8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): June 19, 2017 (June 18, 2017)

Celanese Corporation

(Exact name of registrant as specified in its charter)

Delaware	001-32410	98-0420726
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)
222 W. Las Colinas Blvd., Irving, Texas		75039
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: (972) 443-4000

Not Applicable

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ¨

If an emerging growth company, 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. ¨

 Item 1.01 Entry into a Material Definitive Agreement.

Transaction Agreement

On June 18, 2017, Celanese Corporation, a Delaware corporation (the “Company”), through its subsidiaries, agreed with certain affiliates of The Blackstone Group L.P. to form a joint venture (the “Joint Venture”) which combines the Company’s cellulose derivatives business (the “Celanese CD Business”) and the Rhodia Acetow cellulose acetate business (the “Acetow Business”) formerly operated by Solvay S.A. and recently acquired by the Blackstone Entities (as defined below). The joint venture transaction (the “Transaction”) is subject to the terms and conditions of a Transaction Agreement (as defined below).

At the closing (the “Closing”), Celanese (as defined below) will cause the Celanese CD Business to be transferred to the Joint Venture in exchange for 70% of ownership interests in the Joint Venture, and the Blackstone Entities will cause the Acetow Business to be transferred to the Joint Venture (subject, solely with respect to the French business, to the completion of a French works council consultation process), in exchange for 30% of ownership interests in the Joint Venture (with such ownership percentages subject to adjustments pursuant to the Transaction Agreement based on the value of contributed assets and liabilities). Until the Closing, the Celanese CD Business and the Acetow Business will continue to operate wholly independently of each other.

The Transaction Agreement includes customary representations, warranties, and covenants by the parties, including representations and warranties by Celanese regarding the Celanese CD Business and the Blackstone Entities regarding the Acetow Business. The representations and warranties have been made solely for the benefit of the parties. The consummation of the Transaction is subject to customary closing conditions, including: (i) waiting periods, clearances and/or approvals of the European Union and other jurisdictions requiring antitrust or similar approvals shall have expired, been terminated or be obtained (as applicable), and (ii) completion of the internal reorganizations of the Celanese CD Business and the Acetow Business to facilitate the Closing and operation of the Joint Venture post-closing.

The Transaction Agreement may be terminated by Celanese and/or the Blackstone Entities under certain limited circumstances, including if the Closing is not consummated within one year of signing, which date may be extended by an additional 90 days, under certain circumstances. Upon the consummation of the Transaction, the parties and certain affiliates will enter into governance agreements that will contain restrictions on the transfer of the respective direct and indirect interests in the Partnerships (as defined below) and provisions relating to the management of the Joint Venture, tagalong rights, drag-along rights, preemptive rights, rights of first offer and certain exit rights.

In connection with the transactions contemplated by the Transaction Agreement, the Partnerships entered into commitment letters, each dated as of June 18, 2017, with Barclays Bank PLC, Credit Suisse AG, Deutsche Bank AG and certain of their respective affiliates pursuant to which the Joint Venture obtained commitments for credit facilities consisting of (i) senior secured and senior unsecured revolving credit facilities in an aggregate principal amount of $200 million, (ii) senior secured term loan facilities in an aggregate principal amount of $1,005 million, (iii) a senior unsecured bridge facility in an aggregate principal amount of $800 million, which bridge facility will backstop the proposed issuance of $800 million senior unsecured notes by a Joint Venture subsidiary on or prior to the Closing, and (iv) a senior unsecured term loan facility in an aggregate principal amount of $400 million. The credit facilities will be guaranteed by certain of the subsidiaries of the respective borrowers. Only the $65 million senior unsecured portion of the $200 million revolving credit facilities and the $400 million senior unsecured term loan credit facility will be guaranteed by the Company. The revolving credit facilities will also be available for ongoing working capital and other general corporate purposes of the applicable borrower and certain of its subsidiaries following completion of the Transaction. The proceeds of the debt financing are expected to be used to repay certain of the parties’ existing indebtedness including the short-term credit facility described below.

In addition, in connection with certain internal reorganizations contemplated by the Transaction Agreement, Celanese entered into a commitment letter dated as of June 18, 2017 with Barclays Bank PLC, pursuant to which Barclays Bank PLC will provide a short-term credit facility to be incurred by the entities owning the Celanese CD Business before Closing, the proceeds of which will be used to finance certain distributions by such entities to the Company before Closing. Upon consummation of the Transaction, the borrowings under such short-term facility will be repaid in full with the proceeds of debt financing received by the Joint Venture as described above.

The debt commitment letters referenced above contain conditions to funding of the debt financing customary for commitments of its type. Various economic terms of the debt financing are subject to change in the process of syndication.

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The distributions which will be allocated to each of the respective parties at Closing are subject to adjustments based on the respective amounts of net working capital (relative to a target), capital spending (between signing and the Closing relative to a target), cash, debt and certain debt-like items of the Celanese CD Business and the Acetow Business. In addition, distributions are subject to adjustments based on an agreed upon allocation of transaction expenses and financing fees, as well as an appropriate level of cash to be retained at the Partnerships.

At the Closing, the parties will also enter into various ancillary agreements, including, without limitation:

• an amended and restated partnership agreement for each of the Partnerships, together with amended and restated operating agreements of the general partners of the Partnerships;

• a transition services agreement, pursuant to which the Company and its subsidiaries will provide certain transition services to the Joint Venture;

• supply agreements, pursuant to which (a) subsidiaries of the Company will provide acetic acid, acetic anhydride, and ultra-high molecular weight polyethylene to the Joint Venture, and (b) the Joint Venture will provide acetate flake to subsidiaries of the Company to support its Clarifoil business;

• an intellectual property licensing agreement, pursuant to which a subsidiary of Celanese will license certain intellectual property to the Joint Venture; and

• a framework agreement with respect to the ownership interests in, and operation of, the Joint Venture.

In connection with the proposed Joint Venture, on June 18, 2017, Celanese US Holdings LLC, a limited liability company and subsidiary of the Company (“Celanese”), entered into a Transaction Agreement (the “Transaction Agreement”) by and among Celanese, BCP VII Jade Cayman Aggregator Ltd., a limited liability company (“Swordfish 1”), BCP VII Swordfish Aggregator L.P., a limited partnership (“Swordfish 2” and, together with Swordfish 1, the “Blackstone Entities”), Acetate UTP C.V., a limited partnership (“P1”), and Lower Tier Partnership Netherlands C.V., a limited partnership and a subsidiary of the Company (“P2” and, together with P1, the “Partnerships”). The Joint Venture structure will consist of one partnership to hold the primarily U.S. assets of the combined business and one partnership to hold the remaining assets of the combined business.

The foregoing summary of the Transaction Agreement does not purport to be a complete description and is qualified in its entirety by reference to the terms and conditions of the Transaction Agreement, a copy of which will be filed as an exhibit to a future periodic report of the Company.

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Item 7.01 Regulation FD Disclosure.

On June 19, 2017, Mark C. Rohr, Chairman and Chief Executive Officer, Scott M. Sutton, Chief Operating Officer, and Christopher W. Jensen, Executive Vice President and Chief Financial Officer, of the Company, will make a presentation to investors and analysts concerning the Transaction via a webcast hosted by the Company at 8:30 a.m. ET (7:30 a.m. CT). The webcast, press release, prepared remarks from Mark Rohr and a slide presentation may be accessed on our website at www.celanese.com under Investor Events & Presentations. A copy of the press release, the prepared remarks and the slide presentation posted for the webcast are attached to this Current Report as Exhibit 99.1, Exhibit 99.2 and Exhibit 99.3, respectively, and are incorporated herein solely for purposes of this Item 7.01 disclosure. During the webcast management may make, and the attached slide presentation and management's prepared remarks contain, references to certain Non-US GAAP financial measures. Non-US GAAP financial measures appearing in the slide presentation and management's prepared remarks are accompanied by the most directly comparable US GAAP financial measure. In addition, those Non-US GAAP financial measures are defined and reconciled to the most comparable US GAAP financial measure in our Current Non-US GAAP Financial Measures and Supplemental Information and Historical Non-US GAAP Financial Measures and Supplemental Information documents filed with this Current Report as Exhibit 99.4 and Exhibit 99.5 (and available on our website) and is incorporated herein solely for purpose of this Item 7.01 disclosure.*

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.	Description
99.1†	Press Release issued by the Company on June 18, 2017.*
99.2†	Prepared Remarks issued by the Company on June 18, 2017.*
99.3†	Presentation issued by the Company on June 18, 2017.*
99.4†	Current Non-US GAAP Financial Measures and Supplemental Information dated June 18, 2017.*
99.5†	Historical Non-US GAAP Financial Measures and Supplemental Information dated June 18, 2017.*

† Filed herewith.

* In connection with the disclosure set forth in Item 7.01, the information in Item 7.01 of this Current Report, including the exhibits attached hereto and incorporated by reference, is being furnished and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of such section. The information in Item 7.01 of this Current Report, including the exhibits, shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any incorporation by reference language in any such filing. This Current Report will not be deemed an admission as to the materiality of any information in this Current Report that is required to be disclosed solely by Regulation FD.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: June 19, 2017

Celanese Corporation
By:	/s/ James R. Peacock III
	James R. Peacock III
	Vice President, Deputy General Counsel and
	Corporate Secretary

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EXHIBIT INDEX

Exhibit No.	Description
99.1†	Press Release issued by the Company on June 18, 2017.*
99.2†	Prepared Remarks issued by the Company on June 18, 2017.*
99.3†	Presentation issued by the Company on June 18, 2017.*
99.4†	Current Non-US GAAP Financial Measures and Supplemental Information dated June 18, 2017.*
99.5†	Historical Non-US GAAP Financial Measures and Supplemental Information dated June 18, 2017.*

† Filed herewith.

* In connection with the disclosure set forth in Item 7.01, the information in Item 7.01 of this Current Report, including the exhibits attached hereto and incorporated by reference, is being furnished and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of such section. The information in Item 7.01 of this Current Report, including the exhibits, shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any incorporation by reference language in any such filing. This Current Report will not be deemed an admission as to the materiality of any information in this Current Report that is required to be disclosed solely by Regulation FD.

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EX-99.1

News Release

CELANESE AND BLACKSTONE TO FORM JOINT VENTURE IN ACETATE TOW

Brings together complementary tow portfolios to drive innovation and enhance cost competitiveness;

Proceeds from transaction to be deployed in high-growth businesses at Celanese

• Proposed joint venture (JV) to combine Celanese’s Cellulose Derivatives and Blackstone’s Rhodia Acetow businesses.

• Combination to create a global acetate tow supplier with increased ability to serve customers efficiently and reliably while enhancing opportunities for innovation and productivity.

• Celanese and Blackstone will own 70% and 30% of the JV, respectively.

• JV to distribute $1.6 billion in cash to Celanese at close.

• Transaction to be earnings per share neutral for Celanese in the first year and accretive thereafter.

DALLAS, NEW YORK AND LONDON, June 18, 2017: Celanese Corporation (NYSE: CE), a global technology and specialty materials company, and funds managed by Blackstone (NYSE: BX), one of the world’s leading investment firms, today announced a definitive agreement to form a JV that will create a global acetate tow supplier. Celanese and Blackstone will own 70 percent and 30 percent of the JV, respectively.

Transaction Overview

Under the terms of the agreement, Celanese will contribute its Cellulose Derivatives business unit, including its equity interest in existing JVs with China National Tobacco Corporation, and Blackstone will contribute its Rhodia Acetow business unit, which it recently acquired from Solvay. The new company is expected to generate 2017 annual pro forma revenue of approximately $1.3 billion with around 2,400 employees. The JV will have an extended global footprint that includes eight wholly-owned manufacturing facilities and three existing JV sites.

The new company will be well positioned to meet customers’ current and evolving needs efficiently while providing the highest level of quality and service. The complementary nature of the tow businesses and a combination of technology expertise will result in

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synergies mainly from optimization of supply chain networks and procurement of raw materials, energy, equipment, and other services.

“This is an exciting opportunity for Celanese to partner with Blackstone in a way that creates significant value for all stakeholders. The combination of these tow assets will enhance our ability to serve customers more efficiently and reliably from a global production footprint while also creating growth opportunities for employees,” said Mark Rohr, chairman and chief executive officer of Celanese. “Celanese has delivered strong results in the last several years through differentiated business models. This transaction gives us the opportunity to partially monetize Cellulose Derivatives and reallocate significant capital to higher growth businesses within Celanese to accelerate our growth momentum.”

Lionel Assant, Head of Private Equity Europe at Blackstone, said: “The combination of these two companies provides an excellent opportunity to create a new, international business focused on innovation and growth to the benefit of its customers and employees. We are excited to work with Celanese on this strategic development.”

Governance and Management

Upon closing, the JV will be governed by a Board of Directors consisting of three directors appointed by Celanese and two by Blackstone. The board, management team, and name of the new company will be decided at a later date.

Financial Highlights

Related to this transaction, commitments for $2.2 billion of debt have been received by the partners on behalf of the JV. The debt is expected to be supported by cash generation at the JV and is largely non-recourse to Celanese and Blackstone. An initial dividend of approximately $1.6 billion will be distributed to Celanese following the formation of the JV. Celanese is expected to deploy the proceeds in value uplift opportunities, including investment in organic growth, acquisitions, share repurchases and debt reduction.

Pursuant to the terms of the agreement, once approved and upon closing, Celanese is expected to consolidate JV results in its financial statements, subject to Blackstone’s minority interest.

Celanese is committed to maintaining its investment grade rating.

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Approvals and Time to Close

The formation of the JV is subject to regulatory approvals and customary closing conditions, which will determine the timing of close. Until then, Celanese’s Cellulose Derivatives and Blackstone’s Rhodia Acetow will continue to operate independently.

Conference Call with Celanese Management at 8:30 a.m. Eastern, June 19, 2017

Celanese management will host a conference call tomorrow at 8:30 a.m. Eastern Daylight time.Mark Rohr, chairman and chief executive officer, Scott Sutton, chief operating officer, and Chris Jensen, chief financial officer, will be available to discuss the JV, Celanese’s broader corporate strategy, and capital allocation priorities. The Company’s presentation and prepared remarks can be found on its website at www.celanese.com under Investor Relations/Events and Presentations. This call will be available by webcast at www.celanese.com in the Investor Relations section or by phone:

Dial-in Number: 1-866-235-9919

International Dial-In Number: 1-412-902-4105

Please ask for the Celanese Webcast

Alternatively, to enter the call immediately without waiting for operator assistance, attendees may pre-register for the call by clicking the link below. Once registered, attendees will receive an Outlook calendar invite with the date and time of call, the dial-in phone number and the unique attendee pin which is sent automatically to the email address provided.

http://dpregister.com/10109308

An audio replay and transcript of the webcast will be available at the same link. The materials will be filed with the Securities and Exchange Commission on a Form 8-K prior to the call.

Celanese Contacts:

Investor Relations	Media Relations – Global	Media Relations Asia (Shanghai)	Media Relations Europe (Germany)
Surabhi Varshney	W. Travis Jacobsen	Helen Zhang	Jens Kurth
+1 972 443 3078	+1 972 443 3750	+86 21 3861 9279	+49(0)69 45009 1574
surabhi.varshney@celanese.com	william.jacobsen@celanese.com	lan.zhang@celanese.com	j.kurth@celanese.com

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Celanese Corporation

222 West Las Colinas Blvd.

Suite 900N

Irving, Texas 75039

Blackstone Contacts:

Andrew Dowler

+44 (0)20 7451 4275

andrew.dowler@blackstone.com

About Celanese

Celanese Corporation is a global technology leader in the production of differentiated chemistry solutions and specialty materials used in most major industries and consumer applications. Our two complementary business cores, Acetyl Chain and Materials Solutions, use the full breadth of Celanese's global chemistry, technology and business expertise to create value for our customers and the corporation. As we partner with our customers to solve their most critical business needs, we strive to make a positive impact on our communities and the world through The Celanese Foundation. Based in Dallas, Celanese currently employs approximately 7,500employees worldwide and had 2016 net sales of $5.4 billion. For more information about Celanese Corporation and its product offerings, visit www.celanese.com or our blog at www.celaneseblog.com.

All registered trademarks are owned by Celanese International Corporation or its affiliates.

About Blackstone

Blackstone is one of the world’s leading investment firms. We seek to create positive economic impact and long-term value for our investors, the companies we invest in, and the communities in which we work. We do this by using extraordinary people and flexible capital to help companies solve problems. Our asset management businesses, with over $360 billion in assets under management, include investment vehicles focused on private equity, real estate, public debt and equity, non-investment grade credit, real assets and secondary funds, all on a global basis. Further information is available at www.blackstone.com. Follow Blackstone on Twitter @Blackstone.

About Rhodia Acetow

Rhodia Acetow, headquartered in Freiburg, Germany, is a global leader in cellulose acetate tow used in the manufacturing of cigarette filters. It operates plants in Germany, Brazil, France, Russia and the USA.

Forward-Looking Statements

This release may contain "forward-looking statements," which include information concerning the Company's plans, objectives, goals, strategies, future revenues, synergies or performance, financing needs and other information that is not historical information. All forward-looking statements are based upon current expectations and beliefs and various assumptions, including the announced joint venture. There can be no assurance that the Company will realize these expectations or that these beliefs will prove correct. There are a number of risks and uncertainties that could cause actual results to differ materially from the results expressed or implied in the forward-looking statements contained in this release, including with respect to the joint venture. These risks and uncertainties include, among other things: changes in general economic, business, political and regulatory conditions in the countries or regions in which we operate; the length and depth of product and industry business cycles, particularly in the automotive, electrical, textiles, electronics and constructionindustries; changes in the price and availability of raw materials, particularly changes in the demand for, supply of, and market prices of ethylene, methanol, natural gas, wood pulp and fuel oil and the prices for electricity and other energy sources; the ability to pass increases in raw material prices on to customers or otherwise improve margins through price

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increases; the ability to maintain plant utilization rates and to implement planned capacity additions and expansions; the ability to reduce or maintain their current levels of production costs and to improve productivity by implementing technological improvements to existing plants; the ability to identify desirable potential acquisition targets and to consummate acquisition or investment transactions consistent with the Company's strategy; increased price competition and the introduction of competing products by other companies; changes in the degree of intellectual property and other legal protection afforded to our products or technologies, or the theft of such intellectual property; compliance and other costs and potential disruption or interruption of production or operations due to accidents, interruptions in sources of raw materials, cyber security incidents, terrorism or political unrest or other unforeseen events or delays in construction or operation of facilities, including as a result of geopolitical conditions, the occurrence of acts of war or terrorist incidents or as a result of weather or natural disasters; potential liability for remedial actions and increased costs under existing or future environmental regulations, including those relating to climate change; potential liability resulting from pending or future litigation, or from changes in the laws, regulations or policies of governments or other governmental activities in the countries in which we operate; changes in currency exchange rates and interest rates; our level of indebtedness, which could diminish our ability to raise additional capital to fund operations or limit our ability to react to changes in the economy or the chemicals industry; and various other factors discussed from time to time in the Company's filings with the Securities and Exchange Commission.

