million. Substantially all of our bank deposits are at major financial institutions, which we believe are of high credit quality. As of December 31, 2018, we had $26.7 million in bank loans, all of which was related to a term loan from Scotiabank. The total weighted average cost of bank borrowings for the year ended December 31, 2018 was 2.8% per annum. We incurred no guarantee fees for the year ended December 31, 2018. For additional information, see "—Loan Facilities."

Certain of our subsidiaries and non-consolidated joint ventures, including those registered as wholly foreign-owned enterprises in China, are required to set aside at least 10.0% of their after-tax profits to their general reserves until such reserves reach 50.0% of their registered capital. There is no fixed percentage of after-tax profit required to be set aside for the general reserves for our PRC joint ventures. Profit appropriated to the reserve funds for our subsidiaries and non-consolidated joint ventures incorporated in the PRC was approximately $15,000, $10,000 and $15,000 for the years ended December 31, 2016, 2017 and 2018, respectively. In addition, as a result of PRC regulations restricting dividend distributions from such reserve funds and from a company's registered capital, our PRC subsidiaries are restricted in their ability to transfer a certain amount of their net assets to us as cash dividends, loans or advances. This restricted portion amounted to $7.4 million as of December 31, 2018. Although we do not currently require any such dividends, loans or advances from our PRC subsidiaries to fund our operations, should we require additional sources of liquidity in the future, such restrictions may have a material adverse effect on our liquidity and capital resources. For more information, see Item 4.B. "Business Overview—Regulation—PRC Regulation of Foreign Currency Exchange, Offshore Investment and State-Owned Assets—Regulation on Dividend Distribution."

In addition, our non-consolidated joint ventures held an aggregate of $59.2 million in cash and cash equivalents and no bank borrowings as of December 31, 2018. These cash and cash equivalents are only accessible by us through dividend payments from these joint ventures. The level of dividends declared by these joint ventures is subject to agreement each year between us and our joint venture partners based on the profitability and working capital needs of the joint ventures. As a result, we cannot guarantee that these joint ventures will continue to pay dividends to us in the future at the same rate we have enjoyed in the past, or at all, which may have a material adverse effect on our liquidity and capital resources. As of December 31, 2018, our Innovation Platform joint venture, Nutrition Science Partners, has not paid any dividends. For more information, see Item 3.D. "Risk Factors—Risks Related to Our Commercial Platform—As a significant portion of our Commercial Platform business is conducted through joint ventures, we are largely dependent on the success of our joint ventures and our receipt of dividends or other payments from our joint ventures for cash to fund our operations."

We believe that our current levels of cash and cash equivalents, short-term investments, along with cash flows from operations, dividend payments and bank borrowings, will be sufficient to meet our anticipated cash needs for at least the next 12 months. However, we may require additional financing in order to fund all of the clinical development efforts at our Innovation Platform that we plan to undertake to accelerate the development of our clinical-stage drug candidates. For more information, see Item 3.D. "Risk Factors—Risks Related to Our Financial Position and Need for Capital."

Net cash used in operating activities was $8.9 million for the year ended December 31, 2017 compared to net cash used in operating activities of $32.8 million for the year ended December 31, 2018. The net change of $23.9 million was primarily attributable to the increase in net loss of $48.3 million from $23.0 million for the year ended December 31, 2017 to $71.3 million for the year ended December 31, 2018 which included our company's $15.0 million share of Nutrition Science Partner's non-cash impairment provision. See Item 4.B. "Business Overview—Overview of Our Collaborations—Nestlé Health Science" for more details relating to this impairment provision. Additionally, the net change was also a result of a decrease in dividends received from equity investees of $20.4 million from $55.6 million for the year ended December 31, 2017 to $35.2 million for the year ended December 31, 2018, which resulted from the relatively high level of dividends received from our non-consolidated joint venture Shanghai Hutchison Pharmaceuticals in the year ended December 31, 2017 following the one-time land compensation that it received from the Shanghai government. The net change was partially offset by the effects of changes in working capital. In particular, there was a $16.3 million increase in other payables, accruals and advance receipts for the year ended December 31, 2018, as compared to $5.2 million increase for the year ended December 31, 2017, and a $1.3 million increase in accounts payable for the year ended December 31, 2018, as compared to a $11.2 million decrease for the year ended December 31, 2017.

Net cash used in operating activities was $9.6 million for the year ended December 31, 2016 compared to net cash used in operating activities of $8.9 million for the year ended December 31, 2017. The net change was primarily attributable to a $25.1 million increase in dividends received from our equity investees from $30.5 million for the year ended December 31, 2016 to $55.6 million for the year ended December 31, 2017 which was the result of increased revenue and funds available from land compensation paid to our equity investees in 2016. This increase was partially offset by an increase in research and development spending in our Innovation Platform as well as the effects of changes in working capital, namely an aggregate decrease of $14.5 million in the year ended December 31, 2017 primarily due to delayed payments from 2016 which were settled in 2017, as compared to an aggregate increase of $3.4 million in the year ended December 31, 2016.

Net cash used in investing activities was $260.8 million for the year ended December 31, 2017, compared to net cash generated from investing activities of $43.8 million for the year ended December 31, 2018. The net change of $304.6 million was primarily attributable to the net deposits into short-term investments of $248.8 million for the year ended December 31, 2017 compared to net withdrawal of deposits in short-term investments of $58.1 million for the year ended December 31, 2018.

Net cash used in investing activities was $33.6 million for the year ended December 31, 2016, compared to net cash used in investing activities of $260.8 million for the year ended December 31, 2017. This change was primarily attributable to net deposits in short-term investments of $248.8 million for the year ended December 31, 2017 compared to $24.3 million for the year ended December 31, 2016. This change was also attributable to an additional $7.0 million share capital contribution to Nutrition Science Partners in 2017 compared to $5.0 million in 2016.

Net cash generated from financing activities was $273.2 million for the year ended December 31, 2017, compared to net cash used in financing activities of $8.2 million for the year ended December 31, 2018. The net change of $281.4 million was primarily attributable to net proceeds of $292.7 million from the issuance of ordinary shares in the form of ADSs upon our follow-on offering in the Unites States in October 2017 as well as a net repayment of bank borrowings of $16.9 million in the year ended December 31, 2017 as compared to a net repayment of bank borrowings of $3.1 million in the year ended December 31, 2018.

Net cash generated from financing activities was $92.4 million for the year ended December 31, 2016, compared to net cash generated from financing activities of $273.2 million for the year ended December 31, 2017. This change was primarily attributable to net proceeds of $292.7 million from the issuance of ordinary shares in the form of ADS upon our follow-on offering in the United States in October 2017 as compared to net proceeds of $97.3 million from the issuance of ordinary shares in the form of ADS upon our initial public offering in the United States in 2016. The change was also attributable to a net decrease in bank borrowings of $16.9 million for the year ended December 31, 2017 as compared to a net decrease of $3.1 million for the year ended December 31, 2016.

In November 2015, we renewed a three-year revolving loan facility with HSBC with an annual interest rate of 1.25% over the Hong Kong Inter-bank Offered Rate, or HIBOR. In February 2017, $2.6 million was drawn from this facility, and the amount was fully repaid in March 2017. Upon maturity in November 2018, we further renewed this revolving loan facility for an additional three years to November 2021. The facility amount of this loan is HK$234.0 million ($30.0 million) with an annual interest rate of 0.85% over HIBOR. No amount was drawn from this loan facility as December 31, 2018.

In February 2017, our subsidiary Hutchison China MediTech (HK) Limited entered into two credit facility agreements with each of Bank of America N.A. and Deutsche Bank AG for the provision of unsecured credit facilities in the aggregate amount of HK$546.0 million ($70.0 million). The credit facility with Bank of America N.A. included (i) a HK$156.0 million ($20.0 million) term loan facility and (ii) a HK$195.0 million ($25.0 million) revolving loan facility, both with a term of 18 months and an annual interest rate of 1.25% over HIBOR. The term loan was drawn from this credit facility in March 2017 and repaid and terminated in May 2018. The credit facility with Deutsche Bank AG included (i) a HK$78.0 million ($10.0 million) term loan facility and (ii) a HK$117.0 million ($15.0 million) revolving loan facility, both with a term of 18 months and an annual interest rate of 1.25% over HIBOR. The term loan was drawn from this credit facility in August 2017 and repaid and terminated in May 2018. Both revolving loan facilities were terminated in August 2018.

In August 2018, our subsidiary Hutchison China MediTech (HK) Limited entered into new credit facility agreements with each of Bank of America N.A. and Deutsche Bank AG for the provision of unsecured credit facilities in the aggregate amount of HK$507.0 million ($65.0 million). The credit facility with Bank of America N.A. is a HK$351.0 million ($45.0 million) revolving loan facility, with a term of 24 months and an annual interest rate of 1.35% over HIBOR. The credit facility with Deutsche Bank AG is a HK$156.0 million ($20.0 million) revolving loan facility with a term of 24 months and an annual interest rate of 1.35% over HIBOR. These credit facilities are guaranteed by us and include certain financial covenant requirements. As of December 31, 2018, no amount was drawn from either of these two revolving loan facilities.

In November 2017, our subsidiary Hutchison China MediTech Finance Holdings Limited entered into a HK$210.0 million ($26.9 million) three-year term loan and HK$190.0 million ($24.4 million) 18-month revolving loan facility with Scotiabank. The term loan facility bears an annual interest rate of 1.50% over HIBOR and the revolving loan facility bears an annual interest rate of 1.25% over HIBOR. The term loan and revolving loan facility will expire in November 2020 and May 2019, respectively. As of December 31, 2018, $26.9 million was drawn from the term loan. Our previous four-year term loan with Scotiabank entered in June 2014 was fully repaid in November 2017. The previous term loan was guaranteed by Hutchison Whampoa Limited, a wholly owned subsidiary of CK Hutchison, for an annual guarantee fee of 1.75%. The new term loan with Scotiabank entered into in November 2017 is not guaranteed by Hutchison Whampoa Limited.

Our non-consolidated joint ventures Shanghai Hutchison Pharmaceuticals, Hutchison Baiyunshan and Nutrition Science Partners had no bank borrowings outstanding as of December 31, 2018.

We had capital expenditures of $4.3 million, $5.0 million and $6.4 million for the years ended December 31, 2016, 2017 and 2018, respectively. Our capital expenditures during these periods were primarily used for the purchases of property, plant and equipment to expand the Hutchison MediPharma research facilities and the new manufacturing facility in Suzhou, China, which produces Elunate and other clinical supplies. Our capital expenditures have been primarily funded by cash flows from operations and proceeds from our initial public and follow-on offering in the United States.

As of December 31, 2018, we had commitments for capital expenditures of approximately $1.5 million, primarily for purchases of property, plant and equipment to expand the Hutchison MediPharma research facilities and the new Suzhou manufacturing facility. We expect to fund these capital expenditures through cash flows from operations and existing cash resources.

Our non-consolidated joint venture Shanghai Hutchison Pharmaceuticals had capital expenditures (net of government subsidies) of $11.0 million, $6.2 million and $5.2 million for the years ended December 31, 2016, 2017 and 2018, respectively. These capital expenditures were primarily related to the construction and improvements of the production facilities in Feng Pu district in Shanghai. These capital

expenditures were primarily funded through cash flows from operations of Shanghai Hutchison Pharmaceuticals and bank borrowings.

Our non-consolidated joint venture Hutchison Baiyunshan had capital expenditures of $13.2 million, $7.2 million and $5.4 million for the years ended December 31, 2016, 2017 and 2018, respectively. These capital expenditures were primarily related to the construction and improvements of the production facilities in Bozhou and an office building in Guangzhou. These capital expenditures were primarily funded through cash flows from operations of Hutchison Baiyunshan.

Full details of our research and development activities and expenditures are given in the "Business" and "Operating and Financial Review and Prospects" sections of this annual report above.

Other than as described elsewhere in this annual report, we are not aware of any trends, uncertainties, demands, commitments or events that are reasonably likely to have a material adverse effect on our revenue, income, profitability, liquidity or capital resources, or that would cause our reported financial information not necessarily to be indicative of future operation results or financial condition.

Other than some of the operating lease obligations set forth in the table below, we did not have during the periods presented, and we do not currently have, any off-balance sheet arrangements as defined under the rules of the SEC.

The following table sets forth our contractual obligations as of December 31, 2018. Our purchase obligations relate to property, plant and equipment that are contracted for but not yet paid. Our operating lease obligations primarily comprise future aggregate minimum lease payments in respect of various factories and offices under non-cancellable operating lease agreements.

The following table sets forth the contractual obligations of our non-consolidated joint venture Shanghai Hutchison Pharmaceuticals as of December 31, 2018. Shanghai Hutchison Pharmaceuticals' purchase obligations comprise capital commitments for property, plant and equipment contracted for but not yet paid. Shanghai Hutchison Pharmaceuticals' operating lease obligations primarily comprise future

aggregate minimum lease payments in respect of various offices under non-cancellable operating lease agreements.

The following table sets forth the contractual obligations of our non-consolidated joint venture Hutchison Baiyunshan as of December 31, 2018. Hutchison Baiyunshan's purchase obligations comprise capital commitments for property, plant and equipment contracted for but not yet paid. Hutchison Baiyunshan's finance and operating lease obligations primarily comprise future aggregate minimum lease payments in respect of various warehouses under non-cancellable lease agreements.

Substantially all of our revenue and expenses are denominated in renminbi, and our financial statements are presented in U.S. dollars. We do not believe that we currently have any significant direct foreign exchange risk and have not used any derivative financial instruments to hedge our exposure to such risk. Although, in general, our exposure to foreign exchange risks should be limited, the value of your investment in our ADSs will be affected by the exchange rate between the U.S. dollar and the renminbi because the value of our business is effectively denominated in renminbi, while the ADSs will be traded in U.S. dollars.

The value of the renminbi against the U.S. dollar and other currencies may fluctuate and is affected by, among other things, changes in China's political and economic conditions. The conversion of renminbi into foreign currencies, including U.S. dollars, has been based on rates set by the PBOC. On July 21, 2005, the PRC government changed its decade-old policy of pegging the value of the renminbi to the U.S. dollar. Under the revised policy, the renminbi is permitted to fluctuate within a narrow and managed band against a basket of certain foreign currencies. This change in policy resulted in a more than 20% appreciation of the renminbi against the U.S. dollar in the following three years. Between July 2008 and June 2010, this appreciation halted, and the exchange rate between the renminbi and U.S. dollar remained within a narrow band. In June 2010, the PBOC announced that the PRC government would increase the flexibility of the exchange rate, and thereafter allowed the renminbi to appreciate slowly against the U.S. dollar within the narrow band fixed by the PBOC. However, more recently, the PBOC has significantly devalued the renminbi against the U.S. dollar. If we decide to convert renminbi into U.S. dollars for the purpose of

making payments for dividends on our ordinary shares or ADSs or for other business purposes, appreciation of the U.S. dollar against the renminbi would have a negative effect on the U.S. dollar amounts available to us.

Substantially all of our bank deposits are in major financial institutions, which we believe are of high credit quality. We limit the amount of credit exposure to any single financial institution. We make periodic assessments of the recoverability of trade and other receivables and amounts due from related parties. Our historical experience in collection of receivables falls within the recorded allowances, and we believe that we have made adequate provision for uncollectible receivables.

We have no significant interest-bearing assets except for bank deposits. Our exposure to changes in interest rates is mainly attributable to our bank borrowings, which bear interest at floating interest rates and expose us to cash flow interest rate risk. We have not used any interest rate swaps to hedge our exposure to interest rate risk. We have performed sensitivity analysis for the effects on our results for the year from changes in interest rates on floating rate borrowings. The sensitivity to interest rates used is based on the market forecasts available at the end of the reporting period and under the economic environments in which we operate, with other variables held constant. According to the analysis, the impact on our net loss of a 1.0% interest rate shift would be a maximum increase/decrease of $0.3 million for the year ended December 31, 2018.

In recent years, China has not experienced significant inflation, and thus inflation has not had a material impact on our results of operations. According to the National Bureau of Statistics of China, the Consumer Price Index in China increased by 2.0%, 1.8% and 1.9% in 2016, 2017 and 2018, respectively. Although we have not been materially affected by inflation in the past, we can provide no assurance that we will not be affected in the future by higher rates of inflation in China.

In May 2014, the Financial Accounting Standards Board, or FASB, issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), or ASU 2014-09, to clarify the principles of recognizing revenue and create common revenue recognition guidance for U.S. GAAP and International Financial Reporting Standards. An entity has the option to apply the provisions of ASU 2014-09 either retrospectively to each prior reporting period presented or retrospectively with the cumulative effect of initially applying this standard recognized at the date of initial application. ASU 2014-09 is effective for fiscal years and interim periods within those years beginning after December 15, 2017, and early adoption is permitted but not earlier than the original effective date of December 15, 2016. The new standard supersedes U.S. GAAP guidance on revenue recognition and requires the use of more estimates, judgments and additional disclosures.

We adopted the new standard using the modified retrospective method on January 1, 2018 and have assessed the impact on revenue from customers. Our revenue from contracts with customers comprises of research and development projects in our Innovation Platform and sales of goods and services in our Commercial Platform operating segments. The changes from applying the new guidance primarily impacted the Innovation Platform.

Innovation Platform—We have reviewed our research and development contracts and identified two contracts related to our license and collaboration arrangements that will be impacted by the application of ASU 2014-09. The license and collaboration arrangements contain multiple performance obligations:

(1) the license to the drug compound; and (2) the research and development services for each specified treatment indication. The transaction price includes fixed and variable consideration in the form of upfront payment, research and development costs reimbursements, contingent milestone payments and sales-based royalties. The allocation of the transaction price to each performance obligation is based on the relative standalone selling price of each performance obligation. We have determined that control of the license to the drug compound was transferred as of the inception date of the collaboration agreements and consequently, amounts allocated to this performance obligation are recognized at a point in time. Conversely, control of the research and development services for each specified indication is transferred over time and amounts allocated to these performance obligations are recognized over time using cost inputs as a measure of progress. In addition, royalty revenues will be recognized as future sales occur as they meet the requirements for the sales-usage based royalty exception. We recorded a US$1.1 million deferral of revenue as a cumulative adjustment to opening accumulated loss upon adoption.

Commercial Platform—For sales of goods and services, we have applied a portfolio approach to aggregate contracts into portfolios whose performance obligations do not differ materially from each other. In our assessment of each portfolio, we have assessed the contracts under the new five-step model and do not expect a significant impact to the timing or amount of revenue recognition under the new guidance. Control of the goods passes to the customer when the goods are delivered, which matches the timing of revenue recognition under the our existing accounting policy.

We have applied updates to the new guidance in our assessment including ASU 2016-08, Principal versus Agent Considerations, ASU 2016-10, Identifying Performance Obligations and Licensing.

In February 2016, the Financial Accounting Standards Board, or FASB, issued ASU 2016-02, Leases (Topic 842), or ASU 2016-02. The core principle of ASU 2016-02 is that a lessee should recognize the assets and liabilities that arise from leases. A lessee should recognize on the balance sheet a liability to make lease payments (the lease liability) and a right of use asset representing its right to use the underlying asset for the lease term. We elected the short-term lease exception to not recognize right-of-use assets and lease liabilities for leases with a term of 12 months or less and will recognize lease expense for such leases generally on a straight line basis over the lease term. ASU 2016-02 is effective for fiscal years and interim periods within those years beginning after December 15, 2018. We adopted the new standard using the optional transition method (from ASU 2018-11, Leases Targeted Improvements) on January 1, 2019. A gross up to the consolidated balance sheet was recognized on the date of adoption of US$5.7 million and US$6.4 million in right-of-use assets and lease liabilities respectively, primarily related to our various factories and offices under non-cancellable lease agreements that were accounted as operating leases under ASC 840, Leases (Topic 840) as at December 31, 2018. Additionally, we do not expect a significant impact to the consolidated statements of operations after the adoption of ASC 842 as the pattern of expense recognition should not change materially for such operating leases.

Other amendments that have been issued by the FASB or other standards setting bodies that do not require adoption until a future date are not expected to have a material impact on our consolidated financial statements upon adoption.

Below is a list of the names and ages of our directors and officers as of March 1, 2019, and a brief account of the business experience of each of them. The business address for our directors and officers is c/o Hutchison China MediTech Limited, Level 18, The Metropolis Tower, 10 Metropolis Drive, Hunghom, Kowloon, Hong Kong.

Name		Position

Simon To	67	Executive Director and Chairman
Christian Hogg	53	Executive Director and Chief Executive Officer
Johnny Cheng	52	Executive Director and Chief Financial Officer
Weiguo Su, Ph.D.	61	Executive Director and Chief Scientific Officer
Dan Eldar, Ph.D.	65	Non-executive Director
Edith Shih	67	Non-executive Director and Company Secretary
Paul Carter	58	Senior Independent Non-executive Director
Karen Ferrante, M.D.	61	Independent Non-executive Director
Graeme Jack	68	Independent Non-executive Director
Tony Mok, M.D.	58	Independent Non-executive Director
May Wang, Ph.D.	55	Senior Vice President, Business Development & Strategic Alliances
Zhenping Wu, Ph.D.	59	Senior Vice President, Pharmaceutical Sciences
Mark Lee	41	Senior Vice President, Corporate Finance & Development

Simon To has been a director since 2000 and an executive director and chairman since 2006. He is also a member of our remuneration committee and technical committee. He is managing director of Hutchison Whampoa (China) Limited and has been with Hutchison Whampoa (China) Limited for over 38 years, building its business from a small trading company to a multi-billion dollar investment group. He has negotiated major transactions with multinationals such as Procter & Gamble, or P&G, Lockheed, Pirelli, Beiersdorf, United Airlines, and British Airways. He is currently a director of Gama Aviation Plc and formerly served as independent non-executive director on the boards of China Southern Airlines Company Limited and Air China Limited. Mr. To's career in China spans more than 43 years. He is the original founder of the China healthcare business of Hutchison Whampoa Limited (currently a subsidiary of CK Hutchison) and has been instrumental in its acquisitions made to date. He received a Bachelor's Degree in Mechanical Engineering from Imperial College, London and an MBA from Stanford University's Graduate School of Business.

Christian Hogg has been an executive director and chief executive officer since 2006. He is also a member of our technical committee. He joined the business in 2000, as its first employee, and has since led all aspects of the creation, implementation and management of our strategy, business and listings. This includes the establishment of our Innovation Platform, Hutchison MediPharma, which now comprises eight drug candidates that are being investigated in clinical studies around the world and a team of about 400 people based in Shanghai. Furthermore, Mr. Hogg oversaw the acquisition and operational integration of assets that led to the formation of our Commercial Platform, which manufactures, markets and distributes prescription drugs and consumer health products, covering an extensive network of hospitals across China. Prior to joining us, Mr. Hogg spent ten years with P&G, starting in the United States in Finance and then Brand Management in the Laundry and Cleaning Products Division. Mr. Hogg then moved to China to manage P&G's detergent business, followed by a move to Brussels to run P&G's global bleach business. Mr. Hogg received a Bachelor's degree in Civil Engineering from the University of Edinburgh and an MBA from the University of Tennessee.

Johnny Cheng has been an executive director since 2011 and chief financial officer since 2008. Prior to joining our company, Mr. Cheng was vice president, finance of Bristol-Myers Squibb in China and was a director of Sino-American Shanghai Squibb Pharmaceuticals Ltd. and Bristol-Myers Squibb (China) Investment Co., Ltd. in Shanghai between late 2006 and 2008. Mr. Cheng started his career as an auditor with Price Waterhouse (currently PricewaterhouseCoopers) in Australia and then KPMG in Beijing before spending eight years with Nestlé in China where he was in charge of a number of finance and control functions in various operations. Mr. Cheng received a Bachelor of Economics, Accounting Major from the University of Adelaide and is a member of the Institute of Chartered Accountants in Australia.

Weiguo Su has been an executive director since 2017 and has been our chief scientific officer since 2012. He is also a member of our technical committee. Dr. Su has headed all drug discovery and research since he joined our company, including master-minding our scientific strategy, being a key leader of the Innovation Platform, and responsible for the discovery of each and every small molecule drug candidate in our pipeline. Prior to joining our company in 2005, Dr. Su spent 15 years with Pfizer's U.S. research and development organization where he became a director in their medicinal chemistry department. In March 2017, Dr. Su was granted the prestigious award by the China Pharmaceutical Innovation and Research Development Association (PhIRDA) as one of the Most Influential Drug R&D Leaders in China. Dr. Su received a Bachelor of Science degree in Chemistry from Fudan University in Shanghai and completed a Ph.D. and post-doctoral fellowship in chemistry at Harvard University under the guidance of Nobel Laureate Professor E. J. Corey.

Dan Eldar has been a non-executive director since 2016. He has more than 30 years of experience as a senior executive, leading global operations in telecommunications, water, biotech and healthcare. He is an executive director of Hutchison Water Israel Ltd which focuses on large scale projects including desalination, wastewater treatment and water reuse. He was formerly an independent non-executive director of Leumi Card, a subsidiary of Bank Leumi Le-Israel B.M., one of Israel's leading credit card companies. Dr. Eldar holds a Doctor of Philosophy degree in Government from Harvard University, Master of Arts degree in Government from Harvard University, Master of Arts degree in Political Science and Public Administration from the Hebrew University of Jerusalem and a Bachelor of Arts degree in Political Science from the Hebrew University of Jerusalem.

Edith Shih has been a non-executive director and company secretary since 2006 and company secretary of our subsidiaries since 2000. She is an executive director and company secretary of CK Hutchison. She has been with the Cheung Kong (Holdings) Limited group since 1989 and from 1991 to 2015 with Hutchison Whampoa Limited, or HWL, both of which have become wholly-owned subsidiaries of CK Hutchison in 2015. She has acted in various capacities within the HWL group including director, head group general counsel and company secretary of HWL and its subsidiaries and associated companies. Ms. Shih is a non executive director of Hutchison Telecommunications Hong Kong Holdings Limited and Hutchison Port Holdings Management Pte. Limited, the trustee manager of Hutchison Port Holdings Trust. She is also a member of the board of commissioners of PT Duta Intidaya Tbk. She has over 35 years of experience in legal, regulatory, corporate finance, compliance and corporate governance fields. She is at present the international president and executive committee chairman of the Institute of Chartered Secretaries and Administrators and a past president and current chairperson of certain committees and panels of The Hong Kong Institute of Chartered Secretaries. Ms. Shih received a Bachelor of Science degree in Education and a Master of Arts degree from the University of the Philippines and a Master of Arts degree and a Master of Education degree from Columbia University, New York. Ms. Shih is a solicitor qualified in England and Wales, Hong Kong and Victoria, Australia and a Fellow of both the Institute of Chartered Secretaries and Administrators and The Hong Kong Institute of Chartered Secretaries, holding Chartered Secretary and Chartered Governance Professional dual designations.

Paul Carter has been a senior independent non-executive director since 2017. He is also chairman of our remuneration committee and a member of our audit committee and technical committee. He has more than 25 years of experience in the pharmaceutical industry. From 2006 to 2016, Mr. Carter served in

various senior executive roles at Gilead Sciences, Inc., or Gilead, a research-based biopharmaceutical company, with the last position as executive vice president, commercial operations. In this role, Mr. Carter headed the worldwide commercial organization responsible for the launch and commercialization of all of Gilead's products. Prior to joining Gilead, he spent 14 years with GlaxoSmithKline PLC and its group companies, with the last position as a regional head of the international business in Asia. He is currently a director of Alder Biopharmaceuticals, Inc. and Mallinckrodt plc. Mr. Carter holds a degree in Business Studies from the Ealing School of Business and Management (now merged into University of West London) and is a Fellow of the Chartered Institute of Management Accountants in the United Kingdom.

Karen Ferrante has been an independent non-executive director since 2017. She is also the chairman of our technical committee and a member of our audit committee. She has more than 20 years of experience in the pharmaceutical industry. She was the former chief medical officer and head of research and development of Tokai Pharmaceuticals, Inc., a biopharmaceutical company focused on developing and commercializing innovative therapies for prostate cancer and other hormonally driven diseases. From September 2007 to July 2013, Dr. Ferrante held senior positions at Millennium Pharmaceuticals, Inc. and its parent company, Takeda Pharmaceutical Company Limited, including chief medical officer and most recently as oncology therapeutic area and Cambridge USA site head. From 1999 to 2007, she held positions of increasing responsibility at Pfizer Inc., with the last position as vice president, oncology development. Dr. Ferrante is currently a member of the board of directors of Progenics Pharmaceuticals, Inc., MacroGenics, Inc. and Unum Therapeutics Inc. She was previously a director of Baxalta Incorporated until it was acquired by Shire plc in 2016. Dr. Ferrante has been an author of a number of papers in the field of oncology, an active participant in academic and professional associations and symposia and holder of several patents. Dr. Ferrante holds a Bachelor of Science Degree in Chemistry and Biology from Providence College and a Doctor of Medicine from Georgetown University.

Graeme Jack has been an independent non-executive director since 2017. He is also chairman of our audit committee and member of our remuneration committee. He has more than 40 years of experience in finance and audit. He retired as partner of PricewaterhouseCoopers in 2006 after a distinguished career with the firm for over 33 years. He is currently an independent non-executive director of The Greenbrier Companies, Inc. (an international supplier of equipment and services to the freight rail transportation markets), Hutchison Port Holdings Management Pte. Limited as the trustee-manager of Hutchison Port Holdings Trust (a developer and operator of deep water container terminals) and of COSCO SHIPPING Development Co., Ltd., formerly known as "China Shipping Container Lines Company Limited" (an integrated financial services platform principally engaged in vessel and container leasing). He holds a Bachelor of Commerce degree and is a Fellow of the Hong Kong Institute of Certified Public Accountants and an Associate of Chartered Accountants Australia and New Zealand.

Tony Mok has been an independent non executive director since 2017. He is also a member of our technical committee. Professor Mok has more than 30 years of experience in clinical oncology with his main research interest focusing on biomarker and molecular targeted therapy in lung cancer. He is currently Li Shu Fan Medical Foundation named professor and chairman of department of clinical oncology at The Chinese University of Hong Kong. Professor Mok has contributed to over 200 articles in international peer-reviewed journals, as well as multiple editorials and textbooks. In October 2018, Professor Mok was the first Chinese to be bestowed with the European Society of Clinical Oncology (ESMO) Lifetime Achievement Award, one of the most prestigious international honors and recognitions given to cancer researchers, for his contribution to and leadership in lung cancer research worldwide. He is a non-executive director of AstraZeneca Plc, a director of the American Society of Clinical Oncology (ASCO), a member of the ASCO Publications Committee and vice secretary of the Chinese Society of Clinical Oncology (CSCO). He also formerly chaired the ASCO International Affairs Committee. Professor Mok is also closely affiliated with the oncology community in China and has been awarded an Honorary Professorship at Guangdong Province People's Hospital, Guest Professorship at Peking University School of Oncology and Visiting Professorship at Shanghai Jiao Tong University and West

China School of Medicine/West China Hospital, Sichuan University. He received his bachelor of medical science degree and a Doctor of Medicine from University of Alberta, Canada. He is also a fellow of the Royal College of Physicians and Surgeons of Canada, Hong Kong College of Physicians, Hong Kong Academy of Medicine, Royal College of Physicians of Edinburgh and ASCO.

May Wang is our senior vice president of business development & strategic alliances. Prior to joining our company in 2010, Dr. Wang spent 16 years with Eli Lilly where she was the head of Eli Lilly's Asian biology research and responsible for establishing and managing research collaborations in China and across Asia. Dr. Wang holds numerous patents, has published more than 50 peer-reviewed articles and has given dozens of seminars and plenary lectures. Dr. Wang received a Ph.D. in biochemistry from Purdue University.

Zhenping Wu joined our company in 2008 and has been our senior vice president of pharmaceutical sciences since 2012. Dr. Wu has over 25 years of experience in drug discovery and development. His past positions include senior director of pharmaceutical sciences at Phenomix Corporation, a U.S.-based biotechnology company, director of pharmaceutical development at Pfizer Global Research & Development in California (formerly Agouron Pharmaceuticals) and a group leader at Roche at its Palo Alto site. He is a past chairman and president of the board of the Sino-American Biotechnology and Pharmaceutical Association. Dr. Wu received a Ph.D. from the University of Hong Kong and a master in business administration from the University of California at Irvine.

Mark Lee is our senior vice president of corporate finance and development. Prior to joining our company in 2009, he worked in healthcare investment banking in the United States and Europe since 1998. Based in the New York and London offices of Credit Suisse, Mr. Lee was involved in the execution and origination of mergers, acquisitions, public and private financings and corporate strategy for life science companies such as AstraZeneca, Bristol-Myers Squibb and Genzyme, as well as other medical product and service companies. Mr. Lee received his bachelor's degree in biochemical engineering with first class honors from University College London, where he was awarded a Dean's Commendation. He also received a master of business administration from the Massachusetts Institute of Technology's Sloan School of Management.

Dr. Ye Hua resigned as our Senior Vice President, Head of Clinical Development & Regulatory Affairs, effective as of September 2018.

The following table sets forth the compensation paid or accrued during the fiscal year ended December 31, 2018 to our chief executive officer, chief financial officer, chief scientific officer and other executive officers on an aggregate basis.

During the fiscal year ended December 31, 2018, we also granted share option awards representing 100,000 ordinary shares to Weiguo Su. The options have an exercise price of £49.74 ($63.17) per share and expire on March 18, 2028.

We have entered into employment offer letters with each of our executive officers who is employed by our Hong Kong subsidiaries, Hutchison China MediTech (HK) Limited and Hutchison MediPharma (Hong Kong) Limited, namely Mr. Christian Hogg, Mr. Johnny Cheng and Mr. Mark Lee. Under these our executives receive compensation in the form of salaries, discretionary bonuses, participation in the Hutchison Provident Fund retirement scheme, medical coverage under the Hutchison Group Medical Scheme, personal accident insurance and annual leave. None of the employment arrangements provide benefits to our executive officers upon termination. We may terminate employment by giving the executive three months' prior written notice. The executive officer may also voluntarily terminate his employment with us upon not less than three months' prior written notice to us.

Each executive officer has agreed, for the term of employment with us and thereafter, not to disclose or use for his own purposes any of our and our associated companies' confidential information that the executive officer may develop or learn in the course of employment with us. Moreover, each of our executive officers has agreed, for the term of employment with us and for a period of twelve months

thereafter, (i) not to undertake or be employed or interested directly or indirectly anywhere in Hong Kong in any activity which is similar to and competitive with our company or associated companies in which the executive officer had been involved in the period of 12 months prior to such termination and (ii) not to solicit for any employees of our company or our joint ventures or orders from any person, firm or company which was at any time during the 12 months prior to termination of such employment a customer or supplier of our company or associated companies.

We have also entered into employment agreements with each of our executive officers who are employed directly by Hutchison MediPharma, namely Dr. Weiguo Su, Dr. May Wang and Dr. Zhenping Wu. Under these employment agreements, we engage the executive officer on either an open-ended or a fixed term. Our executive officers receive compensation in the form of salaries, discretionary bonuses, annual leave, statutory maternity leave and nursing leave.

Under the terms of these agreements, we provide labor protection and work conditions that comply with the safety and sanitation requirements stipulated by the relevant PRC laws. The employment agreements prohibit the executive officers from engaging in any conduct and business activities which may compete with the business or interests of Hutchison MediPharma during the term of the executive officer's employment. These executive officers also enjoy the Hutchison Provident Fund retirement scheme, medical coverage under the Hutchison Group Medical Scheme and personal accident insurance.

We may terminate an executive officer's employment for cause at any time without notice. Termination for cause may include a serious breach of our internal rules and policies, serious negligence in the executive officer's performance of his or her duties, an accusation or conviction of a criminal offence, acquisition of another job which materially affects the executive officer's ability to perform his or her duties for our company and other circumstances stipulated by applicable PRC laws. We may terminate an executive officer's employment with three months' prior notice if the executive officer is unable to perform his or her duties (after the expiration of the prescribed medical treatment period) because of an illness or non-work-related injury or the executive officer is incompetent and remains incompetent after training or adjustment of his or her position. The executive officer may voluntarily terminate his or her contract without cause with three months' prior notice. The executive officer may also terminate the employment agreement immediately for cause, which includes a failure by us to provide labor protection and the work conditions as specified under the employment agreement. In case of termination for any reason, we agree to make any mandatory severance payments required by the relevant PRC labor laws.

The following table sets forth information concerning the outstanding equity awards held by our chief executive officer, chief financial officer, chief scientific officer and other executive officers on an aggregate basis as of December 31, 2018.

The following table sets forth information concerning the outstanding LTIP grants held by our chief executive officer, chief financial officer, chief scientific officer and other executive officers on an aggregate basis as of December 31, 2018.

The following table sets forth a summary of the compensation we paid to our directors other than Christian Hogg, Johnny Cheng and Weiguo Su during 2018. Other than as set forth in the table below, we did not pay any compensation, make any equity awards or non-equity awards to, or pay any other compensation to such directors.

We have two share option schemes. We refer to these collectively as the Chi-Med Option Schemes. Our shareholder adopted the first Chi-Med Option Scheme, or the 2005 Chi-Med Option Scheme, in June 2005, and it was subsequently approved by the shareholders of Hutchison Whampoa Limited, our then majority shareholder, in May 2006 and later amended by our board of directors in March 2007. This share option scheme expired in 2016. In April 2015, our shareholders adopted the second Chi-Med Option Scheme, or the 2015 Chi-Med Option Scheme, which was later approved by the shareholders of CK Hutchison, the ultimate parent of our majority shareholder, in May 2016.

We also have a long-term incentive scheme which was adopted by our shareholders in April 2015. We refer to this as our LTIP.

In addition, our subsidiary Hutchison MediPharma Holdings has two share option schemes. We refer to these collectively as the Hutchison MediPharma Option Schemes. The first Hutchison MediPharma Option Scheme, or the 2008 Hutchison MediPharma Option Scheme, was adopted in August 2008 upon approval by its shareholder. The 2008 Hutchison MediPharma Option Scheme was thereafter amended by the board of directors of Hutchison MediPharma Holdings in April 2011 and expired in 2014. The second Hutchison MediPharma Option Scheme, or the 2014 Hutchison MediPharma Option Scheme, was adopted in December 2014 upon approval by its shareholders.

