Exhibit 7.21

Execution Version

CONTRIBUTION AGREEMENT

This CONTRIBUTION AGREEMENT (this “Agreement”) is made and entered into as of October 17, 2013 by and among BCP (Singapore) VI Cayman Acquisition Co. Ltd., an exempted company with limited liability incorporated under the laws of the Cayman Islands (“Parent”), and certain shareholders of Pactera Technology International Ltd., an exempted company with limited liability incorporated under the laws of the Cayman Islands (the “Company”), listed on Schedule A (each, a “Rollover Shareholder” and collectively, the “Rollover Shareholders”). Capitalized terms used but not defined herein shall have the meanings ascribed to such terms in the Merger Agreement (defined below).

RECITALS

WHEREAS, concurrently herewith, Parent, BCP (Singapore) VI Cayman Financing Co. Ltd., an exempted company with limited liability incorporated under the laws of the Cayman Islands (“Midco”), BCP (Singapore) VI Cayman Merger Co. Ltd., an exempted company with limited liability incorporated under the laws of the Cayman Islands (“Merger Sub”) and the Company are entering into an Agreement and Plan of Merger (the “Merger Agreement”) pursuant to which Merger Sub will merge with and into the Company, with the Company continuing as the surviving corporation (the “Merger”);

WHEREAS, as of the date hereof, each Rollover Shareholder is the “beneficial owner” (within the meaning of Rule 13d-3 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) of such ordinary shares, par value $0.00139482 per share, of the Company, including shares represented by American Depositary Shares (the “Shares”) as set forth opposite such Rollover Shareholder’s name on Schedule A (with respect to each Rollover Shareholder, the “Rollover Shares”);

WHEREAS, in connection with the consummation of the transactions contemplated by the Merger Agreement, the Rollover Shareholders each desire to contribute their respective Rollover Shares to Parent in exchange for newly issued shares of Parent, par value $0.01 per share (the “Parent Shares”);

WHEREAS, concurrently herewith, certain other shareholders of the Company (the “Management Rollover Shareholders”) and Parent are entering into another contribution agreement (the “Management Contribution Agreement”), under which Management Rollover Shareholders agree to contribute their respective Shares to Parent in exchange for certain Parent Shares;

WHEREAS, it is intended that various investors including Affiliates of the Sponsor (the “Investors”) will contribute cash to Parent, in exchange for stock of Parent contemporaneously and in connection with the transactions contemplated herein (the “Investment”) and such stock of Parent when combined with the stock of Parent received by the Rollover Shareholders pursuant to the transactions contemplated herein constitute at least 80% equity ownership interest in Parent after such transactions;

WHEREAS, in order to induce Parent, Midco and Merger Sub to enter into the Merger Agreement and induce Management Rollover Shareholders to enter into the Management

Contribution Agreement and consummate the transactions contemplated thereby, including the Merger, the Rollover Shareholders are entering into this Agreement; and

WHEREAS, the Rollover Shareholders acknowledge that Parent, Midco and Merger Sub are entering into the Merger Agreement and Management Rollover Shareholders are entering into the Management Contribution Agreement in reliance on the representations, warranties, covenants and other agreements of the Rollover Shareholders set forth in this Agreement.

AGREEMENT

NOW, THEREFORE, in consideration of the foregoing and the mutual covenants and agreements herein contained, and intending to be legally bound hereby, Parent and the Rollover Shareholders hereby agree as follows:

1. Contribution of Rollover Shares by Rollover Shareholders to Parent. Subject to the terms and conditions set forth herein, immediately prior to the Closing and (save as described in Section 4 below) without further action by the Rollover Shareholders, all of each Rollover Shareholder’s right, title and interest in and to the Rollover Shares shall be contributed, assigned, transferred and delivered to Parent.

2. Issuance of Parent Shares. In consideration for the contribution, assignment, transfer and delivery of the Rollover Shares to Parent pursuant to Section 1 of this Agreement, Parent shall issue Parent Shares in the name of each Rollover Shareholder in the amounts set forth opposite such Rollover Shareholder’s name in Schedule A. Each Rollover Shareholder hereby acknowledges and agrees that (a) the value of the Parent Shares issued to such Rollover Shareholder is equal to (x) the total number of the Rollover Shares contributed by such Rollover Shareholder multiplied by (y) the Merger Consideration under the Merger Agreement, (b) delivery of such Parent Shares shall constitute complete satisfaction of all obligations towards or sums due to such Rollover Shareholder by Parent with respect to the applicable Rollover Shares, and (c) on receipt of such Parent Shares, such Rollover Shareholder shall have no right to any other consideration with respect to the Rollover Shares contributed to Parent by such Rollover Shareholder. All Parent Shares issued by Parent at or around the Contribution Closing shall be issued to the Rollover Shareholders and other equity investors in Parent pro rata in an amount proportionate to the relative total amounts of (i) the value of the Rollover Shares (based on the per Share Merger Consideration) rolled-over by the Rollover Shareholders, (ii) the value of other rollover Shares (based on the per Share Merger Consideration) rolled-over by the Management Rollover Shareholders, and (iii) the amount of cash equity contributed by such other equity investors.