In addition to the risks and uncertainties identified above, the following risks and uncertainties, among others, could cause the Company’s actual results of operations regarding the joint venture to differ materially from the results expressed or implied in this press release: the timing or ultimate completion of the transaction as the transaction is subject to closing conditions, including antitrust clearance; the expected benefits of the transaction may not materialize as expected; ability to successfully implement the integration strategy for the joint venture; and the ability to ensure continued performance or market growth of the combined tow businesses. Any forward-looking statement speaks only as of the date on which it is made, and the Company undertakes no obligation to update any forward-looking statements to reflect events or circumstances after the date on which it is made or to reflect the occurrence of anticipated or unanticipated events or circumstances.

Non-GAAP Financial Measures

Presentation

This document presents the Company's business segments in two subtotals, reflecting our two cores, the Acetyl Chain and Materials Solutions, based on similarities among customers, business models and technical processes. As described in the Company's annual report on Form 10-K and quarterly reports on Form 10-Q, the Acetyl Chain includes the Company's Acetyl Intermediates segment and the Industrial Specialties segment. Materials Solutions includes the Company's Advanced Engineered Materials segment and the Consumer Specialties segment. The Company’s cellulose derivatives business is included in the Consumer Specialties segment.

Use of Non-US GAAP Financial Information

This release uses the following Non-US GAAP measures: adjusted EBIT, adjusted EBIT margin, adjusted earnings per share, return on invested capital (adjusted) and free cash flow. These measures are not recognized in accordance with US GAAP and should not be viewed as an alternative to US GAAP measures of performance or liquidity. The most directly comparable financial measure presented in accordance with US GAAP in our consolidated financial statements for adjusted EBIT is net earnings (loss) attributable to Celanese Corporation; for adjusted EBIT margin is operating margin; for adjusted earnings per share is earnings (loss) from continuing operations attributable to Celanese Corporation per common share-diluted; for return on invested capital (adjusted) is net earnings (loss) attributable to Celanese Corporation divided by the sum of the average of beginning and end of the year short- and long-term debt and Celanese Corporation stockholders' equity; and for free cash flow is net cash provided by (used in) operations.

Definitions of Non-US GAAP Financial Measures

Adjusted EBIT is a performance measure used by the Company and is defined by the Company as net earnings (loss) attributable to Celanese Corporation, plus (earnings) loss from discontinued operations, less interest income, plus interest expense, plus refinancing expense and taxes, and further adjusted for Certain Items (refer to Table 8 of our Non-US GAAP Financial Measures and Supplemental Information document). We may provide guidance on adjusted EBIT but are unable to reconcile forecasted adjusted EBIT to a US GAAP financial measure without unreasonable efforts because a forecast of Certain Items, such as mark-to-market pension gains and losses, which may be significant, is not practical. Adjusted EBIT margin is defined by the Company as adjusted EBIT divided by net sales.

Adjusted EBIT by core (i.e. Acetyl Chain and/or Materials Solutions) may also be referred to by management as core income. Adjusted EBIT margin by core may also be referred to by management as core income margin. Adjusted EBIT by business segment may also be referred to by management as segment income. Adjusted EBIT margin by business segment may also be referred to by management as segment income margin.

Adjusted earnings per share is a performance measure used by the Company and is defined by the Company as earnings (loss) from continuing operations attributable to Celanese Corporation, adjusted for income tax (provision) benefit, Certain Items, and refinancing and related expenses, divided by the number of basic common shares and dilutive restricted stock units and stock options calculated using the treasury method. We may provide guidance on adjusted earnings per share but are unable to reconcile forecasted adjusted earnings per share to a US GAAP financial measure without unreasonable

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efforts because a forecast of Certain Items, such as mark-to-market pension gains and losses, which may be significant, is not practical.

Note: The income tax expense (benefit) on Certain Items ("Non-GAAP adjustments") is determined using the applicable rates in the taxing jurisdictions in which the Non-GAAP adjustments occurred and includes both current and deferred income tax expense (benefit). The income tax rate used for adjusted earnings per share approximates the midpoint in a range of forecasted tax rates for the year. This range may include certain partial or full-year forecasted tax opportunities and related costs, where applicable, and specifically excludes changes in uncertain tax positions, discrete recognition of GAAP items on a quarterly basis, other pre-tax items adjusted out of our GAAP earnings for adjusted earnings per share purposes and changes in management's assessments regarding the ability to realize deferred tax assets for GAAP. In determining the adjusted earnings per share tax rate, we reflect the impact of foreign tax credits when utilized, or expected to be utilized, absent discrete events impacting the timing of foreign tax credit utilization. We analyze this rate quarterly and adjust it if there is a material change in the range of forecasted tax rates; an updated forecast would not necessarily result in a change to our tax rate used for adjusted earnings per share. The adjusted tax rate is an estimate and may differ from the actual tax rate used for GAAP reporting in any given reporting period. Table 3a of our Non-US GAAP Financial Measures and Supplemental Information document summarizes the reconciliation of our estimated GAAP effective tax rate to the adjusted tax rate. The estimated GAAP rate excludes discrete recognition of GAAP items due to our inability to forecast such items. As part of the year-end reconciliation, we will update the reconciliation of the GAAP effective tax rate to the adjusted tax rate for actual results.

Return on invested capital (adjusted) is defined by the Company as adjusted EBIT, tax effected using the adjusted tax rate, divided by the sum of the average of beginning and end of the year short- and long-term debt and Celanese Corporation stockholders' equity. We believe that return on invested capital (adjusted) provides useful information to management, investors, analysts and other parties in order to assess our income generation from the point of view of our stockholders and creditors who provide us with capital in the form of equity and debt and whether capital invested in the Company yields competitive returns. In addition, achievement of certain predetermined targets relating to return on invested capital (adjusted) is one of the factors we consider in determining the amount of performance-based compensation received by our management.

Free cash flow is a liquidity measure used by the Company and is defined by the Company as cash flow from operations, less capital expenditures on property, plant and equipment, and adjusted for capital contributions from or distributions to Mitsui & Co., Ltd. ("Mitsui") related to our methanol joint venture, Fairway Methanol LLC ("Fairway").

Reconciliation of Non-US GAAP Financial Measures

Reconciliations of the Non-US GAAP financial measures used in this press release to the comparable US GAAP financial measure, together with information about the purposes and uses of Non-US GAAP financial measures, are included in our Non-US GAAP Financial Measures and Supplemental Information documents dated June 18, 2017 filed as an exhibit to our Current Report on Form 8-K filed with the SEC on June 19, 2017 and also available on our website at www.celanese.com under Financial Information, Non-GAAP Financial Measures, or at this link: http://investors.celanese.com/interactive/lookandfeel/4103411/Non-GAAP.PDF.

Results Unaudited

The results in this document, together with the adjustments made to present the results on a comparable basis, have not been audited and are based on internal financial data furnished to management. Quarterly results should not be taken as an indication of the results of operations to be reported for any subsequent period or for the full fiscal year.

Supplemental Information

Additional information about our prior period performance is included in our Quarterly Reports on Form 10-Q and in our Non-US GAAP Financial Measures and Supplemental Information document.

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EX-99.2

Celanese Blackstone Acetate Tow Joint Venture Comments

Surabhi Varshney, Celanese Corporation, Vice President, Investor Relations

Welcome to the Celanese Corporation recording to discuss the agreement to form an Acetate tow joint venture with Blackstone. The date of this recording is June 18, 2017. Please note that no portion of this presentation may be rebroadcast or reproduced in any form without the prior written consent of Celanese.

My name is Surabhi Varshney, Vice President of Investor Relations. Today you will be hearing from Mark Rohr, Chairman and Chief Executive Officer, who will review the proposed joint venture, broader Celanese strategy and capital allocation priorities.

The Acetate tow joint venture press release was distributed via business wire this evening and posted on our website, www.celanese.com, in the Investor Relations section along with the slides. As a reminder, some of the matters discussed today and included in our presentations may include forward-looking statements concerning, for example, Celanese Corporation's future objectives and results. Please note the cautionary language contained in the slides. Also, some of the matters discussed and presented include references to non-GAAP financial measures. Explanations of these measures, comparable GAAP measures and reconciliations to the comparable GAAP measures are included on our website in the Investor Relations section under Financial Information. The press release, presentation, prepared comments, and non-GAAP information documents are being furnished to the SEC in a Current Report on Form 8-K.

I'd like to turn it over to Mark now.

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Mark Rohr, Celanese Corporation, Chairman and Chief Executive Officer

Thanks, Surabhi, and welcome to everyone listening in today. I am very pleased to announce that we just executed an agreement with Blackstone to form a new global company to service the acetate tow markets. We are bringing together two robust and complementary acetate tow businesses, the Celanese Cellulose Derivatives business and Blackstone’s recently acquired Rhodia Acetow, to form a “European Based” company positioned to better serve and support global customers and other stakeholders. Before diving into the transaction details, I’ll comment on the significance of this transaction for Celanese and then wrap up with a discussion on the uses of cash and the actions we are taking to further accelerate our growth.

In the last five years, Celanese has re-defined itself and how it creates value. In 2012, we set a new direction by establishing a core structure focused on value-delivery; we created growth driven business models; and we built a corporate culture with the agility to focus and succeed where others have not. Through that process our corporate mindset has pivoted from one relying on underlying market performance for growth to one now focused on creating growth based on pro-active targeting, our ability to engineer customer solutions and a willingness to focus all resources within our control on opportunities before us. This restructure has resulted in a unique enterprise with an enviable product portfolio, with leadership positions and technical superiority across segments. Couple these advantages with differentiated business models designed to maximize profitability across all market conditions and you can create growth beyond that expected by the industry.

Today the company is positioned to provide robust cash flow and strong financial results with predictability and modest volatility. Since 2012 adjusted earnings per share CAGR has grown at roughly 13% and over the same time frame we’ve seen free cash flow CAGR growth of roughly 26%.We have maintained our demands for a high return as reflected in our 18% adjusted return on invested capital versus a peer average of 11%. Total shareholder return has been one of the highest in the industry over that time frame at about 120% since 2012 while shareholders have also received a cumulative cash return of approximately $2 billion from dividends and share repurchases.

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As you know we have accomplished this while also systematically addressing investor concerns and overcoming cumulative headwinds that stack up to nearly half a billion dollars since 2012. Celanese has overcome tangible headwinds like the Euro decline, the expiration of a key methanol supply contract, a decline in Ibn Sina earnings from MTBE, and a recent decline in the tow market. This specific transaction, while financially beneficial to investors, I believe also addresses investor anxiety over the future of our acetate tow business and will help shift attention to growth opportunities before us. We have delivered and continue to deliver tremendous value creation for our shareholders and with this new opportunity we believe we will further accelerate performance trends helping investors realize a share value consistent with the full potential of our growth portfolio.

Turning now to the acetate tow business. Our management of this business has delivered high levels of cash and earnings for Celanese over the last five years. Globally there is approximately 800,000 tons of tow capacity in place to serve customers around the world with China playing a critical role in the industry. Our customers highly value the reliability and security of supply as well as superior product quality and fiber technology provided by Celanese. However, the industry has recently experienced uncertainties and a fundamental change in demand patterns in China. The world of tow can be thought of in two parts - the first is the captive supply within China, and the second is the merchant market in the rest of the world which includes China imports. At its peak, China imported about 120,000 tons of tow but that amount sharply declined to approximately one-fifth of that in 2016 as Chinese capacity expansions came on stream. As a result the global asset utilization rates serving the merchant market dropped from near 100 percent to 80 percent.

This joint venture combines two complementary portfolios creating a global supplier with the technology needed to drive efficiencies and provide reliable and cost efficient supply for this industry. Celanese will have 70 percent financial ownership of the JV while Blackstone will have the other 30 percent. The new company will create a global leader in acetate tow focused on growth, innovation, and product differentiation. Revenue for the JV will be $1.3 billion with adjusted EBITDA margins of about 40%, both 2017 pro forma estimates. The JV will be governed by a Board of Directors consisting of three directors appointed by Celanese and two by Blackstone. Celanese will contribute three wholly-owned production

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sites and its equity interest in three existing JVs in China while Blackstone will contribute five wholly-owned production sites. The resulting footprint will establish a truly global supply base with enhanced capability to efficiently and reliably support customers worldwide. Headquartered in Amsterdam, this joint venture will also have strong technical service teams in Europe and the US to support all customers. The JV will be better positioned to invest in support of transforming consumer trends such as smokeless tobacco and super slim cigarettes as well as new uses of cellulose acetate that are emerging in importance. Combining our technical expertise and industry knowledge boosts the business case for continued investments in research and assets in a very competitive industry with declining secular demand.

The venture established will leverage strong cash flows made possible by the combination of these complementary assets and technology to deliver synergies from optimization of supply chain networks and procurement scale.

The tow JV will take on $2.2 billion in debt, $1.8 billion of which is non-recourse to the parents. This debt level is supported by strong underlying cash flow and is sustainable for a stand-alone company. Of the $2.2 billion $0.6 billion will be used by Blackstone to pay down existing debt contributed to the JV and a $1.6 billion initial dividend will be distributed to Celanese. The synergies noted previously and combined operating results will be more than sufficient to cover the interest cost of the debt taken on in the formation of the JV and as such we expect this venture to be adjusted EPS neutral for Celanese from the start and then be approximately 50 to 75 cents accretive in year three after close. Keep in mind, this transaction will need regulatory approval in key jurisdictions and those approvals will determine the closing date.

The structure of the joint venture combined with the dividend payout de-risks and improves the future value proposition for our tow business while simultaneously monetizing and re-allocating the capital. It also establishes various options for a potential exit from the business in a few years as synergies are realized. Let me now switch to sharing with you the clear set of opportunities we see at Celanese and how we plan on deploying this capital to activate these growth options.

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Looking first at the Acetyl Chain. This business is a technology leverage play and is also uniquely positioned with the only truly global integrated value chain. The Acetyl commercial model leverages optionality and operational flexibility to maximize profits. The team’s agility in simultaneously managing decisions on product, production location, selling location, trade-flow channels, and many other instantaneous value characteristics is fundamental to the success of the model. While the molecules themselves may be fungible, the chain’s go-to-market strategy has elevated segment income margin from high single digits to a 12-16 percent range, far above peers. And looking forward, we believe multiple layers of growth are available for the chain. Market leadership positions and a cost advantaged global footprint will allow the chain to capture an outsized share of underlying GDP growth. Beyond GDP, there are opportunities to grow through innovation in downstream derivatives supporting the coatings industry and to further extend the chain. There are also partnership and M&A options that could build on the success of the chain. Considering all I have mentioned, we expect the chain business to continue to grow and generate robust cash flow through this decade.

Turning next to engineered materials. The business has transformed into a solutions and project-based enterprise with demonstrated growth and powerful financial results. Segment income for engineered materials, which excludes affiliates, increased 113 percent since 2014 and margins have expanded over 1300 basis points. Underlying this success is one of the broadest polymer platforms and effective customer engagement processes which enable us to find an abundance of projects and quickly screen those for winners while revealing market trends to facilitate additional success. Today the organization has learned to manage the complexity of juggling nearly 5000 opportunities and we are on track to commercialize nearly 2,000 of those this calendar year. These improvements are driving high single digit volume growth and high margins - far above the underlying industry growth trends and ahead of comparable peers.

This dramatic transformation has created a long runway for profitable growth in engineered materials. Once the model was proven to work organically, the next step was to translate this success to businesses gained through bolt-on acquisitions. The recently completed SO.F.TER. and Nilit acquisitions allow us to apply the model to additional polymer platforms, markets, and new customers. The tool set for

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engineered materials is expansive and the ability to accelerate growth is totally within our control by extending our capabilities and capacities. Simultaneously the Celanese teams are developing strong M&A and integration capabilities. These steps serve as a foundation to leverage the dramatic growth in cash flow we are experiencing to create a step-change in valuation.

If you look back at our 2016 cash flow projections, we forecasted $2.5 billion of free cash flow generated in the three year period including 2018. We are well on track to meet or exceed this number. We are now working on business plans beyond 2018 to 2020 and we expect to generate three year free cash flows above this historical rate. Taken together Celanese expects free cash flow of $4.6 billion over this five year period before we add the $1.6 billion contribution from this transaction. That amounts to more than $6.2 billion in cash and we have specific priorities for its use. We are committed to maintaining our investment grade rating and will spend approximately $800 million of the transaction proceeds to do so. We expect to return a similar amount to shareholders shortly after close through share buy backs in addition to the commitment of a 50 percent increase in cash dividend. Altogether, over the next three years, after share repurchases, dividends, and debt payments, we expect at least $2 billion of cash to be available to fund opportunities that generate the absolute highest returns like investing in our growth businesses. Through this process, we have no intention of letting the cash sit idle on our balance sheet for any meaningful period of time.

Stepping back, the idea is to reinforce the perpetual cycle of earnings and cash generation that will take Celanese to the next level of growth. We clearly see the opportunities ahead of us and we have aligned our resources so we can take advantage of them to maximize outsized value creation for shareholders. Essentially we are de-risking and creating cash flow expansion for the acetate tow business, monetizing part of those future cash flows early and are re-allocating the unlocked cash to drive aggressive growth.