Our Chi-Med Option Schemes, our LTIP and the 2014 Hutchison MediPharma Option Scheme each terminate on the tenth anniversary of their adoption. Each may also be terminated by its board of directors at any time. Any termination of the scheme is without prejudice to the awards outstanding at such time. Options are no longer being granted under the 2005 Chi-Med Option Scheme or the 2008 Hutchison MediPharma Option Scheme, but outstanding awards under the 2005 Chi-Med Option Scheme continue to be governed by the terms thereof.

The following describes the material terms of our Chi-Med Option Schemes, our LTIP and the Hutchison MediPharma Option Schemes, or collectively the Schemes.

Awards and Eligible Grantees. The Schemes provide for the award of share options exercisable for ordinary shares of our company (in the case of the Chi-Med Option Schemes) or ordinary shares of Hutchison MediPharma Holdings (in the case of the Hutchison MediPharma Option Schemes) to Eligible Employees (as defined in the Chi-Med Option Schemes) or non-executive directors (excluding any independent non-executive directors under the Chi-Med Option Schemes).

Under our LTIP, awards in the form of contingent rights to receive either shares or cash payments may be granted to the directors of our company, directors of our subsidiaries and employees of our company, subsidiaries, affiliates or such other companies as determined by our board of directors in its absolute discretion.

Scheme Administration. Our board of directors has delegated its authority for administering our Chi-Med Option Schemes and our LTIP to our remuneration committee. The board of directors of Hutchison MediPharma Holdings is responsible for administering the Hutchison MediPharma Option Schemes. Each such plan administrator has the authority to, among other things, select participants and determine the amount and terms and conditions of the awards under the applicable Schemes as it deems necessary and proper, subject to the restrictions described in "—Restrictions on Grants" below.

Restrictions on Grants. Under the Chi-Med Option Schemes, grants may not be made to independent non-executive directors. Furthermore, those grants may not be made to any of our employees or directors if such person is also a director, chief executive or substantial shareholder of any of our direct or indirect parent companies which is listed on a stock exchange, including CK Hutchison, or any of its associates without approval by the independent non-executive directors of such parent company (excluding any independent non-executive director who is a proposed grantee). In addition, approval by our shareholders

and the shareholders of such listed parent company is required if an option grant under the Chi-Med Option Schemes is to be made to a substantial shareholder or independent non-executive director of a listed parent company or any of its associates and, upon exercise of such grant and any other grants made during the prior 12-month period to that shareholder, that individual would receive an amount of our ordinary shares equal or greater than 0.1% of our total outstanding shares or with an aggregate value in excess of HK$5 million (equivalent to $0.6 million as of December 31, 2017). The Hutchison MediPharma Option Schemes do not contain these restrictions.

In addition, options under our Chi-Med Option Schemes and the Hutchison MediPharma Option Schemes may not be granted to any individual if, upon the exercise of such options, the individual would receive an amount of shares when aggregated with all other options granted to such individual under the applicable Scheme in the 12-month period up to and including the grant date, that exceeds 1% of the total shares outstanding of the company granting the award on such date. In the event a grant of share options would exceed 1% of the total number of issued shares of Hutchison MediPharma Holdings, our company must also approve the grant. There are no individual limits under the LTIP.

Under our LTIP, no grant to any director, chief executive or substantial shareholder of our company may be made without the prior approval of our independent non-executive directors (excluding an independent non-executive director who is a proposed grantee).

Vesting. Vesting conditions of options granted under the Schemes are determined by the respective board of directors at the time of grant. Any options granted are normally exercisable to the extent vested within the period specified by the applicable Scheme, which ranges from six to ten years after the date of grant.

Under the Chi-Med Share Option Schemes and the Hutchison MediPharma Option Schemes, if a participant has committed any misconduct or any conduct making such participant's service terminable for cause, all options (whether vested or unvested) lapse unless the respective board of directors otherwise determines in its absolute discretion. Options may be exercised to the extent vested where a participant's service ceases due to the participant's death, serious illness, injury, disability, retirement at the applicable retirement age, or earlier if determined by the participant's employer, or if a participant's service ceases for any other reason other than for cause.

Under the LTIP, if a participant's employment or service with our company or its subsidiaries is terminated for cause or if the participant breaches certain provisions in the LTIP restricting the transfer of awards by grantees and imposing non-competition obligations on grantees, all unvested awards are automatically cancelled. Where a participant's employment or service ceases for any reason other the reasons listed above (including due to the participant's resignation, retirement, death or disability or upon the non-renewal of such participant's employment or service agreement other than for cause), our board of directors may determine at its discretion whether unvested awards shall be deemed vested.

Exercise Price. The exercise price for each share pursuant to the initial options granted under the 2005 Chi-Med Option Scheme was a price determined by our board of directors at the date of grant, and for grants made thereafter, the exercise price was the Market Value of a share at the date of grant (as defined in the Chi-Med Option Schemes). The exercise price for each share pursuant to options granted under our 2008 Hutchison MediPharma Option Scheme was a price determined by the board of directors of Hutchison MediPharma Holdings.

The exercise price for each share pursuant to the options granted under the 2015 Chi-Med Option Scheme must be the Market Value of a share at the date of grant (as defined in the Chi-Med Option Schemes). The exercise price for each share pursuant to options granted under the 2014 Hutchison MediPharma Option Scheme will be determined by the boards of directors of Hutchison MediPharma Holdings at the date of grant.

Non-transferability of Awards. Awards may not be transferred except in the case of a participant's death by the terms of each Scheme.

Takeover or Scheme of Arrangement. In the event of a general or partial offer for the shares of our company (under the Chi-Med Option Schemes) or Hutchison MediPharma Holdings (under the Hutchison MediPharma Option Schemes), whether by way of takeover, offer, share repurchase offer, or scheme of arrangement, the affected company is required to use all reasonable endeavors to procure that such offer is extended to all holders of options granted by such company on the same terms as those applying to shareholders. Both vested and unvested options may be exercised up until (i) the closing date of any such offer, (ii) the record date for entitlements under a scheme of arrangement, or (iii) two business days prior to any general meeting of members convened to consider such offer (under the 2014 Hutchison MediPharma Option Scheme), and will lapse thereafter. Certain options may also be exercised on a voluntary winding up of our company or Hutchison MediPharma Holdings, as the case may be.

Under our LTIP, in the event of a general offer for all the shares of our company, whether by way of takeover or scheme of arrangement, or if our company is to be voluntarily wound up, our board of directors shall determine in its discretion whether outstanding unvested awards will vest and the period within which such awards will vest.

Amendment. The Chi-Med Option Schemes require that amendments of a material nature only be made with the approval of our shareholders and approval of any of our direct or indirect parent companies which is listed on a stock exchange, including CK Hutchison. The Hutchison MediPharma Option Schemes may be altered by the board of directors of our company or Hutchison MediPharma Holdings, as the case may be, but any amendments which provide a material advantage to grantees cannot take effect without shareholders' approval.

Our board of directors may alter the LTIP, but amendments which are of a material nature cannot take effect without shareholders' approval, unless the changes take effect automatically under the terms of the LTIP.

Authorized Shares. Subject to certain adjustments for share splits, share consolidations and other changes in capitalization, the maximum number of shares that may be issued upon exercise of all options granted may not in the aggregate exceed: (i) 4% of our shares outstanding on the date of adoption of the 2015 Chi-Med Option Scheme or (ii) 5% of the shares of Hutchison MediPharma Holdings outstanding on the date of adoption under the 2014 Hutchison MediPharma Option Scheme. In addition, under our 2015 Chi-Med Option Scheme, our board of directors may, with the approval of the shareholders of any of our direct or indirect parent companies which is listed on a stock exchange, including CK Hutchison, "refresh" the 4% scheme limit provided that the total number of shares which may be issued upon exercise of all options to be granted under the Chi-Med Option Schemes shall not exceed 10% of our total shares outstanding on such date. Further, the maximum number of shares that may be issued upon exercise of all options granted and not yet exercised under the 2015 Chi-Med Option Scheme, when combined with options granted and not yet exercised under any other schemes of our company or our subsidiaries must not exceed 10% of our shares outstanding on such date.

Share awards under our LTIP may not exceed 5% of our shares outstanding on the adoption date of the LTIP.

In the year ended December 31, 2018, we granted options to purchase an aggregate of 1,060,626 ordinary shares, representing approximately 1.6% of our outstanding share capital, at a weighted average exercise price of £46.87 ($59.53) per share under the 2015 Chi Med Option Scheme. The options expire 10 years from the date of grant.

In the year ended December 31, 2018, we granted awards under our LTIP to 16 senior managers, executives and directors, giving them a conditional right to receive ordinary shares to be purchased by the third-party trustee up to an aggregate maximum cash amount of $1,546,451. These awards are related to the achievement of performance targets. These LTIP awards vest after three years, subject to the continued employment of the LTIP holder.

As of December 31, 2018, LTIP awards representing a maximum cash amount of $5,622,729 and $7,111,725 were outstanding for financial years 2018 and 2019 respectively.

Our board of directors consists of ten directors including four executive directors, two non-executive directors and four independent non-executive directors. Pursuant to a relationship agreement dated April 21, 2006 by and between our company and Hutchison Whampoa (China) Limited, a parent company of Hutchison Healthcare Holdings Limited, or the Relationship Agreement, our board of directors must consist of at least one director who is independent of the Hutchison Whampoa Limited group so long as Hutchison Whampoa (China) Limited is entitled to cast at least 50% votes eligible to be cast on a poll vote at a general meeting of our company. The Relationship Agreement will continue in effect until our ordinary shares cease to be traded on the AIM market or the CK Hutchison group individually or collectively ceases to hold at least 30% of our shares.

Our directors are subject to a three-year term of office and hold office until such time as they wish to retire and not offer themselves up for re-election, are not re-elected by the shareholders, or are removed from office by special resolution at an annual general meeting of the shareholders. Under our articles of association, a director will be removed from office automatically if, among other things, the director (i) becomes bankrupt or makes any arrangement or composition with his creditors; or (ii) is found to be or becomes of unsound mind. For information regarding the period during which our officers and directors have served in their respective positions, please see Item 6.A. "Directors and Senior Management."

Our board of directors has established an audit committee, a remuneration committee and a technical committee.

Our audit committee consists of Graeme Jack, Paul Carter and Karen Ferrante, with Graeme Jack serving as chairman of the committee. Graeme Jack, Paul Carter and Karen Ferrante each meet the independence requirements under the rules of the Nasdaq Stock Market and under Rule 10A-3 under the Exchange Act. We have determined that Graeme Jack is an "audit committee financial expert" within the meaning of Item 407 of Regulation S-K. All members of our audit committee meet the requirements for financial literacy under the applicable rules and regulations of the SEC and the Nasdaq Stock Market.

Although we are a foreign private issuer, we are required to comply with Rule 10A-3 of the Exchange Act, relating to audit committee composition and responsibilities. Rule 10A-3 provides that the audit

committee must have direct responsibility for the nomination, compensation and choice of our auditor, as well as control over the performance of their duties, management of complaints made, and selection of consultants. Under Rule 10A-3, if the governing law or documents, of a listed issuer require that any such matter be approved by the board of directors or the shareholders of the company, the audit committee's responsibilities or powers with respect to such matter may instead be advisory. Our articles of association provide that the audit committee may only have an advisory role and appointment of our auditor must be decided by our shareholders at our annual general meeting or at a subsequent extraordinary general meeting in each year.

The audit committee formally meets at least twice a year and otherwise as required. The audit committee's purpose is to oversee our accounting and financial reporting process and the audit of our financial statements. Our audit committee's primary duties and responsibilities are to:

In relation to our internal controls and risk management systems, our audit committee, among other things:

The audit committee is authorized to obtain, at our company's expense, reasonable outside legal or other professional advice on any matters within the scope of its responsibilities.

Our remuneration committee consists of Paul Carter, Graeme Jack and Simon To, with Paul Carter serving as chairman of the committee. The remuneration committee is responsible for considering all material elements of remuneration policy and remuneration and incentives of our executive directors and key employees with reference to independent remuneration research and professional advice. The remuneration committee meets formally at least once each year and otherwise as required and make recommendations to our board of directors on the framework for executive remuneration and on proposals for the granting of share options and other equity incentives. Our board of directors is responsible for implementing these recommendations and agreeing the remuneration packages of individual directors. No director is permitted to participate in discussions or decisions concerning his or her own remuneration.

Our technical committee consists of Karen Ferrante, Paul Carter, Simon To, Christian Hogg, Weiguo Su and Tony Mok, with Karen Ferrante serving as chairperson of the committee. The technical committee's responsibility is to consider, from time to time, matters relating to the technical aspects of the research and development activities of our Innovation Platform. It invites such executives as it deems appropriate to participate in meetings from time to time.

The U.K. Corporate Governance Code published by the U.K. Financial Reporting Council is the primary source of corporate governance standards for companies in the United Kingdom, and it is recognized as a best practice for companies whose shares are admitted to trading on the AIM market of the London Stock Exchange.

The U.K. Corporate Governance Code is comprised of main and supporting principles of good governance addressing the following areas: director practices, directors' remuneration, accountability and audit and relations with shareholders and institutional investors. It also includes detailed recommendations derived from these principles, such as: the roles of board chairman and chief executive officer should not be exercised by the same individual and the chairman of the board should ensure that new directors receive

a full, formal and tailored induction on joining the board. For the year ended December 31, 2018, we have voluntarily complied with all of the principles of the U.K. Corporate Governance Code except in relation to the recommendations under provisions B.1.2 (Composition of the Board) that at least half of the board, excluding the chairman, comprise independent non-executive directors, B.2.1 (Nomination Committee) that the board establish a nominating committee and B.6.2 (Evaluation) that the board conduct an externally led evaluation.

Except for general fiduciary duties and duties of care, Cayman Islands law has no specific corporate governance regime which prescribes specific corporate governance standards on our directors. See Item 16G. "Corporate Governance" for a discussion of such Cayman Islands law requirements applicable to our company.

Our board of directors has adopted a code of ethics to set standards for our directors, officers and employees as are reasonably necessary to promote (i) honest and ethical conduct, including the ethical handling of actual or apparent conflicts of interest between personal and professional relationships; (ii) full, fair, accurate, timely and understandable disclosure in the reports and documents that we file or submit to the applicable stock exchanges, and in any other public communications; (iii) compliance with applicable governmental and regulatory laws, rules, codes and regulations; (iv) prompt internal reporting of any violations of the code of ethics; and (v) accountability for adherence to the code of ethics.

Our board of directors has adopted a code of ethics for our business partners, including our suppliers, vendors, customers, agents, contractors, joint venture partners and representatives. This code of ethics contains general guidelines to promote the standards outlined in our internal code of ethics as described above.

Our board of directors has adopted procedures for the confidential receipt, retention, and treatment of complaints from, or concerns raised by, employees regarding accounting, internal accounting controls and auditing matters as well as illegal or unethical matters. The complaint procedures are reviewed by the audit committee from time to time as warranted to ensure their continuing compliance with applicable laws and listing standards as well as their effectiveness.

Our board of directors has adopted an information security policy to define and help communicate the common policies for information confidentiality, integrity and availability to be applied to us and our joint ventures. The purpose of the information security policy is to ensure business continuity by preventing and minimizing the impact of security risks within our company and our joint ventures. Our information security policy applies to all of our and our joint ventures' business entities across all countries. It applies to the creation, communication, storage, transmission and destruction of all different types of information. It applies to all forms of information, including but not limited to electronic copies, hardcopy, and verbal disclosures whether in person, over the telephone, or by other means.

Our board of directors has adopted a policy on the handling of material inside information, consisting of information which is either "inside information" under the EU Market Abuse Regulation (Regulation (EU) 596/2014), or MAR, or "material non-public information" under U.S. law. This policy, among other things, prohibits any employees, directors, other persons discharging managerial responsibilities or their

connected persons dealing in our securities or their derivatives, or those of our collaborators, business partners, suppliers and customers, while in possession of material inside information. Certain members of our senior management or staff, including persons discharging managerial responsibilities, and their connected persons are subject to additional compliance requirements which are outlined in the code (including but not limited to obtaining written pre-clearance from designated members of management prior to any dealing in any such securities is allowed).

Our board of directors has established a board diversity policy as our board of directors recognizes the benefits of a board of directors that possesses a balance of skills, experience, expertise, independence and knowledge and diversity of perspectives appropriate to the requirements of our businesses.

We maintain that appointment to our board of directors should be based on merit that complements and expands the skills, experience, expertise, independence and knowledge of the board of directors as a whole, taking into account gender, age, professional experience and qualifications, cultural and educational background, and any other factors that our board of directors might consider relevant and applicable from time to time towards achieving a diverse board of directors.

As of December 31, 2016, 2017 and 2018, we had 563, 590 and 714 full-time employees, respectively. None of our employees are represented by labor unions or covered by collective bargaining agreements. The number of employees by function as of the end of the period for our fiscal years ended December 31, 2016, 2017 and 2018 was as follows:

As of December 31, 2018, a total of 72 employees on our Innovation Platform's research and development team have M.D. or Ph.D. degrees. Additionally, our Commercial Platform joint venture Shanghai Hutchison Pharmaceuticals employed a total of 3,093 full-time employees, and Hutchison Baiyunshan employed a total of 1,702 full-time employees and 3,499 outsourced contract staff, who are mostly sales representatives and manufacturing employees as of December 31, 2018. Their employees are represented by labor unions and covered by collective bargaining agreements. To date, neither Shanghai Hutchison Pharmaceuticals nor Hutchison Baiyunshan has experienced any strikes, labor disputes or industrial actions which had a material effect on their business, and consider their relations with the union and our employees to be good.

See Item 6 B. "Compensation" and Item 7 "Major Shareholders and Related Party Transactions."

We had 66,657,745 ordinary shares outstanding as of December 31, 2018. The following table and accompanying footnotes set forth information relating to the beneficial ownership of our ordinary shares as of December 31, 2018 by:

Our major shareholders do not have voting rights that are different from our shareholders in general. Beneficial ownership is determined in accordance with the rules and regulations of the SEC.

Name of beneficial owner

Executive Officers and Directors:**
Christian Hogg	1,093,802		44,826	⁽¹⁾	1.7%
Johnny Cheng	256,146		6,004	⁽¹⁾	*
Simon To	180,000		133,237		*
Edith Shih	70,000		100,000		*
Weiguo Su	325,000	⁽²⁾	58,178	⁽¹⁾	*
Dan Eldar	1,900		8,993		*
Tony Mok	—		10,002		*
Paul Carter	3,524		—		*
Karen Ferrante	—		5,785		*
Graeme Jack	—		3,000		*
Ye Hua⁽³⁾	—		*	⁽¹⁾	*
May Wang	*	⁽²⁾	*	⁽¹⁾	*
Zhenping Wu	*	⁽²⁾	*	⁽¹⁾	*
Mark Lee	*	⁽²⁾	*	⁽¹⁾	*
All Executive Officers and Directors as a Group	2,225,625	⁽⁴⁾	473,201		3.7%
Principal Shareholder:
Hutchison Healthcare Holdings Limited⁽⁵⁾	36,666,667		6,862,420		60.2%

As of December 31, 2018, based on public filings with the SEC and on AIM, there are no major shareholders holding 5% or more of our ordinary shares or ADSs representing ordinary shares, except as described above. As of December 31, 2018, there was one ordinary shareholder of record with an address in the United States. Deutsche Bank Trust Company America, the depositary of our ADS program, held 16,924,125 ordinary shares as of that date in the name of DB London (Investors Services) Nominees Limited.

To our knowledge, except as disclosed above, we are not owned or controlled, directly or indirectly, by another corporation, by any foreign government or by any other natural or legal person or persons, severally or jointly. To our knowledge, there are no arrangements the operation of which may at a subsequent date result in us undergoing a change in control. Our major shareholders do not have different voting rights than any of our other shareholders.

CK Hutchison has issued letters of awareness to our lenders, Scotiabank, Bank of America N.A., Deutsche Bank AG and HSBC, and committed not to reduce its shareholding to less than 40% of our issued share capital while such loans are outstanding. Hutchison Whampoa Limited, a wholly owned subsidiary of CK Hutchison, guaranteed our previous term loan with Scotiabank until such loan was fully repaid in November 2017.

See Item 3.D. "Risk Factors—Risks Related to Our Financial Position and Need for Capital—If the CK Hutchison group ceases to own a majority stake in our company, we may incur significantly higher borrowing costs."

We entered into a relationship agreement dated April 21, 2006 with Hutchison Whampoa (China) Limited, which is an indirect wholly owned subsidiary of CK Hutchison, with a view to ensuring that our company is capable of carrying on its business independently of the CK Hutchison group. We refer to this agreement as the Relationship Agreement. The Relationship Agreement provides, among other things, that all transactions between any of us or our joint ventures, on the one hand, and the CK Hutchison group, on the other hand, will be on an arm's length basis, on normal commercial terms and in a manner consistent with the AIM Rules. Hutchison Whampoa (China) Limited has agreed that, so long as it holds shares (either directly or indirectly) which in aggregate entitle Hutchison Whampoa (China) Limited to cast at least 50% of the votes eligible to be cast on a poll vote at a general meeting of our company, it shall procure (so far as it is able to use its power as a shareholder) that at least one member of our board of directors is independent of the CK Hutchison group. The Relationship Agreement further provides that the approval of our board of directors shall be required for any transaction between any of us or our joint ventures, on one hand, and the CK Hutchison group, on the other hand, and that in approving any such transaction, our board of directors must consist of at least one director who is independent of CK Hutchison. Hutchison Whampoa (China) Limited has also agreed to procure that each member of the Hutchison Whampoa (China) Limited group will not exercise its voting rights and powers so as to amend our memorandum or articles of association in a manner which is inconsistent with the Relationship Agreement. The Relationship Agreement will continue until the first to occur of: (i) our shares ceasing to

be traded on the AIM market or (ii) the CK Hutchison group individually or collectively cease to hold or control the exercise of at least 30% or more of the rights to vote at our general meetings.

We have entered into agreements with members of the CK Hutchison group, including the retail grocery and pharmacy chains PARKnSHOP and Watsons which are owned and operated by the A.S. Watson Group, an indirect subsidiary of CK Hutchison, in respect of the distribution of certain of our Commercial Platform products. For the year ended December 31, 2018, sales of our products to members of the CK Hutchison group amounted to $8.3 million. In addition, for the year ended December 31, 2018, we paid approximately $0.5 million to members of the CK Hutchison group for the provision of marketing services associated with these products. Our sales to CK Hutchison group companies are made pursuant to purchase orders issued by each purchaser periodically, the terms of which are on an arm's length basis on normal commercial terms.

See Item 3.D. "Risk Factors—Risks Related to our Dependence on Third Parties—There is no assurance that the benefits currently enjoyed by virtue of our association with CK Hutchison will continue to be available" for more information on the risks associated with our relationship with CK Hutchison's group companies.

We conduct our business using trademarks with various forms of the "Hutchison," "Chi-Med" and "China-MediTech" brands, as well as domain names incorporating some or all of these trademarks. We have entered into a brand license agreement dated April 21, 2006 with Hutchison Whampoa Enterprises Limited, which is an indirect wholly owned subsidiary of CK Hutchison, pursuant to which we have been granted a non-exclusive, non-transferrable, royalty-free right to use such trademarks, domain names and other intellectual property rights owned by the CK Hutchison group in connection with the operation of our business worldwide. We refer to this agreement as the Brand License Agreement. We are also permitted to sub-license such intellectual property rights to our affiliates.

The Brand License Agreement contains provisions on quality control pursuant to which we are obliged to use the brands and related materials in compliance with the brand guidelines, industry best practice and other quality directives issued by Hutchison Whampoa Enterprises Limited from time to time. Under this agreement, we assign all intellectual property rights, including future copyrights in any works incorporating brand-related material or translations thereof, to Hutchison Whampoa Enterprises Limited (subject to any third-party rights).

Hutchison Whampoa Enterprises Limited may terminate the Brand License Agreement (or any sub-license) if, among other things, we commit a material breach of the agreement, or within any twelve-month period aggregate direct or indirect shareholding in our company held by Hutchison Whampoa Limited, our indirect shareholder, is reduced to less than 50%, 40%, 30% or 20%. On termination of the Brand License Agreement, we (and any sub-licensees) must immediately cease using the brands and are obliged to withdraw from sale any products bearing the brands; provided that if the agreement is terminated following a change in Hutchison Whampoa Limited's aggregate direct or indirect shareholding in our company, we will have a six-month transitional period during which we can continue to use the licensed rights. Hutchison Whampoa Limited's interest in our company is less than 20%, but we do not anticipate that Hutchison Whampoa Enterprises Limited will terminate such license in the foreseeable future.

Hutchison Whampoa Enterprises Limited has also granted a royalty-free license to use the Hutchison name and associated trademarks to Hutchison Baiyunshan. The license has a term equal to the operational period of the joint venture but may be terminated by the licensor if, among other things, Hutchison Baiyunshan is in breach of the terms of the license and fails to remedy that breach after an arbitration

award is issued against Hutchison Baiyunshan, the joint venture agreement terminates, or our company's interest in Hutchison Baiyunshan falls below 50%.

Pursuant to an amended and restated services agreement dated January 1, 2016 between us and Hutchison Whampoa (China) Limited, an indirect wholly owned subsidiary of CK Hutchison, we share certain services with and receive operational support from the CK Hutchison group including, among others, legal and regulatory services, company secretarial support services, tax and internal audit services, shared use of accounting software system and related services, participation in the CK Hutchison group's pension, medical and insurance plans, participation in the CK Hutchison group's procurement projects with third-party vendors/suppliers, other staff benefits and staff training services, company functions and activities and operation advisory and support services. We refer to this amended and restated agreement as the Services Agreement. The Services Agreement replaces our prior services agreement with Hutchison Whampoa (China) Limited, dated April 21, 2006, which had substantially similar terms. We pay a management fee to Hutchison Whampoa (China) Limited for the provision of such services. In addition, we make payments under the Services Agreement to Hutchison Whampoa (China) Limited for our executive offices in Hong Kong. Furthermore, pursuant to the terms of the Services Agreement, Hutchison Whampoa (China) Limited charges us management fees and other costs through Hutchison Healthcare Holdings Limited, its wholly owned subsidiary.

The Services Agreement may be terminated by either party by giving three months' written notice. Hutchison Whampoa (China) Limited may also immediately terminate if its shareholding in our company falls below 30%. The services provided under the Services Agreement are provided on an arm's length basis, on normal commercial terms.

Any amount unpaid after 30 days accrues interest at the rate of 1.5% per annum. In the year ended December 31, 2018, we paid a management fee of approximately $0.9 million under the Services Agreement. As of December 31, 2018, we had $0.4 million in unpaid fees outstanding to Hutchison Whampoa (China) Limited.

In connection with our underwritten public offering in 2017, Hutchison Healthcare Holdings Limited subscribed for 6,862,420 ADSs for gross consideration of approximately $181.9 million.

Research and development services provided to Nutrition Science Partners. On March 25, 2013, we entered into a research and development collaboration agreement with Nestlé Health Science under which we have provided certain research and development services to Nutrition Science Partners. On the same date, in connection with that agreement, we entered into a services agreement with our non-consolidated joint venture Nutrition Science Partners to provide it with the research and development services in relation to the HMPL-004 project. We provided these services on a fee-for-service basis. See Item 4.B. "Business Overview—Overview of Our Collaborations" for more information. For the year ended December 31, 2018, we received approximately $7.0 million for the provision of these research and development services to Nutrition Science Partners. In 2018, we and Nestlé Health Science reviewed the status of the HMPL-004/HM004-6599 program, and we do not expect to receive any such revenue in the future.

Intellectual property rights provided to Nutrition Science Partners. Under the terms of an assignment agreement dated November 26, 2013, we have assigned full title to intellectual property rights

in connection with the HMPL-004/HM004-6599 compound on a worldwide basis to Nutrition Science Partners in exchange for $30 million paid by Nutrition Science Partners to us.

Loans provided to Nutrition Science Partners. We and Nestlé Health Science, our joint venture partner in Nutrition Science Partners, had each provided a loan in the principal amount of $5.0 million to Nutrition Science Partners under loan agreements each dated June 10, 2014, which were amended on August 24, 2015. After such amendments, each of the loans has a two-year renewable term with a maturity date of June 9, 2016. In addition, we and Nestlé Health Science have each provided a loan in the principal amount of $2.0 million to Nutrition Science Partners under loan agreements each dated August 24, 2015. During 2016, we and Nestlé Health Science agreed to waive the $7.0 million in loans to Nutrition Science Partners, and each party capitalized the outstanding amount as share capital. Additionally, in 2016, 2017 and 2018 we provided $5.0 million, $7.0 million and $8.0 million, respectively, in share capital to Nutrition Science Partners, with Nestlé Health Science providing the same amount.

Shanghai Hutchison Pharmaceuticals' provision of promotion and marketing services to Hutchison Sinopharm. On January 29, 2015, our consolidated joint venture Hutchison Sinopharm entered into an agreement with AstraZeneca to market and distribute Seroquel in China. This agreement was further amended on August 1, 2016, August 11, 2017, November 2, 2017 and June 27, 2018. In connection with Hutchison Sinopharm's agreement with AstraZeneca, Hutchison Sinopharm entered into an agreement with our non-consolidated joint venture Shanghai Hutchison Pharmaceuticals to provide certain promotion and marketing services within China for Seroquel. Under this agreement, Shanghai Hutchison Pharmaceuticals manages marketing and is paid a service fee for medical sales services, and Hutchison Sinopharm manages distribution and logistics for this product. In the year ended December 31, 2018, Hutchison Sinopharm paid Shanghai Hutchison Pharmaceuticals $12.7 million in connection with the provision of such services.

Hutchison Sinopharm's purchase of products from Hutchison Baiyunshan. On April 22, 2014, Hutchison Sinopharm entered into distribution agreements to purchase certain products manufactured by our non-consolidated joint venture Hutchison Baiyunshan. Under the terms of these agreements, Hutchison Sinopharm manages the distribution and delivery logistics of such products.

Hutchison Sinopharm's distribution agreement with Hutchison Baiyunshan has a one-year term. Hutchison Baiyunshan may terminate the agreement prior to that if Hutchison Sinopharm fails to purchase products from Hutchison Baiyunshan for three consecutive months, fails to achieve sales target, engages in sales outside of Shanghai, engages in unfair competition practices or distributes the products through channels other than hospitals without Hutchison Baiyunshan's consent. Hutchison Sinopharm and Hutchison Baiyunshan are in the process of renewing their agreement for the distribution of products.

In the year ended December 31, 2018, Hutchison Sinopharm purchased products from Hutchison Baiyunshan for an amount totaling $0.8 million in the aggregate.

Hutchison Healthcare's grant of license to distribute Zhi Ling Tong products to Hutchison Sinopharm. In January 2016, Hutchison Healthcare granted a license to Hutchison Sinopharm to distribute Chi-Med-owned Zhi Ling Tong infant nutrition products, which had previously been distributed by a third-party distributor. Under such license, Hutchison Sinopharm obtains exclusive distribution rights for Zhi Ling Tong infant nutrition products from Hutchison Healthcare within China which are subject to annual renewal reviews. The distribution rights were renewed for 2018.

Loans to Hutchison Hain Organic (Hong Kong) Limited. We and Hain Celestial each provided a loan in the principal amount of $2.55 million to Hutchison Hain Organic (Hong Kong) Limited, a wholly owned

subsidiary of our joint venture Hutchison Hain Organic, under loan agreements dated December 24, 2014. On July 15, 2016, Hutchison Hain Organic (Hong Kong) Limited repaid $1.0 million to each of us and Hain Celestial, after which $1.55 million remained outstanding under each loan agreement. Each of the loans had a four-year renewable term with a maturity date of October 8, 2018. Each loan bears an interest rate equal to the 3-month LIBOR plus 3% per annum, payable at maturity. On October 8, 2018, Hutchison Hain Organic (Hong Kong) Limited repaid the remaining outstanding $1.55 million to each of us and Hain Celestial.

See Item 6.B. "Compensation—Executive Officer Compensation" and "Compensation—Director Compensation" for a discussion of our compensation of directors and executive officers.

See Item 6.B. "Compensation—Equity Compensation Schemes and Other Benefit Plans."

We have entered into employment agreements with our executive officers. For more information regarding these agreements, see Item 6.B. "Compensation—Employment Arrangements with our Executive Officers."

We have entered into indemnification agreements with each of our directors and executive officers. We also maintain a general liability insurance policy which covers certain liabilities of our directors and executive officers arising out of claims based on acts or omissions in their capabilities as directors or officers.

There are no material legal proceedings pending or, to our knowledge, threatened against us. From time to time we become subject to legal proceedings and claims in the ordinary course of our business, including claims of alleged infringement of patents and other intellectual property rights. Such legal proceedings or claims, even if not meritorious, could result in the expenditure of significant financial and management resources.

We have never declared or paid dividends on our ordinary shares. We currently expect to retain all future earnings for use in the operation and expansion of our business and do not have any present plan to pay any dividends. The declaration and payment of any dividends in the future will be determined by our board of directors in its discretion, and will depend on a number of factors, including our earnings, capital requirements, overall financial condition, and contractual restrictions.

We have not experienced any significant changes since the date of our audited consolidated financial statements included in this annual report.

Our ADSs are listed on the Nasdaq Global Select and our ordinary shares are listed on the AIM market of the London Stock Exchange under the symbol "HCM."

The information contained under the caption of "Our Memorandum and Articles of Association" in the Company's Registration Statement on Form F-1 filed March 4, 2016 (file number 333-207447) is incorporated herein by reference.

Except as otherwise disclosed in this annual report (including the exhibits hereto), we are not currently, and have not been in the last two years, party to any material contract, other than contracts entered into in the ordinary course of our business.

Foreign currency exchange in the PRC is primarily governed by the Foreign Exchange Administration Rules issued by the State Council on January 29, 1996 and effective as of April 1, 1996 (and amended on January 14, 1997 and August 1, 2008) and the Regulations of Settlement, Sale and Payment of Foreign Exchange which came into effect on July 1, 1996.

Under the Foreign Exchange Administration Rules, renminbi is freely convertible for current account items, including the distribution of dividends payments, interest payments, trade and service-related foreign exchange transactions. Conversion of renminbi for capital account items, such as direct investment, loans, securities investment and repatriation of investment, however, is still generally subject to the approval or verification of the SAFE.

Under the Regulations of Settlement, Sale and Payment of Foreign Exchange, foreign invested enterprises including wholly foreign owned enterprises, may buy, sell or remit foreign currencies only at those banks that are authorized to conduct foreign exchange business after providing such banks with valid commercial supporting documents and, in the case of capital account item transactions, after obtaining approvals from the SAFE. Capital investments by foreign invested enterprises outside the PRC are also subject to limitations, which include approvals by the MOFCOM, the SAFE and the NDRC.

In March 2015, the SAFE released the Circular on Reforming the Management Approach regarding the Foreign Exchange Capital Settlement of Foreign-invested Enterprises, or FIEs, or the Foreign Exchange Capital Settlement Circular, which became effective from June 1, 2015. This circular replaced the SAFE's previous related circulars, including the Circular on Issues Relating to the Improvement of Business Operation with Respect to the Administration of Foreign Exchange Capital Payment and Settlement of Foreign Invested Enterprises. The Foreign Exchange Capital Settlement Circular clarifies

that FIEs may settle a specified proportion of their foreign exchange capital in banks at their discretion, and may choose the timing for such settlement. The proportion of foreign exchange capital to be settled at FIEs' discretion for the time being is 100% and the SAFE may adjust the proportion in due time based on the situation of international balance of payments. The circular also stipulates that FIEs' usage of capital and settled foreign exchange capital shall comply with relevant provisions concerning foreign exchange control and be subject to the management of a negative list. The FIEs' capital and Renminbi capital gained from the settlement of foreign exchange capital may not be directly or indirectly used for expenditure beyond the business scope of the FIEs or as prohibited by laws and regulations of the PRC. Such capital also may not be directly or indirectly used for issuing renminbi entrusted loans except as permitted by the business scope of the FIE, for repaying inter-enterprise borrowings including any third-party advance, or for repaying the bank loans denominated in renminbi that have been sub-lent to a third party.

In addition, the payment of dividends by entities established in the PRC is subject to limitations. Regulations in the PRC currently permit payment of dividends only out of accumulated profits as determined in accordance with accounting standards and regulations in the PRC. Each of our PRC subsidiaries and joint ventures that is a domestic company is also required to set aside at least 10.0% of its after-tax profit based on PRC accounting standards each year to its general reserves or statutory capital reserve fund until the accumulative amount of such reserves reach 50.0% of its respective registered capital. These restricted reserves are not distributable as cash dividends. In addition, if any of our PRC subsidiaries or joint ventures incurs debt on its own behalf in the future, the instruments governing the debt may restrict its ability to pay dividends or make other distributions to us.

For more information about foreign exchange control, see Item 3.D. "Risk Factors—Risks Related to Doing Business in China—Restrictions on currency exchange may limit our ability to utilize our revenues effectively."

The following is a general summary of certain PRC, Hong Kong, Cayman Islands and U.S. federal income tax consequences relevant to the acquisition, ownership and disposition of our ADSs. The discussion is not intended to be, nor should it be construed as, legal or tax advice to any particular individual. The discussion is based on laws and relevant interpretations thereof in effect as of March 1, 2018, all of which are subject to change or different interpretations, possibly with retroactive effect. The discussion does not address U.S. state or local tax laws, or tax laws of jurisdictions other than the PRC, Hong Kong, the Cayman Islands, the United Kingdom and the United States. You should consult your own tax advisors with respect to the consequences of acquisition, ownership and disposition of our ADSs and ordinary shares.

Under the EIT Law, which was promulgated on March 16, 2007 and subsequently amended on February 24, 2017 and December 29, 2018, and its implementation rules which became effective on January 1, 2008, the standard tax rate of 25% applies to all enterprises (including FIEs) with exceptions in special situations if relevant criteria are met and subject to the approval of the PRC tax authorities.