3. Closing. Subject to (i) the satisfaction in full (or waiver) of all of the conditions set forth in Article VIII of the Merger Agreement (other than conditions that by their nature are to be satisfied at the Closing) and (ii) the concurrent consummation of the transactions contemplated in the Equity Commitment Letter and the Management Contribution Agreement, the closing of the contribution and exchange contemplated hereby (the “Contribution Closing”) shall take place no later than one (1) Business Day prior to the Closing.

4. Deposit of Rollover Shares. No later than three (3) Business Days prior to the Contribution Closing, the Rollover Shareholders and any agent of the Rollover Shareholders shall deliver or cause to be delivered to Parent, for disposition in accordance with the terms hereof, (a) duly executed instruments of transfer of the Rollover Shares to Parent or as Parent may direct in writing, in form reasonably acceptable to Parent, and (b) share certificates, if any, representing the Rollover Shares (the “Rollover Shares Documents”). The Rollover Shares Documents shall be held by Parent or any agent authorized by Parent until the Contribution Closing.

5. Irrevocable Election.

(a) The execution of this Agreement by the Rollover Shareholders evidences, subject to Section 10 and the proviso in Section 11(o), the irrevocable election and agreement by the Rollover Shareholders to contribute their respective Rollover Shares in exchange for Parent Shares at the Contribution Closing on the terms and conditions set forth herein. In furtherance of the foregoing, each Rollover Shareholder covenants and agrees, severally and jointly, that from the date hereof until any termination of this Agreement pursuant to Section 10, such Rollover Shareholder shall not, directly or indirectly, (i) sell, offer to sell, give, pledge, encumber, assign, grant any option for the sale of or otherwise transfer or dispose of, or enter into any agreement, arrangement or understanding to sell or otherwise transfer or dispose of, an interest in any Rollover Shares (“Transfer”) or permit the Transfer by any of its Affiliates of an interest in any Rollover Shares, in each case, except as expressly contemplated under this Agreement, the Merger Agreement and the Investment Agreement, (ii) enter into any contract, option or other arrangement or understanding with respect to a Transfer or limitation on voting rights of any of the Rollover Shares, or any right, title or interest thereto or therein, (iii) deposit any Rollover Shares into a voting trust or grant any proxies or enter into a voting agreement, power of attorney or voting trust with respect to any Rollover Shares (other than the Voting Agreement and the Consortium Agreement), or (iv) take any action that could reasonably be expected to have the effect of preventing, disabling or delaying such Rollover Shareholder from performing its obligations under this Agreement. Any purported Transfer in violation of this paragraph shall be null and void.

(b) Each Rollover Shareholder covenants and agrees, severally and jointly, that such Rollover Shareholder shall promptly (and in any event within 48 hours) notify Parent of any new Shares with respect to which beneficial ownership is acquired by such Rollover Shareholder, including, without limitation, by purchase, as a result of a share dividend, share split, recapitalization, combination, reclassification, exchange or change of such shares, or upon exercise or conversion of any securities of the Company, if any, after the date hereof. Any such Shares shall automatically become subject to the terms of this Agreement as Rollover Shares, and Schedule A shall be deemed amended accordingly.

6. Representations and Warranties of the Rollover Shareholders. In consideration of Parent accepting the Rollover Shares, each Rollover Shareholder makes the following representations and warranties, severally and jointly, to Parent, each and all of which shall be true and correct as of the date of this Agreement and as of the Contribution Closing, and shall survive the execution and delivery of this Agreement:

(a) Ownership of Shares. Such Rollover Shareholder is the beneficial owner of, and has good and valid title to, the Rollover Shares, free and clear of Encumbrances other than as created by this Agreement, the Voting Agreement and the Investment Agreement. Such Rollover Shareholder has sole voting power, sole power of disposition, sole power to demand dissenter’s rights (if applicable) and sole power to agree to all of the matters set forth in this Agreement, in each case with respect to all of the Rollover Shares, with no limitations, qualifications, or restrictions on such rights, subject to applicable United States federal securities Laws, Laws of the Cayman Islands and the terms of this Agreement, the Voting Agreement and the Investment Agreement. As of the date hereof, other than the Rollover Shares and other securities listed on Schedule A hereof, such Rollover Shareholder does not own, beneficially or of record, any securities of the Company and any direct or indirect interest in any such securities (including by way of derivative securities). The Rollover Shares are not subject to any voting trust agreement or other Contract to which such Rollover Shareholder is a party restricting or otherwise relating to the voting or Transfer of the Rollover Shares other than this Agreement, the Voting Agreement or the Investment Agreement. Such Rollover Shareholder has not appointed or granted any proxy or power of attorney that is still in effect with respect to any Rollover Shares, except as contemplated by this Agreement or the Voting Agreement.