Thank you for listening in today, and I look forward to your questions Monday morning on the conference call.

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EX-99.3

Celanese and Blackstone to Form Joint Venture in Acetate Tow J U N E 1 8 , 2 0 1 7 Combines complementary tow portfolios to drive innovation and enhance cost competitiveness Proceeds from transaction to be deployed in high-growth businesses at Celanese

2A C E T A T E T O W J V – J U N E 2 0 1 7 Disclosures Forward-Looking Statements This presentation contains “forward-looking statements,” which include information concerning the Company’s plans, objectives, goals, strategies, future revenues, synergies, or performance, financing needs and other information that is not historical information. All forward-looking statements are based upon current expectations and beliefs and various assumptions, including the announced joint venture transaction. There can be no assurance that the Company will realize these expectations or that these beliefs will prove correct. There are a number of risks and uncertainties that could cause actual results to differ materially from the results expressed or implied in the forward-looking statements contained in this presentation, including with respect to the joint venture. These risks and uncertainties include, among other things: changes in general economic, business, political and regulatory conditions in the countries or regions in which we operate; the length and depth of product and industry business cycles, particularly in the automotive, electrical, textiles, electronics and construction industries; changes in the price and availability of raw materials, particularly changes in the demand for, supply of, and market prices of ethylene, methanol, natural gas, wood pulp and fuel oil and the prices for electricity and other energy sources; the ability to pass increases in raw material prices on to customers or otherwise improve margins through price increases; the ability to maintain plant utilization rates and to implement planned capacity additions and expansions; the ability to reduce or maintain current levels of production costs and to improve productivity by implementing technological improvements to existing plants; increased price competition and the introduction of competing products by other companies; changes in the degree of intellectual property and other legal protection afforded to our products or technologies, or the theft of such intellectual property; compliance and other costs and potential disruption or interruption of production or operations due to accidents, interruptions in sources of raw materials, cyber security incidents, terrorism or political unrest or other unforeseen events or delays in construction or operation of facilities, including as a result of geopolitical conditions, the occurrence of acts of war or terrorist incidents or as a result of weather or natural disasters; potential liability for remedial actions and increased costs under existing or future environmental regulations, including those relating to climate change; potential liability resulting from pending or future litigation, or from changes in the laws, regulations or policies of governments or other governmental activities in the countries in which we operate; changes in currency exchange rates and interest rates; our level of indebtedness, which could diminish our ability to raise additional capital to fund operations or limit our ability to react to changes in the economy or the chemicals industry; and various other factors discussed from time to time in the Company’s filings with the Securities and Exchange Commission. In addition to the risks and uncertainties identified above, the following risks and uncertainties, among others, could cause the Company’s actual results of operations regarding the joint venture to differ materially from the results expressed or implied in this presentation: the timing or ultimate completion of the transaction as the transaction is subject to closing conditions, including antitrust clearance; the benefits of the transaction may not materialize as expected; ability to successfully implement the integration strategy for the joint venture; and the ability to ensure continued performance or market growth of the combined tow businesses. Any forward-looking statement speaks only as of the date on which it is made, and the Company undertakes no obligation to update any forward-looking statements to reflect events or circumstances after the date on which it is made or to reflect the occurrence of anticipated or unanticipated events or circumstances. Results Unaudited The results in this document, together with the adjustments made to present the results on a comparable basis, have not been audited and are based on internal financial data furnished to management. Quarterly results should not be taken as an indication of the results of operations to be reported for any subsequent period or for the full fiscal year. Presentation This document presents the Company’s business segments in two subtotals, reflecting our two cores, the Acetyl Chain and Materials Solutions, based on similarities among customers, business models and technical processes. As described in the Company’s annual report on Form 10-K and quarterly reports on Form 10-Q, the Acetyl Chain includes the Company’s Acetyl Intermediates segment and the Industrial Specialties segment. Materials Solutions includes the Company’s Advanced Engineered Materials segment and the Consumer Specialties segment. The Consumer Specialties segment includes the Company’s Cellulose Derivatives business. Non-GAAP Financial Measures This presentation, and statements made in connection with this presentation, refer to non-GAAP financial measures. For more information on the non-GAAP financial measures used by the Company, including the most directly comparable GAAP financial measure for each non-GAAP financial measures used, including definitions and reconciliations of the differences between such non-GAAP financial measures and the comparable GAAP financial measures, please refer to the Non-US GAAP Financial Measures and Supplemental Information documents available on our website, www.celanese.com, under Investor Relations/Financial Information/Non-GAAP Financial Measures.

3A C E T A T E T O W J V – J U N E 2 0 1 7 Agenda > Value creation at Celanese > Tow transaction de-risks portfolio and unlocks tremendous value > Clear path to accelerate growth

4A C E T A T E T O W J V – J U N E 2 0 1 7 …drives value creation at Celanese Structural and commercial uniqueness... Competitive Advantages Differentiated Business Models LEADERSHIP POSITIONS MANAGING COMPLEXITY GLOBAL PRESENCE BROAD PRODUCT PORTFOLIO FLEXIBLE MANUFACTURING & SUPPLY CHAIN ADVANTAGED COST POSITIONS WINNING CULTURE & MINDSET + MARKET PLACE PRESENCE GLOBAL ASSETS & RESOURCES BROADEST MATERIALS PORTFOLIO DIFFERENTIATOR CAPABILITIES PRODUCTIVITY UNPARALLELED CHOICES EXPANDED FLEXIBILITY EXCEPTIONAL EXECUTION COMPETITIVE ADVANTAGES DIFFERENTIAL ACTIONS DIFFERENTIAL MARGIN PERFORMANCE ACETYL CHAIN #1 OR #2 IN OUR MARKETS LOW-COST OPERATIONS ADVANTAGED TECHNOLOGY HIGHLY INTEGRATED VALUE CHAIN BEST PIPELINE MANAGEMENT SYSTEM COMPLETE PACKAGECUSTOMER ROBUST OPPORTUNITY PIPELINE ADVANCED ENGINEERED MATERIALS (AEM) + CUSTOMER NEEDS C US TOMER M ATERIAL PART PIPELINE AGGREGATION & EXECUTION MACHINE Customer Engagement to Map Project Options Translation of Wins Real-time Screening Process Programming of Resources Prioritized Solution Development Identification of Customer Trends

5A C E T A T E T O W J V – J U N E 2 0 1 71. 2015 free cash flow excludes payment of $177 million related to the termination of an existing supplier agreement 2. 2016 free cash flow excludes voluntary payment of $300 million for pension deleveraging …supported by strong commercial and operational fundamentals A track record of robust growth... 2012 2013 2014 2015 2016 2017F $4.07 $4.50 $5.67 $6.02 $6.61 ~8-11% GROWTH 2012 2013 2014 2015 2016 2017F $361 $392 $548 $7331 $9232 ~$850 13% CAGR 2012-16 26% CAGR 2012-16 2012 2013 2014 2015 2016 17.5% 16.2% 17.8% 18.6% 19.4% $88 $247 $394 $594 $701 18% 2012 2013 2014 2015 2016 CELANESE AVG. ADJUSTED ROIC 11% PEER MEAN ROIC China Eastman Celanese Daicel Solvay Other 2016 Acetate Tow Capacity ADJUSTED EPS FREE CASH FLOW I N M I L L I O N S

6A C E T A T E T O W J V – J U N E 2 0 1 7 Growth reinforced by capital stewardship... 1. ROIC for proxy peers is defined as Net Operating Profit After Tax divided by the average Invested Capital at the beginning and ending of each measurement period. ROIC for proxy peers is per Bloomberg. ROIC for Celanese is per Celanese non-GAAP disclosure Proxy peers include ALB, APD, ASH, ECL, EMN, FMC, HUN, MON, PPG, PX, RPM, VAL 2. Cumulative change in market cap through end of Q1 2017 3. Bloomberg total shareholder return from start of 2012 through end of Q1 2017 …has generated total shareholder return of ~120%3 2012 2013 2014 2015 2016 2017F $4.07 $4.50 $5.67 $6.02 $6.61 ~8-11% GROWTH 2012 2013 2014 2015 2016 2017F $361 $392 $548 $7331 $9232 ~$850 13% CAGR 2012-16 26% CAGR 2012-16 2012 2013 2014 2015 2016 17.5% 16.2% 17.8% 18.6% 19.4% $88 $247 $394 $594 $701 18% 2012 2013 2014 2015 2016 CELANESE AVG. ADJUSTED ROIC 11% PEER MEAN ROIC China Eastman Celanese Daicel Solvay Other 2016 Acetate Tow Capacity $0.09 $0.9 $2.4 $2.7 $3.2 $5.1 -$0.2 $0.3 $0.7 $1.3 $2.0 2012 2013 4 2015 2016 2017F2 ADJUSTED ROIC1 2 0 1 2 - 2 0 1 6 MARKET CAP AND CASH RETURN I N B I L L I O N S A rigor in capital deployment that delivers outsized returns… …and growing market cap and returning cash to shareholders CUMULATIVE CHANGE IN AVERAGE MARKET CAP SINCE 2011 CUMULATIVE DIVIDENDS CUMULATIVE SHARE REPURCHASES

7A C E T A T E T O W J V – J U N E 2 0 1 7 Numerous headwinds identified and addressed Taking steps to overcome the remaining headwind – tow > Currency > Industrial Ethanol > Methanol Contract Expiration > Decline in AEM Affiliate Earnings > Complexity in AEM > Weakness in Acetyl Chain Margins OFFSET OFFSET OFFSET OFFSET OFFSET OFFSET 2012-2017 HEADWINDS

8A C E T A T E T O W J V – J U N E 2 0 1 71. Celanese estimates 2. Rhodia Acetow assets recently acquired by Blackstone ...and has delivered high levels of cash and earnings growth Acetate tow is a high-value global business… > Capacity ~270 kT > Most production in JVs with China National Tobacco Corporation (CNTC) > Celanese JVs have the largest share of the Chinese market > Imports into China have dropped by 75% over recent years > Capacity ~540 kT > Four global players INSIDE CHINAOUTSIDE CHINA ACETATE TOW CAPACITY 2 0 1 6 2012 2013 2014 2015 2016 2017F $4.07 $4.50 $5.67 $6.02 $6.61 ~8-11% GROWTH 2012 2013 2014 2015 2016 2017F $361 $392 $548 $7331 $9232 ~$850 13% CAGR 2012-16 26% CAGR 2012-16 2012 2013 2014 2015 2016 17.5% 16.2% 17.8% 18.6% 19.4% $88 $247 $394 $594 $701 18% 2012 2013 2014 2015 2016 CELANESE AVG. ADJUSTED ROIC 11% PEER MEAN ROIC China Eastman Celanese Daicel Solvay Other 2016 Acetate Tow Capacity ~810 kT TOTAL GLOBAL CAPACITY1 CHINA EASTMANCELANESE DAICEL SOLVAY2 OTHER

9A C E T A T E T O W J V – J U N E 2 0 1 71. GAMA data, Euromonitor, Celanese estimates 2. Stick Equivalent Recent shifts in Chinese demand pattern… 2011-2014 2014-2020E CHINA CIGARETTES CHINA IMPORT VOLUME (KT)ROW CIGARETTES IMPORT % OF CHINESE TOW DEMAND CAGR CAGR -0.7% -1.5% 2012 2013 2014 2015 2016E 2017E 2018E 2019E 2020E 6.3 6.3 6.26.2 5.9 5.9 5.8 5.7 5.6 5.6 2011 2012 I M P O R T % I M P O R T V O L U M E ( K T ) 2013 2014 2015 2016E 2017E 2018E2011 200 160 120 80 40 0 50% 40% 30% 20% 10% 0% I M P O R T % I M P O R T V O L U M E ( K T ) 200 160 120 80 40 0 50% 40% 30% 20% 10% 0% 43% 43% 36% 32% 19% 15% 9% 5% 43% 43% 36% 32% 19% 15% 9% 5% 2012 2013 2014 2015 2016E 2017E 2018E 2019E 2020E 6.3 6.3 6.26.2 6.0 5.9 5.8 5.7 5.6 5.6 2011 2012 2013 2014 2015 2016E 2017E 2018E2011 CU M U L AT I V E CA SH GE NE R AT I O N 2011 2016 2017 2018 2019 2020 $x $x C U M U L A T I V E C A S H G E N E R A T I O N V A L U E S C A L E HIGHEST 2016 2017 2018 2019 2020 $6.0B $4.2B $2.5B C U M U L A T I V E C A S H G E N E R A T I O N 20161 2017F 2018F 2019F 2020F $6.2B $4.6B H I G H E S T V A L U E H I G H E S T V A L U E $1.8 $0.9 1 2016: $0.9 2017F: $1.8 2018F: Orange: $2.7; Silver: $1.6 2019F: Orange: $3.6; Silver: $1.6 2020F: Orange: $4.6; Silver: $1.6 $1.6 $4.2B I M P O R T % I M P O R T V O L U M E ( K T ) 200 160 120 80 40 0 50% 40% 30% 20% 10% 0% 43% 43% 36% 32% 19% 15% 9% 5% 2012 2013 2014 2015 2016E 2017E 2018E2011 120 80 40 0 43% 43% 36% 32% 19% 15% 9% 5% 2012 2013 2014 2015 2016E 2017E 2018E2011 ...have lowered industry tow utilization rates GLOBAL CIGARETTE DEMAND1 T R I L L I O N S E 2 CHINA TOW IMPORTS Demand for cigarettes in China hit an inflection point in 2015 China’s shift to self-sufficiency resulted in sharp decline in tow imports

10A C E T A T E T O W J V – J U N E 2 0 1 71. Subject to regulatory approval 2. Combined 2017 pro forma estimates Addresses concerns about tow and positions the JV for growth Timely transaction creates leading tow supplier REVENUE2 EBITDA MARGIN2 OWNERSHIP $1.3 BILLION >40% 70% CELANESE Celanese and Blackstone combine1 resources to deliver strategic benefits to all stakeholders > Enhanced innovation driven by combined technology to support evolving consumer trends > Improved reliability from global production footprint > Enhanced technical expertise to support customers > Improved efficiency from combined supply chain > Attractive growth opportunities > Cash unlocked from monetization > Enhanced earnings potential CONSUMERS CUSTOMERS EMPLOYEES SHAREHOLDERS

11A C E T A T E T O W J V – J U N E 2 0 1 7 Amsterdam, Netherlands (New Company HQ) Freiburg, Germany Lanaken, Belgium Celanese-CNTC JV Zhuhai, China (30%) Narrows, VA Santo Andre, Brazil Ocotlan, Mexico Celanese-CNTC JV Kunming, China (30%) Celanese-CNTC JV Nantong, China (31%) Serpukhov, Russia Roussillon, France Kingsport, TN 1. Combined 2016 pro forma revenue …enhances efficiency of the supply chain and reliability for customers Combined assets expand global footprint... CELANESE BLACKSTONE Americas ~16% Europe ~49% Asia ~31% NEW COMPANY PRO FORMA REVENUE MIX1 ROW ~4%

12A C E T A T E T O W J V – J U N E 2 0 1 7 Significant value creation for Celanese TOW JOINT VENTURE Immediately EPS neutral Full run-rate synergies will more than offset the cost of JV debt Expect $0.50 - $0.75 of adjusted EPS accretion in year 3 after close 1. Debt after paying down $0.6 billion of debt from Blackstone 2. Pro forma 2017 forecasted EBITDA including pro forma run-rate synergy estimates Cost Synergies > Combination of technology expertise > Optimization of supply chain networks > Procurement economies of scale > Tax synergies CELANESE Optimal Capital Structure > JV to take on $2.2 billion debt1 supported by strong cash flow generation > JV distributes $1.6 billion to Celanese as initial dividend > Debt largely non-recourse to parents > JV debt/EBITDA of ~3.5x2 $1.6 billion initial dividend > Proceeds to be deployed in organic growth, acquisitions, share repurchases, and debt reduction > Celanese committed to maintaining investment grade rating, $0.8 billion to be used to de-lever

13A C E T A T E T O W J V – J U N E 2 0 1 7 Tow transaction advances significant growth options for Celanese Multi-faceted successes > $1.6 billion initial monetization of Cellulose Derivatives > Opportunity to create value uplift through reallocation of capital to higher-growth businesses > Enhanced cost competitiveness > Improved value proposition > Enhanced long-term strategic options > End of tow earnings decline DE-RISK MONETIZE REALLOCATE

14A C E T A T E T O W J V – J U N E 2 0 1 7 ...supported by robust cash flow generation from acetyls and tow Clear set of growth opportunities at Celanese... Robust Cash Generation Acetate Tow JV > Tow JV will enable earnings enhancement > Initial monetization to unlock cash Acetyl Chain > Outsized share of industry growth > Engagement in activities that improve global landscape Explosive Growth AEM > Turbocharge the existing customer project pipeline engagement model > Bolt-on M&A > Larger transactions offer step change options DI SC IPL INE D CA PITAL EARNINGS AE M AEMD EP LO YME NT GROW TH A c e t y l C h a i n & To w J V CASH F LOW E X PANDING VALUE UPLIFT CYCLE

15A C E T A T E T O W J V – J U N E 2 0 1 71. Celanese estimates of industry utilization at 1Q of each year Differentiated performance overcomes weak industry dynamics Acetyl Chain model delivers strong results 12% 10% 10% 16% 14% 13% 64% 61% 63% 70% 65%64% Q1 2012 Q1 2013 Q1 2014 Q1 2015 Q1 2016 Q1 2017 8-10% OLD RANGE 12-16% NEW RANGE ADJUSTED EBIT MARGIN ACETIC ACID INDUSTRY UTILIZATION1 LTM ADJ. EBIT MARGIN PRODUCTIVITY UNPARALLELED CHOICES EXPANDED FLEXIBILITY EXCEPTIONAL EXECUTION COMPETITIVE ADVANTAGES DIFFERENTIAL ACTIONS DIFFERENTIAL MARGIN PERFORMANCE #1 OR #2 IN OUR MARKETS LOW-COST OPERATIONS ADVANTAGED TECHNOLOGY HIGHLY INTEGRATED VALUE CHAIN