An enterprise incorporated outside of the PRC whose "de facto management bodies" are located in the PRC is considered a "resident enterprise" and will be subject to a uniform EIT rate of 25% on its global income. In April 2009, the SAT, in Circular 82, specified certain criteria for the determination of what constitutes "de facto management bodies." If all of these criteria are met, the relevant foreign enterprise will be deemed to have its "de facto management bodies" located in the PRC and therefore be considered a resident enterprise in the PRC. These criteria include: (a) the enterprise's day-to-day operational management is primarily exercised in the PRC; (b) decisions relating to the enterprise's

financial and human resource matters are made or subject to approval by organizations or personnel in the PRC; (c) the enterprise's primary assets, accounting books and records, company seals, and board and shareholders' meeting minutes are located or maintained in the PRC; and (d) 50% or more of voting board members or senior executives of the enterprise habitually reside in the PRC. In addition, an enterprise established outside the PRC which meets all of the aforesaid requirements is expected to make an application for the classification as a "resident enterprise" and this will ultimately be confirmed by the province-level tax authority. Although Circular 82 only applies to foreign enterprises that are majority-owned and controlled by PRC enterprises, not those owned and controlled by foreign enterprises or individuals, the determining criteria set forth in Circular 82 may be adopted by the PRC tax authorities as the test for determining whether the enterprises are PRC tax residents, regardless of whether they are majority-owned and controlled by PRC enterprises. However, it is not entirely clear how the PRC tax authorities will determine whether a non-PRC entity (that has not already been notified of its status for EIT purposes) will be classified as a "resident enterprise" in practice.

If a non-PRC enterprise is classified as a "resident enterprise" for EIT purposes, any dividends to be distributed by that enterprise to non-PRC resident shareholders or ADS holders or any gains realized by such investors from the transfer of shares or ADSs may be subject to PRC tax. If the PRC tax authorities determine that we should be considered a PRC resident enterprise for EIT purposes, any dividends payable by us to our non-PRC resident enterprise shareholders or ADS holders, as well as gains realized by such investors from the transfer of our shares or ADSs may be subject to a 10% withholding tax, unless a reduced rate is available under an applicable tax treaty. Furthermore, if we are considered a PRC resident enterprise for EIT purposes, it is unclear whether our non-PRC individual shareholders (including our ADS holders) would be subject to any PRC tax on dividends or gains obtained by such non-PRC individual shareholders. If any PRC tax were to apply to dividends realized by non-PRC individuals, it would generally apply at a rate of up to 20% unless a reduced rate is available under an applicable tax treaty.

According to the EIT Law, dividends declared after January 1, 2008 and paid by PRC FIEs to their non-PRC parent companies will be subject to PRC withholding tax at 10% unless there is a tax treaty between the PRC and the jurisdiction in which the overseas parent company is a tax resident and which specifically exempts or reduces such withholding tax, and such tax exemption or reduction is approved by the relevant PRC tax authorities. Pursuant to the Arrangement, if the non-PRC immediate holding company is a Hong Kong tax resident and directly holds a 25% or more equity interest in the PRC enterprise and is considered to be the beneficial owner of dividends paid by the PRC enterprise, such withholding tax rate may be lowered to 5%, subject to approval by the relevant PRC tax authorities in accordance with relevant tax regulations upon the assessment of beneficial ownership.

A business which provides certain services or sells/transfers immovable or intangible property within the PRC (including when either party of a transaction is within the PRC unless in specified situations) was liable to Business Tax at rates ranging from 3% to 20% of the charges for the services provided or immovable or intangible property sold or transferred (as the case may be). The Business Tax rate of 3% was applicable on taxable services relating to construction, culture and sports. All other services generally attracted a Business Tax rate of 5%, except that services relating to entertainment are subject to a rate ranging from 5% to 20%.

In addition, Business Tax was payable on the gross amount of all billings unless specific rules stipulated the use of a net amount.

A Municipal Maintenance Tax, together with an Education Surcharge and a Local Education Surcharge, were payable at a rate, in aggregate, of 6% to 12% of the Business Tax.

The Business Tax regime has been replaced in full with effect from 1 May 2016, as described in the section below on Value Added Tax, or VAT.

The Interim Regulations of the PRC on VAT, or the VAT Regulations, came into effect on January 1, 2009 (subsequently amended on February 6, 2016 and November 19, 2017). Pursuant to the VAT Regulations, VAT is imposed on the goods sold in or imported into the PRC and on processing, repair and replacement services provided within the PRC.

The pilot program of the PRC indirect tax reform was first implemented in Shanghai, the PRC, effective from January 1, 2012 where certain industries are transformed from the Business Tax regime to the VAT regime. The program was expanded in stages.

The MOF, and the SAT jointly promulgated the Circular on Comprehensively Promoting the Pilot Program of the Collection of VAT in Lieu of Business Tax, or the 2016 VAT Circular, on 23 March 2016, which came into effect on 1 May 2016. Pursuant to the 2016 VAT Circular, the sale of services, intangible assets or real property within the PRC (including when either party of a transaction is within the PRC unless in specified situations) is subject to VAT instead of Business Tax, with VAT rates being 6%, 11% or 17% and could be zero for certain specified cross border taxable items/services, in accordance with the relevant regulations. According to the Notice of the MOF and the SAT on Adjusting VAT Rates, which was promulgated on April 4, 2018 and became effective on May 1, 2018, the VAT rates are revised to 6%, 10% or 16%.

A Municipal Maintenance Tax, together with Education Surcharge and a Local Education Surcharge, are payable at a rate, in aggregate, of 6% to 12% of the VAT paid.

According to our Cayman Islands counsel, Conyers Dill & Pearman, the Cayman Islands currently levies no taxes on individuals or corporations based upon profits, income, gains or appreciation and there is no taxation in the nature of inheritance tax or estate duty. There are no other taxes likely to be material to us levied by the government of the Cayman Islands except for stamp duties which may be applicable on instruments executed in, or brought within the jurisdiction of the Cayman Islands. The Cayman Islands is a party to a double tax treaty entered into with the United Kingdom in 2010 but it is otherwise not a party to any double tax treaties that are applicable to any payments made to or by our company. There are no exchange control regulations or currency restrictions in the Cayman Islands.

Pursuant to the Tax Concessions Law (1999 Revision) of the Cayman Islands, Hutchison China MediTech Limited has obtained an undertaking from the Governor-in-Council: (a) that no law which is enacted in the Cayman Islands imposing any tax to be levied on profits or income or gains or appreciations shall apply to us or our operations; and (b) that the aforesaid tax or any tax in the nature of estate duty or inheritance tax shall not be payable on its shares, debentures or other obligations.

Hutchison China MediTech Limited is a Hong Kong tax resident. Hong Kong tax residents are subject to Hong Kong Profits Tax in respect of profits arising in or derived from Hong Kong at the current rate of 16.5%. Dividend income earned by a Hong Kong tax resident is generally not subject to Hong Kong Profits Tax.

No tax is payable in Hong Kong in respect of dividends paid by a Hong Kong tax resident to their shareholders, including our ADS holders.

Hong Kong Profits Tax will not be payable by our shareholders, including our ADS holders (other than shareholders / ADS holders carrying on a trade, profession or business in Hong Kong and holding the shares / ADSs for trading purposes), on any capital gains made on the sale or other disposal of the ADSs. Shareholders, including our ADS holders, should take advice from their own professional advisors as to their particular tax position.

No Hong Kong Stamp Duty is payable by our shareholders, including our ADS holders.

The following summary, subject to the limitations set forth below, describes the material U.S. federal income tax consequences for a U.S. Holder (as defined below) of the acquisition, ownership and disposition of ordinary shares and ADSs. This discussion is limited to U.S. Holders who hold such ordinary shares or ADSs as capital assets (generally, property held for investment). For purposes of this summary, a "U.S. Holder" is a beneficial owner of an ordinary share or ADS that is for U.S. federal income tax purposes:

Except as explicitly set forth below, this summary does not address aspects of U.S. federal income taxation that may be applicable to U.S. Holders subject to special rules, including:

In addition, this summary does not address the 3.8% Medicare contribution tax imposed on certain net investment income, the U.S. federal estate and gift tax or the alternative minimum tax consequences of the acquisition, ownership, and disposition of our ordinary shares or ADSs. We have not received nor do we expect to seek a ruling from the U.S. Internal Revenue Service, or the IRS, regarding any matter discussed herein. No assurance can be given that the IRS would not assert, or that a court would not sustain, a position contrary to any of those set forth below. Each prospective investor should consult its own tax advisors with respect to the U.S. federal, state, local and non-U.S. tax consequences of acquiring, owning and disposing of our ordinary shares and ADSs.

This discussion is based on the U.S. Internal Revenue Code of 1986, as amended, or the Code, U.S. Treasury Regulations promulgated thereunder and administrative and judicial interpretations thereof, and the income tax treaty between the PRC and the United States, or the U.S.-PRC Tax Treaty, each as available and in effect on the date hereof, all of which are subject to change or differing interpretations, possibly with retroactive effect, which could affect the tax consequences described herein. In addition, this summary is based, in part, upon representations made by the depositary to us and assumes that the deposit agreement, and all other related agreements, will be performed in accordance with their terms.

If an entity or arrangement treated as a partnership for U.S. federal income tax purposes holds our ordinary shares or ADSs, the tax treatment of the partnership and a partner in such partnership generally will depend on the status of the partner and the activities of the partnership. Such partner or partnership should consult its own tax advisors as to the U.S. federal income tax consequences of acquiring, owning and disposing of our ordinary shares or ADSs.

PROSPECTIVE INVESTORS SHOULD CONSULT THEIR OWN TAX ADVISORS WITH REGARD TO THE PARTICULAR TAX CONSEQUENCES APPLICABLE TO THEIR SITUATIONS AS WELL AS THE APPLICATION OF ANY U.S. FEDERAL, STATE, LOCAL, NON-U.S. OR OTHER TAX LAWS, INCLUDING GIFT AND ESTATE TAX LAWS.

A U.S. Holder of ADSs will generally be treated, for U.S. federal income tax purposes, as the owner of the underlying ordinary shares that such ADSs represent. Accordingly, no gain or loss will be recognized if a U.S. Holder exchanges ADSs for the underlying shares represented by those ADSs.

The U.S. Treasury has expressed concern that parties to whom ADSs are released before shares are delivered to the depositary or intermediaries in the chain of ownership between holders and the issuer of the security underlying the ADSs, may be taking actions that are inconsistent with the claiming of foreign tax credits by U.S. Holders of ADSs. These actions would also be inconsistent with the claiming of the reduced rate of tax, described below, applicable to dividends received by certain non-corporate U.S. Holders. Accordingly, the creditability of non-U.S. withholding taxes (if any), and the availability of the reduced tax rate for dividends received by certain non-corporate U.S. Holders, each described below, could be affected by actions taken by such parties or intermediaries. For purposes of the discussion below, we assume that intermediaries in the chain of ownership between the holder of an ADS and us are acting consistently with the claim of U.S. foreign tax credits by U.S. Holders.

As described in "Dividend Policy" above, we do not currently anticipate paying any distributions on our ordinary shares or ADSs in the foreseeable future. However, to the extent there are any distributions made with respect to our ordinary shares or ADSs, and subject to the discussion under "—Passive Foreign Investment Company Considerations" below, the gross amount of any such distribution (including withheld taxes, if any) made out of our current or accumulated earnings and profits (as determined for U.S. federal income tax purposes) will generally be taxable to a U.S. Holder as ordinary dividend income on the date such distribution is actually or constructively received. Distributions in excess of our current and accumulated earnings and profits will be treated as a non-taxable return of capital to the extent of the U.S. Holder's adjusted tax basis in the ordinary shares or ADSs, as applicable, and thereafter as capital gain. However, because we do not maintain calculations of our earnings and profits in accordance with U.S. federal income tax accounting principles, U.S. Holders should expect to treat distributions paid with respect to our ordinary shares and ADSs as dividends. Dividends paid to corporate U.S. Holders generally will not qualify for the dividends received deduction that may otherwise be allowed under the Code. This discussion assumes that distributions made by us, if any, will be paid in U.S. dollars.

Dividends paid to a non-corporate U.S. Holder by a "qualified foreign corporation" may be subject to reduced rates of U.S. federal income taxation if certain holding period and other requirements are met. A qualified foreign corporation generally includes a foreign corporation (other than a PFIC) if (1) its ordinary shares (or ADSs backed by ordinary shares) are readily tradable on an established securities market in the United States or (2) it is eligible for benefits under a comprehensive U.S. income tax treaty that includes an exchange of information program and which the U.S. Treasury Department has determined is satisfactory for these purposes.

IRS guidance indicates that our ADSs (which are listed on the Nasdaq Global Select Market) are readily tradable for purposes of satisfying the conditions required for these reduced tax rates. We do not expect, however, that our ordinary shares will be listed on an established securities market in the United States and therefore do not believe that any dividends paid on our ordinary shares that are not represented by ADSs currently meet the conditions required for these reduced tax rates. There can be no assurance that our ADSs will be considered readily tradable on an established securities market in subsequent years.

The United States does not have a comprehensive income tax treaty with the Cayman Islands. However, in the event that we were deemed to be a PRC resident enterprise under the EIT Law (see "—Taxation in the PRC" above), although no assurance can be given, we might be considered eligible for the benefits of the U.S.-PRC Tax Treaty for purposes of these rules. U.S. Holders should consult their own tax advisors regarding the availability of the reduced tax rates on dividends paid with respect to our ordinary shares or ADSs in light of their particular circumstances.

Non-corporate U.S. Holders will not be eligible for reduced rates of U.S. federal income taxation on any dividends received from us if we are a PFIC in the taxable year in which such dividends are paid or in the preceding taxable year unless, under certain circumstances, the "deemed sale election" described below under "—Passive Foreign Investment Company Considerations—Status as a PFIC" has been made.

In the event that we were deemed to be a PRC resident enterprise under the EIT Law (see "—Taxation in the PRC" above), U.S. Holders might be subject to PRC withholding taxes on dividends paid by us. In that case, subject to certain conditions and limitations, such PRC withholding tax may be treated as a foreign tax eligible for credit against a U.S. Holder's U.S. federal income tax liability under the U.S. foreign tax credit rules. For purposes of calculating the U.S. foreign tax credit, dividends paid on our ordinary shares or ADSs, will be treated as income from sources outside the United States and will generally constitute passive category income. If a U.S. Holder is eligible for U.S.-PRC Tax Treaty benefits, any PRC taxes on dividends will not be creditable against such U.S. Holder's U.S. federal income tax liability to the extent such tax is withheld at a rate exceeding the applicable U.S.-PRC Tax Treaty rate. An eligible U.S. Holder who does not elect to claim a foreign tax credit for PRC tax withheld may instead be

eligible to claim a deduction, for U.S. federal income tax purposes, in respect of such withholding but only for the year in which such U.S. Holder elects to do so for all creditable foreign income taxes. The U.S. foreign tax credit rules are complex. U.S. Holders should consult their own tax advisors regarding the foreign tax credit rules in light of their particular circumstances.

Subject to the discussion below in "—Passive Foreign Investment Company Considerations," upon the sale, exchange, or other taxable disposition of our ordinary shares or ADSs, a U.S. Holder generally will recognize gain or loss in an amount equal to the difference between the amount realized on such sale or exchange (determined in the case of sales or exchanges in currencies other than U.S. dollars by reference to the spot exchange rate in effect on the date of the sale or exchange or, if sold or exchanged on an established securities market and the U.S. Holder is a cash basis taxpayer or an electing accrual basis taxpayer, the spot exchange rate in effect on the settlement date) and the U.S. Holder's adjusted tax basis in such ordinary shares or ADSs determined in U.S. dollars. A U.S. Holder's initial tax basis will be the U.S. Holder's U.S. dollar purchase price for such ordinary shares or ADSs.

Assuming we are not a PFIC and have not been treated as a PFIC during the U.S. Holder's holding period for its ordinary shares or ADSs, such gain or loss will be capital gain or loss. Under current law, capital gains of non-corporate U.S. Holders derived with respect to capital assets held for more than one year are generally eligible for reduced rates of taxation. The deductibility of capital losses is subject to limitations. Capital gain or loss, if any, recognized by a U.S. Holder generally will be treated as U.S. source income or loss for U.S. foreign tax credit purposes. U.S. Holders are encouraged to consult their own tax advisors regarding the availability of the U.S. foreign tax credit in consideration of their particular circumstances.

If we were treated as a PRC resident enterprise for EIT Law purposes and PRC tax were imposed on any gain (see "—Taxation in the PRC" above), and if a U.S. Holder is eligible for the benefits of the U.S.-PRC Tax Treaty, the holder may be able to treat such gain as PRC source gain under the treaty for U.S. foreign tax credit purposes. A U.S. Holder will be eligible for U.S.-PRC Tax Treaty benefits if (for purposes of the treaty) such holder is a resident of the United States and satisfies the other requirements specified in the U.S.-PRC Tax Treaty. Because the determination of treaty benefit eligibility is fact-intensive and depends upon a holder's particular circumstances, U.S. Holders should consult their tax advisors regarding U.S.-PRC Tax Treaty benefit eligibility. U.S. Holders are also encouraged to consult their own tax advisors regarding the tax consequences in the event PRC tax were to be imposed on a disposition of ordinary shares or ADSs, including the availability of the U.S. foreign tax credit and the ability and whether to treat any gain as PRC source gain for the purposes of the U.S. foreign tax credit in consideration of their particular circumstances.

The rules governing PFICs can result in adverse tax consequences to U.S. Holders. We generally will be classified as a PFIC for U.S. federal income tax purposes if, for any taxable year, either: (1) 75% or more of our gross income consists of certain types of passive income, or (2) the average value (determined on a quarterly basis), of our assets that produce, or are held for the production of, passive income is 50% or more of the value of all of our assets.

Passive income generally includes dividends, interest, rents and royalties (other than certain rents and royalties derived in the active conduct of a trade or business), annuities and gains from assets that produce passive income. If a non-U.S. corporation owns at least 25% by value of the stock of another corporation, the non-U.S. corporation is treated for purposes of the PFIC tests as owning its proportionate share of the assets of the other corporation and as receiving directly its proportionate share of the other corporation's

income. Under this rule, we should be deemed to own a proportionate share of the assets and to have received a proportionate share of the income of our principal subsidiaries, including Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine Company Limited, Shanghai Hutchison Pharmaceuticals Limited and Nutrition Science Partners Limited, for purposes of the PFIC determination.

Additionally, if we are classified as a PFIC in any taxable year with respect to which a U.S. Holder owns ordinary shares or ADSs, we generally will continue to be treated as a PFIC with respect to such U.S. Holder in all succeeding taxable years, regardless of whether we continue to meet the tests described above, unless the U.S. Holder makes the "deemed sale election" described below. Furthermore, if we are treated as a PFIC, then one or more of our subsidiaries may also be treated as PFICs.

Based on certain estimates of our gross income and gross assets (which estimates are inherently imprecise) and the nature of our business, we do not believe that we are currently a PFIC. Notwithstanding the foregoing, the determination of whether we are a PFIC is made annually and depends on particular facts and circumstances (such as the valuation of our assets, including goodwill and other intangible assets) and also may be affected by the application of the PFIC rules, which are subject to differing interpretations. The fair market value of our assets is expected to depend, in part, upon (a) the market price of our ADSs, which is likely to fluctuate, and (b) the composition of our income and assets, which will be affected by how, and how quickly, we spend any cash that is raised in any financing transaction. In light of the foregoing, no assurance can be provided that we are not currently a PFIC or that we will not become a PFIC in any future taxable year. Prospective investors should consult their own tax advisors regarding our PFIC status.

If we are classified as a PFIC for any taxable year during which a U.S. Holder owns ordinary shares or ADSs, the U.S. Holder, absent certain elections (including the mark-to-market and QEF elections described below), generally will be subject to adverse rules (regardless of whether we continue to be classified as a PFIC) with respect to (1) any "excess distributions" (generally, any distributions received by the U.S. Holder on its ordinary shares or ADSs in a taxable year that are greater than 125% of the average annual distributions received by the U.S. Holder in the three preceding taxable years or, if shorter, the U.S. Holder's holding period) and (2) any gain realized on the sale or other disposition, including a pledge, of such ordinary shares or ADSs.

Under these rules (a) the excess distribution or gain will be allocated ratably over the U.S. Holder's holding period, (b) the amount allocated to the current taxable year and any taxable year prior to the first taxable year in which we are classified as a PFIC will be taxed as ordinary income and (c) the amount allocated to each other taxable year during the U.S. Holder's holding period in which we were classified as a PFIC (i) will be subject to tax at the highest rate of tax in effect for the applicable category of taxpayer for that year and (ii) will be subject to an interest charge at a statutory rate with respect to the resulting tax attributable to each such other taxable year. In addition, non-corporate U.S. Holders will not be eligible for reduced rates of taxation on any dividends received from us if we are a PFIC in the taxable year in which such dividends are paid or in the preceding taxable year.

If we are classified as a PFIC, a U.S. Holder will generally be treated as owning a proportionate amount (by value) of stock or shares owned by us in any direct or indirect subsidiaries that are also PFICs and will be subject to similar adverse rules with respect to any distributions we receive from, and dispositions we make of, the stock or shares of such subsidiaries. U.S. Holders are urged to consult their tax advisors about the application of the PFIC rules to any of our subsidiaries.

If we are classified as a PFIC and then cease to be so classified, a U.S. Holder may make an election (a "deemed sale election") to be treated for U.S. federal income tax purposes as having sold such U.S. Holder's ordinary shares or ADSs on the last day of our taxable year during which we were a PFIC. A U.S. Holder that makes a deemed sale election would then cease to be treated as owning stock in a PFIC.

However, gain recognized as a result of making the deemed sale election would be subject to the adverse rules described above and loss would not be recognized.

In certain circumstances, a holder of "marketable stock" of a PFIC can avoid certain of the adverse rules described above by making a mark-to-market election with respect to such stock. For purposes of these rules "marketable stock" is stock which is "regularly traded" (traded in greater than de minimis quantities on at least 15 days during each calendar quarter) on a "qualified exchange" or other market within the meaning of applicable U.S. Treasury Regulations. A "qualified exchange" includes a national securities exchange that is registered with the SEC.

A U.S. Holder that makes a mark-to-market election must include in gross income, as ordinary income, for each taxable year that we are a PFIC an amount equal to the excess, if any, of the fair market value of the U.S. Holder's ordinary shares or ADSs that are "marketable stock" at the close of the taxable year over the U.S. Holder's adjusted tax basis in such ordinary shares or ADSs. An electing U.S. Holder may also claim an ordinary loss deduction for the excess, if any, of the U.S. Holder's adjusted tax basis in such ordinary shares or ADSs over their fair market value at the close of the taxable year, but this deduction is allowable only to the extent of any net mark-to-market gains previously included in income pursuant to the mark-to-market election. The adjusted tax basis of a U.S. Holder's ordinary shares or ADSs with respect to which the mark-to-market election applies would be adjusted to reflect amounts included in gross income or allowed as a deduction because of such election. If a U.S. Holder makes an effective mark-to-market election with respect to our ordinary shares or ADSs, gains from an actual sale or other disposition of such ordinary shares or ADSs in a year in which we are a PFIC would be treated as ordinary income, and any losses incurred on such sale or other disposition would be treated as ordinary losses to the extent of any net mark-to-market gains previously included in income.

If we are classified as a PFIC for any taxable year in which a U.S. Holder owns ordinary shares or ADSs but before a mark-to-market election is made, the adverse PFIC rules described above will apply to any mark-to-market gain recognized in the year the election is made. Otherwise, a mark-to-market election will be effective for the taxable year for which the election is made and all subsequent taxable years unless the ordinary shares or ADSs are no longer regularly traded on a qualified exchange or the IRS consents to the revocation of the election. Our ADSs are listed on the Nasdaq Global Select Market, which is a qualified exchange or other market for purposes of the mark-to-market election. Consequently, if the ADSs continue to be so listed, and are "regularly traded" for purposes of these rules (for which no assurance can be given) we expect that the mark-to-market election would be available to a U.S. Holder with respect to our ADSs.

A mark-to-market election is not permitted for the shares of any of our subsidiaries that are also classified as PFICs. Prospective investors should consult their own tax advisors regarding the availability of, and the procedure for, and the effect of making, a mark-to-market election, and whether making the election would be advisable, including in light of their particular circumstances.

In some cases, a shareholder of a PFIC can avoid the interest charge and the other adverse PFIC tax consequences described above by obtaining certain information from the PFIC and by making a QEF election to be taxed currently on its share of the PFIC's undistributed income. We do not, however, expect to provide the information regarding our income that would be necessary in order for a U.S. Holder to make a QEF election if we were classified as a PFIC.

If we are classified as a PFIC in any year with respect to a U.S. Holder, such U.S. Holder will be required to file an annual information return on IRS Form 8621 regarding distributions received on, and any gain realized on the disposition of, our ordinary shares and ADSs, and certain U.S. Holders will be required to file an annual information return (also on IRS Form 8621) relating to their ownership interest.

NO ASSURANCE CAN BE GIVEN THAT WE ARE NOT CURRENTLY A PFIC OR THAT WE WILL NOT BECOME A PFIC IN THE FUTURE. U.S. HOLDERS SHOULD CONSULT THEIR OWN TAX ADVISORS WITH RESPECT TO THE OPERATION OF THE PFIC RULES AND RELATED REPORTING REQUIREMENTS IN LIGHT OF THEIR PARTICULAR CIRCUMSTANCES, INCLUDING THE ADVISABILITY AND EFFECTS OF MAKING ANY ELECTION THAT MAY BE AVAILABLE.

Backup withholding and information reporting requirements may apply to distributions on, and proceeds from the sale or disposition of, ordinary shares and ADSs that are held by U.S. Holders. The payor will be required to withhold tax on such payments made within the United States, or by a U.S. payor or a U.S. intermediary (and certain subsidiaries thereof) to a U.S. Holder, other than an exempt recipient, if the U.S. Holder fails to furnish its correct taxpayer identification number or otherwise fails to comply with, or establish an exemption from, the backup withholding requirements. Backup withholding is not an additional tax. Amounts withheld as backup withholding may be credited against a U.S. Holder's U.S. federal income tax liability (if any) or refunded provided the required information is furnished to the IRS in a timely manner.

Certain U.S. Holders of specified foreign financial assets with an aggregate value in excess of the applicable dollar threshold are required to report information relating to their holding of ordinary shares or ADSs, subject to certain exceptions (including an exception for shares held in accounts maintained by certain financial institutions) with their tax returns for each year in which they hold such interests. U.S. Holders should consult their own tax advisors regarding the information reporting obligations that may arise from their acquisition, ownership or disposition of our ordinary shares or ADSs.

THE ABOVE DISCUSSION DOES NOT COVER ALL TAX MATTERS THAT MAY BE OF IMPORTANCE TO A PARTICULAR INVESTOR. PROSPECTIVE INVESTORS ARE STRONGLY URGED TO CONSULT THEIR OWN TAX ADVISORS ABOUT THE TAX CONSEQUENCES OF AN INVESTMENT IN OUR ORDINARY SHARES OR ADSs.

We are subject to the informational requirements of the Exchange Act and are required to file reports and other information with the SEC. Shareholders may access our reports and other information filed with the SEC by viewing them on the SEC's website, at www.sec.gov. We also make available on our website's investor relations page, free of charge, our annual report and the text of our reports on Form 6-K, including any amendments to these reports, as well as certain other SEC filings, as soon as reasonably practicable after they are electronically filed with or furnished to the SEC. The address for our investor

relations page is www.chi-med.com/investors. The information contained on our website is not incorporated by reference in this annual report.

We are a "foreign private issuer" as such term is defined in Rule 405 under the Securities Act, and are not subject to the same requirements that are imposed upon U.S. domestic issuers by the SEC. Under the Exchange Act, we are subject to reporting obligations that, in certain respects, are less detailed and less frequent than those of U.S. domestic reporting companies. As a result, we do not file the same reports that a U.S. domestic issuer would file with the SEC, although we are required to file or furnish to the SEC the continuous disclosure documents that we are required to file on the AIM market of the London Stock Exchange.

We will furnish Deutsche Bank Trust Company Americas, the depositary of our ADSs, with our annual reports, which will include a review of operation and annual audited consolidated financial statements prepared in conformity with U.S. GAAP, and all notices of shareholders' meetings and other reports and communications that are made generally available to our shareholders. The depositary will make such notices, reports and communications available to holders of ADSs and, upon our requests, will mail to all record holders of ADSs the information contained in any notice of a shareholders' meeting received by the depositary from us.

Please see Item 5.F. "Operating and Financial Review and Prospects—Quantitative and Qualitative Disclosures About Market Risk."

ADS holders will be required to pay the following service fees to Deutsche Bank Trust Company America, the depositary of our ADS program, and certain taxes and governmental charges (in addition to

any applicable fees, expenses, taxes and other governmental charges payable on the deposited securities represented by ADSs):

Service		Fees

• To any person to which ADSs are issued or to any person to which a distribution is made in respect of ADS distributions pursuant to stock dividends or other free distributions of stock, bonus distributions, stock splits or other distributions (except where converted to cash)		Up to $0.05 per ADS issued
• Cancellation or withdrawal of ADSs, including the case of termination of the deposit agreement		Up to $0.05 per ADS cancelled
• Distribution of cash dividends		Up to $0.05 per ADS held
• Distribution of cash entitlements (other than cash dividends) and/or cash proceeds from the sale of rights, securities and other entitlements		Up to $0.05 per ADS held
• Distribution of ADSs pursuant to exercise of rights		Up to $0.05 per ADS held
• Depositary services		Up to $0.05 per ADS held on the applicable record date(s) established by the depositary bank (an annual fee)

ADS holders will also be responsible to pay certain fees and expenses incurred by the depositary bank and certain taxes and governmental charges (in addition to any applicable fees, expenses, taxes and other governmental charges payable on the deposited securities represented by any of your ADSs) such as:

The depositary fees payable upon the issuance and cancellation of ADSs are typically paid to the depositary bank by the brokers (on behalf of their clients) receiving the newly issued ADSs from the depositary bank and by the brokers (on behalf of their clients) delivering the ADSs to the depositary bank for cancellation. The brokers in turn charge these fees to their clients. Depositary fees payable in connection with distributions of cash or securities to ADS holders and the depositary services fee are charged by the depositary bank to the holders of record of ADSs as of the applicable ADS record date.

The depositary fees payable for cash distributions are generally deducted from the cash being distributed or by selling a portion of distributable property to pay the fees. In the case of distributions other than cash (i.e., share dividends, rights), the depositary bank charges the applicable fee to the ADS record date holders concurrent with the distribution. In the case of ADSs registered in the name of the investor (whether certificated or uncertificated in direct registration), the depositary bank sends invoices to the applicable record date ADS holders. In the case of ADSs held in brokerage and custodian accounts (via DTC), the depositary bank generally collects its fees through the systems provided by DTC (whose nominee is the registered holder of the ADSs held in DTC) from the brokers and custodians holding ADSs in their DTC accounts. The brokers and custodians who hold their clients' ADSs in DTC accounts in turn charge their clients' accounts the amount of the fees paid to the depositary banks.

In the event of refusal to pay the depositary fees, the depositary bank may, under the terms of the deposit agreement, refuse the requested service until payment is received or may set off the amount of the depositary fees from any distribution to be made to the ADS holder.

The depositary has agreed to pay certain amounts to us in exchange for its appointment as depositary. We may use these funds towards our expenses relating to the establishment and maintenance of the ADR program, including investor relations expenses, or otherwise as we see fit. In 2018, we did not collect any reimbursements from the depositary for expenses related to the administration and maintenance of the facility.

ITEM 14. MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS

A-D. Material Modifications to the Rights of Security Holders; Assets Securing Securities; Trustees; Paying Agents

As required by Rule 13a-15 under the Exchange Act, management, including our chief executive officer and our chief financial officer, has evaluated the effectiveness of our disclosure controls and procedures as of the end of the period covered by this report. Disclosure controls and procedures refer to controls and other procedures designed to ensure that information required to be disclosed in the reports we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the SEC. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by us in our reports that we file or submit under the Exchange Act is accumulated and communicated to management, including our principal executive and principal financial officers, or persons performing similar functions, as appropriate to allow timely decisions regarding our required disclosure. Based on such evaluation, our management has concluded that, as of December 31, 2018, our disclosure controls and procedures were effective.

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as defined in Rule 13a-15(f) and 15d-15(f) promulgated under the Securities Exchange Act of 1934. Internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of consolidated financial statements in accordance with U.S. GAAP and includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of a company's assets; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of consolidated financial statements in accordance with generally accepted accounting principles, and that a company's receipts and expenditures are being made only in accordance with authorizations of a company's management and directors; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of a company's assets that could have a material effect on the consolidated financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Projections of any evaluation of effectiveness of our internal control over financial reporting to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Our management, with the participation of our chief executive officer and chief financial officer, has assessed the effectiveness of our internal control over financial reporting as of December 31, 2018. In making this assessment, our management used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal Control-Integrated Framework (2013 Framework). Based on this assessment, management concluded that our internal control over financial reporting was effective as of December 31, 2018.

Our independent registered public accounting firm, PricewaterhouseCoopers, has audited the effectiveness of our internal control over financial reporting as of December 31, 2018, as stated in its report, which appears on page F-2 of this annual report.

There were no changes in our internal controls over financial reporting during the fiscal year ended December 31, 2018 that have materially and adversely affected, or are reasonably likely to materially and adversely affect, our internal control over financial reporting.

Our board of directors has adopted a code of ethics applicable to all of our employees, officers and directors, including our principal executive officer, principal financial officer, principal accounting officer or controller, and persons performing similar functions. This code is intended to qualify as a "code of ethics" within the meaning of the applicable rules of the SEC. Our code of ethics is available on our website at http://www.chi-med.com/leadership-governance/terms-of-reference-policies/code-of-ethics/. Information contained on, or that can be accessed through, our website is not incorporated by reference into this annual report. See Item 6.C. "Board Practices—Code of Ethics" for more information.

The following table summarizes the fees charged by PricewaterhouseCoopers for certain services rendered to our company, including some of our subsidiaries and joint ventures, during 2017 and 2018.

Our audit committee reviews and pre-approves the scope and the cost of audit services related to us and permissible non-audit services performed by the independent auditors, other than those for de minimis services which are approved by the audit committee prior to the completion of the audit. All of the services related to our company provided by PricewaterhouseCoopers listed above have been approved by the audit committee.

ITEM 16E. PURCHASES OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASERS

As permitted by Nasdaq, in lieu of the Nasdaq corporate governance rules, but subject to certain exceptions, we may follow the practices of our home country which for the purpose of such rules is the Cayman Islands. Certain corporate governance practices in the Cayman Islands may differ significantly from corporate governance listing standards as, except for general fiduciary duties and duties of care, Cayman Islands law has no corporate governance regime which prescribes specific corporate governance standards. For example, we follow Cayman Islands corporate governance practices in lieu of the corporate governance requirements of the Nasdaq Global Select Market in respect of the following:

Cayman Islands law does not impose a requirement that our board of directors consist of a majority of independent directors. Nor does Cayman Islands law impose specific requirements on the establishment of a remuneration committee or nominating committee or nominating process. We voluntarily comply with certain principles of the U.K. Corporate Governance Code. See Item 6.C. "Board Practice—U.K. Corporate Governance Code" for more details.

Our consolidated financial statements and the consolidated financial statements of our three non-consolidated joint ventures, Shanghai Hutchison Pharmaceuticals, Hutchison Baiyunshan and Nutrition Science Partners, are included at the end of this annual report.

The consolidated financial statements of Nutrition Science Partners relating to the year ended December 31, 2018 included herein are not the Hong Kong statutory annual financial statements of Nutrition Science Partners for that year. As Nutrition Science Partners is a private company, it is not required to deliver its financial statements with its annual returns to the Hong Kong Registrar of Companies and has not done so. Nutrition Science Partners' auditor has separately reported on those financial statements. The auditor's report was unqualified; did not include a reference to any matters to which the auditor drew attention by way of emphasis without qualifying its report; and did not contain a statement under sections 406(2), 407(2) or (3) of the Hong Kong Companies Ordinance Cap. 622.

The registrant hereby certifies that it meets all of the requirements for filing on annual report on Form 20-F and that it has duly caused and authorized the undersigned to sign this annual report on its behalf.

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the accompanying consolidated balance sheets of Hutchison China MediTech Limited and its subsidiaries (the "Company") as of December 31, 2018 and 2017, and the related consolidated statements of operations, of comprehensive (loss)/income, of changes in shareholders' equity and of cash flows for each of the three years in the period ended December 31, 2018, including the related notes (collectively referred to as the "consolidated financial statements"). We also have audited the Company's internal control over financial reporting as of December 31, 2018, based on criteria established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2018 and 2017, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2018 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2018, based on criteria established in Internal Control—Integrated Framework (2013) issued by the COSO.

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management's Annual Report on Internal Control over Financial Reporting appearing under Item 15 of Form 20-F. Our responsibility is to express opinions on the Company's consolidated financial statements and on the Company's internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) ("PCAOB") and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.

Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

We have served as the Company's auditor since 2005, which includes periods before the Company became subject to SEC reporting requirements.