(b) Organization, Standing and Authority. Each such Rollover Shareholder is duly organized, validly existing and in good standing under the Laws of the jurisdiction of its formation and has all requisite power and authority to execute and deliver this Agreement and to perform its obligations hereunder, with no limitations, qualifications or restrictions on such power, subject to applicable securities laws and the terms of this Agreement. This Agreement has been duly and validly executed and delivered by such Rollover Shareholder and, assuming due authorization, execution and delivery by Parent, constitutes a legal, valid and binding obligation of such Rollover Shareholder, enforceable against such Rollover Shareholder in accordance with its terms, except as enforcement may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar Laws affecting creditors’ rights generally and by general principles of equity (regardless of whether considered in a proceeding in equity or at Law).

(c) Consents and Approvals; No Violations. Except for the applicable requirements of the Exchange Act, (i) no filing with, and no permit, authorization, consent or approval of, any Governmental Authority is necessary on the part of such Rollover Shareholder for the execution, delivery and performance of this Agreement by such Rollover Shareholder or the consummation by such Rollover Shareholder of the transactions contemplated hereby; and (ii) neither the execution, delivery or performance of this Agreement by such Rollover Shareholder nor the consummation by such Rollover Shareholder of the transactions contemplated hereby, nor compliance by such Rollover Shareholder with any of the provisions hereof shall (A) require the consent or approval of any other Person pursuant to any agreement, obligation or instrument binding on such Rollover Shareholder or its properties or assets, (B) conflict with or violate any provision of the organizational documents of any such Rollover Shareholder, (C) result in any breach or violation of, or constitute a default (or an event which, with notice or lapse of time or both, would become a default) under, or give to others any rights of termination, amendment, acceleration or cancellation of, or result in the creation of an Encumbrance on property or assets of such Rollover Shareholder pursuant to any Contract to which such Rollover Shareholder is a party or by which such Rollover Shareholder or any property or asset of such Rollover Shareholder is bound or affected, or (D) violate any order, writ, injunction, decree, statute, rule

or regulation applicable to such Rollover Shareholder or any of such Rollover Shareholder’s properties or assets.

(d) No Litigation. There is no action, suit, investigation, complaint or other proceeding pending against any such Rollover Shareholder or, to the knowledge of such Rollover Shareholder, any other Person or, to the knowledge of such Rollover Shareholder, threatened against any Rollover Shareholder or any other Person that restricts or prohibits (or, if successful, would restrict or prohibit) the performance by such Rollover Shareholder of its obligations under this Agreement.

(e) Reliance. Such Rollover Shareholder understands and acknowledges that Parent, Midco and Merger Sub are entering into the Merger Agreement and Management Rollover Shareholders are entering into the Management Contribution Agreement in reliance upon such Rollover Shareholder’s execution and delivery of this Agreement and the representations and warranties of such Rollover Shareholder contained herein.

(f) Receipt of Information. Such Rollover Shareholder has been afforded the opportunity to ask such questions as it has deemed necessary of, and to receive answers from, representatives of Parent concerning the terms and conditions of the transactions contemplated hereby and the merits and risks of owning the Parent Shares. Such Rollover Shareholder acknowledges that it has been advised to discuss with its own counsel the meaning and legal consequences of such Rollover Shareholder’s representations and warranties in this Agreement and the transactions contemplated hereby.

7. Representations and Warranties of Parent. Parent represents and warrants to each Rollover Shareholder that:

(a) Organization, Standing and Authority. Parent is duly organized, validly existing and in good standing under the Laws of the jurisdiction of its formation and has all requisite power and authority to execute and deliver this Agreement and to perform its obligations hereunder. This Agreement has been duly and validly executed and delivered by Parent and, assuming due authorization, execution and delivery by the Rollover Shareholders (subject to the proviso in Section 11(o)), constitutes a legal, valid and binding obligation of Parent, enforceable against Parent in accordance with its terms, except as enforcement may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar Laws affecting creditors’ rights generally and by general principles of equity (regardless of whether considered in a proceeding in equity or at Law).

(b) Consents and Approvals; No Violations. Except for the applicable requirements of the Exchange Act and Laws of the Cayman Islands, (i) no filing with, and no permit, authorization, consent or approval of, any Governmental Authority is necessary on the part of Parent for the execution, delivery and performance of this Agreement by Parent or the consummation by Parent of the transactions contemplated hereby; and (ii) neither the execution, delivery or performance of this Agreement by Parent nor the consummation by Parent of the transactions contemplated hereby nor compliance by Parent with any of the provisions hereof shall (A) require the consent or approval of any other Person pursuant to any agreement, obligation or instrument binding on Parent or its properties or assets, (B) conflict with or violate

any provision of the organizational documents of Parent, (C) result in any breach or violation of, or constitute a default (or an event which, with notice or lapse of time or both, would become a default) under, or give to others any rights of termination, amendment, acceleration or cancellation of, or result in the creation of an Encumbrance on such property or asset of Parent pursuant to, any Contract to which Parent is a party or by which such Parent or any property or asset of Parent is bound or affected, or (D) violate any order, writ, injunction, decree, statute, rule or regulation applicable to Parent or any of Parent’s properties or assets.