16A C E T A T E T O W J V – J U N E 2 0 1 7 Acetyl Chain positioned for growth in excess of GDP Multiple growth layers in Acetyl Chain > Leadership positions and advantaged cost footprint allow the Acetyl Chain to capture disproportionate share of industry growth > Dynamic optimization of commercial model delivers margin capture > Environmental regulations in China creating pressure on coal gasification > Access more molecules through co-supply options and various partnerships > Explore smart M&A opportunities along the chain > Drive innovation in downstream derivatives > Enhance productivity and conversion technology OUTSIZED SHARE OF INDUSTRY GROWTH CHAIN EXTENSION INNOVATION

17A C E T A T E T O W J V – J U N E 2 0 1 71. Engineered materials: AEM excluding affiliates ...which has driven significant earnings growth with upgraded margins AEM is a project-based business... GLOBAL ASSETS & RESOURCES MARKET PLACE PRESENCE DIFFERENTIATOR CAPABILITIES BROADEST MATERIALS PORTFOLIO C US TOMER M ATERIAL PART PIPELINE AGGREGATION & EXECUTION MACHINE MILLION + + = SOLID EARNINGS GROWTH CUSTOMER NEEDS ~$175 Customer Engagement to Map Project Options Translation of Wins Real-time Screening Process Programming of Resources Prioritized Solution Development Identification of Customer Trends COMPLETE PACKAGE BEST PIPELINE MANAGEMENT S YSTEM EM1 AD JUSTED EBIT EM1 AD JUSTED EBIT MARGIN ORGANIC VOLUME GROWTH 113% INCREASE 2014-2016 1,320 BASIS POINTS EXPANSION 2014-2016 ~10% ONGOING ADVANCED ENGINEERED MATERIALS

18A C E T A T E T O W J V – J U N E 2 0 1 71. Launches refers to projects commercialized (received initial Purchase Order for) in the year through the AEM pipeline …delivering high single-digit organic volume growth each year AEM has a long runway for profitable growth… NEXT PROJECT SYSTEM STEP-UPINORGANIC PLATFORM EXPANSION (SO.F.TER., NILIT PLASTICS) PROGRAMS REALIGNED TO REVEALED MARKET PULLORGANIC PLATFORM EXPANSION ORGANIC PLATFORM EXTENSIONS > Additional M&A > Evolve project management system to improve win rate > Accelerate growth in medical applications > Drive increased value through JVs > Leverage portfolio to accelerate translation > Supercharged customer project options engagement model 2015 1 ,000 LAUNCHES 1 DIFFERENTIATED MODEL IMPLEMENTATION APRIL 2015 2016 1 ,385 LAUNCHES 2017F 1 ,900+ LAUNCHES MANY MORE STEPS 6 5 4 3 2 1 A PERPETUAL SET OF IMPROVEMENT OPPORTUNITIES SIGNIFICANT ENTERPRISE VALUE CREATION THROUGH A DIFFERENTIATED MODEL 25% IMPROVEMENT IN WIN RATE 2015–2017

19A C E T A T E T O W J V – J U N E 2 0 1 7 AEM poised for step change in value delivery > Find the most projects > Screen projects for winners > Remove complexity from the customers > Continuously improve win rates > One of the broadest polymer portfolios in the industry > Deep customer relations > Abundance of solution options to meet customer challenges > Expand to new solution capabilities and polymer platforms > Price for package value > Immediately accretive > Successful integration > Recent success with SO.F.TER. and Nilit Plastics ORGANIC GROWTH INORGANIC GROWTH INORGANIC GROWTH PROVEN MODEL + FOCUSED CORE COMPETENCIES + UNLOCKED CAPITAL Numerous high-return opportunities available in growth businesses INDUSTRY-LEADING PACKAGE PERFECTING THE MODEL EXTENSION THROUGH ACQUISITION STEP CHANGE IN GROWTH OPTIONS

20A C E T A T E T O W J V – J U N E 2 0 1 7 C U M U L A T I V E C A S H G E N E R A T I O N 20161 2017F 2018F 2019F 2020F $6.2B $4.6B H I G H E S T V A L U E $2.5B 1. 2016 free cash flow excludes voluntary payment of $300 million for pension deleveraging 2. Including estimated ongoing cash flow available to CE from new acetate tow JV 3. Includes voluntary payment of $300 million in 2016 for pension deleveraging. Excludes any deleveraging at the new acetate tow JV $6.2B of cash generation to be deployed to enhance growth Value uplift via thoughtful capital allocation HIGH ROIC PROJECTS RETURNING CASH TO SHAREHOLDERS ANTICIPATED $1.6B INITIAL DIVIDEND FROM NEW ACETATE TOW JV COMMITMENT TO MAINTAIN INVESTMENT GRADECELANESE CASH GENERATION FROM OPERATIONS2 SOURCES OF CASH 2 0 1 6 - 2 0 2 0 I N B I L L I O N S USES OF CASH 2 0 1 6 - 2 0 2 0 I N B I L L I O N S ~$1.3 ~$2.0 ~$1.8 ~$1.13 DELEVERAGING ORGANIC GROWTH AND M&A DIVIDENDS SHARE REPURCHASES NO EXCESS CASH ON BALANCE SHEET

EX-99.4

Exhibit 99.4

Non-US GAAP Financial Measures and Supplemental Information

June 18, 2017

In this document, the terms the "Company," "we" and "our" refer to Celanese Corporation and its subsidiaries on a consolidated basis.

Purpose

The purpose of this document is to provide information of interest to investors, analysts and other parties including supplemental financial information and reconciliations and other information concerning our use of non-US GAAP financial measures. This document is updated quarterly.

Presentation

This document presents the Company's business segments in two subtotals, reflecting our two cores, the Acetyl Chain and Materials Solutions, based on similarities among customers, business models and technical processes. As described in the Company's annual report on Form 10-K and quarterly reports on Form 10-Q, the Acetyl Chain includes the Company's Acetyl Intermediates segment and the Industrial Specialties segment. Materials Solutions includes the Company's Advanced Engineered Materials segment and the Consumer Specialties segment.

Use of Non-US GAAP Financial Measures

From time to time, management may publicly disclose certain numerical "non-GAAP financial measures" in the course of our earnings releases, financial presentations, earnings conference calls, investor and analyst meetings and otherwise. For these purposes, the Securities and Exchange Commission ("SEC") defines a "non-GAAP financial measure" as a numerical measure of historical or future financial performance, financial position or cash flows that excludes amounts, or is subject to adjustments that effectively exclude amounts, included in the most directly comparable measure calculated and presented in accordance with US GAAP, and vice versa for measures that include amounts, or are subject to adjustments that effectively include amounts, that are excluded from the most directly comparable US GAAP measure so calculated and presented. For these purposes, "GAAP" refers to generally accepted accounting principles in the United States.

Non-GAAP financial measures disclosed by management are provided as additional information to investors, analysts and other parties because the Company believes them to be important supplemental measures for assessing our financial and operating results and as a means to evaluate our financial condition and period-to-period comparisons. These non-GAAP financial measures should be viewed as supplemental to, and should not be considered in isolation or as alternatives to, net earnings (loss), operating profit (loss), operating margin, cash flow from operating activities (together with cash flow from investing and financing activities), earnings per share or any other US GAAP financial measure. These non-GAAP financial measures should be considered within the context of our complete audited and unaudited financial results for the given period, which are available on the Investor Relations/Financial Information/SEC Filings page of our website, www.celanese.com. The definition and method of calculation of the non-GAAP financial measures used herein may be different from other companies' methods for calculating measures with the same or similar titles. Investors, analysts and other parties should understand how another company calculates such non-GAAP financial measures before comparing the other company's non-GAAP financial measures to any of our own. These non-GAAP financial measures may not be indicative of the historical operating results of the Company nor are they intended to be predictive or projections of future results.

Pursuant to the requirements of SEC Regulation G, whenever we refer to a non-GAAP financial measure, we will also present in this document, in the presentation itself or on a Form 8-K in connection with the presentation on the Investor Relations/Financial Information/Non-GAAP Financial Measures page of our website, www.celanese.com, to the extent practicable, the most directly comparable financial measure calculated and presented in accordance with GAAP, along with a reconciliation of the differences between the non-GAAP financial measure we reference and such comparable GAAP financial measure.

This document includes definitions and reconciliations of non-GAAP financial measures used from time to time by the Company.

Specific Measures Used

This document provides information about the following non-GAAP measures: adjusted EBIT, adjusted EBIT margin, operating EBITDA, operating EBITDA margin, operating profit (loss) attributable to Celanese Corporation, adjusted earnings per share, net debt, free cash flow and return on invested capital (adjusted). The most directly comparable financial measure presented in accordance with US GAAP in our consolidated financial statements for adjusted EBIT and operating EBITDA is net earnings (loss) attributable to Celanese Corporation; for adjusted EBIT margin and operating EBITDA margin is operating margin; for operating profit (loss) attributable to

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Celanese Corporation is operating profit (loss); for adjusted earnings per share is earnings (loss) from continuing operations attributable to Celanese Corporation per common share-diluted; for net debt is total debt; for free cash flow is net cash provided by (used in) operations; and for return on invested capital (adjusted) is net earnings (loss) attributable to Celanese Corporation divided by the sum of the average of beginning and end of the year short- and long-term debt and Celanese Corporation stockholders' equity.

Definitions

• Adjusted EBIT is a performance measure used by the Company and is defined by the Company as net earnings (loss) attributable to Celanese Corporation, plus (earnings) loss from discontinued operations, less interest income, plus interest expense, plus refinancing expense and taxes, and further adjusted for Certain Items (refer to Table 8). We believe that adjusted EBIT provides transparent and useful information to management, investors, analysts and other parties in evaluating and assessing our primary operating results from period-to-period after removing the impact of unusual, non-operational or restructuring-related activities that affect comparability. Our management recognizes that adjusted EBIT has inherent limitations because of the excluded items. Adjusted EBIT is one of the measures management uses for planning and budgeting, monitoring and evaluating financial and operating results and as a performance metric in the Company's incentive compensation plan. We may provide guidance on adjusted EBIT but are unable to reconcile forecasted adjusted EBIT to a US GAAP financial measure without unreasonable efforts because a forecast of Certain Items, such as mark-to-market pension gains and losses, which may be significant, is not practical. Adjusted EBIT margin is defined by the Company as adjusted EBIT divided by net sales. Adjusted EBIT margin has the same uses and limitations as Adjusted EBIT.

• Adjusted EBIT by core (i.e. Acetyl Chain and/or Materials Solutions) may also be referred to by management as core income. Adjusted EBIT margin by core may also be referred to by management as core income margin. Adjusted EBIT by business segment may also be referred to by management as segment income. Adjusted EBIT margin by business segment may also be referred to by management as segment income margin.

• Operating EBITDA is a performance measure used by the Company and is defined by the Company as net earnings (loss) attributable to Celanese Corporation, plus (earnings) loss from discontinued operations, less interest income, plus interest expense, plus refinancing expense, taxes and depreciation and amortization, and further adjusted for Certain Items, which Certain Items include accelerated depreciation and amortization expense. Operating EBITDA is equal to adjusted EBIT plus depreciation and amortization. We believe that Operating EBITDA provides transparent and useful information to investors, analysts and other parties in evaluating our operating performance relative to our peer companies. Operating EBITDA margin is defined by the Company as Operating EBITDA divided by net sales. Operating EBITDA margin has the same uses and limitations as Operating EBITDA.

• Operating profit (loss) attributable to Celanese Corporation is defined by the Company as operating profit (loss), less earnings (loss) attributable to noncontrolling interests ("NCI"). We believe that operating profit (loss) attributable to Celanese Corporation provides transparent and useful information to management, investors, analysts and other parties in evaluating our core operational performance. Operating margin attributable to Celanese Corporation is defined by the Company as operating profit (loss) attributable to Celanese Corporation divided by net sales. Operating margin attributable to Celanese Corporation has the same uses and limitations as Operating profit (loss) attributable to Celanese Corporation.

• Adjusted earnings per share is a performance measure used by the Company and is defined by the Company as earnings (loss) from continuing operations attributable to Celanese Corporation, adjusted for income tax (provision) benefit, Certain Items, and refinancing and related expenses, divided by the number of basic common shares and dilutive restricted stock units and stock options calculated using the treasury method. We believe that adjusted earnings per share provides transparent and useful information to management, investors, analysts and other parties in evaluating and assessing our primary operating results from period-to-period after removing the impact of the above stated items that affect comparability and as a performance metric in the Company's incentive compensation plan. We may provide guidance on adjusted earnings per share but are unable to reconcile forecasted adjusted earnings per share to a GAAP financial measure without unreasonable efforts because a forecast of Certain Items, such as mark-to-market pension gains and losses, which may be significant, is not practical.

Note: The income tax expense (benefit) on Certain Items ("Non-GAAP adjustments") is determined using the applicable rates in the taxing jurisdictions in which the Non-GAAP adjustments occurred and includes both current and deferred income tax expense (benefit). The income tax rate used for adjusted earnings per share approximates the midpoint in a range of forecasted tax rates for the year. This range may include certain partial or full-year forecasted tax opportunities and related costs, where applicable, and specifically excludes changes in uncertain tax positions, discrete recognition of GAAP items on a quarterly basis, other pre-tax items adjusted out of our GAAP earnings for adjusted earnings per share purposes and changes in management's assessments regarding the ability to realize deferred tax assets for GAAP. In determining the adjusted earnings per share tax rate, we reflect the impact of foreign tax credits when utilized, or expected to be utilized, absent discrete events impacting the timing of foreign tax credit utilization. We analyze this rate quarterly and adjust it if there is a material change in the range of forecasted tax rates; an updated forecast would not necessarily result in a change to our tax rate used for adjusted earnings per share. The adjusted tax rate is an estimate and may differ from the actual tax rate used for GAAP reporting in any given reporting period. Table 3a summarizes the reconciliation of our estimated GAAP effective tax rate to the adjusted tax rate. The estimated GAAP rate excludes discrete recognition of GAAP items due to our inability to forecast such items. As part of the year-end reconciliation, we will update the reconciliation of the GAAP effective tax rate to the adjusted tax rate for actual results.

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• Free cash flow is a liquidity measure used by the Company and is defined by the Company as net cash provided by (used in) operations, less capital expenditures on property, plant and equipment, and adjusted for capital contributions from or distributions to Mitsui & Co., Ltd. ("Mitsui") related to our methanol joint venture, Fairway Methanol LLC ("Fairway"). We believe that free cash flow provides useful information to management, investors, analysts and other parties in evaluating the Company's liquidity and credit quality assessment because it provides an indication of the long-term cash generating ability of our business. Although we use free cash flow as a measure to assess the liquidity generated by our business, the use of free cash flow has important limitations, including that free cash flow does not reflect the cash requirements necessary to service our indebtedness, lease obligations, unconditional purchase obligations or pension and postretirement funding obligations.

• Net debt is defined by the Company as total debt less cash and cash equivalents. We believe that net debt provides useful information to management, investors, analysts and other parties in evaluating changes to the Company's capital structure and credit quality assessment.

• Return on invested capital (adjusted) is defined by the Company as adjusted EBIT, tax effected using the adjusted tax rate, divided by the sum of the average of beginning and end of the year short- and long-term debt and Celanese Corporation stockholders' equity. We believe that return on invested capital (adjusted) provides useful information to management, investors, analysts and other parties in order to assess our income generation from the point of view of our stockholders and creditors who provide us with capital in the form of equity and debt and whether capital invested in the Company yields competitive returns. In addition, achievement of certain predetermined targets relating to return on invested capital (adjusted) is one of the factors we consider in determining the amount of performance-based compensation received by our management.

Supplemental Information

Supplemental Information we believe to be of interest to investors, analysts and other parties includes the following:

• Net sales for Materials Solutions, the Acetyl Chain and each of our business segments and the percentage increase or decrease in net sales attributable to price, volume, currency and other factors for Materials Solutions, the Acetyl Chain and each of our business segments.

• Cash dividends received from our equity and cost investments.

• For those consolidated ventures in which the Company owns or is exposed to less than 100% of the economics, the outside stockholders' interests are shown as NCI. Beginning in 2014, this includes Fairway for which the Company's ownership percentage is 50%. Amounts referred to as "attributable to Celanese Corporation" are net of any applicable NCI.

Results Unaudited

The results in this document, together with the adjustments made to present the results on a comparable basis, have not been audited and are based on internal financial data furnished to management. Quarterly results should not be taken as an indication of the results of operations to be reported for any subsequent period or for the full fiscal year.

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Table 1

Adjusted EBIT and Operating EBITDA - Reconciliation of Non-GAAP Measures - Unaudited

	Q1 '17	2016		Q4 '16		Q3 '16	Q2 '16	Q1 '16
	(In $ millions)
Net earnings (loss) attributable to Celanese Corporation	183	900		160		262	221	257
(Earnings) loss from discontinued operations	—	2		—		3	—	(1	)
Interest income	—	(2	)	(1	)	—	—	(1	)
Interest expense	29	120		29		28	30	33
Refinancing expense	—	6		—		4	—	2
Income tax provision (benefit)	56	122		(5	)	15	52	60
Certain Items attributable to Celanese Corporation (Table 8)	65	130		106		7	9	8
Adjusted EBIT	333	1,278		289		319	312	358
Depreciation and amortization expense(1)	71	288		71		71	73	73
Operating EBITDA	404	1,566		360		390	385	431

	Q1 '17	2016	Q4 '16	Q3 '16	Q2 '16	Q1 '16
	(In $ millions)
Advanced Engineered Materials	—	—	—	—	—	—
Consumer Specialties	—	1	—	1	—	—
Industrial Specialties	—	—	—	—	—	—
Acetyl Intermediates	—	—	—	—	—	—
Other Activities(2)	—	1	1	—	—	—
Accelerated depreciation and amortization expense	—	2	1	1	—	—
Depreciation and amortization expense(1)	71	288	71	71	73	73
Total depreciation and amortization expense	71	290	72	72	73	73

______________________________

⁽¹⁾  Excludes accelerated depreciation and amortization expense as detailed in the table above, which amounts are included in Certain Items above.