Hutchison China MediTech Limited
Consolidated Balance Sheets
(in US$'000, except share data)

		December 31,

	Note	2018		2017
Assets
Current assets
Cash and cash equivalents	5	86,036		85,265
Short-term investments	6	214,915		273,031
Accounts receivable—third parties	7	40,176		38,410
Accounts receivable—related parties	20(ii)	2,782		3,860
Other receivables, prepayments and deposits		13,434		11,296
Amounts due from related parties	20(ii)	889		8,544
Inventories	8	12,309		11,789

Total current assets		370,541		432,195
Property, plant and equipment	9	16,616		14,220
Leasehold land		1,174		1,261
Goodwill		3,186		3,308
Other intangible asset		347		430
Deferred tax assets	21(ii)	580		633
Long-term prepayment		1,356		1,648
Investments in equity investees	10	138,318		144,237

Total assets		532,118		597,932



Liabilities and shareholders' equity
Current liabilities
Accounts payable	11	25,625		24,365
Other payables, accruals and advance receipts	12	56,327		40,953
Income tax payable	21(iii)	555		979
Deferred revenue	17	2,540		1,295
Amounts due to related parties	20(ii)	432		7,021
Short-term bank borrowings	13	—		29,987

Total current liabilities		85,479		104,600
Deferred tax liabilities	21(ii)	4,836		4,452
Long-term bank borrowings	13	26,739		—
Deferred revenue	17	408		809
Other deferred income		1,542		1,988
Other non-current liabilities		859		1,117

Total liabilities		119,863		112,966
Commitments and contingencies	14

Company's shareholders' equity
Ordinary shares; $1.00 par value; 75,000,000 shares authorized; 66,657,745 and 66,447,037 shares issued at December 31, 2018 and 2017 respectively	15	66,658		66,447
Additional paid-in capital		505,585		496,960
Accumulated losses		(183,004	)	(107,104	)
Accumulated other comprehensive (loss)/income		(243	)	5,430

Total Company's shareholders' equity		388,996		461,733
Non-controlling interests		23,259		23,233

Total shareholders' equity		412,255		484,966

Total liabilities and shareholders' equity		532,118		597,932

The accompanying notes are an integral part of these consolidated financial statements.

Hutchison China MediTech Limited
Consolidated Statements of Operations
(in US$'000, except share and per share data)

		Year Ended December 31,

	Note	2018		2017		2016
Revenues
Goods—third parties		156,234		194,860		171,058
—related parties	20(i)	8,306		8,486		9,794
Services—commercialization—third parties		11,660		1,860		—
—collaboration research and development—third parties		17,681		16,858		16,513
—research and development—third parties		—		—		355
—research and development—related parties	20(i)	7,832		9,682		8,429
Other collaboration revenue—royalties—third parties		261		—		—
—licensing—third parties		12,135		9,457		9,931

Total revenues	17	214,109		241,203		216,080

Operating expenses
Costs of goods—third parties		(129,346	)	(168,331	)	(149,132	)
Costs of goods—related parties		(5,978	)	(6,056	)	(7,196	)
Costs of services—commercialization—third parties		(8,620	)	(1,433	)	—
Research and development expenses	18	(114,161	)	(75,523	)	(66,871	)
Selling expenses		(17,736	)	(19,322	)	(17,998	)
Administrative expenses		(30,909	)	(23,955	)	(21,580	)

Total operating expenses		(306,750	)	(294,620	)	(262,777	)

Loss from operations		(92,641	)	(53,417	)	(46,697	)
Other income/(expense)
Interest income	23	5,978		1,220		502
Other income		1,798		808		609
Interest expense	23	(1,009	)	(1,455	)	(1,631	)
Other expense		(781	)	(692	)	(139	)

Total other income/(expense)		5,986		(119	)	(659	)

Loss before income taxes and equity in earnings of equity investees		(86,655	)	(53,536	)	(47,356	)
Income tax expense	21(i)	(3,964	)	(3,080	)	(4,331	)
Equity in earnings of equity investees, net of tax	10	19,333		33,653		66,244

Net (loss)/income		(71,286	)	(22,963	)	14,557
Less: Net income attributable to non-controlling interests		(3,519	)	(3,774	)	(2,859	)

Net (loss)/income attributable to the Company		(74,805	)	(26,737	)	11,698



(Losses)/earnings per share attributable to the Company—basic (US$ per share)	22(i)	(1.13	)	(0.43	)	0.20
(Losses)/earnings per share attributable to the Company—diluted (US$ per share)	22(ii)	(1.13	)	(0.43	)	0.20
Number of shares used in per share calculation—basic	22(i)	66,426,382		61,717,171		59,715,173
Number of shares used in per share calculation—diluted	22(ii)	66,426,382		61,717,171		59,971,050

The accompanying notes are an integral part of these consolidated financial statements.

Hutchison China MediTech Limited
Consolidated Statements of Comprehensive (Loss)/Income
(in US$'000)

The accompanying notes are an integral part of these consolidated financial statements.

Hutchison China MediTech Limited
Consolidated Statements of Changes in Shareholders' Equity
(in US$'000, except share data in '000)

	Ordinary Shares Number	Ordinary Shares Value	Additional Paid-in Capital		Accumulated Losses		Accumulated Other Comprehensive Income/(Loss)		Total Company's Shareholders' Equity		Non- controlling Interests		Total Equity

As at December 31, 2015	56,533	56,533	113,848		(92,040	)	5,015		83,356		18,921		102,277
Net income	—	—	—		11,698		—		11,698		2,859		14,557
Issuance in relation to public offering	4,080	4,080	106,080		—		—		110,160		—		110,160
Issuance costs	—	—	(14,227	)	—		—		(14,227	)	—		(14,227	)
Issuances in relation to share option exercises	93	93	333		—		—		426		—		426
Share-based compensation
Share options	—	—	1,373		—		—		1,373		4		1,377
Long-term incentive plan ("LTIP")	—	—	1,378		—		—		1,378		2		1,380

	—	—	2,751		—		—		2,751		6		2,757
LTIP—treasury shares acquired and held by Trustee	—	—	(604	)	—		—		(604	)	—		(604	)
Dividend declared to a non-controlling shareholder of a subsidiary	—	—	—		—		—		—		(564	)	(564	)
Transfer between reserves	—	—	15		(15	)	—		—		—		—
Foreign currency translation adjustments	—	—	—		—		(9,290	)	(9,290	)	(1,432	)	(10,722	)

As at December 31, 2016	60,706	60,706	208,196		(80,357	)	(4,275	)	184,270		19,790		204,060



Net (loss)/income	—	—	—		(26,737	)	—		(26,737	)	3,774		(22,963	)
Issuance in relation to public offering	5,685	5,685	295,615		—		—		301,300		—		301,300
Issuance costs	—	—	(8,610	)	—		—		(8,610	)	—		(8,610	)
Issuances in relation to share option exercises	56	56	324		—		—		380		—		380
Share-based compensation
Share options	—	—	1,255		—		—		1,255		3		1,258
LTIP	—	—	1,537		—		—		1,537		1		1,538

	—	—	2,792		—		—		2,792		4		2,796
LTIP—treasury shares acquired and held by Trustee	—	—	(1,367	)	—		—		(1,367	)	—		(1,367	)
Dividends declared to non-controlling shareholders of subsidiaries	—	—	—		—		—		—		(1,594	)	(1,594	)
Transfer between reserves	—	—	10		(10	)	—		—		—		—
Foreign currency translation adjustments	—	—	—		—		9,705		9,705		1,259		10,964

As at December 31, 2017	66,447	66,447	496,960		(107,104	)	5,430		461,733		23,233		484,966



Impact of change in accounting policy (Note 3)	—	—	—		(1,080	)	—		(1,080	)	(3	)	(1,083	)

As at January 1, 2018	66,447	66,447	496,960		(108,184	)	5,430		460,653		23,230		483,883
Net (loss)/income	—	—	—		(74,805	)	—		(74,805	)	3,519		(71,286	)
Issuances in relation to share option exercises	211	211	2,952		—		—		3,163		—		3,163
Share-based compensation
Share options	—	—	7,885		—		—		7,885		18		7,903
LTIP	—	—	3,224		—		—		3,224		9		3,233

	—	—	11,109		—		—		11,109		27		11,136
LTIP—treasury shares acquired and held by Trustee	—	—	(5,451	)	—		—		(5,451	)	—		(5,451	)
Dividend declared to a non-controlling shareholder of a subsidiary	—	—	—		—		—		—		(2,564	)	(2,564	)
Transfer between reserves	—	—	15		(15	)	—		—		—		—
Foreign currency translation adjustments	—	—	—		—		(5,673	)	(5,673	)	(953	)	(6,626	)

As at December 31, 2018	66,658	66,658	505,585		(183,004	)	(243	)	388,996		23,259		412,255

The accompanying notes are an integral part of these consolidated financial statements.

Hutchison China MediTech Limited
Consolidated Statements of Cash Flows
(in US$'000)

		Year Ended December 31,

	Note	2018		2017		2016
Net cash used in operating activities	24	(32,847	)	(8,943	)	(9,569	)

Investing activities
Purchases of property, plant and equipment		(6,364	)	(5,019	)	(4,327	)
Deposits in short-term investments		(903,551	)	(325,032	)	(80,857	)
Proceeds from short-term investments		961,667		76,271		56,587
Investment in an equity investee		(8,000	)	(7,000	)	(5,000	)

Net cash generated from/(used in) investing activities		43,752		(260,780	)	(33,597	)

Financing activities
Proceeds from issuance of ordinary shares		3,868		301,680		110,586
Purchases of treasury shares		(5,451	)	(1,367	)	(604	)
Dividends paid to non-controlling shareholders of subsidiaries	20(iii)	(1,282	)	(1,594	)	(564	)
Repayment of loan to a non-controlling shareholder of a subsidiary		(1,550	)	—		(1,000	)
Proceeds from bank borrowings		26,923		32,540		25,128
Repayment of bank borrowings		(30,000	)	(49,487	)	(28,205	)
Payment of issuance and other costs		(739	)	(8,576	)	(12,906	)

Net cash (used in)/generated from financing activities		(8,231	)	273,196		92,435

Net increase in cash and cash equivalents		2,674		3,473		49,269
Effect of exchange rate changes on cash and cash equivalents		(1,903	)	2,361		(1,779	)

		771		5,834		47,490
Cash and cash equivalents
Cash and cash equivalents at beginning of year		85,265		79,431		31,941

Cash and cash equivalents at end of year		86,036		85,265		79,431



Supplemental disclosure for cash flow information
Cash paid for interest		979		763		1,570
Cash paid for tax, net of refunds	21(iii)	3,752		3,836		2,664
Supplemental disclosure for non-cash activities
Accruals made for purchases of property, plant and equipment		138		1,054		—
Vesting of treasury shares for LTIP	16(iii)	731		1,800		—
Accrued issuance costs for public offering		—		34		—
Capitalization of amounts due from related parties to investments in equity investees		—		—		7,000

The accompanying notes are an integral part of these consolidated financial statements.

Hutchison China MediTech Limited (the "Company") and its subsidiaries (together the "Group") are principally engaged in researching, developing, manufacturing and selling pharmaceuticals and healthcare products. The Group and its equity investees have research and development facilities and manufacturing plants in the People's Republic of China (the "PRC") and sell their products mainly in the PRC and Hong Kong.

The Company considers Hutchison Healthcare Holdings Limited as its immediate holding company and CK Hutchison Holdings Limited ("CK Hutchison") as its ultimate holding company.

The Company was incorporated in the Cayman Islands on December 18, 2000 as an exempted company with limited liability under the Companies Law (2000 Revision), Chapter 22 of the Cayman Islands. The address of its registered office is P.O. Box 309, Ugland House, Grand Cayman, KY1-1104, Cayman Islands.

The Company's ordinary shares are listed on the AIM market of the London Stock Exchange, and its American depositary shares ("ADS"), each representing one-half of one ordinary share, are traded on the Nasdaq Global Select Market.

As at December 31, 2018, the Group had accumulated losses of US$183,004,000, primarily due to its spending in drug research and development ("Drug R&D") activities. The Group regularly monitors current and expected liquidity requirements to ensure that it maintains sufficient cash balances and adequate credit facilities to meet its liquidity requirements in the short and long term. As at December 31, 2018, the Group had cash and cash equivalents of US$86,036,000, short-term investments of US$214,915,000 and unutilized bank borrowing facilities of US$119,359,000. Short-term investments comprised of bank deposits maturing over three months. The Group's operating plan includes the continued receipt of dividends from certain of its equity investees. Dividends received from equity investees for the years ended December 31, 2018, 2017 and 2016 were US$35,218,000, US$55,586,000 and US$30,528,000 respectively.

Based on the Group's operating plan, the existing cash and cash equivalents, short-term investments and unutilized bank borrowing facilities are considered to be sufficient to meet the cash requirements to fund planned operations and other commitments for at least the next twelve months (the look-forward period used).

		Equity interest attributable to the Group

		As at December 31,
	Place of establishment and operations	As at December 31,
Name	Place of establishment and operations	2018	2017	Principal activities
Subsidiaries
Hutchison MediPharma Limited ("HMPL")	PRC	99.75%	99.75%	Research, development, manufacture and commercialization of pharmaceutical products
Hutchison Whampoa Sinopharm Pharmaceuticals (Shanghai) Company Limited	PRC	51%	51%	Provision of sales, distribution and marketing services to pharmaceutical manufacturers
Hutchison Hain Organic (Hong Kong) Limited ("HHOL") (note (a))	Hong Kong	50%	50%	Wholesale and trading of healthcare and consumer products
Hutchison Hain Organic (Guangzhou) Limited ("HHOGZL") (note (a))	PRC	50%	50%	Wholesale and trading of healthcare and consumer products
Hutchison Healthcare Limited	PRC	100%	100%	Manufacture and distribution of healthcare products
Hutchison Consumer Products Limited	Hong Kong	100%	100%	Wholesale and trading of healthcare and consumer products
Equity investees
Shanghai Hutchison Pharmaceuticals Limited ("SHPL")	PRC	50%	50%	Manufacture and distribution of prescription drug products
Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine Company Limited ("HBYS") (note (b))	PRC	40%	40%	Manufacture and distribution of over-the-counter drug products
Nutrition Science Partners Limited ("NSPL") (note (c))	Hong Kong	49.88%	49.88%	Research and development of pharmaceutical products

The accompanying consolidated financial statements reflect the accounts of the Company and all of its subsidiaries in which a controlling interest is maintained. Investments in equity investees over which the Group has significant influence are accounted for using the equity method. All inter-company balances and

transactions have been eliminated in consolidation. The consolidated financial statements have been prepared in conformity with generally accepted accounting principles in the United States of America ("U.S. GAAP").

The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Estimates are used when accounting for amounts recorded in connection with acquisitions, including initial fair value determinations of assets and liabilities and other intangible assets as well as subsequent fair value measurements. Additionally, estimates are used in determining items such as useful lives of property, plant and equipment, write-down of inventories, allowance for doubtful accounts, share-based compensation, impairments of long-lived assets, impairment of other intangible asset and goodwill, taxes on income, tax valuation allowances, revenues and cost accruals from research and development projects. Actual results could differ from those estimates.

The Company's presentation currency is the U.S. dollar ("US$"). The financial statements of the Company and its subsidiaries with a functional currency other than the US$ have been translated into the Company's presentation currency. All assets and liabilities of the subsidiaries are translated using year-end exchange rates and revenues and expenses are translated at average exchange rates for the year. Translation adjustments are reflected in accumulated other comprehensive (loss)/income in shareholders' equity.

Net foreign currency exchange losses of US$233,000, US$316,000 and US$109,000 were recorded in other expense in the consolidated statements of operations for the years ended December 31, 2018, 2017 and 2016 respectively.

The Group considers all highly liquid investments purchased with original maturities of three months or less to be cash equivalents. Cash and cash equivalents consist primarily of cash on hand and bank deposits and are stated at cost, which approximates fair value.

Short-term investments include deposits placed with banks with original maturities of more than three months but less than one year.

Financial instruments that potentially expose the Group to concentrations of credit risk consist primarily of cash and cash equivalents, short-term investments, accounts receivable, other receivables and amounts due from related parties.

The Group places substantially all of its cash and cash equivalents and short-term investments in major financial institutions, which management believes are of high credit quality. The Group has a practice to limit the amount of credit exposure to any particular financial institution.

The Group has no significant concentration of credit risk. The Group has policies in place to ensure that sales are made to customers with an appropriate credit history and the Group performs periodic credit evaluations of its customers. Normally the Group does not require collateral from trade debtors.

The Group's operating transactions and its assets and liabilities in the PRC are mainly denominated in Renminbi ("RMB"), which is not freely convertible into foreign currencies. The Group's cash and cash equivalents denominated in RMB are subject to government controls. The value of the RMB is subject to fluctuations from central government policy changes and international economic and political developments that affect the supply and demand of RMB in the foreign exchange market. In the PRC, certain foreign exchange transactions are required by law to be transacted only by authorized financial institutions at exchange rates set by the People's Bank of China (the "PBOC"). Remittances in currencies other than RMB by the Group in the PRC must be processed through the PBOC or other PRC foreign exchange regulatory bodies which require certain supporting documentation in order to complete the remittance.

The fair value of financial instruments that are measured at fair value is determined according to a fair value hierarchy that prioritizes the inputs and assumptions used, and the valuation techniques used. The three levels of the fair value hierarchy are described as follows:

The assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of assets and liabilities and their placement within the fair value hierarchy levels.

The fair value of assets and liabilities is established using the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, and a fair value hierarchy is established based on the inputs used to measure fair value.

Accounts receivable are stated at the amount management expects to collect from customers based on their outstanding invoices. Management reviews accounts receivable regularly to determine if any receivable will potentially be uncollectible. Estimates are used to determine the amount of allowance for doubtful accounts necessary to reduce accounts receivable to its estimated net realizable value. The amount of the allowance for doubtful accounts is recognized in the consolidated statements of operations.

Inventories are stated at the lower of cost or net realizable value. Cost is determined using the weighted average cost method. The cost of finished goods comprises raw materials, direct labor, other direct costs and related production overheads (based on normal operating capacity). Net realizable value is the estimated selling price in the ordinary course of business, less applicable variable selling expenses. A provision for excess and obsolete inventory will be made based primarily on forecasts of product demand

and production requirements. The excess balance determined by this analysis becomes the basis for excess inventory charge and the written-down value of the inventory becomes its cost. Written-down inventory is not written up if market conditions improve.

Property, plant and equipment consist of buildings, leasehold improvements, plant and equipment, furniture and fixtures, other equipment and motor vehicles. Property, plant and equipment are stated at cost, net of accumulated depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of the depreciable assets.

Upon retirement or sale, the cost of assets disposed of and the related accumulated depreciation are removed from the accounts and any resulting gain or loss is reflected in the consolidated statements of operations in the year of disposition. Additions and improvements that extend the useful life of an asset are capitalized. Repairs and maintenance costs are expensed as incurred.

The Group evaluates the recoverability of long-lived assets in accordance with authoritative guidance on accounting for the impairment or disposal of long-lived assets. The Group evaluates long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying value of these assets may not be recoverable. If such indicators exist, the first step of the impairment test is performed to assess if the carrying value of the net assets exceeds the undiscounted cash flows of the assets. If yes, the second step of the impairment test is performed in order to determine if the carrying value of the net assets exceeds the fair value. If yes, impairment is recognized for the excess.

Leasehold land represents fees paid to acquire the right to use the land on which various plants and buildings are situated for a specified period of time from the date the respective right was granted and are stated at cost less accumulated amortization and impairment loss, if any. Amortization is computed using the straight-line basis over the lease period of 50 years.

Goodwill represents the excess of the purchase price plus fair value of non-controlling interests over the fair value of identifiable assets and liabilities acquired. Goodwill is not amortized, but is tested for impairment at the reporting unit level on at least an annual basis or when an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. When performing an evaluation of goodwill impairment, the Group has the option to first assess qualitative factors, such as significant events and changes to expectations and activities that may have occurred since the last impairment evaluation, to determine if it is more likely than not that goodwill might be impaired. If as a result of the qualitative assessment, that it is more likely than not that the fair value of the reporting unit is less than its carrying amount, the quantitative fair value test is performed to determine if the fair value of the reporting unit exceeds its carrying value.

Other intangible assets with finite useful lives are carried at cost less accumulated amortization and impairment loss, if any. Amortization is computed using the straight-line basis over the estimated useful lives of the assets.

Borrowings are recognized initially at fair value, net of debt issuance costs incurred. Borrowings are subsequently stated at amortized cost; any difference between the proceeds (net of debt issuance costs) and the redemption value is recognized in the consolidated statements of operations over the period of the borrowings using the effective interest method.

The Company's ordinary shares are stated at par value of US$1.00 per ordinary share. The difference between the consideration received, net of issuance cost, and the par value is recorded in additional paid-in capital.

The Group accounts for treasury shares under the cost method. The treasury shares were purchased for the purpose of the LTIP.

The Group recognizes share-based compensation expense on share options granted to employees and directors based on their estimated grant date fair value using the Polynomial model. This Polynomial pricing model uses various inputs to measure fair value, including estimated market value of the Company's underlying ordinary shares at the grant date, contractual terms, estimated volatility, risk-free interest rates and expected dividend yields. The Group recognizes share-based compensation expense in the consolidated statements of operations on a graded vesting basis over the requisite service period, and accounts for forfeitures as they occur.

Share options are classified as equity-settled awards. Share-based compensation expense, when recognized, is charged to the consolidated statements of operations with the corresponding entry to additional paid-in capital.

The Group recognizes the share-based compensation expense on the LTIP awards based on a fixed or determinable monetary amount on a straight-line basis for each annual tranche awarded over the requisite period. For LTIP awards with performance targets, prior to their determination date, the amount of LTIP awards that is expected to vest takes into consideration the achievement of the performance conditions and the extent to which the performance conditions are likely to be met. Performance conditions vary by awards, including targets for shareholder returns, free cash flows, revenues, net profit after taxes and/or the achievement of clinical and regulatory milestones.

These LTIP awards are classified as liability-settled awards before the determination date (i.e. the date when the achievement of any performance conditions are known), as they settle in a variable number of shares based on a determinable monetary amount, which is determined upon the actual achievement of performance targets. As the extent of achievement of the performance targets is uncertain prior to the determination date, a probability based on management's assessment of the achievement of the

performance targets has been assigned to calculate the amount to be recognized as an expense over the requisite period.

After the determination date or if the LTIP awards have no performance conditions, the LTIP awards are classified as equity-settled awards. If the performance target is achieved, the Group will pay the determined monetary amount to a trustee appointed by the Group (the "Trustee") to purchase ordinary shares of the Company or the equivalent ADS. Any cumulative compensation expense previously recognized as a liability will be transferred to additional paid-in capital, as an equity-settled award. If the performance target is not achieved, no ordinary shares or ADS of the Company will be purchased and the amount previously recorded in the liability will be reversed and included in the consolidated statements of operations.

The Group's subsidiaries in the PRC participate in a government-mandated multi-employer defined contribution plan pursuant to which certain retirement, medical and other welfare benefits are provided to employees. The relevant labor regulations require the Group's subsidiaries in the PRC to pay the local labor and social welfare authority's monthly contributions at a stated contribution rate based on the monthly basic compensation of qualified employees. The relevant local labor and social welfare authorities are responsible for meeting all retirement benefits obligations and the Group's subsidiaries in the PRC have no further commitments beyond their monthly contributions. The contributions to the plan are expensed as incurred.

The Group also makes payments to other defined contribution plans for the benefit of employees employed by subsidiaries outside the PRC. The defined contribution plans are generally funded by the relevant companies and by payments from employees.

The Group's contributions to defined contribution plans for the years ended December 31, 2018, 2017 and 2016 amounted to US$2,878,000, US$2,092,000 and US$2,286,000 respectively.

Summary of impact of applying Accounting Standard Codification ("ASC") 606, Revenue from Contracts with Customers (Topic 606) ("ASC 606")

The Group applied ASC 606 to all contracts at the date of initial application of January 1, 2018. As a result, the Group has changed its accounting policy for revenue recognition as detailed below. The Group applied ASC 606 using the modified retrospective method by recognizing the cumulative effect as an adjustment to opening accumulated losses at January 1, 2018. The comparative information prior to January 1, 2018 has not been adjusted and continues to be reported under ASC 605, Revenue Recognition (Topic 605) ("ASC 605").

The Group assessed its license and collaboration contracts under ASC 606. Refer to Note 17. As a result of this assessment, the Group recorded an aggregate US$1.1 million deferral of revenue as a cumulative adjustment to opening accumulated losses upon adoption.

For sales of goods and services, the Group applied a portfolio approach to aggregate contracts into portfolios whose performance obligations do not differ materially from each other. In its assessment of each portfolio, the Group assessed the contracts under the new five-step model under ASC 606 and determined there was no significant impact to the timing or amount of revenue recognition under the new guidance.

Under the Group's previous accounting policy, deferred revenue comprised deferred upfront payments from the Group's license and collaboration contracts. Under ASC 606, advance payments from customers preceding an entity's performance are considered contract liabilities; therefore, advance payments from customers from the Group's Commercial Platform have been reclassified from other payables, accruals and advance receipts to deferred revenue. Expected rebates for sales of goods remain in other payables, accruals and advance receipts.

The following tables summarize the impact of adopting ASC 606 on the Group's consolidated financial statements as at and for the year ended December 31, 2018, as compared to the amounts as if applying ASC 605:

	As reported ASC 606		Adjustments		As if applied ASC 605

	(in US$'000)
Consolidated Balance Sheet
Current assets	370,541		—		370,541
Non-current assets	161,577		—		161,577

Total assets	532,118		—		532,118



Liabilities and shareholders' equity
Current liabilities
Other payables, accruals and advance receipts	56,327		187		56,514
Deferred revenue	2,540		(605	)	1,935
Other current liabilities	26,612		—		26,612

Total current liabilities	85,479		(418	)	85,061
Deferred revenue	408		64		472
Other non-current liabilities	33,976		—		33,976

Total liabilities	119,863		(354	)	119,509
Company's shareholders' equity
Accumulated losses	(183,004	)	384		(182,620	)
Accumulated other comprehensive loss	(243	)	(31	)	(274	)
Other shareholders' equity	572,243		—		572,243

Total Company's shareholders' equity	388,996		353		389,349
Non-controlling interests	23,259		1		23,260

Total shareholders' equity	412,255		354		412,609

Total liabilities and shareholders' equity	532,118		—		532,118

There were no adjustments to net cash (used in)/generated from operating activities, investing activities or financing activities in the consolidated statement of cash flows.

Revenue is measured based on consideration specified in a contract with a customer, and excludes any sales incentives and amounts collected on behalf of third parties. Taxes assessed by a governmental authority that are both imposed on and concurrent with a specific revenue-producing transaction, that are collected by the Group from a customer, are also excluded from revenue. The Group recognizes revenue when it satisfies a performance obligation by transferring control over a good, service or license to a customer.

The following is a description of principal activities, separated by reportable segments, from which the Company generates its revenue:

The Innovation Platform reportable segment principally generates revenue from license and collaboration contracts as well as sales of drug products developed from the Innovation Platform. The license and collaboration contracts generally contain multiple performance obligations including (1) the license to the commercialization rights of a drug compound and (2) the research and development services for each specified treatment indication, which are accounted for separately if they are distinct, i.e. if a product or service is separately identifiable from other items in the arrangement and if a customer can benefit from it on its own or with other resources that are readily available to the customer.

The transaction price generally includes fixed and variable consideration in the form of upfront payment, research and development cost reimbursements, contingent milestone payments and sales-based royalties. Contingent milestone payments are not included in the transaction price until it becomes probable that a significant reversal of revenue will not occur, which is generally when the specified milestone is achieved. The allocation of the transaction price to each performance obligation is based on the relative standalone selling prices of each performance obligation determined at the inception of the contract. The Group estimates the standalone selling prices based on the income approach. Control of the license to the drug compounds transfers at the inception date of the collaboration agreements and consequently, amounts allocated to this performance obligation are generally recognized at a point in time. Conversely, research and development services for each specified indication are performed over time and amounts allocated to these performance obligations are generally recognized over time using cost inputs as a measure of progress. The Group has determined that research and development expenses provide an appropriate depiction of measure of progress for the research and development services. Changes to estimated cost inputs may result in a cumulative catch-up adjustment. Royalty revenues are recognized as future sales occur as they meet the requirements for the sales-usage based royalty exception.

Deferred revenue is recognized if allocated consideration is received in advance of the Group rendering research and development services. Accounts receivable is recognized based on the terms of the contract and when the Group has an unconditional right to bill the customer, which is generally when research and development services are rendered.

Revenue recognition from sales of drug products developed from the Innovation Platform follows revenue recognition from sales of goods in the Commercial Platform below.

The Commercial Platform reportable segment principally generates revenue from (1) sales of goods, which are the manufacture or purchase and distribution of pharmaceutical and consumer health products, and (2) sales of services, which are the provision of sales, distribution and marketing services to pharmaceutical manufacturers. The Group evaluates whether it is the principal or agent for these contracts, which include prescription drug products and consumer health products. Where the Group is the principal (i.e. recognizes sales of goods on a gross basis), it generally obtains control of the goods for distribution. Where the Group is the agent (i.e. recognizes provision of services on a net basis), it generally does not obtain control of the goods for distribution. Control is primarily evidenced by taking physical possession and inventory risk of the goods.

Revenue from sales of goods is recognized when the customer takes possession of the goods. This usually occurs upon completed delivery of the goods to the customer site. The amount of revenue recognized is adjusted for expected sales incentives as stipulated in the contract, which are generally issued to customers as direct discounts at the point-of-sale or indirectly in the form of rebates. Sales incentives are estimated using the expected value method. Additionally, sales are generally made with a limited right of return under certain conditions. Revenues are recorded net of provisions for sales discounts and returns.

Revenue from provision of services is recognized when the benefits of the services transfer to the customer over time, which is based on the proportionate value of services rendered as determined under the terms of the relevant contract. Additionally, when the amounts that can be invoiced correspond directly with the value to the customer for performance completed to date, the Group recognizes revenue from provision of services based on amounts that can be invoiced to the customer.

Deferred revenue is recognized if consideration is received in advance of transferring control of the goods or rendering of services. Accounts receivable is recognized if the Group has an unconditional right to bill the customer, which is generally when the customer takes possession of the goods or services are rendered. Payment terms differ by subsidiary and customer, but generally range from 45 to 180 days from the invoice date.

Revenue from sales of goods in the Commercial Platform segment are recognized when goods are delivered and title passes to the customer and there are no further obligations to the customer. Recognition of revenue also requires reasonable assurance of collection of sales proceeds and completion of all performance obligations. Sales discounts are issued to customers as direct discounts at the point-of-sale or indirectly in the form of rebates. Additionally, sales are generally made with a limited right of return under certain conditions. Revenues are recorded net of provisions for sales discounts and returns.

Revenue from sales of services in the Commercial Platform segment are recognized based on amounts that can be invoiced to the customer. The amount that can be invoiced corresponds directly with the value to the customer for performance completed to date.

The Group recognizes revenue for the performance of services when each of the following four criteria are met: (i) persuasive evidence of an arrangement exists; (ii) services are rendered; (iii) the sales price is fixed or determinable; and (iv) collectability is reasonably assured.

The Group follows ASC 605-25, Revenue Recognition—Multiple-Element Arrangements and ASC 808, Collaborative Arrangements, if applicable, to determine the recognition of revenue under the Group's license and collaborative research, development and commercialization agreements. The terms of these agreements generally contain multiple elements, or deliverables, which may include (i) licenses to the Group's intellectual property, (ii) materials and technology, (iii) clinical supply, and/or (iv) participation in joint research or joint steering committees. The payments the Group may receive under these arrangements typically include one or more of the following: non-refundable, upfront license fees; funding of research and/or development efforts; amounts due upon the achievement of specified milestones; and/or royalties on future product sales.

ASC 605-25 provides guidance relating to the separability of deliverables included in an arrangement into different units of accounting and the allocation of arrangement consideration to the units of accounting. The evaluation of multiple-element arrangements requires management to make judgments about (i) the identification of deliverables, (ii) whether such deliverables are separable from the other aspects of the contractual relationship, (iii) the estimated selling price of each deliverable, and (iv) the expected period of performance for each deliverable.

To determine the units of accounting under a multiple-element arrangement, management evaluates certain separation criteria, including whether the deliverables have stand-alone value, based on the relevant facts and circumstances for each arrangement. Management then estimates the selling price for each unit of accounting and allocates the arrangement consideration to each unit utilizing the relative selling price method. The Group determines the estimated selling price for deliverables within each agreement using vendor-specific objective evidence ("VSOE") of selling price, if available, or third party evidence of selling price if VSOE is not available, or the Group's best estimate of selling price, if neither VSOE nor third party evidence is available. Determining the best estimate of selling price for a deliverable requires significant judgment. The Group typically uses its best estimate of a selling price to estimate the selling price for licenses to development work, since it often does not have VSOE or third party evidence of selling price for these deliverables. In those circumstances where the Group applies its best estimate of selling price to determine the estimated selling price of a license to development work, it considers market conditions as well as entity-specific factors, including those factors contemplated in negotiating the agreements as well as internally developed estimates that include assumptions related to the market opportunity, estimated development costs, probability of success and the time needed to commercialize a product candidate pursuant to the license. In validating its best estimate of selling price, the Group evaluates whether changes in the key assumptions used to determine its best estimate of selling price will have a significant effect on the allocation of arrangement consideration between deliverables. The Group recognizes consideration allocated to an individual element when all other revenue recognition criteria are met for that element.

The allocated consideration for each unit of accounting is recognized over the related obligation period in accordance with the applicable revenue recognition criteria.

If there are deliverables in an arrangement that are not separable from other aspects of the contractual relationship, they are treated as a combined unit of accounting, with the allocated revenue for the combined unit recognized in a manner consistent with the revenue recognition applicable to the final deliverable in the combined unit. Payments received prior to satisfying the relevant revenue recognition criteria are recorded as unearned revenue in the accompanying balance sheets and recognized as revenue when the related revenue recognition criteria are met.

The Group typically receives non-refundable, upfront payments when licensing the Group's intellectual property, which often occurs in conjunction with a research and development agreement. If management believes that the license to the Group's intellectual property has stand-alone value, the Group generally recognizes revenue attributed to the license upon delivery provided that there are no future performance requirements for use of the license. When management believes that the license to the Group's intellectual property does not have stand-alone value, the Group will recognize revenue attributed to the license ratably over the contractual or estimated performance period. For payments payable on achievement of milestones that do not meet all of the conditions to be considered substantive, the Group recognizes a portion of the payment as revenue when the specific milestone is achieved, and the contingency is removed. Other contingent event-based payments for which payment is either contingent solely upon the passage of time or the result of a collaborator's performance are recognized when earned. The Group's collaboration and license agreements generally include contingent milestone payments related to specified pre-clinical research and development milestones, clinical development milestones, regulatory milestones and sales-based milestones. Pre-clinical research and development milestones are typically payable upon the selection of a compound candidate for the next stage of research and development. Clinical development milestones are typically payable when a product candidate initiates or advances in clinical trial phases or achieves defined clinical events such as proof-of-concept. Regulatory milestones are typically payable upon submission for marketing approval with regulatory authorities or upon receipt of actual marketing approvals for a compound, approvals for additional indications, or upon the first commercial sale. Sales-based milestones are typically payable when annual sales reach specified levels.

At the inception of each arrangement that includes milestone payments, the Group evaluates whether each milestone is substantive and at risk to both parties on the basis of the contingent nature of the milestone. This evaluation includes an assessment of whether (a) the consideration is commensurate with either (i) the entity's performance to achieve the milestone or (ii) the enhancement of the value of the delivered item(s) as a result of a specific outcome resulting from the entity's performance to achieve the milestone; (b) the consideration relates solely to past performance; and (c) the consideration is reasonable relative to all of the deliverables and payment terms within the arrangement. The Group evaluates factors such as the scientific, regulatory, commercial and other risks that must be overcome to achieve the respective milestone, the level of effort and investment required to achieve the respective milestone and whether the milestone consideration is reasonable relative to all deliverables and payment terms in the arrangement in making this assessment.

Research and development expenses consist primarily of salaries and benefits, share-based compensation, materials and supplies, contracted research, consulting arrangements and other expenses incurred to sustain the Group's research and development programs. Research and development costs are expensed as incurred.

Incentives from governments are recognized at their fair values. Government incentives that are received in advance are deferred and recognized in the consolidated statements of operations over the period necessary to match them with the costs that they are intended to compensate. Government incentives in relation to the achievement of stages of research and development projects are recognized in the consolidated statements of operations when amounts have been received and all attached conditions have been met. Non-refundable incentives received without any further obligations or conditions attached are recognized immediately in the consolidated statements of operations.

Leases in which a significant portion of the risks and rewards of ownership are retained by the lessor are classified as operating leases. Payments made under operating leases are charged to the consolidated statements of operations on a straight-line basis over the period of the leases.

Total operating lease rentals for factories and offices for the years ended December 31, 2018, 2017 and 2016 amounted to US$3,759,000, US$2,285,000 and US$1,838,000 respectively. Sub-lease rentals for the years ended December 31, 2018, 2017 and 2016 amounted to US$254,000, US$274,000 and US$228,000 respectively.

Interest generated from cash and cash equivalents and short-term investments is recorded over the period earned. It is measured based on the actual amount of interest the Group earns.

The Group accounts for income taxes under the liability method. Under the liability method, deferred income tax assets and liabilities are determined based on the differences between the financial reporting and income tax bases of assets and liabilities and are measured using the income tax rates that will be in effect when the differences are expected to reverse. A valuation allowance is recorded when it is more likely than not that some of the net deferred income tax asset will not be realized.

The Group accounts for an uncertain tax position in the consolidated financial statements only if it is more likely than not that the position is sustainable based on its technical merits and consideration of the relevant tax authority's widely understood administrative practices and precedents. If the recognition threshold is met, the Group records the largest amount of tax benefit that is greater than 50 percent likely to be realized upon ultimate settlement.

The Group recognizes interest and penalties for income taxes, if any, under income tax payable on its consolidated balance sheets and under other expenses in its consolidated statements of operations.

Comprehensive (loss)/income is defined as the change in equity of a business enterprise during a period from transactions, and other events and circumstances from non-owner sources, and currently consists of net (loss)/income and foreign currency translation gain/(loss) related to the Company's subsidiaries.

Basic (losses)/earnings per share is computed by dividing net (loss)/income attributable to the Company by the weighted average number of outstanding ordinary shares in issue during the year. Weighted average number of outstanding ordinary shares in issue excludes treasury shares.

Diluted (losses)/earnings per share is computed by dividing net (loss)/income attributable to the Company by the weighted average number of outstanding ordinary shares in issue and dilutive ordinary share equivalents outstanding during the period. Dilutive ordinary share equivalents include ordinary shares and treasury shares issuable upon the exercise or settlement of share-based awards issued by the Company using the treasury stock method. The computation of diluted (losses)/earnings per share does not assume conversion, exercise, or contingent issuance of securities that would have an anti-dilutive effect.