(c) Issuance of Parent Shares. Parent has only one class of shares and the Rollover Shareholders, the Management Rollover Shareholders and other shareholders of Parent will receive the same class of the Parent Shares at or around the Contribution Closing. The Parent Shares will be duly authorized, validly issued, fully paid and nonassessable, and free and clear of all Encumbrances, preemptive rights, rights of first refusal, subscription and similar rights (other than those arising under any agreements entered into at the Contribution Closing by all of the Rollover Shareholders) when issued.

(d) Reliance. Parent understands and acknowledges that the Rollover Shareholders are entering into this Agreement in reliance upon other Buyer Group Parties (other than the Rollover Shareholders) entering into other Buyer Group Contracts.

(e) Buyer Group Contracts. Parent has delivered to the Rollover Shareholders a true, correct and complete copy of each of the Buyer Group Contracts, and Parent and its Affiliates will not enter into any Buyer Group Contracts after the date hereof without the prior consent of the Rollover Shareholders; provided, that no consent by the Rollover Shareholders will be required so long as such amendment will not adversely affect the Rollover Shareholders in any material respect.

8. Other Covenants and Agreements.

(a) Each of the parties hereto agrees to use its reasonable best efforts to take, or cause to be taken, all actions and to do, or cause to be done, all things necessary, proper or advisable under applicable Law to (i) convey, transfer to and vest in Parent, and to put Parent in possession of, all of the applicable Rollover Shares in accordance with the terms of this Agreement, and (ii) to consummate and make effective any other transactions contemplated by this Agreement, including providing information and using reasonable best efforts to obtain all necessary or appropriate waivers, consents and approvals, and effecting all necessary registrations and filings.

(b) Each Rollover Shareholder shall, severally and jointly, bear and pay, reimburse, indemnify and hold harmless Parent and any Affiliate thereof (collectively, the “Indemnified Parties”) for, from and against (i) any and all liabilities for withholding Taxes imposed or assessed by the PRC (and/or political subdivisions of the PRC) that the Parent or its Affiliates would have been able to satisfy pursuant to Section 3.06 of the Merger Agreement if the Rollover Shareholders received Merger Consideration under the Merger Agreement in lieu of the Parent Shares received under this Agreement, to the extent actually paid by any of the Indemnified Parties and arising from or attributable to the receipt of Parent Shares by such Rollover Shareholder or its Affiliates pursuant to this Agreement; provided, that such

withholding taxes are imposed upon, incurred by or asserted against such Indemnified Parties within two years after the Contribution Closing (collectively, the “Tax Liabilities”) and (ii) any costs or expenses (including reasonable attorneys’ fees), judgments, fines, losses, claims, interests, damages or liabilities incurred in connection with any claim, action, suit, proceeding or investigation, whether civil, criminal, administrative or investigative, arising out of the Tax Liabilities, provided, that the Indemnified Parties shall bear their own costs related to any governmental filings they are required to make. Each Rollover Shareholder shall take, or cause to be taken, all actions and to do, or cause to be done, all things necessary, proper or advisable to ensure that the Rollover Shareholder has adequate capital resources available to satisfy its indemnification obligations in accordance with this Section 8(b). The parties hereto agree that the Parent’s Affiliates shall be third-party beneficiaries of this Section 8(b).

(c) Each Rollover Shareholder shall determine in its reasonable discretion whether it is required to file a report with the PRC tax authorities pursuant to the PRC State Administration of Taxation’s Circular on Strengthening the Administration of Enterprise Income Tax on Non-resident Enterprises’ Equity Transfer Income or its successor rules (“Circular 698”), shall make all filings it determines to be required and shall provide Parent with copies of any such filings and any documents submitted to the PRC tax authorities with such filings within ten (10) business days after making such filings.

(d) Each of Parent and its Affiliates and the Rollover Shareholders shall promptly provide the other with copies of any notices or other written communications received from the PRC tax authorities asserting that tax is or may be due pursuant to the Tax rules described in Sections 8(b) and (c), requesting information in respect of the exchange of the Rollover Shares for the Parent Shares pursuant to this Agreement or the potential liability of such persons for PRC tax in connection therewith or otherwise relating to such Tax rules as it may apply to such exchange. Each of Parent and its Affiliates and the Rollover Shareholders shall cooperate fully with the other in connection with any investigation or assertion of tax liability based on the Tax rules described in Sections 8(b) and (c), including the retention and, at the other’s reasonable request, provision of records relevant thereto. Parent and its Affiliates (i) shall consult with the Rollover Shareholders before responding to any requests for information in connection with potential tax liability, (ii) shall provide the Rollover Shareholders with drafts of written responses or other written submissions to the PRC tax authorities in connection with such potential tax liability reasonably in advance prior to submission to the PRC tax authorities and the provisions of Section 8(e) shall apply and (iii) shall not settle, compromise or pay any such potential tax liability to the extent that it would result in an indemnification claim under Section 8(b) without the consent of the Rollover Shareholders, such consent not to be unreasonably withheld, conditioned or delayed.