⁽²⁾  Other Activities includes corporate Selling, general and administrative ("SG&A") expenses, the results of captive insurance companies and certain components of net periodic benefit cost (interest cost, expected return on plan assets and net actuarial gains and losses).

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Table 2 - Supplemental Segment Data and Reconciliation of Segment Adjusted EBIT and Operating EBITDA - Non-GAAP Measures - Unaudited

	Q1 '17				2016				Q4 '16				Q3 '16				Q2 '16				Q1 '16
	(In $ millions, except percentages)
Operating Profit (Loss) / Operating Margin
Materials Solutions	166		23.5	%	652		27.5	%	163		27.7	%	161		27.3	%	162		27.0	%	166		27.9	%
Acetyl Chain(1)	52		6.5	%	446		14.2	%	86		11.5	%	108		14.2	%	107		13.7	%	145		17.3	%
Other Activities(2)	(26	)			(205	)			(132	)			(23	)			(26	)			(24	)
Total	192		13.1	%	893		16.6	%	117		8.9	%	246		18.6	%	243		18.0	%	287		20.4	%
Less: Net Earnings (Loss) Attributable to NCI(1)	1				6				1				1				2				2
Operating Profit (Loss) Attributable to Celanese Corporation	191		13.0	%	887		16.5	%	116		8.8	%	245		18.5	%	241		17.8	%	285		20.3	%
Operating Profit (Loss) / Operating Margin Attributable to Celanese Corporation
Advanced Engineered Materials	98		20.1	%	350		24.2	%	87		23.9	%	93		25.5	%	82		22.5	%	88		25.1	%
Consumer Specialties	68		31.2	%	302		32.5	%	76		33.8	%	68		30.2	%	80		34.0	%	78		32.0	%
Total Materials Solutions	166		23.5	%	652		27.5	%	163		27.7	%	161		27.3	%	162		27.0	%	166		27.9	%
Industrial Specialties	25		10.2	%	105		10.7	%	20		9.1	%	25		10.2	%	29		11.1	%	31		12.3	%
Acetyl Intermediates(1)	26		4.2	%	334		13.7	%	65		10.9	%	82		13.9	%	75		12.7	%	112		16.9	%
Eliminations	—				1				—				—				1				—
Total Acetyl Chain	51		6.4	%	440		14.0	%	85		11.3	%	107		14.0	%	105		13.5	%	143		17.0	%
Other Activities(2)	(26	)			(205	)			(132	)			(23	)			(26	)			(24	)
Total	191		13.0	%	887		16.5	%	116		8.8	%	245		18.5	%	241		17.8	%	285		20.3	%
Equity Earnings, Cost-Dividend Income, Other Income (Expense) Attributable to Celanese Corporation
Advanced Engineered Materials	42				122				31				33				27				31
Consumer Specialties	30				110				27				27				28				28
Total Materials Solutions	72				232				58				60				55				59
Industrial Specialties	—				—				—				—				—				—
Acetyl Intermediates	1				7				2				1				2				2
Total Acetyl Chain	1				7				2				1				2				2
Other Activities(2)	4				22				7				6				5				4
Total	77				261				67				67				62				65
Certain Items Attributable to Celanese Corporation(Table 8)
Advanced Engineered Materials	3				7				3				1				2				1
Consumer Specialties	2				6				3				3				—				—
Total Materials Solutions	5				13				6				4				2				1
Industrial Specialties	—				1				(2	)			—				1				2
Acetyl Intermediates	56				6				1				1				3				1
Total Acetyl Chain	56				7				(1	)			1				4				3
Other Activities(2)	4				110				101				2				3				4
Total	65				130				106				7				9				8
Adjusted EBIT / Adjusted EBIT Margin
Advanced Engineered Materials	143		29.4	%	479		33.2	%	121		33.2	%	127		34.8	%	111		30.4	%	120		34.3	%
Consumer Specialties	100		45.9	%	418		45.0	%	106		47.1	%	98		43.6	%	108		46.0	%	106		43.4	%
Total Materials Solutions	243		34.5	%	897		37.8	%	227		38.5	%	225		38.1	%	219		36.5	%	226		38.0	%
Industrial Specialties	25		10.2	%	106		10.8	%	18		8.2	%	25		10.2	%	30		11.5	%	33		13.0	%
Acetyl Intermediates	83		13.4	%	347		14.2	%	68		11.4	%	84		14.3	%	80		13.5	%	115		17.3	%
Eliminations	—				1				—				—				1				—
Total Acetyl Chain	108		13.6	%	454		14.5	%	86		11.5	%	109		14.3	%	111		14.2	%	148		17.6	%
Other Activities(2)	(18	)			(73	)			(24	)			(15	)			(18	)			(16	)
Total	333		22.6	%	1,278		23.7	%	289		22.0	%	319		24.1	%	312		23.1	%	358		25.5	%

___________________________

⁽¹⁾  Net earnings (loss) attributable to NCI is included within the Acetyl Intermediates segment.

⁽²⁾  Other Activities includes corporate SG&A expenses, the results of captive insurance companies and certain components of net periodic benefit cost (interest cost, expected return on plan assets and net actuarial gains and losses).

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Table 2 - Supplemental Segment Data and Reconciliation of Segment Adjusted EBIT and Operating EBITDA - Non-GAAP Measures - Unaudited (cont.)

	Q1 '17				2016				Q4 '16				Q3 '16				Q2 '16				Q1 '16
	(In $ millions, except percentages)
Depreciation and Amortization Expense(1)
Advanced Engineered Materials	24				92				21				22				25				24
Consumer Specialties	11				44				11				11				11				11
Total Materials Solutions	35				136				32				33				36				35
Industrial Specialties	8				34				9				9				8				8
Acetyl Intermediates	26				107				26				27				27				27
Total Acetyl Chain	34				141				35				36				35				35
Other Activities(2)	2				11				4				2				2				3
Total	71				288				71				71				73				73
Operating EBITDA / Operating EBITDA Margin
Advanced Engineered Materials	167		34.3	%	571		39.5	%	142		39.0	%	149		40.8	%	136		37.3	%	144		41.1	%
Consumer Specialties	111		50.9	%	462		49.7	%	117		52.0	%	109		48.4	%	119		50.6	%	117		48.0	%
Total Materials Solutions	278		39.4	%	1,033		43.5	%	259		44.0	%	258		43.7	%	255		42.5	%	261		43.9	%
Industrial Specialties	33		13.5	%	140		14.3	%	27		12.3	%	34		13.9	%	38		14.5	%	41		16.2	%
Acetyl Intermediates	109		17.6	%	454		18.6	%	94		15.7	%	111		18.8	%	107		18.1	%	142		21.4	%
Eliminations	—				1				—				—				1				—
Total Acetyl Chain	142		17.9	%	595		19.0	%	121		16.2	%	145		19.0	%	146		18.7	%	183		21.8	%
Other Activities(2)	(16	)			(62	)			(20	)			(13	)			(16	)			(13	)
Total	404		27.5	%	1,566		29.1	%	360		27.5	%	390		29.5	%	385		28.5	%	431		30.7	%

___________________________

⁽¹⁾  Excludes accelerated depreciation and amortization expense, which amounts are included in Certain Items above. See Table 1 for details.

⁽²⁾  Other Activities includes corporate SG&A expenses, the results of captive insurance companies and certain components of net periodic benefit cost (interest cost, expected return on plan assets and net actuarial gains and losses).

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Table 3

Adjusted Earnings (Loss) per Share - Reconciliation of a Non-GAAP Measure - Unaudited

	Q1 '17			2016			Q4 '16			Q3 '16			Q2 '16			Q1 '16
			per share			per share			per share			per share			per share			per share
	(In $ millions, except per share data)
Earnings (loss) from continuing operations attributable to Celanese Corporation	183		1.30	902		6.19	160		1.12	265		1.83	221		1.50	256		1.73
Income tax provision (benefit)	56			122			(5	)		15			52			60
Earnings (loss) from continuing operations before tax	239			1,024			155			280			273			316
Certain Items attributable to Celanese Corporation(Table 8)	65			130			106			7			9			8
Refinancing and related expenses	—			6			—			4			—			2
Adjusted earnings (loss) from continuing operations before tax	304			1,160			261			291			282			326
Income tax (provision) benefit on adjusted earnings(1)	(49	)		(197	)		(44	)		(49	)		(48	)		(55	)
Adjusted earnings (loss) from continuing operations(2)	255		1.81	963		6.61	217		1.52	242		1.67	234		1.59	271		1.83
	Diluted shares (in millions)(3)
Weighted average shares outstanding	140.6			144.9			141.9			144.0			146.5			147.4
Incremental shares attributable to equity awards	0.4			0.8			0.7			0.6			0.6			0.7
Total diluted shares	141.0			145.7			142.6			144.6			147.1			148.1

______________________________

⁽¹⁾  Calculated using adjusted effective tax rates (Table 3a) as follows:

	Q1 '17	2016	Q4 '16	Q3 '16	Q2 '16	Q1 '16
	(In percentages)
Adjusted effective tax rate	16	17	17	17	17	17

⁽²⁾  Excludes the immediate recognition of actuarial gains and losses and the impact of actual vs. expected plan asset returns.

	Actual Plan Asset Returns	Expected Plan Asset Returns
	(In percentages)
2016	6.9	7.3

⁽³⁾  Potentially dilutive shares are included in the adjusted earnings per share calculation when adjusted earnings are positive.

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Table 3a

Adjusted Tax Rate - Reconciliation of a Non-GAAP Measure - Unaudited

	Estimated		Actual
	2017		2016
	(In percentages)
US GAAP effective tax rate	19		12
Discrete quarterly recognition of GAAP items(1)	(1	)	1
Tax impact of other charges and adjustments(2)	(1	)	3
Utilization of foreign tax credits	—		—
Changes in valuation allowances, excluding impact of other charges and adjustments(3)	(1	)	2
Other(4)	—		(1	)
Adjusted tax rate	16		17

______________________________

Note: As part of the year-end reconciliation, we will update the reconciliation of the GAAP effective tax rate for actual results.

⁽¹⁾  Such as changes in tax laws, deferred taxes on outside basis differences, changes in uncertain tax positions and prior year audit adjustments.

⁽²⁾  Reflects the tax impact on pre-tax adjustments presented in Certain Items (Table 8), which are excluded from pre-tax income for adjusted earnings per share purposes.

⁽³⁾  Reflects changes in valuation allowances related to changes in judgment regarding the realizability of deferred tax assets or current year operations, excluding other charges and adjustments.

⁽⁴⁾  Tax impacts related to full-year forecasted tax opportunities and related costs.

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Table 4

Net Sales by Segment - Unaudited

	Q1 '17		2016		Q4 '16		Q3 '16		Q2 '16		Q1 '16
	(In $ millions)
Advanced Engineered Materials	487		1,444		364		365		365		350
Consumer Specialties	218		929		225		225		235		244
Total Materials Solutions	705		2,373		589		590		600		594
Industrial Specialties	245		979		219		245		262		253
Acetyl Intermediates	619		2,441		597		589		592		663
Eliminations(1)	(70	)	(288	)	(67	)	(71	)	(74	)	(76	)
Total Acetyl Chain	794		3,132		749		763		780		840
Other Activities(2)	—		—		—		—		—		—
Intersegment eliminations(1)	(28	)	(116	)	(27	)	(30	)	(29	)	(30	)
Net sales	1,471		5,389		1,311		1,323		1,351		1,404

___________________________

⁽¹⁾  Includes intersegment sales as follows:

	Q1 '17		2016		Q4 '16		Q3 '16		Q2 '16		Q1 '16
	(In $ millions)
Industrial Specialties	(1	)	(3	)	(1	)	(1	)	(1	)	—
Acetyl Intermediates	(97	)	(401	)	(93	)	(100	)	(102	)	(106	)
Intersegment eliminations	(98	)	(404	)	(94	)	(101	)	(103	)	(106	)

⁽²⁾  Other Activities includes corporate SG&A expenses, the results of captive insurance companies and certain components of net periodic benefit cost (interest cost, expected return on plan assets and net actuarial gains and losses).

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Table 4a

Factors Affecting Segment Net Sales Sequentially - Unaudited

Three Months Ended March 31, 2017 Compared to Three Months Ended December 31, 2016

	Volume		Price		Currency		Other	Total
	(In percentages)
Advanced Engineered Materials	35		—		(1	)	—	34		(1)
Consumer Specialties	3		(6	)	—		—	(3	)
Total Materials Solutions	22		(2	)	—		—	20
Industrial Specialties	11		1		—		—	12
Acetyl Intermediates	(2	)	6		—		—	4
Total Acetyl Chain	2		5		(1	)	—	6
Total Company	11		2		(1	)	—	12

___________________________

⁽¹⁾  2017 includes the effect of the SO.F.TER. S.p.A. acquisition.

Three Months Ended December 31, 2016 Compared to Three Months Ended September 30, 2016

	Volume		Price		Currency		Other	Total
	(In percentages)
Advanced Engineered Materials	1		—		(1	)	—	—
Consumer Specialties	2		(2	)	—		—	—
Total Materials Solutions	2		(1	)	(1	)	—	—
Industrial Specialties	(7	)	(2	)	(2	)	—	(11	)
Acetyl Intermediates	—		2		(1	)	—	1
Total Acetyl Chain	(2	)	1		(2	)	1	(2	)
Total Company	(1	)	1		(1	)	—	(1	)

Three Months Ended September 30, 2016 Compared to Three Months Ended June 30, 2016

	Volume		Price	Currency		Other	Total
	(In percentages)
Advanced Engineered Materials	(1	)	1	—		—	—
Consumer Specialties	(4	)	—	—		—	(4	)
Total Materials Solutions	(2	)	—	—		—	(2	)
Industrial Specialties	(6	)	—	(1	)	—	(7	)
Acetyl Intermediates	—		—	—		—	—
Total Acetyl Chain	(2	)	—	(1	)	1	(2	)
Total Company	(2	)	—	—		—	(2	)

Three Months Ended June 30, 2016 Compared to Three Months Ended March 31, 2016

	Volume		Price		Currency	Other	Total
	(In percentages)
Advanced Engineered Materials	6		(2	)	1	—	5
Consumer Specialties	(3	)	(1	)	—	—	(4	)
Total Materials Solutions	2		(2	)	1	—	1
Industrial Specialties	4		(1	)	1	—	4
Acetyl Intermediates	(11	)	—		—	—	(11	)
Total Acetyl Chain	(7	)	(1	)	1	—	(7	)
Total Company	(4	)	(1	)	1	—	(4	)

10

Table 4a

Factors Affecting Segment Net Sales Sequentially - Unaudited (cont.)

Three Months Ended March 31, 2016 Compared to Three Months Ended December 31, 2015

	Volume	Price		Currency	Other		Total
	(In percentages)
Advanced Engineered Materials	12	—		—	—		12
Consumer Specialties	6	(7	)	—	—		(1	)
Total Materials Solutions	10	(3	)	—	—		7
Industrial Specialties	9	(3	)	—	—		6
Acetyl Intermediates	7	(4	)	—	—		3
Total Acetyl Chain	8	(4	)	—	(1	)	3
Total Company	9	(4	)	—	—		5

11

Table 4b

Factors Affecting Segment Net Sales Year Over Year - Unaudited

Three Months Ended March 31, 2017 Compared to Three Months Ended March 31, 2016

	Volume		Price		Currency		Other	Total
	(In percentages)
Advanced Engineered Materials	44		(3	)	(2	)	—	39
Consumer Specialties	(2	)	(8	)	(1	)	—	(11	)
Total Materials Solutions	25		(5	)	(1	)	—	19
Industrial Specialties	1		(2	)	(2	)	—	(3	)
Acetyl Intermediates	(12	)	7		(2	)	—	(7	)
Total Acetyl Chain	(9	)	5		(2	)	1	(5	)
Total Company	5		1		(2	)	1	5

Three Months Ended December 31, 2016 Compared to Three Months Ended December 31, 2015

	Volume		Price		Currency		Other	Total
	(In percentages)
Advanced Engineered Materials	20		(2	)	(1	)	—	17
Consumer Specialties	2		(11	)	—		—	(9	)
Total Materials Solutions	12		(6	)	—		—	6
Industrial Specialties	(1	)	(6	)	(1	)	—	(8	)
Acetyl Intermediates	(4	)	(2	)	(2	)	1	(7	)
Total Acetyl Chain	(4	)	(3	)	(2	)	1	(8	)
Total Company	2		(4	)	(1	)	1	(2	)

Three Months Ended September 30, 2016 Compared to Three Months Ended September 30, 2015

	Volume		Price		Currency		Other	Total
	(In percentages)
Advanced Engineered Materials	16		(4	)	—		—	12
Consumer Specialties	(2	)	(7	)	—		—	(9	)
Total Materials Solutions	8		(5	)	—		—	3
Industrial Specialties	(1	)	(9	)	(1	)	—	(11	)
Acetyl Intermediates	(3	)	(11	)	—		1	(13	)
Total Acetyl Chain	(3	)	(12	)	—		2	(13	)
Total Company	1		(9	)	—		2	(6	)

Three Months Ended June 30, 2016 Compared to Three Months Ended June 30, 2015

	Volume		Price		Currency	Other	Total
	(In percentages)
Advanced Engineered Materials	8		(4	)	1	—	5
Consumer Specialties	2		(8	)	—	—	(6	)
Total Materials Solutions	5		(5	)	1	—	1
Industrial Specialties	(1	)	(8	)	—	—	(9	)
Acetyl Intermediates	(5	)	(13	)	—	2	(16	)
Total Acetyl Chain	(4	)	(12	)	—	2	(14	)
Total Company	—		(10	)	—	1	(9	)

Three Months Ended March 31, 2016 Compared to Three Months Ended March 31, 2015

	Volume	Price		Currency		Other	Total
	(In percentages)
Advanced Engineered Materials	5	(2	)	(1	)	—	2
Consumer Specialties	17	(9	)	—		—	8
Total Materials Solutions	9	(5	)	—		—	4
Industrial Specialties	—	(9	)	(1	)	—	(10	)
Acetyl Intermediates	6	(13	)	(2	)	2	(7	)
Total Acetyl Chain	5	(13	)	(2	)	1	(9	)
Total Company	7	(10	)	(2	)	1	(4	)

12

Table 4c

Factors Affecting Segment Net Sales Year Over Year - Unaudited

Year Ended December 31, 2016 Compared to Year Ended December 31, 2015

	Volume		Price		Currency		Other	Total
	(In percentages)
Advanced Engineered Materials	11		(2	)	—		—	9
Consumer Specialties	4		(8	)	—		—	(4	)
Total Materials Solutions	8		(5	)	—		—	3
Industrial Specialties	(1	)	(8	)	(1	)	—	(10	)
Acetyl Intermediates	(2	)	(10	)	(1	)	2	(11	)
Total Acetyl Chain	(2	)	(10	)	(1	)	2	(11	)
Total Company	2		(8	)	(1	)	2	(5	)

13

Table 5

Free Cash Flow - Reconciliation of a Non-GAAP Measure - Unaudited

	Q1 '17		2016		Q4 '16		Q3 '16		Q2 '16		Q1 '16
	(In $ millions)
Net cash provided by (used in) investing activities	(64	)	(439	)	(247	)	(54	)	(63	)	(75	)
Net cash provided by (used in) financing activities	(270	)	(759	)	(292	)	265		(259	)	(473	)
Net cash provided by (used in) operating activities	192		893		(47	)	304		349		287
Capital expenditures on property, plant and equipment	(62	)	(246	)	(60	)	(58	)	(58	)	(70	)
Capital (distributions to) contributions from NCI	(4	)	(24	)	(9	)	(9	)	(6	)	—
Free cash flow(1)(2)	126		623		(116	)	237		285		217

______________________________

⁽¹⁾  Free cash flow is a liquidity measure used by the Company and is defined by the Company as net cash provided by (used in) operating activities, less capital expenditures on property, plant and equipment, and adjusted for capital contributions from or distributions to Mitsui & Co., Ltd. ("Mitsui") related to our joint venture, Fairway Methanol LLC ("Fairway").