Operating segments are reported in a manner consistent with the internal reporting provided to the chief executive officer who is the Group's chief operating decision maker. The chief operating decision maker reviews the Group's internal reporting in order to assess performance and allocate resources and determined that the Group's reportable segments are as disclosed in Note 23.

The Group's subsidiaries and equity investees established in the PRC are required to make appropriations to certain non-distributable reserve funds.

In accordance with the laws applicable to the Foreign Investment Enterprises established in the PRC, the Group's subsidiaries and equity investees registered as wholly-owned foreign enterprise and sino-foreign joint ventures have to make appropriations from its after-tax profit (as determined under generally accepted accounting principles in the PRC ("PRC GAAP")) to the general reserve fund and statutory surplus fund respectively. The appropriation to the general reserve fund or the statutory surplus fund must be at least 10% of the after-tax profits calculated in accordance with PRC GAAP. Appropriation is not required if the general reserve fund or the statutory surplus fund has reached 50% of the registered capital of the company. Appropriation to other reserve funds including the enterprise expansion fund, staff bonus and welfare fund or the discretionary surplus fund is made at the company's discretion.

The use of the general reserve fund, enterprise expansion fund, statutory surplus fund and discretionary surplus fund are restricted to the offsetting of losses or increases the registered capital of the respective company. The staff bonus and welfare fund is a liability in nature and is restricted to fund payments of special bonus to employees and for the collective welfare of employees. All these reserves are not allowed to be transferred to the company in terms of cash dividends, loans or advances, nor can they be distributed except under liquidation.

In February 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-02, Leases (Topic 842) ("ASU 2016-02"). The core principle of ASU 2016-02 is that a lessee should recognize the assets and liabilities that arise from leases. A lessee should recognize on the balance sheet a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. The Group elected the short-term lease exception to not recognize right-of-use assets and lease liabilities for leases with a term of 12 months or less and will recognize lease expense for such leases generally on a straight-line basis over the lease term. ASU 2016-02 is effective for fiscal years and interim periods within those years beginning after December 15, 2018. The Group will adopt the new standard using the optional transition method (from ASU 2018-11, Leases Targeted Improvements) for fiscal years and interim periods within 2019. A gross up to the consolidated balance sheet will be recognized on the date of adoption of US$5.7 million and US$6.4 million in right-of-use assets and lease liabilities respectively, primarily related to the Group's various factories and offices under non-cancellable lease agreements that were accounted as operating leases under ASC 840, Leases (Topic 840) as at December 31, 2018. Additionally, the Group does not expect a significant impact to the consolidated statements of operations after the adoption of ASC 842 as the pattern of expense recognition should not change materially for such operating leases.

Other amendments that have been issued by the FASB or other standards-setting bodies that do not require adoption until a future date are not expected to have a material impact on the Group's consolidated financial statements upon adoption.

The following table presents the Group's financial instruments by level within the fair value hierarchy:

Accounts receivable, other receivables, amounts due from related parties, accounts payable, other payables and amounts due to related parties are carried at cost, which approximates fair value due to the short-term nature of these financial instruments, and are therefore excluded from the above table. Bank borrowings are floating rate instruments and carried at amortized cost, which approximates their fair values, and are therefore excluded from the above table.

Accounts receivable from contracts with customers, net of allowance for doubtful accounts, consisted of the following:

Substantially all accounts receivable are denominated in RMB, US$ and HK$ and are due within one year from the end of the reporting periods. The carrying values of accounts receivable approximate their fair values due to their short-term maturities.

Inventories, net of provision for excess and obsolete inventories, consisted of the following:

	Buildings		Leasehold improvements		Plant and equipment		Furniture and fixtures, other equipment and motor vehicles		Construction in progress		Total

	(in US$'000)
Cost
As at January 1, 2018	2,372		9,057		2,568		15,154		2,558		31,709
Additions	—		920		48		1,424		4,110		6,502
Disposals	—		(130	)	(2	)	(223	)	—		(355	)
Transfers	—		4,253		742		945		(5,940	)	—
Exchange differences	(100	)	(416	)	(138	)	(657	)	(103	)	(1,414	)

As at December 31, 2018	2,272		13,684		3,218		16,643		625		36,442

Accumulated depreciation
As at January 1, 2018	1,141		5,296		499		10,553		—		17,489
Depreciation	120		1,323		316		1,727		—		3,486
Disposals	—		(117	)	(2	)	(203	)	—		(322	)
Transfers	127		—		—		(127	)	—		—
Exchange differences	(58	)	(258	)	(31	)	(480	)	—		(827	)

As at December 31, 2018	1,330		6,244		782		11,470		—		19,826

Net book value
As at December 31, 2018	942		7,440		2,436		5,173		625		16,616

	Buildings	Leasehold improvements	Plant and equipment	Furniture and fixtures, other equipment and motor vehicles		Construction in progress		Total

	(in US$'000)
Cost
As at January 1, 2017	2,232	6,296	86	13,976		1,760		24,350
Additions	—	301	155	1,374		4,243		6,073
Disposals	—	—	—	(394	)	—		(394	)
Transfers	—	2,050	2,321	(722	)	(3,649	)	—
Exchange differences	140	410	6	920		204		1,680

As at December 31, 2017	2,372	9,057	2,568	15,154		2,558		31,709

Accumulated depreciation
As at January 1, 2017	971	4,249	71	9,105		—		14,396
Depreciation	105	763	169	1,441		—		2,478
Disposals	—	—	—	(337	)	—		(337	)
Transfers	—	—	255	(255	)	—		—
Exchange differences	65	284	4	599		—		952

As at December 31, 2017	1,141	5,296	499	10,553		—		17,489

Net book value
As at December 31, 2017	1,231	3,761	2,069	4,601		2,558		14,220

Particulars regarding the principal equity investees are disclosed in Note 2. All of the equity investees are private companies and there are no quoted market prices available for their shares.

Summarized financial information for the significant equity investees HBYS, SHPL and NSPL is as follows:

	Commercial Platform												Innovation Platform

	Consumer Health HBYS^{(note (a))}						Prescription Drugs SHPL^{(note (b))}						Drug R&D NSPL^{(note (c))}
	Year Ended December 31,						Year Ended December 31,						Year Ended December 31,
	2018		2017		2016		2018		2017		2016		2018		2017		2016
	(in US$'000)
Revenue	215,838		227,422		224,131		275,649		244,557		222,368		—		—		—



Gross profit	113,137		91,458		89,355		192,939		175,965		158,131		—		—		—



Impairment provision (note (d))	—		—		—		—		—		—		(30,000	)	—		—



Interest income	81		220		238		673		757		565		188		—		—



Finance cost	(152	)	(117	)	(123	)	—		—		—		—		—		—



Profit/(loss) before taxation	20,703		24,434		23,759		69,138		66,497		148,144		(38,198	)	(9,210	)	(8,482	)
Income tax expense (note (e))	(4,227	)	(3,629	)	(3,631	)	(9,371	)	(10,874	)	(27,645	)	—		—		—

Net income/(loss)	16,476		20,805		20,128		59,767		55,623		120,499		(38,198	)	(9,210	)	(8,482	)
Non-controlling interests	384		(29	)	248		—		—		—		—		—		—

Net income/(loss) attributable to the shareholders of equity investee	16,860		20,776		20,376		59,767		55,623		120,499		(38,198	)	(9,210	)	(8,482	)

For the years ended December 31, 2018, 2017 and 2016, other immaterial equity investees had net income of approximately US$236,000, US$117,000 and US$95,000 respectively.

Reconciliation of the summarized financial information presented to the carrying amount of investments in equity investees is as follows:

	Commercial Platform												Innovation Platform^(note)

	Consumer Health HBYS						Prescription Drugs SHPL						Drug R&D NSPL
	2018		2017		2016		2018		2017		2016		2018		2017		2016
	(in US$'000)
Opening net assets after non-controlling interests as at January 1	110,616		127,072		121,523		132,731		150,134		93,263		38,401		33,611		18,093
Net income/(loss) attributable to the shareholders of equity investee	16,860		20,776		20,376		59,767		55,623		120,499		(38,198	)	(9,210	)	(8,482	)
Dividends declared	—		(45,128	)	(6,000	)	(54,923	)	(81,299	)	(55,057	)	—		—		—
Other comprehensive (loss)/income	(5,492	)	7,896		(8,827	)	(5,797	)	8,273		(8,571	)	—		—		—
Investments	—		—		—		—		—		—		16,000		14,000		10,000
Capitalization of loans	—		—		—		—		—		—		—		—		14,000

Closing net assets after non-controlling interests as at December 31	121,984		110,616		127,072		131,778		132,731		150,134		16,203		38,401		33,611
Group's share of net assets	60,992		55,308		63,536		65,889		66,365		75,067		8,102		19,201		16,806
Goodwill	—		—		—		2,923		3,052		2,872		—		—		—

Carrying amount of investments as at December 31	60,992		55,308		63,536		68,812		69,417		77,939		8,102		19,201		16,806

Note: The Innovation Platform includes other immaterial equity investees. As at December 31, 2018, 2017 and 2016, the aggregate carrying amount of investments in NSPL and other immaterial equity investees was approximately US$8,514,000, US$19,512,000 and US$17,031,000 respectively.

The equity investees had the following lease commitments and capital commitments:

Substantially all accounts payable are denominated in RMB and US$ and due within one year from the end of the reporting period. The carrying values of accounts payable approximate their fair values due to their short-term maturities.

The weighted average interest rate for outstanding bank borrowings for the years ended December 31, 2018, 2017 and 2016 was 2.79% per annum, 1.90% per annum and 1.52% per annum respectively. In addition, the Group incurred guarantee fees of nil, US$320,000 and US$471,000 respectively for the years ended December 31, 2018, 2017 and 2016, which was nil, 0.76% per annum and 0.94% per annum respectively of the weighted average outstanding bank borrowings. The carrying amounts of the Group's bank borrowings are all denominated in HK$.

In November 2017, the Group through its subsidiary, entered into facility agreements with a bank for the provision of unsecured credit facilities in the aggregate amount of HK$400,000,000 (US$51,282,000). The credit facilities include (i) a HK$210,000,000 (US$26,923,000) 3-year term loan facility and (ii) a HK$190,000,000 (US$24,359,000) 18-month revolving loan facility. The term loan bears interest at 1.50% over the Hong Kong Interbank Offered Rate ("HIBOR") per annum and an upfront fee of HK$1,575,000 (US$202,000). The revolving loan facility bears interest at 1.25% over HIBOR per annum. The term loan was drawn in May 2018 and is due in November 2020. Accordingly, the term loan is recorded under long-term bank borrowings as at December 31, 2018. As at December 31, 2018 and 2017, no amount has been drawn from the revolving loan facility. These credit facilities are guaranteed by the Company.

In August 2018, the Group through its subsidiary, entered into two separate facility agreements with banks for the provision of unsecured credit facilities in the aggregate amount of HK$507,000,000 (US$65,000,000). The first credit facility is a HK$351,000,000 (US$45,000,000) revolving loan facility, with a term of 2 years and an annual interest rate of 1.35% over HIBOR. The second credit facility is a HK$156,000,000 (US$20,000,000) revolving loan facility, with a term of 2 years and an annual interest rate of 1.35% over HIBOR. These credit facilities are guaranteed by the Company. As at December 31, 2018, no amount has been drawn from either of the revolving loan facilities.

In February 2017, the Group through its subsidiary, entered into two separate facility agreements with banks for the provision of unsecured credit facilities in the aggregate amount of HK$546,000,000 (US$70,000,000). The first credit facility included (i) a HK$156,000,000 (US$20,000,000) term loan facility and (ii) a HK$195,000,000 (US$25,000,000) revolving loan facility, both with a term of 18 months and an annual interest rate of 1.25% over HIBOR. The second credit facility included (i) a HK$78,000,000 (US$10,000,000) term loan facility and (ii) a HK$117,000,000 (US$15,000,000) revolving loan facility, both with a term of 18 months and an annual interest rate of 1.25% over HIBOR. The term loans from the first and second credit facilities were repaid in May 2018. Both revolving loan facilities were terminated in August 2018.

In November 2018, the Group through its subsidiary renewed a 3-year revolving loan facility with a bank in the aggregate amount of HK$234,000,000 (US$30,000,000) with an annual interest rate of 0.85% over HIBOR (prior to the renewal, the revolving loan facility had an annual interest rate of 1.25% over HIBOR). This credit facility is guaranteed by the Company. In February 2017, HK$20,000,000 (US$2,564,000) was drawn from this facility and the amount was fully repaid in March 2017. As at December 31, 2018 and 2017, no amount has been drawn from the revolving loan facility.

The Group's bank borrowings are repayable as from the dates indicated as follows:

As at December 31, 2018 and 2017, the Group had unutilized bank borrowing facilities of HK$931,000,000 (US$119,359,000) and HK$946,000,000 (US$121,282,000) respectively.

The Group leases various factories and offices under non-cancellable operating lease agreements. Future aggregate minimum payments under non-cancellable operating leases were as follows:

On March 17, 2016, the Company's ADS, each representing one-half of one ordinary share, commenced trading on the Nasdaq Global Select Market. Concurrently, the Company issued 3,750,000 ordinary shares in the form of 7,500,000 ADS for gross proceeds of US$101.3 million. On April 13, 2016, the Company issued an additional 330,000 ordinary shares in the form of 660,000 ADS for gross proceeds of US$8.9 million. Issuance costs totaled US$14.2 million, of which US$12.9 million and US$1.3 million were paid in the years ended December 31, 2016 and 2015 respectively.

In October 2017, the Company issued 5,684,905 ordinary shares in the form of 11,369,810 ADS for gross proceeds of US$301.3 million. Issuance costs totaled US$8.6 million.

Each ordinary share is entitled to one vote. The holders of ordinary shares are also entitled to receive dividends whenever funds are legally available and when declared by the Board of Directors of the Company.

The Company conditionally adopted a share option scheme on June 4, 2005 (as amended on March 21, 2007) and such scheme has a term of 10 years. It expired in 2016 and no further share options can be granted. Another share option scheme was conditionally adopted on April 24, 2015 (the "HCML Share Option Scheme"). Pursuant to the HCML Share Option Scheme, the Board of Directors of the Company may, at its discretion, offer any employees and directors (including Executive and Non-executive Directors but excluding Independent Non-executive Directors) of the Company, holding companies of the Company and any of their subsidiaries or affiliates, and subsidiaries or affiliates of the Company share options to subscribe for shares of the Company.

As at December 31, 2018, the aggregate number of shares issuable under the HCML Share Option Scheme is 2,313,097 ordinary shares and the aggregate number of shares issuable under the prior share option scheme which expired in 2016 is 184,518 ordinary shares. Additionally, the number of shares authorized but unissued was 8,342,255 ordinary shares.

Share options granted are generally subject to a four-year vesting schedule, depending on the nature and the purpose of the grant. Share options subject to the four-year vesting schedule, in general, vest 25% upon the first anniversary of the vesting commencement date as defined in the grant letter, and 25% every subsequent year. However, certain share option grants may have a different vesting schedule as approved by the Board of Directors of the Company. No outstanding share options will be exercisable or subject to vesting after the expiry of a maximum of eight to ten years from the date of grant.

On June 15, 2016, 1,187,372 share options of a subsidiary were cancelled with the consent of the relevant eligible employees in exchange for 593,686 new share options of the Company (Note 16(ii)). This was accounted for as a modification of the original share options granted which did not result in any incremental fair value to the Group.

A summary of the Company's share option activity and related information is as follows:

	Number of share options		Weighted average exercise price in £ per share	Weighted average remaining contractual life (years)	Aggregate intrinsic value (in £'000)

Outstanding at January 1, 2016	442,365		5.16	6.53	10,061
Granted	693,686		19.70
Exercised	(92,705	)	3.54
Cancelled	(3,750	)	6.10

Outstanding at December 31, 2016	1,039,596		15.00	6.77	7,900



Granted	150,000		31.05
Exercised	(56,309	)	5.16
Cancelled	(6,875	)	6.10

Outstanding at December 31, 2017	1,126,412		17.69	6.29	43,158



Granted	1,060,626		46.87
Exercised	(210,708	)	14.03
Cancelled	(120,845	)	43.03

Outstanding at December 31, 2018	1,855,485		33.13	7.35	15,158



Vested and exercisable at December 31, 2016	767,376		14.64	6.66	6,106
Vested and exercisable at December 31, 2017	951,412		15.52	5.81	38,508
Vested and exercisable at December 31, 2018	803,204		16.77	4.84	14,843

In estimating the fair value of share options granted, the following assumptions were used in the Polynomial model for awards granted in the periods indicated:

The Company will issue new shares to satisfy share option exercises. The following table summarizes the Company's share option exercises:

The Group recognizes compensation expense on a graded vesting approach over the requisite service period. The following table presents share-based compensation expense included in the Group's consolidated statements of operations:

As at December 31, 2018, the total unrecognized compensation cost was US$15,663,000, and will be recognized on a graded vesting approach over the weighted average remaining service period of 3.32 years.

Hutchison MediPharma Holdings Limited ("HMHL") adopted a share option scheme on August 6, 2008 (as amended on April 15, 2011) and such scheme has a term of 6 years. It expired in 2014 and no further share options can be granted. Another share option scheme was adopted on December 17, 2014 (the "HMHL Share Option Scheme"). Pursuant to the HMHL Share Option Scheme, any employee or director of HMHL and any of its holding company, subsidiaries and affiliates is eligible to participate in the HMHL Share Option Scheme subject to the discretion of the board of directors of HMHL.

The aggregate number of shares issuable under the HMHL Share Option Scheme is 2,144,408 ordinary shares. As at December 31, 2018, the number of shares authorized but unissued was 157,111,839 ordinary shares of HMHL.

Share options granted are generally subject to a four-year vesting schedule, depending on the nature and the purpose of the grant. Share options subject to the four-year vesting schedule, in general, vest 25% upon the first anniversary of the vesting commencement date as defined in the grant letter, and 25% every subsequent year. No outstanding share options will be exercisable or subject to vesting after the expiry of a maximum of six or nine years from the date of grant.

On June 15, 2016, 1,187,372 share options pursuant to the HMHL Share Option Schemes were cancelled with the consent of the relevant eligible employees in exchange for 593,686 new share options of the Company pursuant to the HCML Share Option Schemes (Note 16(i)). This was accounted for as a modification of the original share options granted which did not result in any incremental fair value to the Group.

Subsequent to the cancellation, there were no share options outstanding nor any other share option activity as at and for the years ended December 31, 2018, 2017 and 2016.

The subsidiary recognized compensation expense on a graded vesting approach over the requisite service period. The following table presents share-based compensation expense included in the Group's consolidated statements of operations:

The Company grants awards under the LTIP to participating directors and employees, giving them a conditional right to receive ordinary shares of the Company or the equivalent ADS (collectively the "Awarded Shares") to be purchased by the Trustee up to a cash amount. Vesting will depend upon continued employment of the award holder with the Group and will otherwise be at the discretion of the Board of Directors of the Company. Additionally, some awards are subject to change based on annual performance targets prior to their determination date.

Performance targets vary by award, and may include targets for shareholder returns, free cash flows, revenues, net profit after taxes and the achievement of clinical and regulatory milestones. As the extent of achievement of the performance targets is uncertain prior to the determination date, a probability based on management's assessment on the achievement of the performance target has been assigned to calculate the amount to be recognized as an expense over the requisite period with a corresponding entry to liability.

Upon the determination date, the Company will pay a determined monetary amount, up to the maximum cash amount based on the actual achievement of the performance target specified in the award, to the Trustee to purchase the Awarded Shares. Any cumulative compensation expense previously recognized as a liability will be transferred to additional paid-in capital, as an equity-settled award. If the performance target is not achieved, no Awarded Shares of the Company will be purchased and the amount previously recorded in the liability will be reversed through profit or loss.

The Trustee has been set up solely for the purpose of purchasing and holding the Awarded Shares during the vesting period on behalf of the Group using funds provided by the Group. On the determination date, if any, the Company will determine the cash amount, based on the actual achievement of each annual performance target, for the Trustee to purchase the Awarded Shares. The Awarded Shares will then be held by the Trustee until they are vested.

The Trustee's assets include treasury shares and funds for additional treasury shares, trustee fees and expenses. The number of treasury shares (in the form of ordinary shares or ADS of the Company) purchased and held by the Trustee were as follows:

Based on the actual achievement of performance targets for the 2018 financial year, the Group expects to purchase up to US$1,133,000 of treasury shares in 2019.

For the years ended December 31, 2018, 2017 and 2016, US$692,000, US$79,000 and US$25,000 of the LTIP awards were forfeited respectively.

The following table presents the share-based compensation expenses recognized under the LTIP awards:

For the years ended December 31, 2018, 2017 and 2016, US$1,770,000, US$451,000 and US$64,000 were reclassified from liability to additional paid-in capital respectively upon LTIP awards reaching the determination date. As at December 31, 2018 and 2017, US$1,235,000 and US$2,241,000 were recorded as liabilities respectively for LTIP awards prior to the determination date.

As at December 31, 2018, the total unrecognized compensation cost was approximately US$4,773,000, which considers expected performance targets and the amount expected to vest, and will be recognized over the requisite periods.

The following table presents revenue disaggregated by customer types and major categories, and reconciles disaggregated revenue with reportable segments:

As at January 1, 2018 after the adoption of ASC 606, deferred revenue was US$3.9 million, of which US$2.1 million was recognized during the year ended December 31, 2018. Estimated deferred revenue to be recognized over time as from the date indicated is as follows:

Innovation Platform revenue is mainly from license and collaboration agreements as follows:

On October 8, 2013, the Group entered into a licensing, co-development and commercialization agreement in China with Eli Lilly and Company ("Lilly") relating to fruquintinib ("Lilly Agreement"), a targeted oncology therapy for the treatment of various types of solid tumors. Under the terms of the Lilly Agreement, the Group is entitled to receive a series of payments up to US$86.5 million, including upfront payments and development and regulatory approval milestones. Fruquintinib was successfully commercialized in China in November 2018, and the Group receives tiered royalties in the range of 15% to 20% on all sales in China. Development costs after the first development milestone are shared between the Group and Lilly.

In December 2018, the Group entered into various amendments to the Lilly Agreement (the "2018 Amendment"). Under the terms of the 2018 Amendment, the Group is entitled to determine and conduct future life cycle indications ("LCI") development of fruquintinib in China beyond the three initial indications specified in the Lilly Agreement and will be responsible for all associated development costs. In return, the Group will receive additional regulatory approval milestones of US$20 million for each LCI approved, for up to three LCI or US$60 million in aggregate, and will increase tiered royalties to a range of 15% to 29% on all fruquintinib sales in China upon the commercial launch of the first LCI.

The 2018 Amendment provides the Group rights to promote fruquintinib in provinces that represent 30% of the sales of fruquintinib in China upon the occurrence of certain commercial milestones by Lilly. Such provinces will expand to 40% of the sales of fruquintinib in China subject to additional criteria being met. In return, Lilly will pay the Group service fees for such promotion and marketing services performed. Additionally, Lilly has provided consent, and freedom to operate, for the Group to enter into joint development collaborations with certain third-party pharmaceutical companies to explore combination treatments of fruquintinib and various immunotherapy agents.

Upfront and cumulative milestone payments according to the Lilly Agreement received up to December 31, 2018 are summarized as follows:

In addition, the Group signed an option agreement which grants Lilly an exclusive option to expand the fruquintinib rights beyond Hong Kong and China. The option agreement further sets out certain milestone payments and royalty rates that apply in the event the option is exercised on a global basis. However, these are subject to further negotiation should the option be exercised on a specific territory basis as opposed to a global basis. The option was determined at the inception of the contract to have minimal value. As at December 31, 2018, the option has not been exercised, and in January 2019, Lilly elected not to exercise the option.

The Group adopted ASC 606 on January 1, 2018 and reassessed the Lilly Agreement under the new standard, which resulted in US$0.1 million recognition of previously deferred revenue as a cumulative adjustment to opening accumulated losses as at January 1, 2018, summarized as follows (in US$ millions).

Under ASC 606, the Group identified the following performance obligations under the Lilly Agreement: (1) the license for the commercialization rights to fruquintinib and (2) the research and development services for the specified indications. The transaction price includes the upfront payment, research and development cost reimbursements, milestone payments and sales-based royalties. Milestone payments were not included in the transaction price until it became probable that a significant reversal of revenue would not occur, which is generally when the specified milestone is achieved. The allocation of the transaction price to each performance obligation was based on the relative standalone selling prices of each performance obligation determined at the inception of the contract. Based on this estimation, proportionate amounts of transaction price to be allocated to the license to fruquintinib and the research and development services were 90% and 10% respectively. Control of the license to fruquintinib transferred at the inception date of the agreement and consequently, amounts allocated to this performance obligation were recognized at inception. Conversely, research and development services for each specified indication are performed over time and amounts allocated are recognized over time using the prior and estimated future development costs for fruquintinib as a measure of progress. Royalties are recognized as future sales occur as they meet the requirements for the sales-usage based royalty exception.

The Group identified the following performance obligations under the 2018 Amendment: (1) the research and development services for the LCI and (2) the promotion and marketing services. As at December 31, 2018, none of the services had commenced.

Revenue recognized under the Lilly Agreement by transaction price type is as follows:

Note: During the year ended December 31, 2018, the Group achieved a milestone in relation to the approval of fruquintinib as a treatment of patients with advanced colorectal cancer. During the year ended December 31, 2017, the Group achieved a milestone in relation to the acceptance of a new drug application by the China Food and Drug Administration (now the National Medical Products Administration of China) for fruquintinib as a treatment of patients with advanced colorectal cancer. During the year ended December 31, 2016, no milestones were achieved.

On December 21, 2011 (as amended on August 1, 2016), the Group and AstraZeneca AB (publ) ("AZ") entered into a global licensing, co-development, and commercialization agreement for savolitinib ("AZ Agreement"), a novel targeted therapy and a highly selective inhibitor of the c-Met receptor tyrosine kinase for the treatment of cancer. Under the terms of the AZ Agreement, the Group is entitled to receive a series of payments up to US$140 million, including upfront payments and development and first-sale milestones. Additionally, the AZ Agreement contains possible significant future commercial sale milestones. Should savolitinib be successfully commercialized outside China, the Group would receive tiered royalties from 9% to 13% on all sales outside of China. Subject to approval of savolitinib in papillary renal cell carcinoma, the Group would receive increased tiered royalties from 14% to 18% on all sales outside of China, and after total aggregate sales of savolitinib have reached US$5 billion, this royalty will step down over a two-year period to an ongoing tiered royalty rate from 10.5% to 14.5%. Should savolitinib be successfully commercialized in China, the Group would receive fixed royalties of 30% based on all sales in China. Development costs for savolitinib in China will be shared between the Group and AZ, with the Group continuing to lead the development in China. AZ will lead and pay for the development of savolitinib for the rest of the world.

Upfront and cumulative milestone payments according to the AZ Agreement received up to December 31, 2018 are summarized as follows:

The Group adopted ASC 606 on January 1, 2018 and reassessed the AZ Agreement under the new standard, which resulted in US$1.2 million deferral of previously recognized revenue as a cumulative adjustment to opening accumulated losses as at January 1, 2018, summarized as follows (in US$ millions).

Under ASC 606, the Group identified the following performance obligations under the AZ Agreement: (1) the license for the commercialization rights to savolitinib and (2) the research and development services for the specified indications. The transaction price includes the upfront payment, research and development cost reimbursements, milestone payments and sales-based royalties. Milestone payments were not included in the transaction price until it became probable that a significant reversal of revenue would not occur, which is generally when the specified milestone is achieved. The allocation of the transaction price to each performance obligation was based on the relative standalone selling prices of each performance obligation determined at the inception of the contract. Based on this estimation, proportionate amounts of transaction price to be allocated to the license to savolitinib and the research and development services were 95% and 5% respectively. Control of the license to savolitinib transferred at the inception date of the agreement and consequently, amounts allocated to this performance obligation were recognized at inception. Conversely, research and development services for each specified indication are performed over time and amounts allocated are recognized over time using the prior and estimated future development costs for savolitinib as a measure of progress.

Revenue recognized under the AZ Agreement by transaction price type is as follows:

Note: During the year ended December 31, 2018, no milestones were achieved. During the year ended December 31, 2017, the Group achieved a milestone in relation to the Phase III initiation for the secondary indication papillary renal cell carcinoma. During the year ended December 31, 2016, the Group achieved a milestone in relation to the Phase IIb initiation for the primary indication non-small cell lung cancer.

The Group receives government grants from the PRC Government (including the National level and Shanghai Municipal City). Government grants in the Innovation Platform are primarily given in support of Drug R&D activities and are conditional upon i) the Group spending a predetermined amount, regardless of success or failure of the research and development projects and ii) the achievement of certain stages of research and development projects being approved by the relevant PRC government authority. They are refundable to the PRC Government if the related research and development projects are suspended. Government grants in the Commercial Platform are primarily given to promote local initiatives. These government grants may be subject to ongoing reporting and monitoring by the PRC Government over the period of the grant.

Government incentives, which are deferred and recognized in the consolidated statements of operations over the period necessary to match them with the costs that they are intended to compensate, are recognized in other payable, accruals and advance receipts (Note 12) and other non-current liabilities. For the years ended December 31, 2018, 2017 and 2016, the Group received government grants of US$1,798,000 US$1,323,000 and US$1,872,000 respectively.

The government grants were recognized in the consolidated statements of operations as follows:

20. Significant Transactions with Related Parties and Non-Controlling Shareholders of Subsidiaries

The Group has the following significant transactions with related parties and non-controlling shareholders of subsidiaries, which were carried out in the normal course of business at terms determined and agreed by the relevant parties.

	Year Ended December 31,

	2018	2017	2016
	(in US$'000)
Sales to:
Indirect subsidiaries of CK Hutchison	8,306	8,486	9,794



Revenue from research and development services from:
Equity investees	7,832	9,682	8,429



Purchases from:
Equity investees	2,827	1,182	280



Rendering of marketing services from:
An indirect subsidiary of CK Hutchison	546	372	741
An equity investee	12,703	10,195	8,401

	13,249	10,567	9,142



Rendering of management services from:
An indirect subsidiary of CK Hutchison	922	897	874



Interest paid to:
Immediate holding company	—	—	152
An indirect subsidiary of CK Hutchison	—	132	—

	—	132	152



Guarantee fee on bank borrowing to:
An indirect subsidiary of CK Hutchison	—	320	471

	December 31,

	2018	2017
	(in US$'000)
Accounts receivable—related parties
Indirect subsidiaries of CK Hutchison (note (a))	2,709	2,761
Equity investees (note (a))	73	1,099

	2,782	3,860



Accounts payable
An equity investee (note (a))	6,507	20



Amounts due from related parties
An indirect subsidiary of CK Hutchison (note (a))	—	23
Equity investees (note (a))	889	893
Dividend receivable from an equity investee	—	7,628

	889	8,544



Amounts due to related parties
An indirect subsidiary of CK Hutchison (note (b))	432	454
An equity investee (note (a))	—	6,567

	432	7,021



Other deferred income
An equity investee (note (c))	1,356	1,648

(iv) Balances with non-controlling shareholders of subsidiaries included in:

Notes:

(a): The Company, two subsidiaries incorporated in the British Virgin Islands and its Hong Kong subsidiaries are subject to Hong Kong profits tax which has been provided for at the rate of 16.5% on the estimated assessable profits less estimated available tax losses in each entity.
(b): Taxation in the PRC has been provided for at the applicable rate on the estimated assessable profits less estimated available tax losses, if any, in each entity. Under the PRC Enterprise Income Tax Law (the "EIT Law"), the standard enterprise income tax rate is 25%. In addition, the EIT Law provides for, among others, a preferential tax rate of 15% for companies which qualify as HNTE. HMPL and its wholly-owned subsidiary Hutchison MediPharma (Suzhou) Limited qualify as a HNTE up to December 31, 2019 and 2020 respectively.

Pursuant to the EIT law, a 10% withholding tax is levied on dividends paid by PRC companies to their foreign investors. A lower withholding tax rate of 5% is applicable under the China-HK Tax Arrangement if direct foreign investors with at least 25% equity interest in the PRC companies are Hong Kong tax residents, and meet the conditions or requirements pursuant to the relevant PRC tax regulations regarding beneficial ownership. Since the equity holders of the major subsidiaries and equity investees of the Company are Hong Kong incorporated companies and Hong Kong tax residents, and meet the aforesaid conditions or requirements, the Company has used 5% to provide for deferred tax liabilities

The reconciliation of the Group's reported income tax expense to the theoretical tax amount that would arise using the tax rates of the Company against the Group's loss before income taxes and equity in earnings of equity investees is as follows:

The significant components of deferred tax assets and liabilities are as follows:

The deferred tax assets and liabilities are offset when there is a legally enforceable right to set off and when the deferred income taxes relate to the same fiscal authority.

The tax losses can be carried forward against future taxable income and will expire in the following years:

The Company believes that it is more likely than not that future operations will not generate sufficient taxable income to realize the benefit of the deferred tax assets. The Company's subsidiaries have had sustained tax losses, which will expire within five years if not utilized in the case of PRC subsidiaries (ten years for HNTEs with effect from January 1, 2018), and which will not be utilized in the case of Hong Kong subsidiaries as they do not generate taxable profits. Accordingly, a valuation allowance has been recorded against the relevant deferred tax assets arising from the tax losses.

As at December 31, 2018 and 2017, the Group did not have any material unrecognized uncertain tax positions.

Basic (losses)/earnings per share is calculated by dividing the net (loss)/income attributable to the Company by the weighted average number of outstanding ordinary shares in issue during the year. Treasury shares held by the Trustee are excluded from the weighted average number of outstanding ordinary shares in issue for purposes of calculating basic (losses)/earnings per share.

Diluted (losses)/earnings per share is calculated by dividing net (loss)/income attributable to the Company by the weighted average number of outstanding ordinary shares in issue and dilutive ordinary share equivalents outstanding during the year. Dilutive ordinary share equivalents include shares issuable

upon the exercise or settlement of share option and LTIP awards issued by the Company using the treasury stock method.

For the years ended December 31, 2018 and 2017, the share options and LTIP awards issued by the Company were not included in the calculation of diluted losses per share because of their anti-dilutive effect.

The Group determines its operating segments from both business and geographic perspectives as follows:

Innovation Platform and Prescription Drugs businesses under the Commercial Platform are primarily located in the PRC. The locations for Consumer Health business under the Commercial Platform are further segregated into the PRC and Hong Kong.

The performance of the reportable segments is assessed based on three measurements: (a) losses or earnings of subsidiaries before interest income, interest expense, income tax expenses and equity in earnings of equity investees, net of tax ("Adjusted (LBIT)/EBIT" or "Adjusted LBIT"), (b) equity in earnings of equity investees, net of tax and (c) operating (loss)/profit.

	Year Ended December 31, 2018

	Innovation Platform		Commercial Platform
	Drug R&D		Prescription Drugs	Consumer Health
	PRC		PRC	PRC	Hong Kong	Subtotal	Unallocated		Total
	(in US$'000)
Revenue from external customers	41,233		132,829	11,949	28,098	172,876	—		214,109

Adjusted (LBIT)/EBIT	(83,724	)	5,131	742	2,662	8,535	(16,435	)	(91,624	)
Interest income	119		66	16	59	141	5,718		5,978
Equity in earnings of equity investees, net of tax	(18,981	)	29,884	8,430	—	38,314	—		19,333

Operating (loss)/profit	(102,586	)	35,081	9,188	2,721	46,990	(10,717	)	(66,313	)
Interest expense	—		—	—	62	62	947		1,009
Income tax expense	81		1,063	179	420	1,662	2,221		3,964
Net (loss)/income attributable to ordinary shareholders of the Company	(102,412	)	32,080	8,166	1,126	41,372	(13,765	)	(74,805	)
Depreciation/amortization	3,334		132	23	40	195	61		3,590
Additions to non-current assets (other than financial instruments and deferred tax assets)	5,198		114	36	434	584	720		6,502

	Year Ended December 31, 2017

	Innovation Platform		Commercial Platform
	Drug R&D		Prescription Drugs	Consumer Health
	PRC		PRC	PRC		Hong Kong	Subtotal	Unallocated		Total
	(in US$'000)
Revenue from external customers	35,997		166,435	9,858		28,913	205,206	—		241,203

Adjusted (LBIT)/EBIT	(47,503	)	3,272	578		3,029	6,879	(12,677	)	(53,301	)
Interest income	64		37	13		13	63	1,093		1,220
Equity in earnings of equity investees, net of tax	(4,547	)	27,812	10,388		—	38,200	—		33,653

Operating (loss)/profit	(51,986	)	31,121	10,979		3,042	45,142	(11,584	)	(18,428	)
Interest expense	—		—	—		66	66	1,389		1,455
Income tax expense	26		934	(457	)	509	986	2,068		3,080
Net (loss)/income attributable to ordinary shareholders of the Company	(51,880	)	28,999	9,773		1,261	40,033	(14,890	)	(26,737	)
Depreciation/amortization	2,400		116	17		18	151	27		2,578
Additions to non-current assets (other than financial instruments and deferred tax assets)	5,936		56	43		8	107	30		6,073

	Year Ended December 31, 2016

	Innovation Platform		Commercial Platform
	Drug R&D		Prescription Drugs	Consumer Health
	PRC		PRC	PRC		Hong Kong	Subtotal	Unallocated		Total
	(in US$'000)
Revenue from external customers	35,228		149,861	6,984		24,007	180,852	—		216,080

Adjusted (LBIT)/EBIT	(36,657	)	2,377	(493	)	1,852	3,736	(13,306	)	(46,227	)
Interest income	52		31	34		1	66	384		502
Equity in earnings of equity investees, net of tax	(4,232	)	60,288	10,188		—	70,476	—		66,244

Operating (loss)/profit	(40,837	)	62,696	9,729		1,853	74,278	(12,922	)	20,519
Interest expense	—		—	—		79	79	1,552		1,631
Income tax expense	—		777	(497	)	289	569	3,762		4,331
Net (loss)/income attributable to ordinary shareholders of the Company	(40,735	)	61,120	8,384		833	70,337	(17,904	)	11,698
Depreciation/amortization	2,176		102	3		19	124	41		2,341
Additions to non-current assets (other than financial instruments and deferred tax assets)	4,138		67	20		51	138	51		4,327

Revenue from external customers is after elimination of inter-segment sales. The amount eliminated attributable to sales within Consumer Health business from Hong Kong to the PRC was nil, US$2,536,000 and US$1,306,000 for the years ended December 31, 2018, 2017 and 2016 respectively. Sales between segments are carried out at mutually agreed terms.