(e) With respect to communications involving solely issues for which indemnification is required under Section 8(b), Parent and its Affiliates shall make any changes to the written responses or other written submissions to the PRC tax authorities as are reasonably and timely requested by the Rollover Shareholders. With respect to communications involving both issues for which indemnification is required under Section 8(b) and other issues that are not subject to indemnification under Section 8(b), Parent and its Affiliates respectively (i) shall consider in good faith any changes to the written responses or other written submissions to the PRC tax authorities as are reasonably and timely requested by the Rollover Shareholders and (ii)

shall use their commercially reasonable best efforts to advocate, and to cause their tax advisors to advocate, that no tax (or less tax) for which indemnification under Section 8(b) would be required should be imposed upon, incurred by or asserted against the Indemnified Parties by any PRC tax authority or otherwise be payable by the Rollover Shareholders to the relevant PRC governmental entity. To the extent legally permissible, prior to communicating with the PRC tax authorities in respect of Taxes for which indemnification would be required under Section 8(b), Parent shall use commercially reasonable best efforts to place the Rollover Shareholders in direct communication with the relevant PRC tax authorities in respect of the Rollover Shareholders’ potential Tax liabilities in order to provide the Rollover Shareholders with the opportunity to timely satisfy such liabilities directly.

(f) Parent has no current plan or intention to reacquire any of the Parent Shares or the shares of Parent stock issued to the Investors pursuant to the Investment. Parent shall not issue its shares to the Investors in a manner or at a time that would reasonably be expected to prevent the transfer of the Rollover Shares to Parent in exchange for the Parent Shares pursuant to this Agreement from qualifying as a tax-free exchange under Section 351 of the United States Internal Revenue Code of 1986, as amended. Immediately following the Contribution Closing, the Investors and the Rollover Shareholders together shall hold stock of Parent (i) possessing at least 80% of the voting power of all classes of Parent stock entitled to vote and (ii) constituting at least 80% of the total number of shares of each nonvoting class of Parent stock.

(g) Notwithstanding Section 1.04(a) of the Investment Agreement, the Rollover Shareholders shall not be obligated to bear any portion of any termination fee or expense reimbursement obligation to the Company that may become payable by Parent to the Company pursuant to Section 9.03 of the Merger Agreement.

(h) Section 1.04(b) of the Investment Agreement is hereby terminated and shall be of no further force or effect and the Rollover Shareholders shall have no right under any circumstances to share in any termination fee or expense reimbursement right from the Company that may become payable to Parent from the Company pursuant to Section 9.03 of the Merger Agreement.

9. Disclosure.

(a) The Rollover Shareholders, on the one hand, and Parent, on the other hand, shall not, and shall cause their respective Affiliates and Representatives not to, make any press release, public announcement or other public communication regarding the subject matter of this Agreement without the prior written consent of the other party, except to the extent that (i) a party may disclose to its Representatives as such party reasonably deems necessary to give effect to or enforce this Agreement but only on a confidential basis; (ii) if required by law or a court of competent jurisdiction, the SEC, the NASDAQ or another regulatory body or international stock exchange having jurisdiction over a party or pursuant to whose rules and regulations such disclosure is required to be made, including any required Schedule 13D filings and in connection therewith, the disclosure of this Agreement, but only as far as practicable and lawful after the form and terms of that disclosure have been notified to the other party and the other party has had a reasonable opportunity to comment on the form and terms of disclosure, in each case, to

the extent reasonably practicable; or (iii) if the information is publicly available other than through a breach of this Agreement by a party or its Representatives.

(b) Each Rollover Shareholder (i) consents to and authorizes the publication and disclosure by Parent or its Affiliates of such Rollover Shareholder’s identity and ownership of the Shares and the existence and terms of this Agreement (including, for the avoidance of doubt, the disclosure of this Agreement) and any other information, in each case, that Parent reasonably determines in its good faith judgment is required to be disclosed by Law in any press release, any other disclosure document in connection with the Merger Agreement and any filings with or notices to any Governmental Authority in connection with the Merger Agreement (or the transactions contemplated thereby), but only as far as practicable and lawful after the form and terms of that disclosure have been notified to the Rollover Shareholders and the Rollover Shareholders have had a reasonable opportunity to comment on the form and terms of disclosure, and (ii) agrees promptly to give to Parent or its Affiliates any information they may reasonably request concerning such Rollover Shareholder for the preparation of any such documents.