⁽²⁾  Excludes required debt service and capital lease payments of $27 million and $56 million for the years ending December 31, 2017 and 2016, respectively.

14

Table 6

Cash Dividends Received - Unaudited

	Q1 '17	2016	Q4 '16	Q3 '16	Q2 '16	Q1 '16
	(In $ millions)
Dividends from equity method investments	50	131	15	6	73	37
Dividends from cost method investments	29	108	26	26	29	27
Total	79	239	41	32	102	64

Table 7

Net Debt - Reconciliation of a Non-GAAP Measure - Unaudited

	Q1 '17		2016		Q4 '16		Q3 '16		Q2 '16		Q1 '16
	(In $ millions)
Short-term borrowings and current installments of long-term debt - third party and affiliates	107		118		118		92		119		116
Long-term debt, net of unamortized deferred financing costs	2,851		2,890		2,890		2,923		2,464		2,487
Total debt	2,958		3,008		3,008		3,015		2,583		2,603
Cash and cash equivalents	(501	)	(638	)	(638	)	(1,252	)	(735	)	(716	)
Net debt	2,457		2,370		2,370		1,763		1,848		1,887

15

Table 8

Certain Items - Unaudited

The following Certain Items attributable to Celanese Corporation are included in Net earnings (loss) and are adjustments to non-GAAP measures:

	Q1 '17		2016		Q4 '16		Q3 '16		Q2 '16	Q1 '16	Income Statement Classification
	(In $ millions)
Employee termination benefits(1)	2		11		—		3		3	5	Other charges (gains), net
Plant/office closures	57		4		1		2		—	1	Cost of sales / SG&A / Other charges (gains), net
Business optimization	—		7		3		1		1	2	Cost of sales / SG&A
Asset impairments	—		2		1		—		1	—	Other charges (gains), net
(Gain) loss on disposition of business and assets, net	—		(4	)	(2	)	(2	)	—	—	(Gain) loss on disposition, net
Commercial disputes	—		(2	)	(2	)	—		—	—	Other charges (gains), net
Write-off of other productive assets	—		4		1		1		2	—	Cost of sales / R&D
Employee benefit plan changes	—		1		—		—		1	—	Cost of sales / SG&A / R&D
Actuarial (gain) loss on pension and postretirement plans	—		102		102		—		—	—	Cost of sales / SG&A / R&D
Start-up costs	—		2		—		1		1	—	Cost of sales
Mergers and acquisitions	9		3		2		1		—	—	Cost of sales / SG&A
Other	(3	)	—		—		—		—	—	Equity in net earnings (loss) of affiliates
Certain Items attributable to Celanese Corporation	65		130		106		7		9	8

______________________________

⁽¹⁾  Primarily associated with site shutdown costs.

16

Table 9

Return on Invested Capital (Adjusted) - Presentation of a Non-GAAP Measure - Unaudited

			2016
			(In $ millions, except percentages)
Net earnings (loss) attributable to Celanese Corporation			900
Adjusted EBIT(Table 1)			1,278
Adjusted effective tax rate (Table 3a)			17	%
Adjusted EBIT tax effected			1,061
	2016	2015	Average
	(In $ millions, except percentages)
Short-term borrowings and current installments of long-term debt - third parties and affiliates	118	513	316
Long-term debt, net of unamortized deferred financing costs	2,890	2,468	2,679
Celanese Corporation stockholders' equity	2,588	2,378	2,483
Invested capital			5,478
Return on invested capital (adjusted)			19.4	%
Net earnings (loss) attributable to Celanese Corporation as a percentage of invested capital			16.4	%

17

EX-99.5

Exhibit 99.5

Historical Non-US GAAP Financial Measures and Supplemental Information

June 18, 2017

In this document, the terms the "Company," "we" and "our" refer to Celanese Corporation and its subsidiaries on a consolidated basis.

Purpose

The purpose of this document is to provide information of interest to investors, analysts and other parties including supplemental financial information and reconciliations and other information concerning our use of non-US GAAP financial measures.

Presentation

This document presents the Company's business segments in two subtotals, reflecting our two cores, the Acetyl Chain and Materials Solutions, based on similarities among customers, business models and technical processes. As described in the Company's annual report on Form 10-K and quarterly reports on Form 10-Q, the Acetyl Chain includes the Company's Acetyl Intermediates segment and the Industrial Specialties segment. Materials Solutions includes the Company's Advanced Engineered Materials segment and the Consumer Specialties segment. For comparative purposes, the historical financial information included herein has been presented to reflect the Acetyl Chain and Materials Solutions subtotals. There has been no change to the composition of the Company's business segments.

Use of Non-US GAAP Financial Measures

From time to time, management may publicly disclose certain numerical "non-GAAP financial measures" in the course of our earnings releases, financial presentations, earnings conference calls, investor and analyst meetings and otherwise. For these purposes, the Securities and Exchange Commission ("SEC") defines a "non-GAAP financial measure" as a numerical measure of historical or future financial performance, financial position, or cash flows that excludes amounts, or is subject to adjustments that effectively exclude amounts, included in the most directly comparable measure calculated and presented in accordance with US GAAP, and vice versa for measures that include amounts, or are subject to adjustments that effectively include amounts, that are excluded from the most directly comparable US GAAP measure so calculated and presented. For these purposes, "GAAP" refers to generally accepted accounting principles in the United States.

Non-GAAP financial measures disclosed by management are provided as additional information to investors, analysts and other parties because the Company believes them to be important supplemental measures for assessing our financial and operating results and as a means to evaluate our financial condition and period-to-period comparisons. These non-GAAP financial measures should be viewed as supplemental to, and should not be considered in isolation or as alternatives to, net earnings (loss), operating profit (loss), operating margin, cash flow from operating activities (together with cash flow from investing and financing activities), earnings per share or any other US GAAP financial measure. These non-GAAP financial measures should be considered within the context of our complete audited and unaudited financial results for the given period, which are available on the Investor Relations/Financial Information/SEC Filings page of our website, www.celanese.com. The definition and method of calculation of the non-GAAP financial measures used herein may be different from other companies' methods for calculating measures with the same or similar titles. Investors, analysts and other parties should understand how another company calculates such non-GAAP financial measures before comparing the other company's non-GAAP financial measures to any of our own. These non-GAAP financial measures may not be indicative of the historical operating results of the Company nor are they intended to be predictive or projections of future results.

Pursuant to the requirements of SEC Regulation G, whenever we refer to a non-GAAP financial measure, we will also present in this document, in the presentation itself or on a Form 8-K in connection with the presentation on the Investor Relations/Financial Information/Non-GAAP Financial Measures page of our website, www.celanese.com, to the extent practicable, the most directly comparable financial measure calculated and presented in accordance with GAAP, along with a reconciliation of the differences between the non-GAAP financial measure we reference and such comparable GAAP financial measure.

This document includes definitions and reconciliations of non-GAAP financial measures used from time to time by the Company.

1

Specific Measures Used

This document provides information about the following non-GAAP measures: adjusted EBIT, adjusted EBIT margin, operating EBITDA, operating EBITDA margin, operating profit (loss) attributable to Celanese Corporation, adjusted earnings per share, net debt, free cash flow and return on invested capital (adjusted). The most directly comparable financial measure presented in accordance with US GAAP in our consolidated financial statements for adjusted EBIT and operating EBITDA is net earnings (loss) attributable to Celanese Corporation; for adjusted EBIT margin and operating EBITDA margin is operating margin; for operating profit (loss) attributable to Celanese Corporation is operating profit (loss); for adjusted earnings per share is earnings (loss) from continuing operations attributable to Celanese Corporation per common share-diluted; for net debt is total debt; for free cash flow is net cash provided by (used in) operations; and for return on invested capital (adjusted) is net earnings (loss) attributable to Celanese Corporation divided by the sum of the average of beginning and end of the year short- and long-term debt and Celanese Corporation stockholders' equity.

Definitions

• Adjusted EBIT is a performance measure used by the Company and is defined by the Company as net earnings (loss) attributable to Celanese Corporation, plus (earnings) loss from discontinued operations, less interest income, plus interest expense, plus refinancing expense and taxes, and further adjusted for Certain Items (refer to Table 8). We believe that adjusted EBIT provides transparent and useful information to management, investors, analysts and other parties in evaluating and assessing our primary operating results from period-to-period after removing the impact of unusual, non-operational or restructuring-related activities that affect comparability. Our management recognizes that adjusted EBIT has inherent limitations because of the excluded items. Adjusted EBIT is one of the measures management uses for planning and budgeting, monitoring and evaluating financial and operating results and as a performance metric in the Company's incentive compensation plan. We may provide guidance on adjusted EBIT but are unable to reconcile forecasted adjusted EBIT to a US GAAP financial measure without unreasonable efforts because a forecast of Certain Items, such as mark-to-market pension gains and losses, which may be significant, is not practical. Adjusted EBIT margin is defined by the Company as adjusted EBIT divided by net sales. Adjusted EBIT margin has the same uses and limitations as Adjusted EBIT.

• Adjusted EBIT by core (i.e. Acetyl Chain and/or Materials Solutions) may also be referred to by management as core income. Adjusted EBIT margin by core may also be referred to by management as core income margin. Adjusted EBIT by business segment may also be referred to by management as segment income. Adjusted EBIT margin by business segment may also be referred to by management as segment income margin.

• Operating EBITDA is a performance measure used by the Company and is defined by the Company as net earnings (loss) attributable to Celanese Corporation, plus (earnings) loss from discontinued operations, less interest income, plus interest expense, plus refinancing expense, taxes and depreciation and amortization, and further adjusted for Certain Items, which Certain Items include accelerated depreciation and amortization expense. Operating EBITDA is equal to adjusted EBIT plus depreciation and amortization. We believe that Operating EBITDA provides transparent and useful information to investors, analysts and other parties in evaluating our operating performance relative to our peer companies. Operating EBITDA margin is defined by the Company as Operating EBITDA divided by net sales. Operating EBITDA margin has the same uses and limitations as Operating EBITDA.

• Operating profit (loss) attributable to Celanese Corporation is defined by the Company as operating profit (loss), less earnings (loss) attributable to noncontrolling interests ("NCI"). We believe that operating profit (loss) attributable to Celanese Corporation provides transparent and useful information to management, investors, analysts and other parties in evaluating our core operational performance. Operating margin attributable to Celanese Corporation is defined by the Company as operating profit (loss) attributable to Celanese Corporation divided by net sales. Operating margin attributable to Celanese Corporation has the same uses and limitations as Operating profit (loss) attributable to Celanese Corporation.

• Adjusted earnings per share is a performance measure used by the Company and is defined by the Company as earnings (loss) from continuing operations attributable to Celanese Corporation, adjusted for income tax (provision) benefit, Certain Items, and refinancing and related expenses, divided by the number of basic common shares and dilutive restricted stock units and stock options calculated using the treasury method. We believe that adjusted earnings per share provides transparent and useful information to management, investors, analysts and other parties in evaluating and assessing our primary operating results from period-to-period after removing the impact of the above stated items that affect comparability. We may provide guidance on adjusted earnings per share but are unable to reconcile forecasted adjusted earnings per share to a GAAP financial measure without unreasonable efforts because a forecast of Certain Items, such as mark-to-market pension gains and losses, which may be significant, is not practical.

Note: The income tax expense (benefit) on Certain Items ("Non-GAAP adjustments") is determined using the applicable rates in the taxing jurisdictions in which the non-GAAP adjustments occurred and includes both current and deferred income tax expense (benefit). The income tax rate used for adjusted earnings per share approximates the midpoint in a range of forecasted tax rates for the year. This range may include certain partial or full-year forecasted tax opportunities and related costs, where applicable, and specifically excludes changes in uncertain tax positions, discrete recognition of GAAP items on a quarterly basis, other pre-tax items adjusted out of our GAAP earnings for adjusted earnings per share purposes and changes in management's assessments regarding the ability to realize deferred tax assets for GAAP. In determining the adjusted earnings per share tax rate, we reflect the impact of foreign tax credits when utilized, or expected to be utilized, absent discrete events impacting the timing of foreign tax credit utilization. We analyze this rate quarterly

2

and adjust it if there is a material change in the range of forecasted tax rates; an updated forecast would not necessarily result in a change to our tax rate used for adjusted earnings per share. The adjusted tax rate is an estimate and may differ from the actual tax rate used for GAAP reporting in any given reporting period. Table 3a summarizes the reconciliation of our GAAP effective tax rate to the adjusted tax rate.

• Free cash flow is a liquidity measure used by the Company and is defined by the Company as net cash provided by (used in) operations, less capital expenditures on property, plant and equipment, and adjusted for capital contributions from or distributions to Mitsui & Co., Ltd. ("Mitsui") related to our methanol joint venture, Fairway Methanol LLC ("Fairway"). We believe that free cash flow provides useful information to management, investors, analysts and other parties in evaluating the Company's liquidity and credit quality assessment because it provides an indication of the long-term cash generating ability of our business. Although we use free cash flow as a measure to assess the liquidity generated by our business, the use of free cash flow has important limitations, including that free cash flow does not reflect the cash requirements necessary to service our indebtedness, lease obligations, unconditional purchase obligations or pension and postretirement funding obligations.

• Net debt is defined by the Company as total debt less cash and cash equivalents. We believe that net debt provides useful information to management, investors, analysts and other parties in evaluating changes to the Company's capital structure and credit quality assessment.

• Return on invested capital (adjusted) is defined by the Company as adjusted EBIT, tax effected using the adjusted tax rate, divided by the sum of the average of beginning and end of the year short- and long-term debt and Celanese Corporation stockholders' equity. We believe that return on invested capital (adjusted) provides useful information to management, investors, analysts and other parties in order to assess our income generation from the point of view of our stockholders and creditors who provide us with capital in the form of equity and debt and whether capital invested in the Company yields competitive returns. In addition, achievement of certain predetermined targets relating to return on invested capital (adjusted) is one of the factors we consider in determining the amount of performance-based compensation received by our management.

Supplemental Information

Supplemental Information we believe to be of interest to investors, analysts and other parties includes the following:

• Net sales for Materials Solutions, the Acetyl Chain and each of our business segments and the percentage increase or decrease in net sales attributable to price, volume, currency and other factors for Materials Solutions, the Acetyl Chain and each of our business segments.

• Cash dividends received from our equity and cost investments.

• For those consolidated ventures in which the Company owns or is exposed to less than 100% of the economics, the outside stockholders' interests are shown as NCI. Beginning in 2014, this includes Fairway for which the Company's ownership percentage is 50%. Amounts referred to as "attributable to Celanese Corporation" are net of any applicable NCI.

Results Unaudited

The results in this document, together with the adjustments made to present the results on a comparable basis, have not been audited and are based on internal financial data furnished to management. Quarterly results should not be taken as an indication of the results of operations to be reported for any subsequent period or for the full fiscal year.

3

Table 1

Adjusted EBIT and Operating EBITDA - Reconciliation of Non-GAAP Measures - Unaudited

	2015		2014		2013		2012		2011		2010
	(In $ millions)
Net earnings (loss) attributable to Celanese Corporation	304		624		1,101		372		427		312
(Earnings) loss from discontinued operations	2		7		—		4		(1	)	49
Interest income	(1	)	(1	)	(1	)	(2	)	(3	)	(7	)
Interest expense	119		147		172		185		221		204
Refinancing expense	—		29		1		3		3		16
Income tax provision (benefit)	201		314		508		(55	)	41		72
Certain Items attributable to Celanese Corporation (Table 8)	611		148		(725	)	455		405		197
Adjusted EBIT	1,236		1,268		1,056		962		1,093		843
Depreciation and amortization expense(1)	279		290		302		300		287		258
Operating EBITDA	1,515		1,558		1,358		1,262		1,380		1,101

	2015	2014	2013	2012	2011	2010
	(In $ millions)
Advanced Engineered Materials	—	—	—	—	3	4
Consumer Specialties	10	—	—	6	8	5
Industrial Specialties	28	2	3	2	—	—
Acetyl Intermediates	40	—	—	—	—	20
Other Activities(2)	—	—	—	—	—	—
Accelerated depreciation and amortization expense	78	2	3	8	11	29
Depreciation and amortization expense(1)	279	290	302	300	287	258
Total depreciation and amortization expense	357	292	305	308	298	287

______________________________

⁽¹⁾  Excludes accelerated depreciation and amortization expense as detailed in the table above, which amounts are included in Certain Items above.

