| (1) | Party      A is a limited liability company duly incorporated under the laws of China      which has the expertise in the business of polypeptide-related health      product development, sales and marketing, related technical consultation,      etc. |
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| (2) | Party      B is a limited liability company duly incorporated under the laws of China      which has the expertise in the business of polypeptide-related health      product development, related real estate development, related technical      consultation, etc (the “Business”). |
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| (2) | The      Company is a limited liability company duly incorporated under the laws of      China which has the expertise in the business of polypeptide-related      health product development, related real estate development, related      technical consultation, etc. |
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| (3) | Party      C is the sole shareholder of PartyB. |
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| (4) | A      series of agreements such as the Exclusive Business Cooperation Agreement      (the “Cooperation Agreement”) and Equity Pledge Agreement (the “Equity      Pledge Agreement”) have been entered into by the Parties on September28,      2010; |
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| (5) | The      Parties are entering into this Exclusive Option Agreement in conjunction      with the Pledge Agreement, Cooperation Agreement and related      agreements. |
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| 1. | Purchase      and Sale of Equity Interest |
|----|-------------------------------------------|

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|   | 1.1 | Grant      of Rights. Party C (hereafter the “Transferor”) hereby irrevocably grants      to Party A or its designated representative (the “Designated Persons”) an      exclusive option to purchase, to the extent permitted under PRC Law,      according to the steps determined by Party A, at the price specified in      Section l.3 of this Agreement, at any time from the Transferor a portion      or all of the equity interests held, by Transferor in Party B (the      “Option”). No Option shall be granted to any third party other than Party      A and/or the Designated Persons. Party B hereby agrees to the granting of      the Option by Party C to Party A and/or the Designated Persons. The      “person” set forth in this clause and this Agreement means an individual      person, corporation, joint venture, partnership, enterprise, trust or a      non-corporation organization. |
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|   | 1.2 | Exercise      of Rights.  According to the stipulations of the PRC laws and      regulations, Party A and/or the Designated Persons may exercise Option by      issuing a written notice (the “Notice”) to the Transferor and specifying      the equity interest purchased from Transferor (the “Purchased Equity      Interest”) and the manner ofpurchase. |
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|   | 1.3 | Purchase      Price. |
|--------|-----|----------------------|

|   | 1.3.1 | For      Party A to exercise the Option, the purchase price of the Purchased Equity      Interest (“Purchase Price”) shall be Renminbi One Thousand (RMB1,000),      unless the applicable PRC laws and regulations require appraisal of the      equity interests or stipulate other restrictions on the purchase price of      equity interests. |
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|   | 1.3.2 | If      the applicable PRC laws require appraisal of the equity interests or      stipulates other restrictions on the purchase price of the Equity Interest      at the time that Party A exercises the Option, the Parties agree that the      Purchase Price shall be set at the lowest price permissible under the      applicable laws. |
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|   | 1.4 | Transfer      of the Purchased Equity Interest. Up on each exercise of the Option rights      under this Agreement: |
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|   | 1.4.1 | The      Transferor shall ask Party C to convene a shareholder/owner’s meeting.      During the meeting, the resolutions shall be proposed, approving the      transfer of the appropriate Equity Interest to Party A and/or the      Designated Persons; |
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|   | 1.4.2 | The      Transferor shall, upon the terms and conditions of this Agreement and the      Notice related to the Purchased Equity Interest, enter into Equity      Interest purchase agreement in a form reasonably acceptable to Party A,      with Party A and/or the Designated Persons (as  applicable); |
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|   | 1.4.3 | The      related parties shall execute all other requisite contracts, agreements or      documents, obtain all requisite approval and consent of the government,      conduct all necessary actions, without any security interest, transfer the      valid ownership of the Purchased Equity Interest to Party A and/or the      Designated Persons, and cause Party A and/or the Designated Persons to be      the registered owner of the purchased Equity Interest. In this clause and      this Agreement, “Security Interest” means any mortgage, pledge, the right      or interest of the third party, any purchase right of equity interest,      right of acquisition, right of first refusal, right of set-off, ownership      detainment or other security arrangements, however, it does not include      any security interest created under the Equity Pledge      Agreement. |
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|   | 1.5 | Payment.      The payment of the Purchase Price shall be determined by the consultation      of Party A and/or the Designated Persons with the Transferor according to      the applicable laws at the time of exercise of the  Option. |
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| 2. | Promises      Relating Equity Interest. |
|----|-----------------------------------------|