10. Termination. This Agreement and the obligations of the Rollover Shareholders hereunder will terminate immediately upon the valid termination of the Merger Agreement in accordance with its terms; provided, that the provisions set forth in Section 8(g), Section 8(h), Section 9, this Section 10 and Section 11 shall survive the termination of this Agreement; provided, further, that the Rollover Shareholders shall continue to have liability for breaches of this Agreement prior to the termination of this Agreement. If for any reason the Merger contemplated by the Merger Agreement fails to occur but the Contribution Closing has already taken place, then Parent shall promptly return the Rollover Shares Documents to the Rollover Shareholders at their respective addresses set forth on Schedule A and take all such actions as are necessary to restore each such Rollover Shareholders to the position it was in with respect to ownership of the Rollover Shares prior to the Contribution Closing.

11. Miscellaneous.

(a) Entire Agreement. This Agreement (together with the Merger Agreement, the Voting Agreement, and the Investment Agreement (as modified hereby)) constitutes the entire agreement, and supersedes all prior written agreements, arrangements, communications and understandings and all prior and contemporaneous oral agreements, arrangements, communications and understandings among the parties with respect to the subject matter hereof and thereof.

(b) Assignment; Successors. Neither this Agreement nor any of the rights, interests or obligations under this Agreement may be assigned or delegated, in whole or in part, by operation of Law or otherwise, by any party without the prior written consent of the other parties, and any such assignment without such prior written consent shall be null and void. Subject to the preceding sentence, this Agreement will be binding upon, inure to the benefit of, and be enforceable by, the parties and their respective successors and permitted assigns.

(c) Amendment; Modification and Waiver. This Agreement may not be amended, modified or supplemented in any manner, whether by course of conduct or otherwise, except by an instrument in writing signed on behalf of each party hereto and otherwise as

expressly set forth herein. No failure or delay of any party in exercising any right or remedy hereunder shall operate as a waiver thereof, nor shall any single or partial exercise of any such right or power, or any abandonment or discontinuance of steps to enforce such right or power, or any course of conduct, preclude any other or further exercise thereof or the exercise of any other right or power. The rights and remedies of the parties hereunder are cumulative and are not exclusive of any rights or remedies which they would otherwise have hereunder. Any agreement on the part of a party to any such waiver shall be valid only if set forth in a written instrument executed and delivered by such party.

(d) Survival of Representations and Warranties. All representations and warranties of the Rollover Shareholders or by or on behalf of Parent in connection with the transactions contemplated by this Agreement contained herein shall survive the execution and delivery of this Agreement, any investigation at any time made by or on behalf of Parent or the Rollover Shareholders, and the issuance of the Parent Shares.

(e) Interpretation. Whenever the words “include”, “includes” or “including” are used in this Agreement, they shall be deemed to be followed by the words “without limitation”. The definitions contained in this Agreement are applicable to the singular as well as the plural forms of such terms and to the masculine as well as to the feminine and neuter genders of such term. When reference is made to an Article or Section, such reference is to an Article or Section of this Agreement unless otherwise indicated. References to sums of money are expressed in lawful currency of the U.S. and “$” refers to U.S. dollars. The descriptive headings contained in this Agreement are included for convenience of reference only and shall not affect in any way the meaning or interpretation of this Agreement. All terms defined in this Agreement shall have the defined meanings when used in any certificate or other document made or delivered pursuant hereto, unless otherwise defined therein. The words “hereof”, “herein” and “hereunder” and words of similar import, when used in this Agreement, refer to this Agreement as a whole and not to any particular provision of this Agreement. For purposes of this Agreement, “beneficially owns”, “beneficial owner” or “beneficial ownership” with respect to any securities means having “beneficial ownership” of such securities (as determined pursuant to Rule 13d-3 under the Exchange Act).

(f) Statutory Provisions. All references to statutes, statutory provisions, enactments, directives or regulations shall include references to any consolidation, reenactment, modification or replacement of the same, any statute, statutory provision, enactment, directive or regulation of which it is a consolidation, re-enactment, modification or replacement and any subordinate legislation in force under any of the same from time to time.

(g) Recitals and Schedules. References to this Agreement include the recitals and schedules which form part of this Agreement for all purposes. References in this Agreement to the parties are references respectively to the parties and their legal personal representatives, successors and permitted assigns.

(h) Notices. All notices, requests, claims, demands and other communications under this Agreement shall be in writing and shall be deemed to have been duly given (i) when delivered in person, (ii) upon confirmation of receipt after transmittal by facsimile (to such number specified below or another number or numbers as such Person may subsequently specify

by proper notice under this Agreement), with a confirmatory copy to be sent by overnight courier, and (iii) on the next Business Day when sent by national overnight courier, in each case to the respective parties and accompanied by a copy sent by email (which copy shall not constitute notice). All notices hereunder shall be delivered to the addresses set forth below or, with respect to the Rollover Shareholders, on Schedule A, or pursuant to such other instructions as may be designated in writing by the party to receive such notice:

(A) If to Parent:

BCP (Singapore) VI Cayman Acquisition Co. Ltd.

c/o The Blackstone Group L.P.