⁽²⁾  Other Activities includes corporate Selling, general and administrative ("SG&A") expenses, the results of captive insurance companies and certain components of net periodic benefit cost (interest cost, expected return on plan assets and net actuarial gains and losses).

4

Table 2 - Supplemental Segment Data and Reconciliation of Segment Adjusted EBIT and Operating EBITDA - Non-GAAP Measures - Unaudited

	2015					2014				2013				2012				2011				2010
	(In $ millions, except percentages)
Operating Profit (Loss) / Operating Margin
Materials Solutions	497			21.7	%	609		23.3	%	1,250		48.7	%	346		14.1	%	308		12.5	%	345		15.6	%
Acetyl Chain(1)	69			2.0	%	634		14.7	%	217		5.3	%	355		8.7	%	560		12.6	%	326		8.5	%
Other Activities(2)	(240	)				(485	)			41				(526	)			(466	)			(273	)
Total	326			5.7	%	758		11.1	%	1,508		23.2	%	175		2.7	%	402		5.9	%	398		6.7	%
Less: Net Earnings (Loss) Attributable to NCI(1)	(19	)				(4	)			—				—				—				—
Operating Profit (Loss) Attributable to Celanese Corporation	345			6.1	%	762		11.2	%	1,508		23.2	%	175		2.7	%	402		5.9	%	398		6.7	%
Operating Profit (Loss) / Operating Margin Attributable to Celanese Corporation
Advanced Engineered Materials	235			17.7	%	221		15.1	%	904		66.9	%	95		7.5	%	79		6.1	%	182		16.4	%
Consumer Specialties	262			27.0	%	388		33.4	%	346		28.5	%	251		21.2	%	229		19.7	%	163		14.8	%
Total Materials Solutions	497			21.7	%	609		23.3	%	1,250		48.7	%	346		14.1	%	308		12.5	%	345		15.6	%
Industrial Specialties	72			6.7	%	76		6.2	%	64		5.5	%	86		7.3	%	102		8.3	%	89		8.6	%
Acetyl Intermediates(1)	16			0.6	%	562		16.1	%	153		4.7	%	269		8.3	%	458		12.9	%	237		7.7	%
Total Acetyl Chain	88			2.5	%	638		14.8	%	217		5.3	%	355		8.7	%	560		12.6	%	326		8.5	%
Other Activities(2)	(240	)				(485	)			41				(526	)			(466	)			(273	)
Total	345			6.1	%	762		11.2	%	1,508		23.2	%	175		2.7	%	402		5.9	%	398		6.7	%
Equity Earnings, Cost-Dividend Income, Other Income (Expense) Attributable to Celanese Corporation
Advanced Engineered Materials	151		(3)			161				149				190				163				143
Consumer Specialties	108					124				95				90				80				73
Total Materials Solutions	259					285				244				280				243				216
Industrial Specialties	—					—				—				—				2				—
Acetyl Intermediates	7					21				5				13				10				9
Total Acetyl Chain	7					21				5				13				12				9
Other Activities(2)	14					52				24				39				31				23
Total	280					358				273				332				286				248
Certain Items Attributable to Celanese Corporation(Table 8)
Advanced Engineered Materials	11					(53	)			(752	)			16				60				(38	)
Consumer Specialties	41					(52	)			(5	)			34				23				97
Total Materials Solutions	52					(105	)			(757	)			50				83				59
Industrial Specialties	38					(12	)			9				2				1				(19	)
Acetyl Intermediates	365					(36	)			143				5				(3	)			62
Total Acetyl Chain	403					(48	)			152				7				(2	)			43
Other Activities(2)	156					301				(120	)			398				324				95
Total	611					148				(725	)			455				405				197
Adjusted EBIT / Adjusted EBIT Margin
Advanced Engineered Materials	397			29.9	%	329		22.5	%	301		22.3	%	301		23.9	%	302		23.3	%	287		25.9	%
Consumer Specialties	411			42.4	%	460		39.7	%	436		35.9	%	375		31.6	%	332		28.6	%	333		30.3	%
Total Materials Solutions	808			35.2	%	789		30.1	%	737		28.7	%	676		27.6	%	634		25.8	%	620		28.1	%
Industrial Specialties	110			10.2	%	64		5.2	%	73		6.3	%	88		7.4	%	105		8.6	%	70		6.8	%
Acetyl Intermediates	388			14.1	%	547		15.7	%	301		9.3	%	287		8.9	%	465		13.1	%	308		10.0	%
Total Acetyl Chain	498			14.2	%	611		14.2	%	374		9.2	%	375		9.2	%	570		12.9	%	378		9.9	%
Other Activities(2)	(70	)				(132	)			(55	)			(89	)			(111	)			(155	)
Total	1,236			21.8	%	1,268		18.6	%	1,056		16.2	%	962		15.0	%	1,093		16.2	%	843		14.2	%

___________________________

⁽¹⁾  Net earnings (loss) attributable to NCI is included within the Acetyl Intermediates segment.

⁽²⁾  Other Activities includes corporate SG&A expenses, the results of captive insurance companies and certain components of net periodic benefit cost (interest cost, expected return on plan assets and net actuarial gains and losses).

⁽³⁾  Includes $150 million of Equity in net earnings (loss) of affiliates and $1 million of Other income.

5

Table 2 - Supplemental Segment Data and Reconciliation of Segment Adjusted EBIT and Operating EBITDA - Non-GAAP Measures - Unaudited

	2015				2014				2013				2012				2011				2010
	(In $ millions, except percentages)
Depreciation and Amortization Expense Attributable to Celanese Corporation(1)
Advanced Engineered Materials	99				106				110				113				97				72
Consumer Specialties	50				43				41				39				36				37
Total Materials Solutions	149				149				151				152				133				109
Industrial Specialties	36				48				49				53				45				41
Acetyl Intermediates	83				81				86				80				96				97
Total Acetyl Chain	119				129				135				133				141				138
Other Activities(2)	11				12				16				15				13				11
Total	279				290				302				300				287				258
Operating EBITDA / Operating EBITDA Margin
Advanced Engineered Materials	496		37.4	%	435		29.8	%	411		30.4	%	414		32.8	%	399		30.7	%	359		32.4	%
Consumer Specialties	461		47.6	%	503		43.4	%	477		39.3	%	414		34.9	%	368		31.7	%	370		33.7	%
Total Materials Solutions	957		41.7	%	938		35.8	%	888		34.6	%	828		33.8	%	767		31.2	%	729		33.0	%
Industrial Specialties	146		13.5	%	112		9.2	%	122		10.6	%	141		11.9	%	150		12.3	%	111		10.7	%
Acetyl Intermediates	471		17.2	%	628		18.0	%	387		11.9	%	367		11.4	%	561		15.8	%	405		13.1	%
Total Acetyl Chain	617		17.6	%	740		17.2	%	509		12.5	%	508		12.4	%	711		16.0	%	516		13.5	%
Other Activities(2)	(59	)			(120	)			(39	)			(74	)			(98	)			(144	)
Total	1,515		26.7	%	1,558		22.9	%	1,358		20.9	%	1,262		19.7	%	1,380		20.4	%	1,101		18.6	%

___________________________

⁽¹⁾  Excludes accelerated depreciation and amortization expense, which amounts are included in Certain Items above. See Table 1 for details.

⁽²⁾  Other Activities includes corporate SG&A expenses, the results of captive insurance companies and certain components of net periodic benefit cost (interest cost, expected return on plan assets and net actuarial gains and losses).

6

Table 2a

Segment Data and Reconciliation of Adjusted EBIT - Non-GAAP Measures - Unaudited

	Q1 '17		Q4 '16		Q3 '16		Q2 '16		Q1 '16		Q4 '15		Q3 '15		Q2 '15		Q1 '15		Q4 '14		Q3 '14		Q2 '14
	(In $ millions)
Net Sales
Advanced Engineered Materials	487		364		365		365		350		311		326		346		343		331		366		389
Consumer Specialties	218		225		225		235		244		246		247		249		227		278		291		289
Total Materials Solutions	705		589		590		600		594		557		573		595		570		609		657		678
Industrial Specialties	245		219		245		262		253		239		274		287		282		265		314		333
Acetyl Intermediates	619		597		589		592		663		644		680		707		713		814		937		901
Eliminations	(70	)	(67	)	(71	)	(74	)	(76	)	(71	)	(82	)	(83	)	(87	)	(97	)	(109	)	(113	)
Total Acetyl Chain	794		749		763		780		840		812		872		911		908		982		1,142		1,121
Eliminations	(28	)	(27	)	(30	)	(29	)	(30	)	(35	)	(32	)	(29	)	(28	)	(32	)	(30	)	(30	)
Total	1,471		1,311		1,323		1,351		1,404		1,334		1,413		1,477		1,450		1,559		1,769		1,769
Operating Profit (Loss) Attributable to Celanese Corporation
Advanced Engineered Materials	98		87		93		82		88		51		58		67		59		57		51		56
Consumer Specialties	68		76		68		80		78		46		77		77		62		104		105		80
Total Materials Solutions	166		163		161		162		166		97		135		144		121		161		156		136
Industrial Specialties	25		20		25		29		31		(4	)	19		28		29		16		16		24
Acetyl Intermediates(1)	26		65		82		75		112		(239	)	64		58		133		146		175		143
Eliminations	—		—		—		1		—		—		—		—		—		—		—		—
Total Acetyl Chain	51		85		107		105		143		(243	)	83		86		162		162		191		167
Other Activities(2)	(26	)	(132	)	(23	)	(26	)	(24	)	(156	)	(22	)	(38	)	(24	)	(376	)	(36	)	(43	)
Total	191		116		245		241		285		(302	)	196		192		259		(53	)	311		260
Equity Earnings, Cost-Dividend Income, Other Income (Expense) Attributable to Celanese Corporation
Advanced Engineered Materials	42		31		33		27		31		33		44		31		43		40		43		45
Consumer Specialties	30		27		27		28		28		27		26		27		28		30		29		35
Total Materials Solutions	72		58		60		55		59		60		70		58		71		70		72		80
Industrial Specialties	—		—		—		—		—		—		—		—		—		—		—		—
Acetyl Intermediates	1		2		1		2		2		3		2		1		1		3		2		15
Total Acetyl Chain	1		2		1		2		2		3		2		1		1		3		2		15
Other Activities(2)	4		7		6		5		4		5		(4	)	9		4		6		5		36
Total	77		67		67		62		65		68		68		68		76		79		79		131

___________________________

⁽¹⁾  Excludes amounts attributable to NCI as follows:

	Q1 '17	Q4 '16	Q3 '16	Q2 '16	Q1 '16	Q4 '15		Q3 '15		Q2 '15		Q1 '15		Q4 '14		Q3 '14		Q2 '14
	(In $ millions)
Operating Profit (Loss)	1	1	1	2	2	(3	)	(10	)	(4	)	(2	)	(1	)	(1	)	(1	)

⁽²⁾  Other Activities includes corporate SG&A expenses, the results of captive insurance companies and certain components of net periodic benefit cost (interest cost, expected return on plan assets and net actuarial gains and losses).

7

Table 2a

Segment Data and Reconciliation of Adjusted EBIT - Non-GAAP Measures - Unaudited (Cont.)

	Q1 '17		Q4 '16		Q3 '16		Q2 '16		Q1 '16		Q4 '15		Q3 '15		Q2 '15		Q1 '15		Q4 '14		Q3 '14		Q2 '14
	(In $ millions, except percentages)
Certain Items Attributable to Celanese Corporation
Advanced Engineered Materials	3		3		1		2		1		1		4		4		2		(33	)	(7	)	(7	)
Consumer Specialties	2		3		3		—		—		36		2		1		2		(24	)	(18	)	(8	)
Total Material Solutions	5		6		4		2		1		37		6		5		4		(57	)	(25	)	(15	)
Industrial Specialties	—		(2	)	—		1		2		26		9		2		1		(9	)	(1	)	(2	)
Acetyl Intermediates	56		1		1		3		1		296		18		48		3		(12	)	(9	)	(12	)
Total Acetyl Chain	56		(1	)	1		4		3		322		27		50		4		(21	)	(10	)	(14	)
Other Activities(1)	4		101		2		3		4		131		8		10		7		334		—		(33	)
Total	65		106		7		9		8		490		41		65		15		256		(35	)	(62	)
Adjusted EBIT
Advanced Engineered Materials	143		121		127		111		120		85		106		102		104		64		87		94
Consumer Specialties	100		106		98		108		106		109		105		105		92		110		116		107
Total Material Solutions	243		227		225		219		226		194		211		207		196		174		203		201
Industrial Specialties	25		18		25		30		33		22		28		30		30		7		15		22
Acetyl Intermediates	83		68		84		80		115		60		84		107		137		137		168		146
Eliminations	—		—		—		1		—		—		—		—		—		—		—		—
Total Acetyl Chain	108		86		109		111		148		82		112		137		167		144		183		168
Other Activities(1)	(18	)	(24	)	(15	)	(18	)	(16	)	(20	)	(18	)	(19	)	(13	)	(36	)	(31	)	(40	)
Total	333		289		319		312		358		256		305		325		350		282		355		329
Last Twelve Months
Acetyl Chain Adjusted EBIT	414								479								662
Acetyl Chain Adjusted EBIT margin(2)	13.4	%							13.9	%							15.9	%

______________________________

⁽¹⁾  Other Activities includes corporate SG&A expenses, the results of captive insurance companies and certain components of net periodic benefit cost (interest cost, expected return on plan assets and net actuarial gains and losses).

⁽²⁾  Defined as Acetyl Chain Adjusted EBIT divided by Net sales.

8

Table 2a

Segment Data and Reconciliation of Adjusted EBIT - Non-GAAP Measures - Unaudited (Cont.)

	Q1 '14		Q4 '13		Q3 '13		Q2 '13		Q1 '13		Q4 '12		Q3 '12		Q2 '12		Q1 '12		Q4 '11		Q3 '11		Q2 '11
	(In $ millions)
Net Sales
Advanced Engineered Materials	373		325		346		352		329		299		322		323		317		292		332		346
Consumer Specialties	302		295		310		314		295		281		314		327		264		306		298		291
Total Materials Solutions	675		620		656		666		624		580		636		650		581		598		630		637
Industrial Specialties	312		273		299		295		288		251		297		327		309		272		332		329
Acetyl Intermediates	841		829		795		809		808		773		785		821		852		849		975		914
Eliminations	(92	)	(79	)	(85	)	(86	)	(84	)	(74	)	(80	)	(89	)	(78	)	(77	)	(95	)	(91	)
Total Acetyl Chain	1,061		1,023		1,009		1,018		1,012		950		1,002		1,059		1,083		1,044		1,212		1,152
Eliminations	(31	)	(27	)	(29	)	(31	)	(31	)	(29	)	(29	)	(34	)	(31	)	(28	)	(35	)	(36	)
Total	1,705		1,616		1,636		1,653		1,605		1,501		1,609		1,675		1,633		1,614		1,807		1,753
Operating Profit (Loss) Attributable to Celanese Corporation
Advanced Engineered Materials	57		781		48		39		36		4		44		23		24		(4	)	16		27
Consumer Specialties	99		100		85		83		78		62		72		77		40		58		67		49
Total Materials Solutions	156		881		133		122		114		66		116		100		64		54		83		76
Industrial Specialties	20		7		24		18		15		6		25		35		20		17		31		28
Acetyl Intermediates(1)	98		(44	)	67		55		75		66		63		78		62		64		129		153
Total Acetyl Chain	118		(37	)	91		73		90		72		88		113		82		81		160		181
Other Activities(2)	(30	)	100		(13	)	(26	)	(20	)	(428	)	(28	)	(35	)	(35	)	(340	)	(42	)	(44	)
Total	244		944		211		169		184		(290	)	176		178		111		(205	)	201		213
Equity Earnings, Cost-Dividend Income, Other Income (Expense) Attributable to Celanese Corporation
Advanced Engineered Materials	33		33		31		45		40		47		45		55		43		36		53		39
Consumer Specialties	30		24		21		24		26		5		—		84		1		—		—		79
Total Materials Solutions	63		57		52		69		66		52		45		139		44		36		53		118
Industrial Specialties	—		—		—		—		—		—		—		—		—		1		1		—
Acetyl Intermediates	1		(4	)	3		3		3		8		2		2		1		3		3		2
Total Acetyl Chain	1		(4	)	3		3		3		8		2		2		1		4		4		2
Other Activities(2)	5		—		6		10		8		20		7		4		8		11		1		11
Total	69		53		61		82		77		80		54		145		53		51		58		131

___________________________

⁽¹⁾  Excludes amounts attributable to NCI as follows:

	Q1 '14		Q4 '13	Q3 '13	Q2 '13	Q1 '13	Q4 '12	Q3 '12	Q2 '12	Q1 '12	Q4 '11	Q3 '11	Q2 '11
	(In $ millions)
Operating Profit (Loss)	(1	)	—	—	—	—	—	—	—	—	—	—	—

⁽²⁾  Other Activities includes corporate SG&A expenses, the results of captive insurance companies and certain components of net periodic benefit cost (interest cost, expected return on plan assets and net actuarial gains and losses).

9

Table 2a

Segment Data and Reconciliation of Adjusted EBIT - Non-GAAP Measures - Unaudited (Cont.)