There was one customer which accounted for over 10% of the Group's revenue for the year ended December 31, 2018. There were no customers which accounted for over 10% of the Group's revenue for the years ended December 31, 2017 and 2016.

Unallocated expenses mainly represent corporate expenses which include corporate employee benefit expenses and the relevant share-based compensation expenses. Unallocated assets mainly comprise cash and cash equivalents and short-term investments.

Reconciliation of net (loss)/income for the year to net cash used in operating activities:

	Year Ended December 31,

	2018		2017		2016
	(in US$'000)
Net (loss)/income	(71,286	)	(22,963	)	14,557
Adjustments to reconcile net (loss)/income to net cash used in operating activities
Amortization of finance costs	76		147		92
Depreciation and amortization	3,590		2,578		2,341
Loss on retirement of property, plant and equipment	33		57		30
Provision for excess and obsolete inventories	37		(16	)	163
Provision for doubtful accounts	(202	)	242		(208	)
Share-based compensation expense—share options	7,903		1,316		1,780
Share-based compensation expense—LTIP	2,227		3,423		1,661
Equity in earnings of equity investees, net of tax	(19,333	)	(33,653	)	(66,244	)
Dividends received from equity investees	35,218		55,586		30,528
Unrealized currency translation loss/(gain)	1,515		(399	)	633
Changes in income tax balances	212		(756	)	1,667
Changes in working capital
Accounts receivable—third parties	(1,564	)	2,160		(7,258	)
Accounts receivable—related parties	1,078		363		(2,354	)
Other receivables, prepayments and deposits	(2,385	)	(6,982	)	(1,129	)
Amounts due from related parties	27		220		1,157
Inventories	(557	)	1,049		(3,430	)
Long-term prepayment	292		123		361
Accounts payable	1,260		(11,173	)	11,452
Other payables, accruals and advance receipts	16,286		5,194		7,554
Deferred revenue	(239	)	(897	)	(1,668	)
Other deferred income	(446	)	(275	)	131
Amounts due to related parties	(6,589	)	(4,287	)	(1,385	)

Total changes in working capital	7,163		(14,505	)	3,431

Net cash used in operating activities	(32,847	)	(8,943	)	(9,569	)

From time to time, the Group may become involved in litigation relating to claims arising from the ordinary course of business. The Group believes that there are currently no claims or actions pending against the Group, the ultimate disposition of which could have a material adverse effect on the Group's results of operations, financial position or cash flows. However, litigation is subject to inherent uncertainties and the Group's view of these matters may change in the future. When an unfavorable outcome occurs, there exists the possibility of a material adverse impact on the Group's financial position and results of operations for the periods in which the unfavorable outcome occurs, and potentially in future periods.

Relevant PRC laws and regulations permit payments of dividends by the Company's subsidiaries in the PRC only out of their retained earnings, if any, as determined in accordance with PRC accounting standards and regulations. In addition, the Company's subsidiaries in the PRC are required to make

certain appropriations of net after-tax profits or increases in net assets to the statutory surplus fund prior to payment of any dividends. In addition, registered share capital and capital reserve accounts are restricted from withdrawal in the PRC, up to the amount of net assets held in each subsidiary. As a result of these and other restrictions under PRC laws and regulations, the Company's subsidiaries in the PRC are restricted in their ability to transfer their net assets to the Group in terms of cash dividends, loans or advances, with restricted portions amounting to US$7,427,000 and US$7,277,000 as at December 31, 2018 and 2017 respectively, which excludes the Company's subsidiaries with a shareholders' deficit. Even though the Group currently does not require any such dividends, loans or advances from the PRC subsidiaries, for working capital and other funding purposes, the Group may in the future require additional cash resources from the Company's subsidiaries in the PRC due to changes in business conditions, to fund future acquisitions and development, or merely to declare and pay dividends to make distributions to shareholders.

In addition, the Group has certain investments in equity investees in the PRC, where the Group's equity in undistributed earnings amounted to US$92,216,000 and US$85,400,000 as at December 31, 2018 and 2017 respectively.

The Group evaluated subsequent events through March 11, 2019, which is the date when the consolidated financial statements were issued.

To the Board of Directors and Shareholders of Shanghai Hutchison Pharmaceuticals Limited

We have audited the accompanying consolidated financial statements of Shanghai Hutchison Pharmaceuticals Limited and its subsidiaries, which comprise the consolidated statements of financial position as of December 31, 2018 and 2017, and the related consolidated income statements, consolidated statements of comprehensive income, of changes in equity and of cash flows for each of the three years in the period ended December 31, 2018.

Management is responsible for the preparation and fair presentation of the consolidated financial statements in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board; this includes the design, implementation, and maintenance of internal control relevant to the preparation and fair presentation of consolidated financial statements that are free from material misstatement, whether due to fraud or error.

Our responsibility is to express an opinion on the consolidated financial statements based on our audits. We conducted our audits in accordance with auditing standards generally accepted in the United States of America. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free from material misstatement.

An audit involves performing procedures to obtain audit evidence about the amounts and disclosures in the consolidated financial statements. The procedures selected depend on our judgment, including the assessment of the risks of material misstatement of the consolidated financial statements, whether due to fraud or error. In making those risk assessments, we consider internal control relevant to the Company's preparation and fair presentation of the consolidated financial statements in order to design audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control. Accordingly, we express no such opinion. An audit also includes evaluating the appropriateness of accounting policies used and the reasonableness of significant accounting estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our audit opinion.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Shanghai Hutchison Pharmaceuticals Limited and its subsidiaries as of December 31, 2018 and 2017, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2018 in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board.

/s/ PricewaterhouseCoopers Zhong Tian LLP
Shanghai, the People's Republic of China
March 11, 2019

Shanghai Hutchison Pharmaceuticals Limited
Consolidated Income Statements
(in US$'000)

The accompanying notes are an integral part of these consolidated financial statements.

Shanghai Hutchison Pharmaceuticals Limited
Consolidated Statements of Comprehensive Income
(in US$'000)

The accompanying notes are an integral part of these consolidated financial statements.

Shanghai Hutchison Pharmaceuticals Limited
Consolidated Statements of Financial Position
(in US$'000)

		December 31,

	Note	2018	2017
Assets
Current assets
Cash and cash equivalents	11	25,051	43,527
Trade and bills receivables	12	31,834	22,445
Other receivables, prepayments and deposits	13	2,707	2,456
Inventories	14	64,920	61,107

Total current assets		124,512	129,535
Property, plant and equipment	15	83,058	90,734
Leasehold land		7,050	7,528
Other intangible asset		1,333	1,621
Deferred tax assets	16	7,091	3,594

Total assets		223,044	233,012



Liabilities and shareholders' equity
Current liabilities
Trade payables	17	7,172	11,773
Other payables, accruals and advance receipts	18	71,514	74,551
Current tax liabilities	19	5,671	5,341

Total current liabilities		84,357	91,665
Deferred income		6,909	8,616

Total liabilities		91,266	100,281

Shareholders' equity
Share capital		33,382	33,382
Reserves		98,396	99,349

Total shareholders' equity		131,778	132,731

Total liabilities and shareholders' equity		223,044	233,012

The accompanying notes are an integral part of these consolidated financial statements.

Shanghai Hutchison Pharmaceuticals Limited
Consolidated Statements of Changes in Equity
(in US$'000)

	Share capital	Exchange reserve		General reserves	Retained earnings		Total equity

As at January 1, 2016	33,382	2,241		925	56,715		93,263
Profit for the year	—	—		—	120,499		120,499
Other comprehensive loss
Exchange translation differences	—	(8,571	)	—	—		(8,571	)

Total comprehensive (loss)/income	—	(8,571	)	—	120,499		111,928

Transfer between reserves	—	—		30	(30	)	—
Dividends declared to shareholders	—	—		—	(55,057	)	(55,057	)

As at December 31, 2016	33,382	(6,330	)	955	122,127		150,134



Profit for the year	—	—		—	55,623		55,623
Other comprehensive income
Exchange translation differences	—	8,273		—	—		8,273

Total comprehensive income	—	8,273		—	55,623		63,896

Transfer between reserves	—	—		15	(15	)	—
Dividends declared to shareholders	—	—		—	(81,299	)	(81,299	)

As at December 31, 2017	33,382	1,943		970	96,436		132,731



Profit for the year	—	—		—	59,767		59,767
Other comprehensive loss
Exchange translation differences	—	(5,797	)	—	—		(5,797	)

Total comprehensive (loss)/income	—	(5,797	)	—	59,767		53,970

Dividends declared to shareholders	—	—		—	(54,923	)	(54,923	)

As at December 31, 2018	33,382	(3,854	)	970	101,280		131,778

The accompanying notes are an integral part of these consolidated financial statements.

Shanghai Hutchison Pharmaceuticals Limited
Consolidated Statements of Cash Flows
(in US$'000)

		Year Ended December 31,

	Note	2018		2017		2016
Operating activities
Net cash generated from operations	20	54,699		78,503		64,310
Interest received		638		844		467
Income tax paid	19	(12,158	)	(19,887	)	(15,595	)

Net cash generated from operating activities		43,179		59,460		49,182

Investing activities
Purchase of property, plant and equipment	15	(5,172	)	(7,744	)	(11,171	)
Proceeds from disposal of property, plant and equipment		13		—		4
Deposits into bank deposits maturing over three months		—		(19,076	)	(57,001	)
Proceeds from bank deposits maturing over three months		—		59,281		20,563
Proceeds from disposal of assets held for sale, net of costs	7	—		9,776		58,839
Capitalized interest expense paid for property, plant and equipment	15	—		—		(768	)
Government grants received relating to property, plant and equipment		—		1,569		166

Net cash (used in)/generated from investing activities		(5,159	)	43,806		10,632

Financing activities
Dividends paid to shareholders		(54,667	)	(81,299	)	(55,057	)
Repayment of bank borrowings		—		—		(25,577	)

Net cash used in financing activities		(54,667	)	(81,299	)	(80,634	)

Net (decrease)/increase in cash and cash equivalents		(16,647	)	21,967		(20,820	)
Effect of exchange rate changes on cash and cash equivalents		(1,829	)	1,268		(2,029	)

		(18,476	)	23,235		(22,849	)
Cash and cash equivalents
Cash and cash equivalents at beginning of year		43,527		20,292		43,141

Cash and cash equivalents at end of year		25,051		43,527		20,292

The accompanying notes are an integral part of these consolidated financial statements.

Shanghai Hutchison Pharmaceuticals Limited
Notes to the Consolidated Financial Statements

Shanghai Hutchison Pharmaceuticals Limited (the "Company") and its subsidiaries (together the "Group") are principally engaged in manufacturing, selling and distribution of prescription drug products. The Group has manufacturing plants in the People's Republic of China (the "PRC") and sells mainly in the PRC.

The Company was incorporated in the PRC on April 30, 2001 as a Chinese-Foreign Equity joint venture. The Company is jointly controlled by Shanghai Hutchison Chinese Medicine (HK) Investment Limited ("SHCM(HK)IL") and Shanghai Traditional Chinese Medicine Co., Ltd ("SHTCML").

These consolidated financial statements are presented in United States dollars ("US$"), unless otherwise stated and have been approved for issue by the Company's Board of Directors on March 11, 2019.

The consolidated financial statements of the Company have been prepared in accordance with International Financial Reporting Standards ("IFRS") and interpretations issued by the IFRS Interpretations Committee applicable to companies reporting under IFRS. The consolidated financial statements comply with IFRS as issued by the International Accounting Standards Board ("IASB"). These consolidated financial statements have been prepared under the historical cost convention.

During the year, the Group has adopted all of the new standards, amendments and interpretations issued by the IASB that are relevant to the Group's operations and mandatory for annual periods beginning January 1, 2018, including IFRS 15 Revenue from Contracts with Customers as described in Note 2(v) below and IFRS 9 Financial Instruments as described in Note 2(l) below. The adoption of these new standards, amendments and interpretations did not have any material effects on the Group's results of operations or financial position.


IAS 1 and IAS 8 (Amendments)⁽²⁾		Definition of Material
IAS 19 (Amendments)⁽¹⁾		Plan Amendment, Curtailment or Settlement
IAS 28 (Amendments)⁽¹⁾		Long-term Interests in Associates and Joint Ventures
IFRS 3 (Amendments)⁽²⁾		Definition of a Business
IFRS 9 (Amendments)⁽¹⁾		Prepayment Features with Negative Compensation
IFRS 16⁽¹⁾		Leases
IFRS 17⁽³⁾		Insurance Contracts
IFRIC 23⁽¹⁾		Uncertainty over Income Tax Treatments
IFRS 10 and IAS 28 (Amendments)⁽⁴⁾		Sale or Contribution of Assets between an Investor and its Associate or Joint Venture
Annual improvement 2015-2017⁽¹⁾		Improvements to IASs and IFRSs

The adoption of standards, amendments and interpretations listed above in future periods is not expected to have any material effects on the Group's results of operations or financial position, except for the adoption of IFRS 16.

The IASB has issued IFRS 16, a new standard for leases which will replace IAS 17. The core principle of IFRS 16 is that a lessee should recognize the assets and liabilities that arise from leases. A lessee should recognize in the statement of financial position a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. The Group will adopt the new standard using the simplified transition approach for fiscal years and interim periods within 2019 and will not restate comparative amounts prior to the date of adoption. Right-of-use assets will be measured on transition as if the new rules had always been applied. As a result, the Group will recognize a gross up to the consolidated statement of financial position on the date of adoption of US$1.0 million and US$0.9 million in right-of-use assets and lease liabilities respectively, primarily related to the Group's various offices under non-cancellable lease agreements that were accounted as operating leases under IAS 17 as at December 31, 2018.

The consolidated financial statements of the Group include the financial statements of the Company and its subsidiaries.

The accounting policies of subsidiaries have been changed where necessary to ensure consistency with the policies adopted by the Group.

Intercompany transactions, balances and unrealized gains on transactions between group companies are eliminated. Unrealized losses are also eliminated unless the transaction provides evidence of an impairment of the transferred asset.

Subsidiaries are all entities over which the Group has control. The Group controls an entity when the Group is exposed to, or has rights, to variable return from its involvement with the entity and has the ability to affect those returns through its power to direct the activities of the entity. In the consolidated financial statements, subsidiaries are accounted for as described in Note 2(a) above.

Subsidiaries are fully consolidated from the date on which control is transferred to the Group. They are de-consolidated from the date that control ceases.

Items included in the financial statements of each of the Group's companies are measured using the currency of the primary economic environment in which the entity operates (the "functional currency"). The functional currency of the Company and its subsidiaries is Renminbi ("RMB") whereas the consolidated financial statements are presented in US$, which is the Company's presentation currency.

Foreign currency transactions are translated into the functional currency using the exchange rates at the dates of the transactions. Foreign currency gains and losses resulting from the settlement of such transactions and from the translation of monetary assets and liabilities denominated in foreign currencies at year end exchange rates are generally recognized in the consolidated income statements.

The financial statements of the Company and its subsidiaries are translated into the Company's presentation currency using the year end rates of exchange for the statement of financial position items and the average rates of exchange for the year for the income statement items. Exchange translation differences are recognized directly in other comprehensive income.

Property, plant and equipment other than construction in progress are stated at historical cost less accumulated depreciation and any accumulated impairment losses. Historical cost includes the purchase price of the asset and any directly attributable costs of bringing the asset to its working condition and location for its intended use.

Subsequent costs are included in the asset's carrying amount or recognized as a separate asset, as appropriate, only when it is probable that future economic benefits associated with the item will flow to the Group and the cost of the item can be measured reliably. All other repairs and maintenance are charged to the consolidated income statements during the financial period in which they are incurred.

Depreciation is calculated using the straight-line method to allocate asset costs less accumulated impairment losses over their estimated useful lives. The principal estimated useful lives are as follows:

The assets' useful lives are reviewed and adjusted, if appropriate, at the end of each reporting period. An asset's carrying amount is written down immediately to its recoverable amount if the asset's carrying amount is greater than its estimated recoverable amount.

Gains and losses on disposals are determined by comparing net sales proceeds with the carrying amount of the relevant assets and are recognized in the consolidated income statements.

Construction in progress represents buildings, plant and machinery under construction and pending installation and is stated at cost less accumulated impairment losses, if any. Cost includes the costs of construction of buildings and the costs of plant and machinery. No provision for depreciation is made on construction-in-progress until such time as the relevant assets are completed and ready for its intended use. When the assets concerned are brought into use, the costs are transferred to property, plant and equipment and depreciated in accordance with the policy as stated in Note 2(d).

Leasehold land is stated at cost less accumulated amortization and accumulated impairment losses, if any. Cost mainly represents consideration paid for the rights to use the land on which various plants and buildings are situated for a period of 50 years from the date the respective right was granted. Amortization of leasehold land is calculated on a straight-line basis over the period of the land use rights.

The Group's other intangible asset represents promotion and marketing rights. Other intangible asset has a definite useful life and is carried at historical cost less accumulated amortization and accumulated impairment losses, if any. Amortization is calculated using the straight-line method to allocate its cost over its estimated useful life of ten years.

Research expenditure is recognized as an expense as incurred. Costs incurred on development projects (relating to the design and testing of new or improved products) are recognized as intangible assets when it is probable that the project will generate future economic benefits by considering its commercial and technological feasibility, and costs can be measured reliably. Other development expenditures are recognized as an expense as incurred. Development costs previously recognized as an expense are not recognized as an asset in a subsequent period. Development costs with a finite useful life that have been capitalized, if any, are amortized on a straight-line basis over the period of expected benefit not exceeding five years. The capitalized development costs are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset exceeds its recoverable amount.

Where the research phase and the development phase of an internal project cannot be clearly distinguished, all expenditure incurred on the project is charged to the consolidated income statements.

Assets that have an indefinite useful life such as goodwill or intangible assets not ready to use are not subject to amortization and are tested for impairment annually. Assets are reviewed for impairment to determine whether there is any indication that the carrying value of these assets may not be recoverable and have suffered an impairment loss. If any such indication exists, the recoverable amount of the asset is estimated in order to determine the extent of the impairment loss, if any. The recoverable amount is the higher of an asset's fair value less costs to sell and value in use. Such impairment loss is recognized in the consolidated income statements.

Non-current assets are classified as held for sale when their carrying amount is to be recovered principally through a sale transaction and a sale is considered highly probable. The non-current assets are stated at the lower of carrying amount and fair value less costs to sell. Property, plant and equipment and leasehold land classified as held for sale are not depreciated and amortized.

Trade and other receivables are recognized initially at fair value, which is the amount of consideration that is unconditional. Trade and other receivables solely represent payments of principal and interest, if any, and the Group holds such financial assets with the objective to collect its contractual cash flows. Therefore, the Group measures them subsequently at amortized cost using the effective interest method, less any provision for impairment after the adoption of IFRS 9. The Group applies the simplified approach to measuring expected credit losses which uses a lifetime expected loss allowance for all trade receivables. To measure the expected credit losses, trade receivables have been grouped based on shared credit risk characteristics and the days past due. All other receivables at amortized cost are considered to have low credit risk, and the loss allowance recognized during the period was therefore limited to 12 months expected losses. The amount of the provision is recognized in the consolidated income statements.

In the consolidated statements of cash flows, cash and cash equivalents include cash on hand, bank deposits and other short-term highly liquid investments with original maturities of three months or less that are readily convertible to known amounts of cash and which are subject to an insignificant risk of changes in value, if any.

Borrowings are recognized initially at fair value, net of transaction costs incurred. Borrowings are subsequently stated at amortized cost; any difference between the proceeds (net of transaction costs) and the redemption value is recognized in the consolidated income statements over the period of the borrowings using the effective interest method.

Financial liabilities and equity instruments issued by the Group are classified according to the substance of the contractual arrangements entered into and the definitions of a financial liability and an equity instrument. Financial liabilities (including trade and other payables) are initially measured at fair value, and are subsequently measured at amortized cost, using the effective interest method. An equity instrument is any contract that does not meet the definition of a financial liability and evidences a residual interest in the assets of the Group after deducting all of its liabilities.

Ordinary shares are classified as equity. Incremental costs, net of tax, directly attributable to the issue of new shares are shown in equity as a deduction from the proceeds.

The current income tax charge is calculated on the basis of the tax laws enacted or substantively enacted at the balance sheet date in the country where the Group operates and generates taxable income. Management periodically evaluates positions taken in tax returns with respect to situations in which applicable tax regulation is subject to interpretation. It establishes provisions where appropriate on the basis of amounts expected to be paid to the tax authorities.

Deferred income tax is recognized, using the liability method, on temporary differences arising between the tax bases of assets and liabilities and their carrying amounts in the consolidated financial statements. However, deferred tax liabilities are not recognized if they arise from the initial recognition of goodwill and the deferred income tax is not accounted for if it arises from initial recognition of an asset or liability in a transaction other than a business combination that at the time of the transaction affects neither accounting nor taxable profit or loss. Deferred income tax is determined using tax rates (and laws) that have been enacted or substantively enacted by the balance sheet date and are expected to apply when the related deferred income tax asset is realized or the deferred income tax liability is settled.

Deferred income tax assets are recognized only to the extent that it is probable that future taxable profit will be available against which the temporary differences can be utilized. Deferred income tax assets and deferred income tax liabilities are offset when there is a legally enforceable right to set off and when the deferred income taxes related to the same fiscal authority.

Deferred income tax liabilities are provided on taxable temporary differences arising from investments in subsidiaries, except for deferred income tax liabilities where the timing of the reversal of the temporary difference is controlled by the Group and it is probable that the temporary difference will not reverse in the foreseeable future.

Deferred income tax assets are recognized on deductible temporary differences arising from investments in subsidiaries, only to the extent that it is probable the temporary difference will reverse in the future and there is sufficient taxable profit available against which the temporary difference can be utilized.

The employees of the Group participate in defined contribution retirement benefit plans managed by the relevant municipal and provincial governments in the PRC. The assets of these plans are held separately from those of the Group. The Group is required to make monthly contributions to the plans calculated as a percentage of the employees' salaries. The municipal and provincial governments undertake to assume the retirement benefit obligations to all existing and future retired employees under the plans described above. Other than the monthly contributions, the Group has no further obligations for the payment of the retirement and other post-retirement benefits of its employees.

Provisions are recognized when the Group has a present legal or constructive obligation as a result of past events, it is probable that an outflow of resources will be required to settle the obligation, and the amount has been reliably estimated. Provisions are not recognized for future operating losses.

Leases in which a significant portion of the risks and rewards of ownership are retained by the lessor are classified as operating leases. Payments made under operating leases are charged to the consolidated income statements on a straight-line basis over the period of the leases.

Borrowing costs directly attributable to the acquisition, construction or production of qualifying assets, which are assets that necessarily take a substantial period of time to get ready for their intended use or sale, are added to the cost of those assets, until such time as the assets are substantially ready for their intended use or sale. All other borrowing costs are recognized in the consolidated income statements in the period in which they are incurred.

Incentives from government are recognized at their fair values where there is a reasonable assurance that the incentives will be received and all attached conditions will be complied with.

Government incentives relating to costs are deferred and recognized in the consolidated income statements over the period necessary to match them with the costs that they are intended to compensate.

Government grants relating to property, plant and equipment are included in non-current liabilities as deferred income and credited to the consolidated income statements on a straight-line basis over the expected lives of the related assets.

The Group applied IFRS 15 to all contracts at the date of initial application of January 1, 2018 using the modified retrospective method. For sales of goods, the Group applied a portfolio approach to aggregate contracts into portfolios whose performance obligations do not differ materially from each other. In its assessment of each portfolio, the Group assessed the contracts under the new five-step model under IFRS 15 and determined there was no significant impact to the timing or amount of revenue recognition under the new guidance. The Group has updated its accounting policy for revenue recognition as detailed below.

The Group principally generates revenue from sales of goods. Revenue from sales of goods is recognized when the customer takes possession of the goods. This usually occurs upon completed delivery of the goods to the customer site. The amount of revenue recognized is adjusted for expected sales incentives as stipulated in the contract, which are generally issued to customers as direct discounts at the point-of-sale or indirectly in the form of rebates. Sales incentives are estimated using the expected value method. Additionally, sales are generally made with a limited right of return under certain conditions. Revenues are recorded net of provisions for sales discounts and returns.

Revenue from provision of services is recognized when the benefits of the services transfer to the customer over time, which is based on the proportionate value of services rendered as determined under the terms of the relevant contract. Additionally, when the amounts that can be invoiced correspond directly with the value to the customer for performance completed to date, the Group recognizes revenue from provision of services based on amounts that can be invoiced to the customer.

Payments in advance from customers are deferred if consideration is received in advance of transferring control of the goods or rendering of services. Accounts receivable is recognized if the Group has an unconditional right to bill the customer, which is generally when the customer takes possession of the goods or services are rendered. Payment terms differ by subsidiary and customer, but generally range from 45 to 180 days from the invoice date.

Revenue comprises the fair value of the consideration received and receivable for the sales of goods in the ordinary course of the Group's activities. The Group recognizes revenue when the amount of revenue can be reliably measured; when it is probable that future economic benefits will flow to the entity; and when specific criteria have been met for each of the Group's activities, as described below.

Revenue is shown net of value-added tax, returns, volume rebates and discounts after eliminating sales within the Group. Revenue and income are recognized as follows:

Sales of goods are recognized when a group entity has delivered products to the customer, the customer has accepted the products and collectability of the related receivables is reasonably assured.

Certain sales rebates are provided to customers when their business performance for an agreed period within the year and the whole year meets certain criteria. Sales rebates are recognized in profit or loss based on management's estimation at each year end.

Interest income is recognized on a time-proportion basis using the effective interest method.

Operating segments are reported in a manner consistent with the internal reporting provided to the chief operating decision makers. The Company's Board of Directors, which is responsible for allocating resources and assessing performance of the operating segments, has been identified as the steering committee that makes strategic decisions.

In accordance with the laws applicable to Foreign Investment Enterprises established in the PRC, the Company makes appropriations to certain non-distributable reserve funds including the general reserve fund, the enterprise expansion fund and the staff bonus and welfare fund. The amount of appropriations to these funds are made at the discretion of the Company's Board of Directors.

The Group's activities expose it to a variety of financial risks, including credit risk, cash flow interest rate risk and liquidity risk. The Group does not use any derivative financial instruments for speculative purposes.

The carrying amounts of cash and cash equivalents, trade receivables (including bills receivables) and other receivables included in the consolidated statements of financial position represent the Group's maximum exposure to credit risk of the counterparty in relation to its financial assets.

Substantially all of the Group's cash and cash equivalents are deposited in major financial institutions, which management believes are of high credit quality. The Group has a practice to limit the amount of credit exposure to any financial institution.

Bills receivables are mostly settled by state-owned banks or other reputable banks and therefore the management considers that they will not expose the Group to any significant credit risk.

The Group has no significant concentrations of credit risk. The Group has policies in place to ensure that the sales of products are made to customers with appropriate credit history and the Group performs periodic credit evaluations of its customers.

Management periodically assesses the recoverability of trade receivables and other receivables. The Group's historical loss rates are adjusted to reflect current and forward-looking information on specific factors affecting the ability of the customers to settle the receivables, and historical experience collecting receivables falls within the recorded allowances.

As at December 31, 2018 and 2017, the Group has no significant interest-bearing assets except cash and cash equivalents, details of which have been disclosed in Note 11, and no interest-bearing bank borrowings.

Prudent liquidity management implies maintaining sufficient cash and cash equivalents and the availability of funding when necessary. The Group's policy is to regularly monitor current and expected liquidity requirements to ensure that it maintains sufficient cash balances and adequate credit facilities to meet its liquidity requirements in the short and long term.

As at December 31, 2018 and 2017, the Group's current financial liabilities were mainly due for settlement within twelve months and the Group expects to meet all liquidity requirements.

The Group's objectives when managing capital are to safeguard the Group's ability to provide returns for shareholders and benefits for other stakeholders and to maintain an optimal capital structure to reduce the cost of capital.

The Group regularly reviews and manages its capital structure to ensure an optimal balance between higher shareholders' return that might be possible with higher levels of borrowings and the advantages and security afforded by a sound capital position, and makes adjustments to the capital structure in light of changes in economic conditions.

The Group monitors capital on the basis of the liabilities to assets ratio. This ratio is calculated as total liabilities divided by total assets as shown on the consolidated statements of financial position.

Currently, it is the Group's strategy to maintain a reasonable liabilities to assets ratio. The liabilities to assets ratio as at December 31, 2018 and 2017 was as follows:

The Group does not have any financial assets or liabilities which are carried at fair value. The carrying amounts of the Group's current financial assets, including cash and cash equivalents, trade and bills receivables, and other receivables and current financial liabilities, including trade payables and other payables and accruals approximate their fair values due to their short-term maturities. The carrying amounts of the Group's financial instruments carried at cost or amortized cost are not materially different from their fair values.

The face values less any estimated credit adjustments for financial assets and liabilities with a maturity of less than one year are assumed to approximate their fair values. The fair value of financial liabilities for disclosure purposes is estimated by discounting the future contractual cash flows at the current market interest rate that is available to the Group for similar financial instruments.

Note 2 includes a summary of the significant accounting policies used in the preparation of the consolidated financial statements. The preparation of consolidated financial statements often requires the use of judgements to select specific accounting methods and policies from several acceptable alternatives. Furthermore, significant estimates and assumptions concerning the future may be required in selecting and applying those methods and policies in the consolidated financial statements. The Group bases its estimates and judgements on historical experience and various other assumptions that it believes are reasonable under the circumstances. Actual results may differ from these estimates and judgements under different assumptions or conditions.

The following is a review of the more significant assumptions and estimates, as well as the accounting policies and methods used in the preparation of the consolidated financial statements.

Certain sales rebates are provided to customers when their business performance for an agreed period within the year and the whole year meets certain criteria as stipulated in the contracts. Sales rebates are considered variable consideration and the estimate of sales rebates during the year is based on estimated sales transactions for the entire period stipulated and is subject to change based on actual performance and collection status.

The Group has made substantial investments in property, plant and equipment. Changes in technology or changes in the intended use of these assets may cause the estimated period of use or value of these assets to change.

Deferred tax is recognized using the liability method on temporary differences arising between the tax bases of assets and liabilities against which the deductible temporary differences and the carry forward of unused tax losses and tax credits can be utilized. Deferred income tax assets are recognized only to the extent that it is probable that future taxable profit will be available against which the temporary differences can be utilized. Where the final outcomes are different from the estimations, such differences will impact the carrying amount of deferred tax in the period in which such determination is made.

On October 20, 2016, the Group completed the disposal of assets classified as held for sale, including leasehold land and property, plant and equipment, to the municipal government. 90% of the consideration had been collected as of December 31, 2016, and the remaining 10% was collected in February 2017. The gain of US$88.5 million representing the consideration less the assets classified as held for sale was recognized in full on the disposal date. The Group determined that the whole transaction had been completed on October 20, 2016 since the risk and rewards of ownership of the land had been passed to the municipal government, no additional costs were expected to be incurred and there was no receivable recoverability risk.

Management has reviewed the Group's internal reporting in order to assess performance and allocate resources, and has determined that the Group has two reportable operating segments as follows:

—Distribution business—provision of sales, distribution and marketing services to pharmaceutical manufacturers

The operating segments are strategic business units that offer different products and services. They are managed separately because each business requires different technology and marketing approaches. The performance of each of the reportable segments is assessed based on a measure of earnings or losses before interest income, finance costs and taxation charge ("Adjusted EBIT" or "Adjusted EBIT/(LBIT)"). The aggregate amount of operating profit/(loss) for the two operating segments is the same as profit before taxation in the consolidated income statements for each of the years presented.

Revenue from external customers is after elimination of inter-segment sales. The amount eliminated was US$82.8 million for 2018 (2017: US$67.4 million; 2016: US$25.6 million). Sales between segments are carried out at mutually agreed terms. Revenue from external customers from the manufacturing business is for sales of goods which are recognized at a point in time. Revenue from external customers from the distribution business is for provision of services which are recognized over time.

The Company's prior manufacturing facilities and factory site ("the Site") was located in Putuo District, Shanghai, an area of Shanghai 12 kilometers from the city centre. The area was re-zoned in 2014 from industrial usage into a new science and technology, commercial and residential development area called Smart City.

On December 9, 2015, the Company entered into an agreement ("the Agreement") with the relevant Shanghai government authorities for the surrender of its then remaining 36 years land-use right in respect of the Site. Under the Agreement, the Company received cash compensation in three installments. As at December 31, 2015, the Company received the first installment of approximately US$ 31.1 million of the compensation (which was equivalent to approximately US$29.9 million in October 2016 based on the prevailing exchange rate at that time).

In October 2016, the Company completed the surrender of the Site and received the second installment of US$59.7 million. Upon the disposal of the non-current assets classified as held for sales, the Company derecognized the carrying values of the non-current assets classified as held for sales amounted to approximately US$10.1 million, and recognized a gain of US$88.5 million after deducting the costs of US$0.9 million. The remaining US$9.7 million final installment (which was equivalent to US$9.9 million in October 2016 based on the prevailing exchange rate at that time) was recorded as a current asset as at December 31, 2016. In February 2017, the Company received the final installment of the land compensation (which was equivalent to US$9.8 million based on the prevailing exchange rate at that time).

	Year Ended December 31,

	2018	2017	2016
	(in US$'000)
Cost of inventories recognized as expense	53,837	45,683	47,047
Depreciation of property, plant and equipment	7,109	6,556	3,135
Impairment of property, plant and equipment	—	—	1,174
Loss on disposal of property, plant and equipment	26	2	179
Amortization of leasehold land	168	164	166
Amortization of other intangible asset	228	222	225
Operating lease rentals in respect of land and buildings	764	856	737
Reversal of provision for trade receivables	—	—	(81	)
Provision for excess and obsolete inventories	79	994	1,236
Research and development expense	2,158	3,414	1,753
Auditor's remuneration	173	163	138
Employee benefit expenses (Note 10)	85,943	70,401	61,092

The taxation charge on the Group's profit before taxation differs from the theoretical amount that would arise using the Group's weighted average tax rate as follows:

The weighted average tax rate calculated at the statutory tax rates of respective companies for the year was 25% (2017: 25%; 2016: 25%). The effective tax rate for the year was 13.6% (2017: 16.4%; 2016: 18.7%).

Employee benefit expenses of approximately US$23.2 million (2017: US$14.3 million; 2016: US$13.5 million) are included in cost of sales.

The cash and cash equivalents denominated in RMB were deposited with banks in the PRC. The conversion of these RMB denominated balances into foreign currencies is subject to the rules and regulations of foreign exchange control promulgated by the PRC government.

All trade and bills receivables are denominated in RMB and are due within one year from the end of the reporting period. The carrying values of trade and bills receivables approximate their fair values due to their short-term maturities.

	Buildings situated in the PRC		Leasehold improvements		Plant and equipment		Furniture and fixtures, other equipment and motor vehicles		Construction in progress		Total

	(in US$'000)
Cost
As at January 1, 2018	72,070		501		23,158		7,574		2,415		105,718
Additions	114		—		516		770		1,738		3,138
Disposals	—		—		(104	)	(269	)	—		(373	)
Transfers	293		—		—		204		(497	)	—
Exchange differences	(3,043	)	(21	)	(987	)	(345	)	(148	)	(4,544	)

As at December 31, 2018	69,434		480		22,583		7,934		3,508		103,939

Accumulated depreciation and impairment
As at January 1, 2018	4,763		206		4,870		3,949		1,196		14,984
Depreciation	3,603		107		2,267		1,132		—		7,109
Disposals	—		—		(67	)	(267	)	—		(334	)
Exchange differences	(331	)	(13	)	(284	)	(200	)	(50	)	(878	)

As at December 31, 2018	8,035		300		6,786		4,614		1,146		20,881

Net book value
As at December 31, 2018	61,399		180		15,797		3,320		2,362		83,058

	Buildings situated in the PRC	Leasehold improvements	Plant and equipment		Furniture and fixtures, other equipment and motor vehicles		Construction in progress		Total

	(in US$'000)
Cost
As at January 1, 2017	67,221	315	20,003		6,213		2,606		96,358
Additions	26	162	541		1,133		1,610		3,472
Disposals	—	—	(8	)	(174	)	—		(182	)
Transfers	603	—	1,316		(15	)	(1,904	)	—
Exchange differences	4,220	24	1,306		417		103		6,070

As at December 31, 2017	72,070	501	23,158		7,574		2,415		105,718

Accumulated depreciation and impairment
As at January 1, 2017	1,120	134	2,613		2,927		1,174		7,968
Depreciation	3,468	62	2,038		988		—		6,556
Disposals	—	—	(6	)	(174	)	—		(180	)
Exchange differences	175	10	225		208		22		640

As at December 31, 2017	4,763	206	4,870		3,949		1,196		14,984

Net book value
As at December 31, 2017	67,307	295	18,288		3,625		1,219		90,734

	Buildings situated in the PRC		Leasehold improvements		Plant and equipment		Furniture and fixtures, other equipment and motor vehicles		Construction in progress		Total

	(in US$'000)
Cost
As at January 1, 2016	—		318		1,403		3,925		82,837		88,483
Additions	—		15		349		801		10,774		11,939
Disposals	—		(177	)	(293	)	(234	)	(120	)	(824	)
Transfers	70,222		179		16,553		1,817		(88,771	)	—
Transfer from non-current assets classified as held for sale	—		1		2,794		266		—		3,061
Exchange differences	(3,001	)	(21	)	(803	)	(362	)	(2,114	)	(6,301	)

As at December 31, 2016	67,221		315		20,003		6,213		2,606		96,358

Accumulated depreciation and impairment
As at January 1, 2016	—		279		898		2,515		—		3,692
Depreciation	1,168		45		1,251		671		—		3,135
Disposals	—		(177	)	(246	)	(218	)	—		(641	)
Impairment	—		—		—		—		1,174		1,174
Transfer from non-current assets classified as held for sale	—		—		810		145		—		955
Exchange differences	(48	)	(13	)	(100	)	(186	)	—		(347	)

As at December 31, 2016	1,120		134		2,613		2,927		1,174		7,968

Net book value
As at December 31, 2016	66,101		181		17,390		3,286		1,432		88,390

During the year ended December 31, 2018, finance cost from bank borrowings of nil (2017: nil; 2016: US$0.6 million) was capitalized.