345 Park Avenue

New York, NY 10054, USA

Attention: John G. Finley

Facsimile: +1 646 253 8983

The Blackstone Group (HK) Limited

Two International Finance Centre

Suite 901, 9th Floor, 8 Finance Street

Central, Hong Kong

Attention: Susannah Lindenfield

Facsimile: +852 3656 8601

with a copy (which shall not constitute notice) to:

Ropes & Gray

41st Floor, One Exchange Square

8 Connaught Place

Central, Hong Kong

Attention: James Lidbury and Gary Li

Facsimile: +852 3664 6588

Email: james.lidbury@ropesgray.com and gary.li@ropesgray.com

(B) If to the Rollover Shareholders:

Granite Global Ventures II L.P.

2494 Sand Hill Road, Suite 100

Menlo Park, CA 94025 U.S.A.

Attention: Stephen Hyndman, CFO

Facsimile: +1-650-475-2151

Email: shyndman@ggvc.com

GGV II Entrepreneurs Fund L.P.

2494 Sand Hill Road, Suite 100

Menlo Park, CA 94025 U.S.A.

Attention: Stephen Hyndman, CFO

Facsimile: +1-650-475-2151

Email: shyndman@ggvc.com

(i) Severability. Whenever possible, each provision or portion of any provision of this Agreement shall be interpreted in such manner as to be effective and valid under applicable Law, but if any provision or portion of any provision of this Agreement is held to be invalid, illegal or unenforceable in any respect under any applicable Law or rule in any jurisdiction, such invalidity, illegality or unenforceability shall not affect any other provision or portion of any provision in such jurisdiction, and this Agreement shall be reformed, construed and enforced in such jurisdiction as if such invalid, illegal or unenforceable provision or portion of any provision had never been contained herein.

(j) Remedies; Enforcement. (i) The parties hereto agree that this Agreement shall be enforceable by all available remedies at law or in equity (including specific performance). In the event any breach of this Agreement by any of the Rollover Shareholders (including any failure by the Rollover Shareholder to contribute the Rollover Shares to Parent in accordance with the terms of this Agreement) which has been the primary cause of a failure of any closing condition applicable to Parent, Midco and Merger Sub in the Merger Agreement or a termination right of the Company under the Merger Agreement, the breaching Rollover Shareholders shall, severally and not jointly, pro rata in proportion to the number of Rollover Shares held by such breaching Rollover Shareholder, (A) indemnify and hold harmless Parent, Midco, Merger Sub, the Sponsor, the Guarantors and their Affiliates (the “Parent Parties”) from the aggregate out-of-pocket damages (including all costs and expenses) incurred by any of them in connection therewith, (but excluding the amount of any termination fee paid or payable by Parent to the Company under the Merger Agreement) and, without duplication, all amounts paid or payable under the Guarantee by the Guarantors (but excluding the amount of any termination fee paid or payable by Parent to the Company under the Merger Agreement) and (B) reimburse all out-of pocket expenses incurred by any of the Parent Parties in connection with the transactions contemplated by the Merger Agreement and this Agreement, including the reasonable fees, expenses and disbursements of lawyers, accountants, consultants and other advisors retained by any of them in connection therewith, together with any costs of enforcement incurred by any of them in seeking to enforce such remedy against such breaching Rollover Shareholders; provided, that the foregoing monetary damages will be available to Parent only if Parent has performed in all material respects its obligations under this Agreement and the Merger Agreement, unless a failure to perform was primarily caused by the breach of the Rollover Shareholders under this Agreement. The breaching Rollover Shareholders shall pay or reimburse the Parent Parties within ten (10) Business Days following receipt of a written notice setting forth in reasonable detail the amount of any losses, damages, liabilities or expenses incurred by any of them. The foregoing shall be without prejudice to any rights and remedies otherwise available to a non-breaching party. The parties hereto agree that the Parent Parties (excluding Parent) shall be third-party beneficiaries of this Section 11(j)(i).