	Q1 '14		Q4 '13		Q3 '13		Q2 '13		Q1 '13		Q4 '12		Q3 '12		Q2 '12		Q1 '12		Q4 '11		Q3 '11		Q2 '11
	(In $ millions, except percentages)
Certain Items Attributable to Celanese Corporation
Advanced Engineered Materials	(6	)	(758	)	2		2		2		11		(8	)	10		3		8		18		22
Consumer Specialties	(2	)	(13	)	2		2		4		11		7		(1	)	17		5		3		10
Total Materials Solutions	(8	)	(771	)	4		4		6		22		(1	)	9		20		13		21		32
Industrial Specialties	—		6		1		1		1		—		—		—		2		1		—		—
Acetyl Intermediates	(3	)	132		2		8		1		(5	)	7		1		2		4		12		(2	)
Total Acetyl Chain	(3	)	138		3		9		2		(5	)	7		1		4		5		12		(2	)
Other Activities(1)	—		(120	)	—		—		—		381		—		9		8		307		10		3
Total	(11	)	(753	)	7		13		8		398		6		19		32		325		43		33
Adjusted EBIT
Advanced Engineered Materials	84		56		81		86		78		62		81		88		70		40		87		88
Consumer Specialties	127		111		108		109		108		78		79		160		58		63		70		138
Total Materials Solutions	211		167		189		195		186		140		160		248		128		103		157		226
Industrial Specialties	20		13		25		19		16		6		25		35		22		19		32		28
Acetyl Intermediates	96		84		72		66		79		69		72		81		65		71		144		153
Total Acetyl Chain	116		97		97		85		95		75		97		116		87		90		176		181
Other Activities(1)	(25	)	(20	)	(7	)	(16	)	(12	)	(27	)	(21	)	(22	)	(19	)	(22	)	(31	)	(30	)
Total	302		244		279		264		269		188		236		342		196		171		302		377
Last Twelve Months ("LTM")
Acetyl Chain Adjusted EBIT	395								383								534
Acetyl Chain Adjusted EBIT margin(2)	9.6	%							9.5	%							11.9	%

______________________________

⁽¹⁾  Other Activities includes corporate SG&A expenses, the results of captive insurance companies and certain components of net periodic benefit cost (interest cost, expected return on plan assets and net actuarial gains and losses).

⁽²⁾  Defined as Acetyl Chain Adjusted EBIT divided by Net sales.

10

Table 3

Adjusted Earnings (Loss) per Share - Reconciliation of a Non-GAAP Measure - Unaudited

	2015			2014			2013			2012			2011			2010
			per share			per share			per share			per share			per share			per share
	(In $ millions, except per share data)
Earnings (loss) from continuing operations attributable to Celanese Corporation	306		2.01	631		4.04	1,101		6.91	376		2.35	426		2.68	361		2.28
Income tax provision (benefit)	201			314			508			(55	)		41			72
Earnings (loss) from continuing operations before tax	507			945			1,609			321			467			433
Certain Items attributable to Celanese Corporation(Table 8)	611			148			(725	)		455			405			197
Refinancing and related expenses	—			29			1			8			3			16
Adjusted earnings (loss) from continuing operations before tax	1,118			1,122			885			784			875			646
Income tax (provision) benefit on adjusted earnings(1)	(201	)		(236	)		(168	)		(133	)		(158	)		(136	)
Adjusted earnings (loss) from continuing operations(2)	917		6.02	886		5.67	717		4.50	651		4.07	717		4.51	510		3.22
	Diluted shares (in millions)(3)
Weighted average shares outstanding	150.8			155.0			158.8			158.4			156.2			154.6
Incremental shares attributable to equity awards	1.5			1.2			0.5			1.4			2.7			2.2
Assumed conversion of preferred stock	—			—			—			—			—			1.6
Total diluted shares	152.3			156.2			159.3			159.8			158.9			158.4

______________________________

⁽¹⁾  Calculated using adjusted effective tax rates as follows:

	2015	2014	2013	2012	2011	2010
	(In percentages)
Adjusted effective tax rate	18	21	19	17	18	21

⁽²⁾  Excludes the immediate recognition of actuarial gains and losses and the impact of actual vs. expected plan asset returns.

	Actual Plan Asset Returns		Expected Plan Asset Returns
	(In percentages)
2015	(2.5	)	7.8
2014	12.7		8.2
2013	7.9		8.0
2012	13.1		8.1
2011	7.6		8.1
2010	15.1		8.1

⁽³⁾  Potentially dilutive shares are included in the adjusted earnings per share calculation when adjusted earnings are positive.

11

Table 3a

Adjusted Tax Rate - Reconciliation of a Non-GAAP Measure - Unaudited

	Actual
	2015
	(In percentages)
US GAAP effective tax rate	41
Discrete quarterly recognition of GAAP items(1)	2
Tax impact of other charges and adjustments(2)	(15	)
Utilization of foreign tax credits(3)	(2	)
Changes in valuation allowances, excluding impact of other charges and adjustments(4)	(5	)
Other(5)	(3	)
Adjusted tax rate	18

______________________________

⁽¹⁾  Such as changes in uncertain tax positions, prior year audit adjustments, changes in tax laws and deferred taxes on outside basis differences.

⁽²⁾  Reflects the tax impact on pre-tax adjustments presented in Certain Items (Table 8), which are excluded from pre-tax income for adjusted earnings per share purposes. During 2015, the Company recorded a $123 million long-lived impairment to fully write-off certain ethanol related assets at our facility in Nanjing, China and $174 million charge related to the termination of an existing agreement with a raw materials supplier in Singapore. For US GAAP purposes, these charges were incurred in jurisdictions for which valuation allowances are being recorded. These combined charges make up the majority of the 15% impact for 2015.

⁽³⁾  During 2012, the Company amended its tax returns and recognized $142 million in foreign tax credits for U.S. GAAP purposes. The Company reflects the benefits of these tax credits for adjusted tax rate purposes as they are utilized.

⁽⁴⁾  Reflects changes in valuation allowances related to changes in judgment regarding the realizability of deferred tax assets or current year operations, excluding other charges and adjustments.

⁽⁵⁾  Tax impacts related to full-year forecasted tax opportunities and related costs.

12

Table 4

Net Sales by Segment - Unaudited

	2015		2014		2013		2012		2011		2010
	(In $ millions)
Advanced Engineered Materials	1,326		1,459		1,352		1,261		1,298		1,109
Consumer Specialties	969		1,160		1,214		1,186		1,161		1,098
Total Materials Solutions	2,295		2,619		2,566		2,447		2,459		2,207
Industrial Specialties	1,082		1,224		1,155		1,184		1,223		1,036
Acetyl Intermediates	2,744		3,493		3,241		3,231		3,551		3,082
Eliminations(1)	(323	)	(411	)	(334	)	(321	)	(340	)	(283	)
Total Acetyl Chain	3,503		4,306		4,062		4,094		4,434		3,835
Other Activities(2)	—		—		—		—		1		2
Intersegment eliminations(1)	(124	)	(123	)	(118	)	(123	)	(131	)	(126	)
Net sales	5,674		6,802		6,510		6,418		6,763		5,918

___________________________

⁽¹⁾  Includes intersegment sales as follows:

	2015		2014		2013		2012		2011		2010
	(In $ millions)
Consumer Specialties	—		(2	)	(4	)	(4	)	(3	)	(9	)
Acetyl Intermediates	(447	)	(532	)	(448	)	(440	)	(468	)	(400	)
Intersegment eliminations	(447	)	(534	)	(452	)	(444	)	(471	)	(409	)

⁽²⁾  Other Activities includes corporate SG&A expenses, the results of captive insurance companies and certain components of net periodic benefit cost (interest cost, expected return on plan assets and net actuarial gains and losses).

13

Table 4a

Factors Affecting Segment Net Sales Year Over Year - Unaudited

Year Ended December 31, 2015 Compared to Year Ended December 31, 2014

	Volume		Price		Currency		Other	Total
	(In percentages)
Advanced Engineered Materials	(1	)	(1	)	(7	)	—	(9	)
Consumer Specialties	(13	)	(3	)	(1	)	—	(17	)
Total Materials Solutions	(6	)	(2	)	(4	)	—	(12	)
Industrial Specialties	—		(4	)	(8	)	—	(12	)
Acetyl Intermediates	(3	)	(13	)	(6	)	—	(22	)
Total Acetyl Chain	(3	)	(11	)	(7	)	2	(19	)
Total Company	(4	)	(8	)	(6	)	1	(17	)

Year Ended December 31, 2014 Compared to Year Ended December 31, 2013

	Volume		Price		Currency	Other		Total
	(In percentages)
Advanced Engineered Materials	9		(1	)	—	—		8
Consumer Specialties	(5	)	1		—	—		(4	)
Total Materials Solutions	2		—		—	—		2
Industrial Specialties	1		5		—	—		6
Acetyl Intermediates	(3	)	11		—	—		8
Total Acetyl Chain	(2	)	10		—	(2	)	6
Total Company	—		6		—	(1	)	5

Year Ended December 31, 2013 Compared to Year Ended December 31, 2012

	Volume		Price		Currency	Other		Total
	(In percentages)
Advanced Engineered Materials	5		1		1	—		7
Consumer Specialties	(4	)	6		—	—		2
Total Materials Solutions	1		3		1	—		5
Industrial Specialties	(1	)	(3	)	2	—		(2	)
Acetyl Intermediates	1		(2	)	1	—		—
Total Acetyl Chain	—		(2	)	2	(1	)	(1	)
Total Company	—		—		1	—		1

Year Ended December 31, 2012 Compared to Year Ended December 31, 2011

	Volume		Price		Currency		Other	Total
	(In percentages)
Advanced Engineered Materials	(2	)	2		(3	)	—	(3	)
Consumer Specialties	(4	)	6		—		—	2
Total Materials Solutions	(2	)	4		(2	)	—	—
Industrial Specialties	3		(3	)	(3	)	—	(3	)
Acetyl Intermediates	—		(7	)	(2	)	—	(9	)
Total Acetyl Chain	1		(7	)	(3	)	1	(8	)
Total Company	—		(3	)	(2	)	—	(5	)

Year Ended December 31, 2011 Compared to Year Ended December 31, 2010

	Volume		Price	Currency	Other			Total
	(In percentages)
Advanced Engineered Materials	2		8	3	4		(1)	17
Consumer Specialties	1		5	—	—			6
Total Materials Solutions	1		6	2	2			11
Industrial Specialties	2		13	3	—			18
Acetyl Intermediates	(4	)	16	3	—			15
Total Acetyl Chain	(3	)	17	3	(1	)		16
Total Company	(1	)	13	3	—			15

____________________

⁽¹⁾  Includes the effects of the two product lines acquired in May 2010 from DuPont Performance Polymers.

14

Table 4a

Factors Affecting Segment Net Sales Year Over Year - Unaudited (Cont.)

Year Ended December 31, 2010 Compared to Year Ended December 31, 2009

	Volume	Price	Currency		Other			Total
	(In percentages)
Advanced Engineered Materials	35	1	(3	)	4		(1)	37
Consumer Specialties	2	—	(1	)	—			1
Total Materials Solutions	16	1	(2	)	2			17
Industrial Specialties	11	6	(3	)	(8	)	(2)	6
Acetyl Intermediates	10	10	(2	)	—			18
Total Acetyl Chain	11	10	(2	)	(3	)		16
Total Company	13	7	(2	)	(2	)	(3)	16

____________________

⁽¹⁾  2010 includes the effects of the FACT GmbH (Future Advanced Composites Technology) and DuPont acquisitions.

⁽²⁾  2010 does not include the effects of the PVOH business, which was sold on July 1, 2009.

⁽³⁾  Includes the effects of the captive insurance companies and the impact of fluctuations in intersegment eliminations.

15

Table 5

Free Cash Flow - Reconciliation of a Non-GAAP Measure - Unaudited

	2015		2014		2013		2012		2011		2010
	(In $ millions)
Net cash provided by (used in) investing activities	(558	)	(705	)	(422	)	(500	)	(441	)	(560	)
Net cash provided by (used in) financing activities	(66	)	(415	)	(326	)	49		(253	)	(388	)
Net cash provided by (used in) operating activities	862		962		762		722		638		452
Capital expenditures on property, plant and equipment	(520	)	(678	)	(370	)	(361	)	(349	)	(201	)
Capital (distributions to) contributions from NCI	214		264		—		—		—		—
Free cash flow(1)(2)	556		548		392		361		289		251

______________________________

⁽¹⁾  Free cash flow is a liquidity measure used by the Company and is defined by the Company as net cash provided by (used in) operating activities, less capital expenditures on property, plant and equipment, and adjusted for capital contributions from or distributions to Mitsui & Co., Ltd. ("Mitsui") related to our joint venture, Fairway Methanol LLC ("Fairway").

⁽²⁾  Excludes required debt service and capital lease payments of $25 million for the year ended December 31, 2015.

16

Table 6

Cash Dividends Received - Unaudited

	2015	2014	2013	2012	2011	2010
	(In $ millions)
Dividends from equity method investments	176	148	141	262	205	138
Dividends from cost method investments	107	116	93	85	80	73
Total	283	264	234	347	285	211

Table 7

Net Debt - Reconciliation of a Non-GAAP Measure - Unaudited

	2015		2014		2013		2012		2011		2010
	(In $ millions)
Short-term borrowings and current installments of long-term debt - third party and affiliates	513		137		177		168		144		228
Long-term debt, net of unamortized deferred financing costs	2,468		2,586		2,863		2,903		2,849		2,990
Total debt	2,981		2,723		3,040		3,071		2,993		3,218
Cash and cash equivalents	(967	)	(780	)	(984	)	(959	)	(682	)	(740	)
Net debt	2,014		1,943		2,056		2,112		2,311		2,478

17

Table 8

Certain Items - Unaudited

The following Certain Items attributable to Celanese Corporation are included in Net earnings (loss) and are adjustments to non-GAAP measures:

	2015	2014		2013		2012		2011		2010		Income Statement Classification
	(In $ millions)
Employee termination benefits(1)	53	7		23		6		22		32		Other charges (gains), net
Plant/office closures	48	6		43		21		18		21		Other charges (gains), net / Cost of sales / SG&A
Singapore contract termination	174	—		—		—		—		—		Other charges (gains), net
Business optimization	20	8		—		9		8		16		Cost of sales / SG&A
Asset impairments	126	—		83		8		1		74		Other charges (gains), net / Other income (expense), net
(Gain) loss on disposition of business and assets, net	4	3		2		1		(1	)	(10	)	(Gain) loss on disposition, net
Commercial disputes(2)	6	(11	)	12		(2	)	(7	)	9		Other charges (gains), net / Cost of sales / SG&A
Kelsterbach plant relocation	—	(1	)	(727	)	21		55		13		Other charges (gains), net / Cost of sales / (Gain) loss on disposition
InfraServ Hoechst restructuring	—	(48	)	8		(22	)	—		—		Equity in net (earnings) loss of affiliates
Plumbing actions	—	—		—		(5	)	(6	)	(59	)	Other charges (gains), net
Insurance recoveries	—	—		—		—		—		(18	)	Other charges (gains), net
Write-off of other productive assets	39	5		—		—		(1	)	18		Cost of sales / R&D
Acetate production interruption costs	—	—		—		10		—		9		Cost of sales
Employee benefit plan changes	4	(155	)	(71	)	—		—		—		Cost of sales / SG&A / R&D
Actuarial (gain) loss on pension and postretirement plans	127	349		(106	)	389		306		84		Cost of sales / SG&A / R&D
Start-up costs(3)	10	—		—		—		—		—		Cost of sales
Other	—	(15	)	8		19		10		8		Various
Certain Items attributable to Celanese Corporation	611	148		(725	)	455		405		197

______________________________

⁽¹⁾  Primarily associated with site shutdown costs.

⁽²⁾  Primarily associated with litigation settlement costs.

⁽³⁾  Primarily associated with Fairway joint venture operational start-up costs.

18

Table 9

Return on Invested Capital (Adjusted) - Presentation of a Non-GAAP Measure - Unaudited

			2015				2014				2013
			(In $ millions, except percentages)
Net earnings (loss) attributable to Celanese Corporation			304				624				1,101
Adjusted EBIT(Table 1)			1,236				1,268				1,056
Adjusted effective tax rate			18	%			21	%			19	%
Adjusted EBIT tax effected			1,014				1,002				855
	2015	2014	Average		2014	2013	Average		2013	2012	Average
	(In $ millions, except percentages)
Short-term borrowings and current installments of long-term debt - third parties and affiliates	513	137	325		137	177	157		177	168	173
Long-term debt, net of unamortized deferred financing costs	2,468	2,586	2,527		2,586	2,863	2,725		2,863	2,903	2,883
Celanese Corporation stockholders' equity	2,378	2,818	2,598		2,818	2,699	2,759		2,699	1,730	2,215
Invested capital			5,450				5,641				5,271
Return on invested capital (adjusted)			18.6	%			17.8	%			16.2	%
Net earnings (loss) attributable to Celanese Corporation as a percentage of invested capital			5.6	%			11.1	%			20.9	%

19

Table 9

Return on Invested Capital (Adjusted) - Presentation of a Non-GAAP Measure - Unaudited (Cont.)

			2012				2011				2010
			(In $ millions, except percentages)
Net earnings (loss) attributable to Celanese Corporation			372				427				312
Adjusted EBIT (Table 1)			962				1,093				843
Adjusted effective tax rate			17	%			18	%			21	%
Adjusted EBIT tax effected			798				896				666
	2012	2011	Average		2011	2010	Average		2010	2009	Average
	(In $ millions, except percentages)
Short-term borrowings and current installments of long-term debt - third parties and affiliates	168	144	156		144	228	186		228	242	235
Long-term debt, net of unamortized deferred financing costs	2,903	2,849	2,876		2,849	2,990	2,920		2,990	3,259	3,125
Celanese Corporation stockholders' equity	1,730	1,341	1,536		1,341	926	1,134		926	586	756
Invested capital			4,568				4,240				4,116
Return on invested capital (adjusted)			17.5	%			21.1	%			16.2	%
Net earnings (loss) attributable to Celanese Corporation as a percentage of invested capital			8.1	%			10.1	%			7.6	%

20