Construction in progress in 2016 mainly related to the factory in Fengpu District, Shanghai. In September 2016, the factory was put into operation.

During the year ended December 31, 2018, the Group recognized US$2.8 million deferred tax assets on temporary differences arising from advertising and promotion expenditures already incurred which are deductible against future taxable income.

The Group's deferred tax assets are mainly temporary differences including accrued expenses, provisions and deferred income. The potential deferred tax assets in respect of tax losses which have not been recognized in the consolidated financial statements were approximately US$3.0 million (2017: US$1.3 million).

These unrecognized tax losses can be carried forward against future taxable income and will expire in the following years:

All trade payables are denominated in RMB and due within one year from the end of the reporting period. The carrying value of trade payables approximates their fair values due to their short-term maturities.

(a) Reconciliation of profit for the year to net cash generated from operations:

	Year Ended December 31,

	2018		2017		2016
	(in US$'000)
Profit for the year	59,767		55,623		120,499
Adjustments to reconcile profit for the year to net cash generated from operations
Taxation charge	9,371		10,874		27,645
Interest income	(673	)	(757	)	(565	)
Gain on disposal of assets held for sale	—		—		(88,536	)
Depreciation on property, plant and equipment	7,109		6,556		3,135
Loss on disposal of property, plant and equipment	26		2		179
Impairment of property, plant and equipment	—		—		1,174
Amortization of leasehold land	168		164		166
Amortization of other intangible asset	228		222		225
Movements on the provision for trade receivables	—		—		(81	)
Provision for excess and obsolete inventories	79		994		1,236
Exchange differences	(568	)	1,377		186
Changes in working capital:
Trade and bills receivables	(9,389	)	1,273		(463	)
Other receivables, prepayments and deposits	(216	)	(1,057	)	922
Inventories	(3,892	)	(14,257	)	(8,395	)
Trade payables	(4,601	)	3,794		3,572
Other payables, accruals and advance receipts	(1,003	)	13,574		3,740
Deferred income	(1,707	)	121		(329	)

Total changes in working capital	(20,808	)	3,448		(953	)

Net cash generated from operations	54,699		78,503		64,310

During the years ended December 31, 2018 and 2017, there was a decrease in accruals made for purchases of property, plant and equipment of US$2.0 million and US$4.2 million respectively.

Capital commitments for property, plant and equipment are mainly for improvements to the Group's plant.

The Group leases various offices under non-cancellable operating lease agreements. The future aggregate minimum lease payments in respect of non-cancellable operating leases were as follows:

The Group has the following significant transactions during the years with related parties which were carried out in the normal course of business at terms determined and agreed by the relevant parties:

	Year Ended December 31,

	2018	2017	2016
	(in US$'000)
Sales of goods to:
—A fellow subsidiary of SHTCML	10,987	27,471	26,044
—A fellow subsidiary of SHCM(HK)IL	2,071	—	—

	13,058	27,471	26,044



Purchase of goods from:
—Fellow subsidiaries of SHTCML	12,219	16,469	17,792



Rendering of marketing services from:
—A fellow subsidiary of SHTCML	—	—	223



Rendering of research and development services from:
—A fellow subsidiary of SHCM(HK)IL	859	789	315



Provision of marketing services to:
—A fellow subsidiary of SHTCML	5,917	—	—
—A fellow subsidiary of SHCM(HK)IL	12,703	10,195	8,401

	18,620	10,195	8,401

No transactions have been entered into with the directors of the Company (being the key management personnel) during the year ended December 31, 2018 (2017 and 2016: nil).

Balances with related parties are unsecured, interest-free and repayable on demand. The carrying values of balances with related parties approximate their fair values due to their short-term maturities.

The Group evaluated subsequent events through March 11, 2019, which is the date when the consolidated financial statements were issued.

To the Board of Directors and Shareholders of Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine Company Limited

We have audited the accompanying consolidated financial statements of Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine Company Limited and its subsidiaries, which comprise the consolidated statements of financial position as of December 31, 2018 and 2017, and the related consolidated income statements, consolidated statements of comprehensive income, of changes in equity and of cash flows for each of the three years in the period ended December 31, 2018.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine Company Limited and its subsidiaries as of December 31, 2018 and 2017, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2018 in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board.

/s/ PricewaterhouseCoopers Zhong Tian LLP
Guangzhou, the People's Republic of China
March 11, 2019

Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine Company Limited
Consolidated Income Statements
(in US$'000)

			Year Ended December 31,

	Note		2018		2017		2016
Revenue		5	215,838		227,422		224,131
Cost of sales			(102,701	)	(135,964	)	(134,776	)

Gross profit			113,137		91,458		89,355
Selling expenses			(70,501	)	(45,262	)	(46,873	)
Administrative expenses			(25,997	)	(24,541	)	(21,716	)
Other net operating income		6	4,085		3,000		3,097

Operating profit		7	20,724		24,655		23,863
Share of profits of joint venture and associated companies, net of tax			131		65		19
Finance costs			(152	)	(117	)	(123	)
Loss on divestment of a subsidiary		14	—		(169	)	—

Profit before taxation			20,703		24,434		23,759
Taxation charge		8	(4,227	)	(3,629	)	(3,631	)

Profit for the year			16,476		20,805		20,128



Attributable to:
Shareholders of the Company			16,860		20,776		20,376
Non-controlling interests			(384	)	29		(248	)

			16,476		20,805		20,128

The accompanying notes are an integral part of these consolidated financial statements.

Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine Company Limited
Consolidated Statements of Comprehensive Income
(in US$'000)

The accompanying notes are an integral part of these consolidated financial statements.

Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine Company Limited
Consolidated Statements of Financial Position
(in US$'000)

		December 31,

	Note	2018	2017
Assets
Current assets
Cash and cash equivalents	10	16,843	13,843
Trade and bills receivables	11	46,679	36,368
Other receivables, prepayments and deposits	12	5,707	6,936
Inventories	13	46,791	44,423

Total current assets		116,020	101,570
Property, plant and equipment	15	65,933	70,817
Leasehold land		9,739	10,424
Goodwill		8,384	8,751
Other intangible assets		2,434	2,906
Investments in a joint venture and associated companies		578	473
Deferred tax assets	16	2,095	2,489
Other non-current assets	17	11,190	11,366

Total assets		216,373	208,796



Liabilities and shareholders' equity
Current liabilities
Trade payables	18	15,664	15,545
Other payables, accruals and advance receipts	19	56,926	59,015
Current tax liabilities		1,384	1,227

Total current liabilities		73,974	75,787
Deferred tax liabilities	16	109	114
Deferred income	20	16,926	18,248
Finance lease payables		267	386

Total liabilities		91,276	94,535

Company's shareholders' equity
Share capital		24,103	24,103
Reserves		97,881	86,513

Total Company's shareholders' equity		121,984	110,616
Non-controlling interests		3,113	3,645

Total shareholders' equity		125,097	114,261

Total liabilities and shareholder's equity		216,373	208,796

The accompanying notes are an integral part of these consolidated financial statements.

Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine Company Limited
Consolidated Statements of Changes in Equity
(in US$'000)

	Attributable to shareholders of the Company

	Share capital	Exchange reserve		General reserves	Retained earnings		Total		Non- controlling interests		Total equity
As at January 1, 2016	24,103	7,643		131	89,646		121,523		3,540		125,063
Profit/(loss) for the year	—	—		—	20,376		20,376		(248	)	20,128
Other comprehensive loss
Exchange translation differences	—	(8,827	)	—	—		(8,827	)	(421	)	(9,248	)

Total comprehensive (loss)/income	—	(8,827	)	—	20,376		11,549		(669	)	10,880

Dividends declared to shareholders	—	—		—	(6,000	)	(6,000	)	—		(6,000	)
Dividend declared to a non-controlling shareholder of a subsidiary	—	—		—	—		—		(174	)	(174	)
Capital contribution from a non-controlling shareholder of a subsidiary	—	—		—	—		—		3,600		3,600

As at December 31, 2016	24,103	(1,184	)	131	104,022		127,072		6,297		133,369



Profit for the year	—	—		—	20,776		20,776		29		20,805
Other comprehensive income
Exchange translation differences	—	7,896		—	—		7,896		397		8,293

Total comprehensive income	—	7,896		—	20,776		28,672		426		29,098

Dividends declared to shareholders	—	—		—	(45,128	)	(45,128	)	—		(45,128	)
Divestment of a subsidiary	—	—		—	—		—		(3,078	)	(3,078	)

As at December 31, 2017	24,103	6,712		131	79,670		110,616		3,645		114,261



Profit/(loss) for the year	—	—		—	16,860		16,860		(384	)	16,476
Other comprehensive loss
Exchange translation differences	—	(5,492	)	—	—		(5,492	)	(148	)	(5,640	)

Total comprehensive (loss)/income	—	(5,492	)	—	16,860		11,368		(532	)	10,836

As at December 31, 2018	24,103	1,220		131	96,530		121,984		3,113		125,097

The accompanying notes are an integral part of these consolidated financial statements.

Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine Company Limited
Consolidated Statements of Cash Flows
(in US$'000)

		Year Ended December 31,

	Note	2018		2017		2016
Operating activities
Net cash generated from operations	21(a)	29,174		24,844		16,426
Interest received		81		220		238
Finance costs paid		(152	)	(117	)	(412	)
Income tax paid		(3,729	)	(4,040	)	(4,159	)

Net cash generated from operating activities		25,374		20,907		12,093

Investing activities
Purchase of property, plant and equipment		(5,387	)	(7,236	)	(13,219	)
Deposits in bank deposits maturing over three months		—		—		(1,466	)
Proceeds from bank deposits maturing over three months		—		1,780		53
Government grants received relating to property, plant and equipment		1,198		660		3,733
Proceeds from divestment of a subsidiary, net of cash held	14	—		2,641		—

Net cash used in investing activities		(4,189	)	(2,155	)	(10,899	)

Financing activities
Dividends paid to shareholders		(15,077	)	(29,872	)	(6,000	)
Finance lease payments		(103	)	(93	)	—
Repayment of advances from shareholder	23(b)	(2,423	)	—		—
Repayment of bank borrowings		—		—		(923	)

Net cash used in financing activities		(17,603	)	(29,965	)	(6,923	)

Net increase/(decrease) in cash and cash equivalents		3,582		(11,213	)	(5,729	)
Effect of exchange rate changes on cash and cash equivalents		(582	)	1,474		(1,844	)

		3,000		(9,739	)	(7,573	)
Cash and cash equivalents
Cash and cash equivalents at beginning of year		13,843		23,582		31,155

Cash and cash equivalents at end of year		16,843		13,843		23,582

The accompanying notes are an integral part of these consolidated financial statements.

Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine Company Limited
Notes to the Consolidated Financial Statements

Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine Company Limited (the "Company") and its subsidiaries (together the "Group") are principally engaged in manufacturing, selling and distribution of over-the-counter drug products. The Group has manufacturing plants in the People's Republic of China (the "PRC") and sells mainly in the PRC.

The Company was incorporated in the PRC on April 12, 2005 as a Chinese-Foreign Equity joint venture. The Company is jointly controlled by Guangzhou Hutchison Chinese Medicine (HK) Investment Limited ("GZHCMHK") and Guangzhou Baiyunshan Pharmaceutical Holdings Company Limited ("GBPHCL").

These consolidated financial statements are presented in United States dollars ("US$"), unless otherwise stated and have been approved for issue by the Company's Board of Directors on March 11, 2019.

During the year, the Group has adopted all of the new standards, amendments and interpretations issued by the IASB that are relevant to the Group's operations and mandatory for annual periods beginning January 1, 2018, including IFRS 15 Revenue from Contracts with Customers as described in Note 2(z) below and IFRS 9 Financial Instruments as described in Note 2(p) below. The adoption of these new standards, amendments and interpretations did not have any material effects on the Group's results of operations or financial position.

The following standards, amendments and interpretations were in issue but not yet effective for the financial year ended December 31, 2018 and have not been early adopted by the Group:


IAS 1 and IAS 8 (Amendments)⁽²⁾		Definition of Material
IAS 19 (Amendments)⁽¹⁾		Plan Amendment, Curtailment or Settlement
IAS 28 (Amendments)⁽¹⁾		Long-term Interests in Associates and Joint Ventures
IFRS 3 (Amendments)⁽²⁾		Definition of a Business
IFRS 9 (Amendments)⁽¹⁾		Prepayment Features with Negative Compensation
IFRS 16⁽¹⁾		Leases
IFRS 17⁽³⁾		Insurance Contracts
IFRIC 23⁽¹⁾		Uncertainty over Income Tax Treatments
IFRS 10 and IAS 28 (Amendments)⁽³⁾		Sale or Contribution of Assets between an Investor and its Associate or Joint Venture
Annual improvement 2015-2017⁽¹⁾		Improvements to IASs and IFRSs

The adoption of standards, amendments and interpretations listed above in future periods is not expected to have any material effects on the Group's results of operations and financial position, except for the adoption of IFRS 16.

The IASB has issued IFRS 16, a new standard for leases which will replace IAS 17. The core principle of IFRS 16 is that a lessee should recognize the assets and liabilities that arise from leases. A lessee should recognize on the statement of financial position a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. The Group will adopt the new standard using the simplified transition approach for fiscal years and interim periods within 2019 and will not restate comparative amounts prior to the date of adoption. Right-of-use assets will be measured on transition as if the new rules had always been applied. As a result, the Group will recognize a gross up to the consolidated statement of financial position on the date of adoption of US$0.6 million and US$0.6 million in right-of-use assets and lease liabilities respectively, primarily related to the Group's various warehouses under non-cancellable lease agreements that were accounted as operating leases under IAS 17 as at December 31, 2018.

The consolidated financial statements of the Group include the financial statements of the Company and its subsidiaries, and also include the Group's interests in a joint venture and associated companies on the basis set out in Notes 2(d) and 2(e) below.

The accounting policies of subsidiaries, the joint venture and associated companies have been changed where necessary to ensure consistency with the policies adopted by the Group.

Non-controlling interests represent the interests of outside shareholders in the operating results and net assets of subsidiaries.

Subsidiaries are all entities over which the Group has control. The Group controls an entity when the Group is exposed, or has rights, to variable returns from its involvement with the entity and has the ability to affect those returns through its power to direct the activities of the entity. In the consolidated financial statements, subsidiaries are accounted for as described in Note 2(a) above.

Subsidiaries are fully consolidated from the date on which control is transferred to the Group. They are de-consolidated from the date that control ceases.

Transactions with non-controlling interests that do not result in a loss of control are accounted for as transactions with equity owners of the Group. For purchases from non-controlling interests, the difference between any consideration paid and the relevant share acquired of the carrying value of net assets of the subsidiary is recorded in equity. Gains or losses on disposals to non-controlling interests are also recorded in equity.

Investments in joint arrangements are classified either as joint operations or joint ventures depending on the contractual rights and obligations of each investor. The Group has assessed the nature of its joint arrangement and determined it to be a joint venture. The joint venture is accounted for using the equity method.

Under the equity method of accounting, the interest in joint venture is initially recognized at cost and adjusted thereafter to recognize the Group's share of the post-acquisition profits or losses and movements in other comprehensive income. The Group determines at each reporting date whether there is any objective evidence that the investment in the joint venture is impaired. If this is the case, the Group calculates the amount of impairment as the difference between the recoverable amount of the joint venture and its carrying value and recognizes the amount in the consolidated income statements.

An associate is an entity, other than a subsidiary or a joint venture, in which the Group has a long-term equity interest and over which the Group is in position to exercise significant influence over its management, including participation in the financial and operating policy decisions.

The results and net assets of associates are incorporated in these financial statements using the equity method of accounting, except when the investment is classified as held for sale, in which case it is accounted for under IFRS 5, Non-current assets held for sale and discontinued operations. The total carrying amount of such investments is reduced to recognize any identified impairment loss in the value of individual investments.

Items included in the financial statements of each of the Group's companies are measured using the currency of the primary economic environment in which the entity operates (the "functional currency"). The functional currency of the Company and its subsidiaries, joint venture and associated companies is Renminbi ("RMB") whereas the consolidated financial statements are presented in US$, which is the Company's presentation currency.

The financial statements of the Company, subsidiaries, joint venture and associated companies are translated into the Company's presentation currency using the year end rates of exchange for the statements of financial position items and the average rates of exchange for the year for the income statement items. Exchange translation differences are recognized directly in other comprehensive (loss)/income.

Group and the cost of the item can be measured reliably. All other repairs and maintenance are charged to the consolidated income statements during the financial period in which they are incurred.

Gains and losses on disposals are determined by comparing net sales proceeds with the carrying amount of the relevant assets and are recognized in the consolidated income statements.

Construction in progress represents buildings, plant and machinery under construction and pending installation and is stated at cost less accumulated impairment losses, if any. Cost includes the costs of construction of buildings and the costs of plant and machinery. No provision for depreciation is made on construction in progress until such time as the relevant assets are completed and ready for its intended use. When the assets concerned are brought into use, the costs are transferred to property, plant and equipment and depreciated in accordance with the policy as stated in Note 2(g).

Goodwill represents the excess of the cost of an acquisition over the fair value of the Group's share of the net identifiable assets of the acquired subsidiary/business at the date of acquisition, or the excess of fair value of business over its fair value of the net identifiable assets injected into the Company upon its formation. If the cost of acquisition is less than the fair value of the Group's share of the net identifiable assets of the acquired subsidiary, the difference is recognized directly in the consolidated income statements.

Goodwill is retained at the carrying amount as a separate asset, and subject to impairment test annually when there are indications that the carrying value may not be recoverable.

The profit or loss on disposal of a subsidiary is calculated by reference to the net assets at the date of disposal including the attributable amount of goodwill.

The Group's other intangible assets mainly include distribution network and drugs licenses contributed from non-controlling shareholders. Other intangible assets have a definite useful life and are carried at historical cost less accumulated amortization and accumulated impairment losses, if any. Amortization is calculated using the straight-line method to allocate costs over the estimated useful lives of ten years.

Where the research phase and the development phase of an internal project cannot be clearly distinguished, all expenditure incurred on the project is charged to the consolidated income statements.

Non-current assets (or disposal groups) are classified as held for sale when their carrying amount is to be recovered principally through a sale transaction and a sale is considered highly probable. The non-current assets (or disposal groups) except for certain assets as explained below, are stated at the lower of carrying amount and fair value less costs to sell. Deferred tax assets, and financial assets (other than investments in subsidiaries and associates), which are classified as held for sale, would continue to be measured in accordance with the policies set out elsewhere in Note 2.

Trade and other receivables are recognized initially at fair value, which is the amount of consideration that is unconditional. Trade and other receivables solely represent payments of principal and interest, if any, and the Group holds such financial assets with the objective to collect its contractual cash flows. Therefore, the Group measures them subsequently at amortized cost using the effective interest method, less any provision for impairment after the adoption of IFRS 9. The Group applies the IFRS 9 simplified approach to measuring expected credit losses which uses a lifetime expected loss allowance for all trade receivables. To measure the expected credit losses, trade receivables have been grouped based on shared credit risk characteristics and the days past due. All other receivables at amortized cost are considered to have low credit risk, and the loss allowance recognized during the period was therefore limited to 12 months expected losses. The amount of the provision is recognized in the consolidated income statements.

Financial liabilities and equity instruments issued by the Group are classified according to the substance of the contractual arrangements entered into and the definitions of a financial liability and an equity instrument. Financial liabilities (including trade and other payables) are initially measured at fair value, and are subsequently measured at amortized cost, using the effective interest method. An equity instrument is any contract that does not meet the definition of financial liability and evidences a residual interest in the assets of the Group after deducting all of its liabilities.

Ordinary shares are classified as equity. Incremental costs, net of tax, directly attributable to the issue of new shares are shown in equity as a deduction from the proceeds.

Deferred income tax is recognized, using the liability method, on temporary differences arising between the tax bases of assets and liabilities and their carrying amounts in the consolidated financial statements. However, deferred tax liabilities are not recognized if they arise from the initial recognition of goodwill and deferred income tax is not accounted for if it arises from initial recognition of an asset or liability in a transaction other than a business combination that at the time of the transaction affects neither accounting nor taxable profit or loss. Deferred income tax is determined using tax rates (and laws) that have been enacted or substantively enacted by the balance sheet date and are expected to apply when the related deferred income tax asset is realized or the deferred income tax liability is settled.

Deferred income tax liabilities are provided on taxable temporary differences arising from investments in subsidiaries, associates and joint arrangements, except for deferred income tax liabilities where the timing of the reversal of the temporary difference is controlled by the Group and it is probable that the temporary difference will not reverse in the foreseeable future. Generally the Group is unable to control the reversal of the temporary difference for associates. Only when there is an agreement in place that gives the Group the ability to control the reversal of the temporary difference in the foreseeable future, deferred tax liability in relation to taxable temporary differences arising from the associate's undistributed profits is not recognized.

Deferred income tax assets are recognized on deductible temporary differences arising from investments in subsidiaries, associates and joint arrangements only to the extent that it is probable the temporary difference will reverse in the future and there is sufficient taxable profit available against which the temporary difference can be utilized.

The employees of the Group participate in defined contribution retirement benefit plans managed by the relevant municipal and provincial governments in the PRC. The assets of these plans are held separately from those of the Group. The Group is required to make monthly contributions to the plans, calculated as a percentage of the employees' salaries. The municipal and provincial governments undertake to assume the retirement benefit obligations to all existing and future retired employees under the plans described above. Other than the monthly contributions, the Group has no further obligations for the payment of the retirement and other post-retirement benefits of its employees.

Leases that transfer substantially all the rewards and risks of ownership of the assets to the Group, other than legal title, are accounted for as finance leases. At the inception of a finance lease, the cost of the leased asset is capitalized at the present value of the minimum lease payments and recorded together with the obligation, excluding the interest element, to reflect the purchase and financing. Assets held under capitalized finance leases, including prepaid land lease payments under finance leases, are included in property, plant and equipment, and depreciated over the shorter of the lease terms and the estimated useful lives of the assets. The finance costs of such leases are charged to the consolidated income statements so as to provide a constant periodic rate of charge over the lease terms.

Leases in which a significant portion of the risks and rewards of ownership are retained by the lessor are classified as operating leases. Payments made under operating leases are charged to the consolidated income statements on a straight-line basis over the period of the leases.

Incentives from government are recognized at their fair values where there is a reasonable assurance that the incentives will be received and all attached conditions will be complied with.

Government incentives relating to costs are deferred and recognized in the consolidated income statements over the period necessary to match them with the costs that they are intended to compensate.

Government grants relating to property, plant and equipment are included in other payables, accruals and advance receipts and non-current liabilities as deferred income and credited to the consolidated income statements on a straight-line basis over the expected lives of the related assets.

Revenue from provision of services is recognized when the benefits of the services transfer to the customer over time, which is based on the proportionate value of services rendered as determined under the terms of the relevant contract. Additionally, when the amounts that can be invoiced correspond directly with the value to the customer for performance completed to date, the Group recognizes revenue from provision of services based on amounts that can be invoiced to the customer.

Revenue is shown net of value-added tax, returns, volume rebates and discounts after eliminating sales within the Group. Revenue and income are recognized as follows:

Sales of goods are recognized when a group entity has delivered products to the customer, the customer has accepted the products and collectability of the related receivables is reasonably assured.

Interest income is recognized on a time-proportion basis using the effective interest method.

Operating segments are reported in a manner consistent with the internal reporting provided to the chief operating decision-makers. The Company's Board of Directors, which is responsible for allocating resources and assessing performance of the operating segments, has been identified as the steering committee that makes strategic decisions.

Substantially all of the Group's cash and cash equivalents are deposited in major financial institutions, which management believes are of high credit quality.

Bills receivables are mostly settled by state-owned banks or other reputable banks and therefore the management considers that they will not expose the Group to any significant credit risk.

As at December 31, 2018 and 2017, the Group has no significant interest-bearing assets except for cash and cash equivalents, details of which have been disclosed in Note 10, and has no interest-bearing bank borrowings.

As at December 31, 2018 and 2017, the Group's current financial liabilities were mainly due for settlement within twelve months and the Group expects to meet all liquidity requirements.

Currently, it is the Group's strategy to maintain a reasonable liabilities to assets ratio. The liabilities to assets ratio as at December 31, 2018 and 2017 was as follows:

The Group does not have any financial assets or liabilities which are carried at fair value. The carrying amounts of the Group's current financial assets, including cash and cash equivalents, trade and bills receivables, other receivables and current financial liabilities, including trade payables, and other payables and accruals approximate their fair values due to their short-term maturities. The carrying amounts of the

Group's financial instruments carried at cost or amortized cost are not materially different from their fair values.

The following is a review of the more significant assumptions and estimates, as well as the accounting policies and methods used in the preparation of the consolidated financial statements.

Certain sales rebates are provided to customers when their business performance for the whole year meets certain criteria as stipulated in the contracts. Sales rebates are considered variable consideration and the estimate of sales rebates during the year is based on estimated sales transactions for the entire period stipulated and is subject to change based on actual performance and collection status.

The Group tests annually whether goodwill has suffered any impairment. Other non-financial assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset exceeds its recoverable amount in accordance with the accounting policy stated in Note 2(m). The recoverable amount of an asset or a cash-generating unit is determined based on the higher of the asset's or the cash-generating unit's fair value less costs to disposal and value-in-use. The value-in-use calculation requires the entity to estimate the future cash flows expected to arise from the asset and a suitable discount rate in order to calculate present value, and the growth rate assumptions in the cash flow projections which has been prepared on the basis of management's assumptions and estimates.

can be utilized. Where the final outcomes are different from the estimations, such differences will impact the carrying amount of deferred tax in the period in which such determination is made.

Management has reviewed the Group's internal reporting in order to assess performance and allocate resources, and has determined that the Group has two reportable operating segments as follows:

—Distribution business—provision of sales, distribution and marketing services to pharmaceutical manufacturers

The operating segments are strategic business units that offer different products and services. They are managed separately because each business requires different technology and marketing approaches. The performance of each of the reportable segments is assessed based on a measure of earnings before share of profits of joint venture and associated companies, net of tax, interest income, finance costs and taxation charge ("Adjusted EBIT").

Revenue from external customers is after elimination of inter-segment sales. The amount eliminated was US$1.9 million for 2018 (2017: US$3.0 million; 2016: US$16.2 million). Sales between segments are carried out at mutually agreed terms. Revenue from external customers is primarily for sales of goods which are recognized at a point in time, except for provision of services which are recognized over time of US$3.4 million in 2018 (2017: US$0.7 million; 2016 US$0.8 million) and included in the manufacturing business operating segment.

A reconciliation of Adjusted EBIT for reportable segments to profit before taxation is provided as follows:

	Year Ended December 31,

	2018	2017		2016
	(in US$'000)
Cost of inventories recognized as expense	89,939	125,156		122,969
Depreciation of property, plant and equipment	5,348	4,380		2,227
Impairment of property, plant and equipment	—	—		617
Loss on disposal of property, plant and equipment	103	166		60
Amortization of leasehold land	256	253		255
Amortization of other intangible assets	361	352		476
Operating lease rentals in respect of land and buildings	1,180	1,214		872
Movements on the provision for trade receivables	19	(41	)	38
Movements on the provision for excess and obsolete inventories	769	187		972
Research and development expense	823	1,014		1,098
Auditor's remuneration	81	87		90
Employee benefit expenses (Note 9)	33,454	32,659		31,910

The taxation charge on the Group's profit before taxation differs from the theoretical amount that would arise using the Group's weighted average tax rate as follows:

The weighted average tax rate calculated at the statutory tax rates of respective companies for the year was 25% (2017: 25%; 2016: 25%). The effective tax rate for the year was 20.4% (2017: 14.9%; 2016: 15.3%).

Employee benefit expenses of approximately US$9.2 million (2017: US$9.1 million; 2016: US$8.7 million) are included in cost of sales.

The impaired and provided receivables as at December 31, 2018 and December 31, 2017 were aged over 1 year.

In December 2016, the board of directors and shareholders of Nanyang Baiyunshan Hutchison Whampoa Guanbao Pharmaceutical Company Limited ("NBHG") agreed in principle to a divestment of the Company's 60% majority interest in NBHG. On July 26, 2017, the Company received dividends of US$1.6 million from NBHG and on September 1, 2017 completed the divestment of its majority interest in NBHG for consideration of US$2.7 million (which was US$2.6 million net of cash held at NBHG). Based on the then net assets associated with NBHG attributable to the Company of US$2.9 million, the Company recorded a loss of $0.2 million upon the divestment.

	Buildings and facilities		Plant and equipment		Furniture and fixtures, other equipment and motor vehicles		Construction in progress		Total

	(in US$'000)
Cost
As at January 1, 2018	63,378		26,720		8,494		1,973		100,565
Additions	228		539		1,607		1,097		3,471
Disposals	—		(343	)	(47	)	—		(390	)
Transfers	399		82		1,101		(1,582	)	—
Exchange differences	(2,686	)	(1,132	)	(455	)	(65	)	(4,338	)

As at December 31, 2018	61,319		25,866		10,700		1,423		99,308

Accumulated depreciation
As at January 1, 2018	10,880		12,110		6,758		—		29,748
Depreciation	2,406		1,626		1,316		—		5,348
Disposals	—		(249	)	(38	)	—		(287	)
Exchange differences	(547	)	(558	)	(329	)	—		(1,434	)

As at December 31, 2018	12,739		12,929		7,707		—		33,375

Net book value
As at December 31, 2018	48,580		12,937		2,993		1,423		65,933

	Buildings and facilities	Plant and equipment		Furniture and fixtures, other equipment and motor vehicles		Construction in progress		Total

	(in US$'000)
Cost
As at January 1, 2017	25,969	13,701		7,769		42,618		90,057
Additions	2,539	291		677		2,605		6,112
Disposals	—	(328	)	(1,026	)	—		(1,354	)
Transfers	32,214	11,847		580		(44,641	)	—
Exchange differences	2,656	1,209		494		1,391		5,750

As at December 31, 2017	63,378	26,720		8,494		1,973		100,565

Accumulated depreciation
As at January 1, 2017	8,550	10,088		6,289		—		24,927
Depreciation	1,762	1,841		777		—		4,380
Disposals	—	(484	)	(704	)	—		(1,188	)
Exchange differences	568	665		396		—		1,629

As at December 31, 2017	10,880	12,110		6,758		—		29,748

Net book value
As at December 31, 2017	52,498	14,610		1,736		1,973		70,817

	Buildings and facilities		Plant and equipment		Furniture and fixtures, other equipment and motor vehicles		Construction in progress		Total

	(in US$'000)
Cost
As at January 1, 2016	26,757		12,794		7,888		31,259		78,698
Additions	816		706		926		15,390		17,838
Disposals	(25	)	(11	)	(53	)	—		(89	)
Transfers	226		1,134		17		(1,377	)	—
Transfer to assets classified as held for sale	—		—		(447	)	—		(447	)
Exchange differences	(1,805	)	(922	)	(562	)	(2,654	)	(5,943	)

As at December 31, 2016	25,969		13,701		7,769		42,618		90,057

Accumulated depreciation
As at January 1, 2016	7,774		10,070		6,163		—		24,007
Depreciation	842		592		793		—		2,227
Disposals	(1	)	(9	)	(19	)	—		(29	)
Impairment	487		130		—		—		617
Transfer to assets classified as held for sale	—		—		(206	)	—		(206	)
Exchange differences	(552	)	(695	)	(442	)	—		(1,689	)

As at December 31, 2016	8,550		10,088		6,289		—		24,927

Net book value
As at December 31, 2016	17,419		3,613		1,480		42,618		65,130

Construction in progress in 2016 mainly related to the construction of an office building and a factory. In March 2017 and December 2017, the factory and office became ready for its intended use respectively.

The Group's deferred tax assets and liabilities are temporary differences including tax losses, accrued expenses, provisions and depreciation allowances. The potential deferred tax assets in respect of tax losses which have not been recognized in the consolidated financial statements were approximately US$1.0 million (2017: US$0.6 million).

These unrecognized tax losses can be carried forward against future taxable income and will expire in the following years:

(a) Reconciliation of profit for the year to net cash generated from operations:

	Year Ended December 31,

	2018		2017		2016
	(in US$'000)
Profit for the year	16,476		20,805		20,128
Adjustments to reconcile profit for the year to net cash generated from operations
Taxation charge	4,227		3,629		3,631
Finance costs	152		117		123
Interest income	(81	)	(220	)	(238	)
Share of profits of joint venture and associated companies, net of tax	(131	)	(65	)	(19	)
Depreciation on property, plant and equipment	5,348		4,380		2,227
Loss on disposal of property, plant and equipment	103		166		60
Impairment of property, plant and equipment	—		—		617
Amortization of leasehold land	256		253		255
Amortization of other intangible assets	361		352		476
Movements on the provision for trade receivables	19		(41	)	38
Movements on the provision for excess and obsolete inventories	769		187		972
Amortization of deferred income	(1,753	)	(1,076	)	(1,941	)
Loss on divestment of a subsidiary	—		169		—
Exchange differences	(1,617	)	1,363		(810	)
Changes in working capital:
Trade and bills receivables	(10,330	)	6,903		(15,266	)
Other receivables, prepayments and deposits	1,229		(3,265	)	(2,153	)
Inventories	(3,137	)	(15,771	)	2,633
Other non-current assets	(302	)	(206	)	—
Trade payables	119		(3,424	)	10,531
Other payables, accruals and advance receipts	17,466		11,194		(4,838	)
Movements on the net assets classified as held for sale	—		(606	)	—

Total changes in working capital	5,045		(5,175	)	(9,093	)

Net cash generated from operations	29,174		24,844		16,426

During the years ended December 31, 2018 and 2017, there was a decrease in accruals made for purchases of property, plant and equipment of US$1.9 million and US$1.1 million respectively. During the year ended December 31, 2016, there was an increase in accruals made for purchases of property, plant and equipment of US$3.7 million.

During the year ended December 31, 2016, a non-controlling shareholder of a subsidiary made an additional capital contribution in the form of intangible assets amounting to US$3.6 million.

Capital commitments for property, plant and equipment are mainly for improvements of the Group's plant.

The Group leases various warehouses under non-cancellable operating lease agreements. The future aggregate minimum lease payments in respect of non-cancellable operating leases were as follows:

The Group has the following significant transactions with related parties which were carried out in the normal course of business at terms determined and agreed by the relevant parties:

	Year Ended December 31,

	2018	2017	2016
	(in US$'000)
Sales of goods to:
—Fellow subsidiaries of GBPHCL	23,015	24,252	22,872
—A fellow subsidiary of GZHCMHK	756	946	280

	23,771	25,198	23,152



Other services income from:
—Fellow subsidiaries of GBPHCL	6,994	3,171	2,310



Purchase of goods from:
—An equity investee	4,349	1,726	745
—Fellow subsidiaries of GBPHCL	33,044	31,446	36,291

	37,393	33,172	37,036



Advertising expenses to:
—A fellow subsidiary of GBPHCL	7,752	5,957	3,527



Interest paid to:
—A fellow subsidiary of GBPHCL	45	92	85
—A non-controlling shareholder of a subsidiary	21	25	—

	66	117	85

No transactions have been entered into with the directors of the Company (being the key management personnel) during the year ended December 31, 2018 (2017 and 2016: nil).

	December 31,

	2018	2017
	(in US$'000)
Trade and bills receivables
—Fellow subsidiaries of GZHCMHK (note (i))	—	20
—Fellow subsidiaries of GBPHCL (note (i))	1,891	265

	1,891	285



Trade payables
—Fellow subsidiaries of GBPHCL (note (i))	4,665	3,838
—An equity investee (note (i))	718	—

	5,383	3,838



Other receivables—related parties
—Fellow subsidiaries of GBPHCL (note (i))	1,113	727
—An equity investee (note (i))	112	443

	1,225	1,170



Other payables, accruals and advance receipt
—Fellow subsidiaries of GZHCMHK (note (i))	156	158
—Fellow subsidiaries of GBPHCL (note (i))	6,704	3,231
—GBPHCL (note (ii))	134	2,477
—GZHCMHK (dividend payable)	—	7,628
—GBPHCL (dividend payable)	—	7,628

	6,994	21,122

24. Particulars of Principal Subsidiaries, Joint Venture and Associated Companies

		Nominal value of registered capital		Equity interest attributable to the Group

		As at December 31,		As at December 31,
	Place of establishment and operation
						Type of legal entity
Name		2018	2017	2018	2017	Type of legal entity	Principal activity
		(in RMB'000)
Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine (Bozhou) Co. Ltd	PRC	100,000	100,000	100%	100%	Limited liability company	Manufacture, sales and distribution of drug products
Hutchison Whampoa Guangzhou Baiyunshan Pharmaceuticals Limited	PRC	10,000	10,000	100%	100%	Limited liability company	Sales and marketing of drug products
Hutchison Whampoa Guangzhou Baiyunshan Health & Wellness Co. Ltd	PRC	10,000	10,000	100%	100%	Limited liability company	Health supplemented food distribution
Hutchison Whampoa Baiyunshan Lai Da Pharmaceuticals (Shan Tou) Company Limited	PRC	10,000	10,000	70%	70%	Limited liability company	Manufacture, sales and distribution of drug products
Fuyang Baiyunshan Hutchison Whampoa Chinese Medicine Technology Company Limited	PRC	3,650	3,650	75%	75%	Limited liability company	Agriculture and sales of Chinese herbs
Wenshan Baiyunshan Hutchison Whampoa Sanqi Co. Ltd.	PRC	2,000	2,000	51%	51%	Limited liability company	Agriculture and sales of Chinese herbs
Daqing Baiyunshan Hutchison Whampoa Banlangen Technology Company Limited	PRC	1,020	1,020	51%	51%	Limited liability company	Agriculture and sales of Chinese herbs
Shen Nong Garden Traditional Chinese Medicine Museum	PRC	1,000	1,000	100%	100%	Non-profit making organization	Promote awareness of Chinese herbs
Nanyang Baiyunshan Hutchison Whampoa Danshen R&D Limited	PRC	1,000	1,000	51%	51%	Limited liability company	Agriculture and sales of Chinese herbs
Bozhou Baiyunshan Pharmaceuticals Co Ltd	PRC	500	500	100%	100%	Limited liability company	Manufacture, sales and distribution of drug products
Shen Nong Garden Pharmacy Company Limited	PRC	200	—	100%	—	Limited liability company	Retail of drug products, health foods and souvenirs
Joint Venture
Qing Yuan Baiyunshan Hutchison Whampoa ChuanXinLian R&D Limited	PRC	1,000	1,000	50%	50%	Limited liability company	Agriculture and sales of Chinese herbs
Associated companies
Linyi Shenghe Jiuzhou Pharmaceuticals Company Limited	PRC	3,000	3,000	30%	30%	Limited liability company	Agriculture and sales of Chinese herbs
Tibet Lizhi Guangzhou Pharmaceutical Development Co. Ltd.	PRC	2,000	2,000	20%	20%	Limited liability company	Trading of Chinese herbs

The Group evaluated subsequent events through March 11, 2019, which is the date when the consolidated financial statements were issued.