(ii) The Rollover Shareholders further acknowledge and agree that monetary damages would not be an adequate remedy in the event that any covenant or agreement of the Rollover Shareholders in this Agreement is not performed in accordance with its terms, and therefore agree that, in addition to and without limiting any other remedy or right available to Parent or its Affiliates, Parent and its Affiliates will have the right to an injunction, temporary restraining order or other equitable relief in any court of competent jurisdiction enjoining any such breach

and enforcing specifically the terms and provisions hereof; provided, that such right of specific performance will be available to Parent only if Parent has performed in all material respects its obligations under this Agreement and the Merger Agreement, unless a failure to perform was primarily caused by the breach of the Rollover Shareholders under this Agreement. The Rollover Shareholders agree not to oppose the granting of such relief in the event a court determines that such a breach has occurred, and to waive any requirement for the securing or posting of any bond in connection with such remedy. All rights, powers, and remedies provided under this Agreement or otherwise available in respect hereof at law or in equity shall be cumulative and not alternative, and the exercise or beginning of the exercise of any thereof by Parent or its Affiliates shall not preclude the simultaneous or later exercise of any other such right, power or remedy by Parent or its Affiliates. Notwithstanding anything contrary in the foregoing, under no circumstances will Parent be entitled to both the monetary damages under Section 11(j)(i) and the right of specific performance under this Section 11(j)(ii).

(k) No Third Party Beneficiaries. Nothing in this Agreement, express or implied, is intended to or shall confer upon any Person other than the parties and their respective successors and permitted assigns any legal or equitable right, benefit or remedy of any nature under or by reason of this Agreement, except as specifically set forth in this Agreement (including Sections 8(c) and 11(j)(i)).

(l) Governing Law; Jurisdiction; Venue. This Agreement shall be governed by, and construed in accordance with, the laws of the State of New York, without giving effect to any choice of law or other conflict of law provision or rule (whether of the State of New York or any other jurisdiction) that would cause the application of the laws of any jurisdiction other than the State of New York. All actions and proceedings arising out of or relating to this Agreement shall be heard and determined exclusively in any New York state or federal court sitting in the Borough of Manhattan of the City of New York. The parties hereto hereby (i) submit to the exclusive jurisdiction of any state or federal court sitting in the Borough of Manhattan of the City of New York for the purpose of any Action arising out of or relating to this Agreement brought by any party hereto, and (ii) irrevocably waive, and agree not to assert by way of motion, defense or otherwise, in any such Action, any claim that it is not subject personally to the jurisdiction of the above-named courts, that its property is exempt or immune from attachment or execution, that the Action is brought in an inconvenient forum, that the venue of the Action is improper, or that this Agreement or the Transactions may not be enforced in or by any of the above-named courts.

(m) Waiver of Jury Trial. Each of the parties hereto hereby irrevocably waives to the fullest extent permitted by applicable Law any right it may have to a trial by jury with respect to any litigation directly or indirectly arising out of, under or in connection with this Agreement or the Transactions. Each of the parties hereto (i) certifies that no Representative of any other party has represented, expressly or otherwise, that such other party would not, in the event of litigation, seek to enforce the foregoing waiver and (ii) acknowledges that it and the other parties hereto have been induced to enter into this Agreement and the Transactions, as applicable, by, among other things, the mutual waivers and certifications in this Section 11(m).

(n) Expenses. Other than otherwise provided for in this Agreement and the Investment Agreement, all costs and expenses incurred in connection with this Agreement and the transactions contemplated hereby shall be paid by the party incurring such expenses.

(o) Counterparts. This Agreement may be executed in two or more counterparts (including by facsimile transmission or pdf), all of which shall be considered one and the same instrument and shall become effective when one or more counterparts have been signed by each of the parties and delivered to the other parties; provided, however, that if any of the Rollover Shareholders fails for any reason to execute, or perform their obligations under, this Agreement, this Agreement shall remain effective as to all parties executing this Agreement.

(p) No Presumption Against Drafting Party. Each of the parties to this Agreement acknowledges that it has been represented by independent counsel in connection with this Agreement and the transactions contemplated by this Agreement. Accordingly, any rule of Law or any legal decision that would require interpretation of any claimed ambiguities in this Agreement against the drafting party has no application and is expressly waived.

[Signature page follows]

IN WITNESS WHEREOF, Parent and the Rollover Shareholders have caused to be executed or executed this Agreement as of the date first written above.

		BCP (SINGAPORE) VI CAYMAN ACQUISITION CO. LTD.

		By:	/s/ Eddy Huang
		Name:	Eddy Huang
		Title:	Director

		GRANITE GLOBAL VENTURES II L.P.


		By:	Granite Global Ventures II L.L.C., its general partner


		By:	/s/ Hany Nada
		Name:	Hany Nada
		Title:	Managing Director

		GGV II ENTREPRENEURS FUND L.P.


		By:	Granite Global Ventures II L.L.C., its general partner


		By:	/s/ Hany Nada
		Name:	Hany Nada
		Title:	Managing Director

Schedule A

Rollover Shareholder Name	Address Facsimile	Rollover Shares	Parent Shares	Other Securities

Granite Global Ventures II L.P.	2494 Sand Hill Road, Suite 100 Menlo Park CA 94025 Fax #: 650-475-2151	3,348,586	3,348,586	0

GGV II Entrepreneurs Fund L.P.	2494 Sand Hill Road, Suite 100 Menlo Park CA 94025 Fax #: 650-475-2151	70,094	70,094	0