To the Board of Directors and Shareholders of Nutrition Science Partners Limited

We have audited the accompanying consolidated financial statements of Nutrition Science Partners Limited and its subsidiary, which comprise the consolidated statements of financial position as of December 31, 2018 and 2017, and the related consolidated income statements, consolidated statements of comprehensive income, of changes in equity and of cash flows for each of the three years in the period ended December 31, 2018.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Nutrition Science Partners Limited and its subsidiary as of December 31, 2018 and 2017, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2018, in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board.

The accompanying notes are an integral part of these consolidated financial statements.

Nutrition Science Partners Limited
Consolidated Statements of Comprehensive Income
(in US$'000)

The accompanying notes are an integral part of these consolidated financial statements.

Nutrition Science Partners Limited
Consolidated Statements of Financial Position
(in US$'000)

		December 31,

	Note	2018		2017
Assets
Current assets
Cash and cash equivalents	7	17,320		9,640
Non-current asset
Intangible asset	8	—		30,000

Total assets		17,320		39,640



Liabilities and shareholders' equity
Current liabilities
Other payables and accruals		1,044		289
Amounts due to related companies	10	73		950

Total liabilities		1,117		1,239

Shareholders' equity
Share capital	9	114,000		98,000
Accumulated losses		(97,797	)	(59,599	)

Total shareholders' equity		16,203		38,401

Total liabilities and shareholders' equity		17,320		39,640

The accompanying notes are an integral part of these consolidated financial statements.

Nutrition Science Partners Limited
Consolidated Statements of Changes in Equity
(in US$'000)

The accompanying notes are an integral part of these consolidated financial statements.

Nutrition Science Partners Limited
Consolidated Statements of Cash Flows
(in US$'000)

		Year Ended December 31,

	Note	2018		2017		2016
Operating activities
Loss for the year		(38,198	)	(9,210	)	(8,482	)
Impairment provision	8	30,000		—		—
Changes in working capital:
Prepayments		—		—		410
Other payables and accruals		755		149		(311	)
Amounts due to related companies		(877	)	(692	)	1,152

Net cash used in operating activities		(8,320	)	(9,753	)	(7,231	)

Financing activities
Proceeds from issuance of share capital	9	16,000		14,000		10,000

Net cash generated from financing activities		16,000		14,000		10,000

Net increase in cash and cash equivalents		7,680		4,247		2,769
Cash and cash equivalents
Cash and cash equivalents at beginning of year		9,640		5,393		2,624

Cash and cash equivalents at end of year		17,320		9,640		5,393



Supplemental disclosure of non-cash activities
Capitalization of shareholders' loans	9	—		—		14,000

The accompanying notes are an integral part of these consolidated financial statements.

Nutrition Science Partners Limited

Notes to the Consolidated Financial Statements

Nutrition Science Partners Limited (the "Company") and its subsidiary (together, the "Group") are principally engaged in the research and development of pharmaceutical products. The Company was incorporated in Hong Kong on May 28, 2012 as a limited liability company. During the year, the registered office of the Company was located at 22nd Floor, Hutchison House, 10 Harcourt Road, Hong Kong. It was relocated to 48^th Floor, Cheung Kong Center, 2 Queen's Road Central, Hong Kong, on January 28, 2019 subsequent to the end of the reporting period.

On November 27, 2012, Hutchison MediPharma (Hong Kong) Limited ("HMPHK"), a subsidiary of Hutchison China MediTech Limited ("Chi-Med", which together with its subsidiaries, hereinafter collectively referred to as the "Chi-Med Group") and Nestlé Health Science S.A. ("NHS"), a subsidiary of Nestlé S.A. ("Nestlé"), entered into a joint venture agreement ("JV Agreement"). Pursuant to the JV Agreement, Nestlé agreed to contribute cash of US$30 million and the Chi-Med Group agreed to contribute assets and business processes including (i) the global development and commercial rights of a novel, oral therapy drug candidate for Inflammatory Bowel Disease and (ii) the exclusive rights to its extensive botanical library and well-established botanical research and development platform in the field of gastrointestinal disease into the Company. The Company is jointly owned by HMPHK and NHS with 50% equity interest each.

These consolidated financial statements are presented in United States dollars ("US$"), unless otherwise stated and have been approved for issue by the Company's Board of Directors on March 11, 2019.

The consolidated financial statements of the Company have been prepared in accordance with International Financial Reporting Standards ("IFRS") and interpretations issued by the IFRS Interpretations Committee applicable to companies reporting under IFRS. The consolidated financial statements comply with IFRS as issued by International Accounting Standards Board ("IASB"). These consolidated financial statements have been prepared under the historical cost convention.

During the year, the Group has adopted all of the new standards, amendments and interpretations issued by the IASB that are relevant to the Group's operations and mandatory for annual periods beginning January 1, 2018. The adoption of these new standards, amendments and interpretations did not have any material effects on the Group's results of operations or financial position.

The following standards, amendments and interpretations were in issue but not yet effective for the financial year ended December 31, 2018 and have not been early adopted by the Group:


IAS 1 and IAS 8 (Amendments)⁽²⁾		Definition of Material
IAS 19 (Amendments)⁽¹⁾		Plan Amendment, Curtailment or Settlement
IAS 28 (Amendments)⁽¹⁾		Long-term Interests in Associates and Joint Ventures
IFRS 3 (Amendments)⁽²⁾		Definition of a Business
IFRS 9 (Amendments)⁽¹⁾		Prepayment Features with Negative Compensation
IFRS 16⁽¹⁾		Leases
IFRS 17⁽³⁾		Insurance Contracts
IFRIC 23⁽¹⁾		Uncertainty over Income Tax Treatments
IFRS 10 and IAS 28 (Amendments)⁽⁴⁾		Sale or Contribution of Assets between an Investor and its Associate or Joint Venture
Annual improvement 2015-2017⁽¹⁾		Improvements to IASs and IFRSs

The adoption of standards, amendments and interpretations listed above in future periods is not expected to have any material effects on the Group's results of operations and financial position.

The consolidated financial statements of the Group include the financial statements of the Company and its subsidiary. The financial statements of the subsidiary are prepared for the same reporting period as the Company, using consistent accounting policies. The results of the subsidiary are consolidated from the date on which the Group obtained control, and will continue to be consolidated until the date that such control ceases. All intra-group assets and liabilities, equity, income, expenses and cash flows relating to transactions between members of the Group are eliminated in full on consolidation.

The subsidiary is an entity over which the Group has control. The Group controls an entity when the Group is exposed to, or has rights to variable returns from its involvement with the entity and has the ability to affect those returns through its power over the entity. In the consolidated financial statements, the subsidiary is accounted for as described in Note 2(a) above.

Items included in the financial statements of each of the Group's companies are measured using the currency of the primary economic environment in which the entity operates (the "functional currency"). The functional currency of the Company and its subsidiaries as well as the presentation currency of the Group is the US$.

The Group has one operating segment which conducts research and development activities. All segment assets are located in Hong Kong. The Company's Board of Directors has been identified as the Group's chief operating decision-maker and reviews the consolidated results of the Group for the purposes of resource allocation and performance assessment. Therefore, no additional reportable segment and geographical information has been presented.

Intangible assets acquired separately are measured on initial recognition at cost. The useful lives of intangible assets are assessed to be either finite or indefinite. Intangible assets with finite lives are subsequently amortized over the useful economic life and assessed for impairment whenever there is an indication that the intangible asset may be impaired. The amortization period and the amortization method for an intangible asset with a finite useful life are reviewed at least annually. The Group has no intangible assets with indefinite lives.

All research costs are charged to the consolidated income statements as incurred.

Expenditures incurred on projects to develop new products are capitalized and deferred only when the Group can demonstrate the technical feasibility of completing the intangible asset so that it will be available for use or sale, its intention to complete and its ability to use or sell the asset, how the asset will generate future economic benefits, the availability of resources to complete the project and the ability to measure the expenditure reliably during the development. Product development expenditures which do not meet these criteria are expensed when incurred.

In the consolidated statements of cash flows, cash and cash equivalents comprise cash at bank.

Provisions are recognized when the Group has a present legal or constructive obligation as a result of past events; it is probable that an outflow of resources will be required to settle the obligation; and the amount has been reliably estimated. Provisions are not recognized for future operating losses.

The current tax charge is calculated on the basis of the tax laws enacted or substantively enacted at the balance sheet date in the countries where the Company and its subsidiary operate and generate taxable income. Management periodically evaluates positions taken in tax returns with respect to situations in which applicable tax regulation is subject to interpretation and establish provisions where appropriate on the basis of amounts expected to be paid to the tax authorities.

The Group's activities expose it to a variety of financial risks, including credit risk and liquidity risk. The Group does not use any derivative financial instruments for speculative purposes.

The carrying amounts of cash and cash equivalents included in the consolidated statements of financial position represent the Group's maximum exposure to credit risk of the counterparty in relation to its financial asset. The Group's bank balance is maintained with a creditworthy bank with no recent history of default.

The Group's objective is to maintain a balance between continuity of funding and flexibility through balances with related companies and shareholders.

As at December 31, 2018 and 2017, the Group's current financial liabilities were all contractually due for settlement within twelve months and the Group expects to meet all liquidity requirements.

The primary objective of the Group's capital management is to safeguard the Group's ability to continue as a going concern.

The Group manages its capital structure and makes adjustments to it in light of changes in economic conditions and the risk characteristics of the underlying assets. To maintain or adjust the capital structure, the Group may issue new shares. The Group is not subject to any externally imposed capital requirements. No changes were made to these objectives, policies or processes for managing capital during the years ended December 31, 2018, 2017 and 2016.

The fair values of the financial asset and liabilities of the Group approximate their carrying amounts largely due to the short term maturities of these instruments.

Note 2 includes a summary of the significant accounting policies used in the preparation of the consolidated financial statements. The preparation of the consolidated financial statements often requires the use of judgements to select specific accounting methods and policies from several acceptable alternatives. Furthermore, significant estimates and assumptions concerning the future may be required in selecting and applying those methods and policies in the consolidated financial statements. The Group bases its estimates and judgements on historical experience and various other assumptions that it believes are reasonable under the circumstances. Actual results may differ from these estimates and judgements under different assumptions or conditions.

The following is a review of the more significant assumptions and estimates, as well as the accounting policies and methods used in the preparation of the consolidated financial statements.

The Group tests annually whether an intangible asset not ready for use has incurred any impairment. Assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets exceeds its recoverable amount in accordance with the accounting policy stated in Note 2(e). The recoverable amount of an asset or a cash-generating unit is determined based on the higher of the asset's or the cash-generating unit's fair value less costs to sell and value-in-use. The value-in-use calculation requires the entity to estimate the future cash flows expected to arise from the asset and a suitable discount rate in order to calculate present value, and the growth rate assumptions in the cash flow projections which have been prepared on the basis of management's assumptions and estimates. The fair

value less costs to sell for an asset not traded in an active market is determined using valuation techniques (level 3 in the fair value hierarchy).

During the year ended December 31, 2018, the Group recorded a full impairment provision of the intangible asset. Refer to Note 8.

On March 25, 2013, Hutchison MediPharma Limited ("HMP"), a subsidiary of Chi-Med, and NHS entered into a research and development collaboration agreement as contemplated by the JV Agreement for the exclusive rights to conduct research to evaluate and develop products from HMP's extensive botanical library and well established botanical research and development platform in the field of gastrointestinal disease. The collaboration agreement will end on December 31, 2022, until which time the Company is required to spend a minimum of US$0.5 million in each calendar year on research activities.

The Company will own the right to any products arising from the future research and development. HMP and NHS will provide the necessary services and employees in order to provide the Company with the on-going research activities. HMP and NHS will be remunerated by a fee paid by the Company for the services and staff provided.

On November 19, 2018, the Board decided to put on hold the Company's research activities pending a strategic review. Refer to Note 8.

On March 25, 2013, the Company and Nestec Ltd., an affiliate of NHS, entered into an option agreement for the exclusive option to obtain exclusive royalty-bearing licenses to commercialize certain products in certain territories. The exercise price of the option is either fixed or subject to negotiation upon the receipt of the exercise notice, depending on the territories. The value of the option is considered as negligible on day one. Because the option is not a derivative, it would not be subject to fair value remeasurement in the subsequent periods. As at December 31, 2018, the option has not been exercised.

No compensation was paid by the Group to the key management personnel of the Group in respect of their services rendered to the Group during the years ended December 31, 2018, 2017 and 2016.

No Hong Kong profits tax has been provided as the Group had no assessable profit for the years ended December 31, 2018, 2017 and 2016.

The taxation on the Group's loss before taxation differs from the theoretical account that would arise using the applicable tax rate as follows:

During the year ended December 31, 2018, the Company earned interest income of US$0.2 million on bank deposits maturing over three months that had matured as at December 31, 2018.

On November 19, 2018, the Board reviewed the progress of its drug candidates. After due consideration of the timeline and further investments required to complete the clinical trials and reach the commercialization stage, it decided to explore alternative strategic options to maximize the economic returns from the drug candidates. The Group has performed an annual impairment assessment of the recoverability of the US$30 million intangible asset by comparing its carrying amount to the higher of the asset's value-in-use or its fair value less costs to sell. In preparing its assessment, although the Group has been in the process of identifying potential buyers or collaboration partners to maximize its economics returns from the drug candidates, there is no certainty of an available market or that a suitable buyer or partner can be readily identified. Accordingly, the Group has recorded a full impairment provision.

The amounts due to related companies are unsecured, interest free and repayable on demand.

None of the directors received any fees or emoluments from the Group in respect of their services rendered to the Group during the years ended December 31, 2018, 2017 and 2016.

The Group evaluated subsequent events through March 11, 2019, which is the date when the consolidated financial statements were issued.


(Mark One)
o		REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934
OR
ý		ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018
OR
o		TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to
OR
o		SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Title of each class		Name of each exchange on which registered

American depositary shares, each representing one-half of one ordinary share, par value $1.00 per share		Nasdaq Global Select Market


Large accelerated filer ý		Accelerated filer o		Non-accelerated filer o		Emerging growth company o


Introduction		3
Forward-Looking Statements		4
PART I		7
Item 1.	Identity of Directors, Senior Management and Advisers	7
Item 2.	Offer Statistics and Expected Timetable	7
Item 3.	Key Information	7
Item 4.	Information on the Company	56
Item 4A.	Unresolved Staff Comments	157
Item 5.	Operating and Financial Review and Prospects	157
Item 6.	Directors, Senior Management and Employees	194
Item 7.	Major Shareholders and Related Party Transactions	209
Item 8.	Financial Information	214
Item 9.	The Offer and Listing	215
Item 10.	Additional Information	215
Item 11.	Quantitative and Qualitative Disclosures About Market Risk	226
Item 12.	Description of Securities Other Than Equity Securities	226
PART II		228
Item 13.	Defaults, Dividend Arrearages and Delinquencies	228
Item 14.	Material Modifications to the Rights of Security Holders and Use of Proceeds	228
Item 15.	Controls and Procedures	228
Item 16.	Reserved	229
Item 16A.	Audit Committee Financial Experts	229
Item 16B.	Code of Ethics	230
Item 16C.	Principal Accountant Fees and Services	230
Item 16D.	Exemptions From The Listing Standards For Audit Committees	230
Item 16E.	Purchases of Equity Securities by the Issuer and Affiliated Purchasers	230
Item 16F.	Change In Registrant's Certifying Accountant	231
Item 16G.	Corporate Governance	231
Item 16H.	Mine Safety Disclosure	231
PART III		231
Item 17.	Financial Statements	231
Item 18.	Financial Statements	231
Item 19.	Exhibits	232
SIGNATURES		235

Treatment	Name, Line, Patient Focus	Sites	Phase	Status/Plan	NCT #

Savolitinib and Tagrisso	TATTON: 2L/3L EGFRm+; TKI refractory; MET+	Global	Ib/II	Completed Data present 2019	NCT02143466
Savolitinib and Tagrisso	SAVANNAH: 2L/3L EGFRm+; Tagrisso refractory; MET+	Global	II	Initiated Dec 2018	NCT03778229
Savolitinib and Iressa	2L EGFRm; Iressa ref; MET+	China	Ib/II	Completed	NCT02374645
Savolitinib	MET Exon 14 deletion	China	II Registration	Target compl. end 2019	NCT02897479


U.S. GAAP ý		International Financial Reporting Standards as issued by the International Accounting Standards Board o		Other o

Treatment	Name, Line, Patient Focus	Sites	Phase	Status/Plan	NCT #

Savolitinib monotherapy	PRCC	Global	II	Completed	NCT02127710
Savolitinib monotherapy	SAVOIR; MET+ PRCC	Global	III	Enrol. suspended	NCT03091192
Savolitinib monotherapy	PAPMET: Savo vs. sunitinib vs. cabozantinib vs. crizotinib	US (NCI)	II	Enrol. suspended	NCT02761057
Savolitinib monotherapy	CALYPSO: Clear cell RCC; VEGFR TKI refractory	UK/Spain	II	Discontinued (focus on PD-L1 combos)	NCT02819596
Savolitinib and Imfinzi	CALYPSO: PRCC	UK/Spain	II	Interim—Presented at ASCO GU 2019	NCT02819596
Savolitinib and Imfinzi	CALYPSO: Clear cell RCC; VEGFR TKI refractory	UK/Spain	II	Enrolling—Data late 2019/2020	NCT02819596

Treatment	Name, Line, Patient Focus	Sites	Phase	Status/Plan	NCT #

Savolitinib monotherapy	Gastric cancer (MET amplification) and VIKTORY	China & South Korea	II	Completed VIKTORY to publish 2019	NCT01985555/ NCT02449551
Savolitinib and Taxotere	VIKTORY: Gastric cancer (MET amplification)	South Korea	II	Enrollment stopped (patients directed to savo mono due to high efficacy observed)	NCT02447406
Savolitinib and Taxotere	VIKTORY: Gastric cancer (MET over-expression)	South Korea	II	Enrollment stopped (patients directed to savo mono due to high efficacy observed)	NCT02447380

Treatment		Name, Line, Patient Focus		Sites		Phase		Status/Plan		NCT #

Savolitinib monotherapy		Metastatic Castration-Resistant Prostate Cancer		Canada		II		Enrolling		NCT03385655

Treatment	Name, Line, Patient Focus	Sites	Phase	Status/Plan	NCT #

Fruquintinib monotherapy	³3L metastatic CRC	China	Ib/II	Completed	NCT01975077/ NCT01645215/ NCT02196688
Fruquintinib monotherapy	FRESCO: ³3L CRC; chemotherapy refractory	China	III	Approved and launched	NCT02314819
Fruquintinib monotherapy	3L/4L CRC; Stivarga/ Lonsurf ref./intol.	US/EU	II/III	US/EU registration study in planning	TBD

Treatment	Name, Line, Patient Focus	Sites	Phase	Status/Plan	NCT #

Fruquintinib and Taxol	2L gastric cancer	China	Ib	Completed	NCT 02415023
Fruquintinib and Taxol	FRUTIGA: 2L gastric cancer	China	III	Interim analysis in early 2019	NCT03223376

Treatment	Name, Line, Patient Focus	Sites	Phase	Status/Plan	NCT #

Fruquintinib monotherapy	3L NSCLC; chemotherapy refractory	China	II	Completed	NCT02590965
Fruquintinib monotherapy	FALUCA: 3L NSCLC; chemotherapy refractory	China	III	Announced top-line results	NCT02691299
Fruquintinib and Iressa	1L NSCLC; EGFRm	China	II	Enrollment completed	NCT02976116

Treatment	Name, Line, Patient Focus	Sites	Phase	Status/Plan	NCT #

Fruquintinib and genolimzumab (PD-1)	Solid tumors	China	I	Safety run-in in planning	TBD
Fruquintinib and Tyvyt (PD-1)	Solid tumors	China	I	Safety run-in in planning	TBD

Treatment	Name, Line, Patient Focus	Sites	Phase	Status/Plan	NCT #

Surufatinib monotherapy	Pancreatic NET	China	Ib/II	Completed	NCT02267967
Surufatinib monotherapy	SANET-p: Pancreatic NET	China	III	Interim analysis end 2019 Est. enrolled early 2020	NCT02589821
Surufatinib monotherapy	2L Pancreatic NET; Sutent/Afinitor refractory	US/EU	Ib	US/EU registration study in planning	NCT02549937
Surufatinib monotherapy	SANET-ep: Non-pancreatic NET	China	III	Interim analysis mid-2019 Est. enrolled 2019/2020	NCT02588170

Treatment		Name, Line, Patient Focus		Sites		Phase		Status/Plan		NCT #

Surufatinib monotherapy		Chemotherapy refractory BTC		China		Ib/II		Enrollment complete		NCT02966821

Enzyme IC₅₀ (nM)	HMPL-689	Zydelig	Copiktra	Aliqopa

PI3Kd	0.8 (n = 3)	2	1	0.7
PI3Kg (fold vs. PI3Kd)	114 (142x)	104 (52x)	2 (2x)	6.4 (9x)
PI3Ka (fold vs. PI3Kd)	>1,000 (>1,250x)	866 (433x)	143 (143x)	0.5 (1x)
PI3Kd human whole blood CD63+	3	14	15	n/a
PI3Kb (fold vs. PI3Kd)	87 (109x)	293 (147x)	8 (8x)	3.7 (5x)

	Gene amplification	Gene translocation	Gene mutation

FGFR1	Lung squamous (7~15%)	Lung squamous (n/a)	Gastric (4%)
	H&N squamous (10~17%)	Glioblastoma (n/a)	Pilocytic astrocytoma (5~8%)
	Esophageal squamous (9%)	Myeloproliferative syndrome (n/a)
	Breast (10~15%)	Breast (n/a)
FGFR2	Gastric (5~10%)	Intra-hepatic biliary tract cancer (cholangiocarcinoma) (14%)	Endometrial (12~14%)
	Breast (4%)	Breast (n/a)	Lung squamous (5%)
FGFR3	Bladder (n/a)	Bladder (3~6%); Lung squamous (3%);	Bladder (60~80% NMIBC; 15~20 MIBC)
	Salivary adenoid cystic (n/a)	Glioblastoma (3%)	Cervical (5%)
		Myeloma (15~20%)

Treatment		Name, Line, Patient Focus		Sites		Phase		Status/Plan		NCT #

Surufatinib monotherapy		Recurrent/refractory thyroid cancer		China		II		Completed		NCT02614495

Treatment	Name, Line, Patient Focus	Sites	Phase	Status/Plan	NCT #

Surufatinib and Tuoyi (PD-1)	Solid tumors	China	I	Safety run-in in planning	TBD
Surufatinib and Tuoyi (PD-1)	Solid tumors	US	I	Safety run-in in planning	TBD
Surufatinib and HX008 (PD-1)	TBD	China	I	Safety run-in in planning	TBD

Treatment	Name, Line, Patient Focus	Sites	Phase	Status/Plan	NCT #

HMPL-523 monotherapy	Indolent NHL	Australia	Ib	Enrolling	NCT02503033
HMPL-523 monotherapy	Multiple subtypes of B cell malignancies	China	Ib	Enrolling	NCT02857998
HMPL-523 monotherapy	Indolent NHL	US/EU	I	In planning	NCT03779113
HMPL-523 and azacitidine	AML	China	I	Enrolling	NCT03483948
HMPL-523 monotherapy	Immune thrombocytopenia	China	I/Ib	In planning	TBD

Treatment	Name, Line, Patient Focus	Sites	Phase	Status/Plan	NCT #

Epitinib monotherapy	Glioblastoma	China	Ib/II	Enrolling	NCT03231501
Epitinib monotherapy	EGFR-mutation NSCLC with brain metastasis	China	Ib	Completed	NCT02590952

	Year Ended December 31,

	2018				2017
	($'000)		%		($'000)		%
Revenue	275,649		100.0		244,557		100.0
Cost of sales	(82,710	)	(30.0	)	(68,592	)	(28.0	)
Selling expenses	(111,984	)	(40.6	)	(104,504	)	(42.7	)
Administrative expenses	(14,522	)	(5.3	)	(13,257	)	(5.4	)
Taxation charge	(9,371	)	(3.4	)	(10,874	)	(4.4	)
Profit for the year	59,767		21.7		55,623		22.7



Equity in earnings of equity investee attributable to our company	29,884		10.8		27,812		11.4

	Payment Due by Period

	Total		Less Than 1 Year		1-3 Years		3-5 Years		More Than 5 Years
	($'000)
Bank borrowings		26,923		—		26,923		—		—
Interest on bank borrowings		1,225		641		584		—		—
Purchase obligations		1,498		1,498		—		—		—
Operating lease obligations		8,835		3,026		3,791		1,692		326

Total		38,481		5,165		31,298		1,692		326

Name and Principal Position

Christian Hogg	439,885	⁽¹⁾⁽²⁾	846,154		16,485	27,550	1,330,074
Johnny Cheng	349,264	⁽³⁾	307,692		—	25,050	682,006
Weiguo Su	347,502	⁽²⁾	712,121		10,000	22,612	1,092,235
Other Executive Officers in the Aggregate	939,114		1,989,925	⁽⁴⁾	13,228	62,423	3,004,690

Name and Principal Position	Maximum Aggregate Value of LTIP awards⁽¹⁾

Christian Hogg	$	523,615
Johnny Cheng	$	204,808
Weiguo Su	$	366,255
Other Executive Officers in the Aggregate	$	342,719

Name of Director

Simon To	83,699	⁽¹⁾
Dan Eldar	70,000
Edith Shih	70,000	⁽²⁾
Paul Carter	113,301
Karen Ferrante	102,500
Graeme Jack	104,000
Tony Mok	84,000



By Function:
Innovation Platform	418	358	329
Commercial Platform	267	205	209
Corporate Head Office	29	27	25

Total	714	590	563

	For the year ended December 31,

	2018		2017
	(in thousands)
Audit fees⁽¹⁾		2,383		2,360
Tax fees⁽²⁾		97		—
Other service fees⁽³⁾		95		105

Total⁽⁴⁾		2,575		2,465



1.1	*	Memorandum and Articles of Association of Hutchison China MediTech Limited (incorporated by reference to Exhibit 3.1 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on October 16, 2015)

2.1	*	Form of Deposit Agreement and all holders and beneficial owners of ADSs issued thereunder (incorporated by reference to Exhibit 4.1 to Amendment No. 4 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on March 4, 2016)

2.2	*	Form of American Depositary Receipt (incorporated by reference to Exhibit 4.1 to Amendment No. 4 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on March 4, 2016)

2.3	*	Form of Specimen Certificate for Ordinary Shares (incorporated by reference to Exhibit 4.3 to Amendment No. 2 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on February 11, 2016)

4.1	*⁺	License and Collaboration Agreement by and between Hutchison MediPharma Limited and AstraZeneca AB (publ) dated as of December 21, 2011 (incorporated by reference to Exhibit 10.9 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on October 16, 2015)

4.2	*⁺	Amended and Restated Exclusive License and Collaboration Agreement by and among Hutchison MediPharma Limited, Eli Lilly Trading (Shanghai) Company Limited and Hutchison China MediTech Limited dated as of October 8, 2013 (incorporated by reference to Exhibit 10.10 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on October 16, 2015)

4.3	*⁺	Option Agreement by and between Hutchison China MediTech Limited and Eli Lilly and Company dated as of October 8, 2013 (incorporated by reference to Exhibit 10.11 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on October 16, 2015)

4.4	*⁺	Joint Venture Agreement by and among Hutchison MediPharma (Hong Kong) Limited, Nestlé Health Science S.A., Nutrition Science Partners Limited and Hutchison China MediTech Limited dated as of November 27, 2012 (incorporated by reference to Exhibit 10.12 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on November 13, 2015)

4.5	*⁺	English translation of Sino-Foreign Joint Venture Contract by and between Guangzhou Baiyunshan Pharmaceutical Holdings Company Limited and Hutchison Chinese Medicine (Guangzhou) Investment Limited dated as of November 28, 2004 (incorporated by reference to Exhibit 10.13 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on October 16, 2015)

4.6	*⁺	English translation of Sino-Foreign Joint Venture Contract by and between Shanghai Traditional Chinese Medicine Co., Ltd. and Hutchison Chinese Medicine (Shanghai) Investment Limited dated as of January 6, 2001 (incorporated by reference to Exhibit 10.14 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on October 16, 2015)


4.7	*	English translation of First Amendment to Sino-Foreign Joint Venture Contract by and between Shanghai Traditional Chinese Medicine Co., Ltd. and Hutchison Chinese Medicine (Shanghai) Investment Limited dated as of July 12, 2001 (incorporated by reference to Exhibit 10.15 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on October 16, 2015)

4.8	*	English translation of Second Amendment to Sino-Foreign Joint Venture Contract by and between Shanghai Traditional Chinese Medicine Co., Ltd. and Shanghai Hutchison Chinese Medicine (HK) Investment Limited dated as of November 5, 2007 (incorporated by reference to Exhibit 10.16 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on October 16, 2015)

4.9	*	English translation of Third Amendment to Sino-Foreign Joint Venture Contract by and between Shanghai Traditional Chinese Medicine Co., Ltd. and Shanghai Hutchison Chinese Medicine (HK) Investment Limited dated as of June 19, 2012 (incorporated by reference to Exhibit 10.17 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on October 16, 2015)

4.10	*⁺	English translation of Fourth Amendment to Sino-Foreign Joint Venture Contract by and between Shanghai Traditional Chinese Medicine Co., Ltd. and Shanghai Hutchison Chinese Medicine (HK) Investment Limited dated as of March 8, 2013 (incorporated by reference to Exhibit 10.18 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on October 16, 2015)

4.11	*	English translation of Sino-Foreign Joint Venture Contract by and between Sinopharm Group Co. Ltd. and Hutchison Chinese Medicine GSP (HK) Holdings Limited dated as of December 18, 2013 (incorporated by reference to Exhibit 10.19 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on October 16, 2015)

4.12	*	Form of Executive Employment Agreement for Hutchison China MediTech (HK) Limited executive officers (incorporated by reference to Exhibit 10.23 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on October 16, 2015)

4.13	*	English translation of Form of Executive Employment Agreement for Hutchison MediPharma Limited executive officers (incorporated by reference to Exhibit 10.24 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on October 16, 2015)

4.14	*	Form of Indemnification Agreement for Directors and Officers (incorporated by reference to Exhibit 10.25 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on October 16, 2015)

4.15	*⁺	First Amendment to License and Collaboration Agreement by and between Hutchison MediPharma Limited and AstraZeneca (publ) dated as of August 1, 2016 (incorporated by reference to Exhibit 4.19 to our annual report on Form 20-F filed with the SEC on March 13, 2017)

4.16	**^#	First Amendment to the Amended and Restated Exclusive License and Collaboration Agreement by and among Lilly (Shanghai) Management Company Limited, Hutchison MediPharma Limited and Hutchison China MediTech Limited dated as of December 18, 2018

8.1	*	List of Significant Subsidiaries of the Company (incorporated by reference to Exhibit 21.1 to our Registration Statement on Form F-1 (file no. 333-207447) filed with the SEC on October 16, 2015)



12.1	**	Certification of Chief Executive Officer Required by Rule 13a-14(a)

12.2	**	Certification of Chief Financial Officer Required by Rule 13a-14(a)

13.1	^†	Certification of Chief Executive Officer Required by Rule 13a-14(b) and Section 1350 of Chapter 63 of Title 18 of the United States Code

13.2	^†	Certification of Acting Chief Financial Officer Required by Rule 13a-14(b) and Section 1350 of Chapter 63 of Title 18 of the United States Code

15.1	**	Consent of PricewaterhouseCoopers, an independent registered accounting firm, regarding the consolidated financial statements of Hutchison China MediTech Limited

15.2	**	Consent of PricewaterhouseCoopers, an independent registered accounting firm, regarding the consolidated financial statements of Nutrition Science Partners Limited

15.3	**	Consent of PricewaterhouseCoopers Zhong Tian LLP, independent accountants, regarding the consolidated financial statements of Shanghai Hutchison Pharmaceuticals Limited

15.4	**	Consent of PricewaterhouseCoopers Zhong Tian LLP, independent accountants, regarding the consolidated financial statements of Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine Company Limited

15.5	**	Consent of Conyers Dill & Pearman

101.INS	**	XBRL Instance Document

101.SCH	**	XBRL Taxonomy Extension Schema Document

101.CAL	**	XBRL Taxonomy Extension Calculation Linkbase Document

101.LAB	**	XBRL Taxonomy Extension Label Linkbase Document

101.PRE	**	XBRL Taxonomy Extension Presentation Linkbase Document

101.DEF	**	XBRL Taxonomy Extension Definitions Linkbase Document


Audited Consolidated Financial Statements of Hutchison China MediTech Limited
Report of Independent Registered Public Accounting Firm			F-2
As at December 31, 2018 and December 31, 2017:
Consolidated Balance Sheets			F-4
For the Years Ended December 31, 2018, 2017 and 2016:
Consolidated Statements of Operations			F-5
Consolidated Statements of Comprehensive (Loss)/Income			F-6
Consolidated Statements of Changes in Shareholders' Equity			F-7
Consolidated Statements of Cash Flows			F-8
Notes to the Consolidated Financial Statements			F-9
Audited Consolidated Financial Statements of Shanghai Hutchison Pharmaceuticals Limited
Report of Independent Auditors			F-58
For the Years Ended December 31, 2018, 2017 and 2016:
Consolidated Income Statements			F-59
Consolidated Statements of Comprehensive Income			F-60
As at December 31, 2018 and December 31, 2017:
Consolidated Statements of Financial Position			F-61
For the Years Ended December 31, 2018, 2017 and 2016:
Consolidated Statements of Changes in Equity			F-62
Consolidated Statements of Cash Flows			F-63
Notes to the Consolidated Financial Statements			F-64
Audited Consolidated Financial Statements of Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine Company Limited
Report of Independent Auditors			F-88
For the Years Ended December 31, 2018, 2017 and 2016:
Consolidated Income Statements			F-89
Consolidated Statements of Comprehensive Income			F-90
As at December 31, 2018 and December 31, 2017:
Consolidated Statements of Financial Position			F-91
For the Years Ended December 31, 2018, 2017 and 2016:
Consolidated Statements of Changes in Equity			F-92
Consolidated Statements of Cash Flows			F-93
Notes to the Consolidated Financial Statements			F-94
Audited Consolidated Financial Statements of Nutrition Science Partners Limited
Report of Independent Auditors			F-120
For the Years Ended December 31, 2018, 2017 and 2016:
Consolidated Income Statements			F-121
Consolidated Statements of Comprehensive Income			F-122
As at December 31, 2018 and December 31, 2017:
Consolidated Statements of Financial Position			F-123
For the Years Ended December 31, 2018, 2017 and 2016:
Consolidated Statements of Changes in Equity			F-124
Consolidated Statements of Cash Flows			F-125
Notes to the Consolidated Financial Statements			F-126


Level 1		Inputs are unadjusted quoted prices in active markets for identical assets or liabilities.
Level 2		Inputs are quoted prices for similar assets or liabilities in active markets; or quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets.
Level 3		Inputs are unobservable inputs based on the Group's assumptions and valuation techniques used to measure assets or liabilities at fair value. The inputs require significant management judgment or estimation.


Buildings		20 years
Plant and equipment		5-10 years
Furniture and fixtures, other equipment and motor vehicles		4-5 years
Leasehold improvements		Shorter of (a) 5 years or (b) remaining term of lease

	As reported ASC 606		Adjustments		As if applied ASC 605

	(in US$'000)
Consolidated Statement of Operations
Total revenues	214,109		(698	)	213,411
Total operating expense	(306,750	)	—		(306,750	)

Loss from operations	(92,641	)	(698	)	(93,339	)
Total other income	5,986		—		5,986

Loss before income taxes and equity in earnings of equity investees	(86,655	)	(698	)	(87,353	)
Income tax expense	(3,964	)	—		(3,964	)
Equity in earnings of equity investees, net of tax	19,333		—		19,333

Net loss	(71,286	)	(698	)	(71,984	)
Less: Net income attributable to non-controlling interests	(3,519	)	2		(3,517	)

Net loss attributable to the Company	(74,805	)	(696	)	(75,501	)

	As reported ASC 606		Adjustments		As if applied ASC 605

	(in US$'000)
Consolidated Statement of Comprehensive Loss
Net loss	(71,286	)	(698	)	(71,984	)
Other comprehensive loss	(6,626	)	(31	)	(6,657	)

Total comprehensive loss	(77,912	)	(729	)	(78,641	)
Less: Comprehensive loss attributable to non-controlling interests	(2,566	)	2		(2,564	)

Total comprehensive loss attributable to the Company	(80,478	)	(727	)	(81,205	)

Hutchison China MediTech Limited

/s/ CHRISTIAN HOGG

Christian Hogg

Chief Executive Officer

Date: March 11, 2019