|   | 2.1 | Promises      Related to Party B. Party B, Party C hereby  promise: |
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|   | 2.1.1 | Without      prior written consent by Party A, not, in any form, to supplement, change      or renew the Articles of Association of Party B, to increase or decrease      registered capital of the corporation, or to change the structure of the      registered capital in any otherforms; |
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|   | 2.1.2 | According      to customary fiduciary standards applicable to managers with respect to      corporations and their shareholders/owners, to maintain the existence of      the corporation, prudently and effectively operate the      business; |
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|   | 2.1.3  | Without      prior written consent by Party A, not, upon the execution of this      Agreement, to sell, transfer, mortgage or dispose, in any other form, any      asset, legitimate or beneficial interest of business or income of Party B,      or encumber or approve any encumbrance or imposition of any security      interest on Party A’s assets; |
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|   | 2.1.4  | Without      prior written notice by Party A, not issue or provide any guarantee or      permit the existence of any debt, other than (i) the debt arising from      normal or daily business but not from borrowing; and (ii) the debt      disclosed to Party A and obtained the written consent from Party      A; |
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|   | 2.1.5  | To      normally operate all business to maintain the asset value of Party B,      without taking any action or failing to take any action that would result      in a material adverse effect on the business or asset value of Party      B; |
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|   | 2.1.6 | Without      prior written consent by Party A, not to enter into any material agreement      that exceeds USD500,000, other than agreements in the ordinary course of      business; |
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|   | 2.1.7 | Without      prior written consent by Party A, not to provide loan or credit loan to      any others; |
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|   | 2.1.8 | Upon the request of Party A, to provide all      materials of operation and finance relevant to Party B; |
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|   | 2.1.9  | Purchases      and holds the insurance from the insurance company accepted by Party A,      the insurance amount and category shall be the same with those held by the      companies in the same industry or field, operating the similar business      and owning the similar properties and assets as Party  B; |
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|   | 2.1.10 | Without      prior written consent by Party A, not to merge or associate with any      person, or acquire or invest in anyperson: |
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|   | 2.1.11 | To notify Party A of the occurrence or the      potential occurrence of the litigation, arbitration or administrative      procedure related to the assets, business and income of Party B; |
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|   | 2.1.12 | In      order to keep the ownership of Party B to all its assets, to execute all      requisite or appropriate documents, take all requisite or appropriate      actions, and pursue all appropriate claims, or make requisite or      appropriate pleas for allclaims; |
|--------|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.1.13 | Without      prior written notice by Party A, not to assign equity interests to      shareholders/owners in any form; however, Party B shall distribute all or      part of its distributable profits to their own shareholders/owners upon      request by Party A; |
|--------|--------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.1.14 | According      to the request of Party A, to appoint any person designated by Party A to      be the directors of Party B. |
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|   | 2.2 | Promises      Related to Transferor. Party C herebypromise: |
|--------|-----|-------------------------------------------------------------|

|   | 2.2.1 | Without      prior written consent by Party A, not, upon the execution of this      Agreement, to sell, transfer, mortgage or dispose in any other form any      legitimate or beneficial interest of equity interest, or to approve any      other security interest set on it, with the exception of the pledge set on      the equity interest of the Transferor subject to Equity Pledge      Agreement; |
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|   | 2.2.2 | Without      the prior written notice by Party A, not to decide or support or execute      any shareholder resolution at any shareholder meeting of Party B that      approves any sale, transfer, mortgage or dispose of any legitimate or      beneficial interest of equity interest, or allows any other security      interest set on it, other than the pledge on the equity interests of      Transferor pursuant to Equity PledgeAgreement; |
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|   | 2.2.3 | Without      prior written notice by Party A, any Party shall not agree or support or      execute any shareholders/owners resolution at any shareholder meeting of      Party B that approves Party B’s merger or association with any person,      acquisition of any person or investment in any  person; |
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|   | 2.2.4 | To      notify Party A the occurrence or the potential occurrence of the      litigation, arbitration or administrative procedure related to the equity      interest owned by them; |
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|   | 2.2.5 | To      cause the Board of Directors of Party B to approve the transfer of the      Purchased Equity Interest subject to this  Agreement; |
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|   | 2.2.6 | In      order to keep its ownership of the equity interest, to execute all      requisite or appropriate documents, conduct all requisite or appropriate      actions, and make all requisite or appropriate claims, or make requisite      or appropriate defend against fall claims of  compensation; |
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|   | 2.2.7 | Upon      the request of Party A, to appoint any person designated by Party A to be      the directors of Party B; |
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|   | 2.2.8 | Upon      the request of Party A at any time, to transfer its Equity Interest      immediately to the representative designated by Party A unconditionally at      any time and abandon its prior right of first refusal of such equity      interest transferring to another available  shareholder; |
|--------|-------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.2.9 | To      prudently comply with the provisions of this Agreement and other      Agreements entered into collectively or respectively by the Transferor,      Party B and Party A and perform all obligations under these Agreements,      without taking any action or any nonfeasance that sufficiently affects the      validity and enforceability of theseAgreements; |
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| 3. | Representations      and Warranties.  As of the execution date of this Agreement and      every transferring date, Party B, Party C hereby represent and warrant      collectively and respectively to Party A as  follows: |
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|   | 3.1 | It      has the power and ability to enter into and deliver this Agreement, and      any equity interest transferring Agreement (“Transferring Agreement”,      respectively) having it as a party, for every single transfer of the      Purchased Equity Interest according to this Agreement, and to perform its      obligations under this Agreement and any Transferring Agreement. Upon      execution, this Agreement and the Transferring Agreements having it as a      party will constitute a legal, valid and binding obligation of it      enforceable against it in accordance with its  terms; |
|--------|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 3.2 | The      execution, delivery of this Agreement and any Transferring Agreement and      performance of the obligations under this Agreement and any Transferring      Agreement will not: (i) cause to violate any relevant laws and regulations      of PRC; (ii) constitute a conflict with its Articles of Association or      other organizational documents; (iii) cause to breach any Agreement or      instruments to which it is a party or having binding obligation on it, or      constitute the breach under any Agreement or instruments to which it is a      party or having binding obligation on it; (iv) cause to violate relevant      authorization of any consent or approval to it and/or any continuing valid      condition; or (v) cause any consent or approval authorized to it to be      suspended, removed, or into which other requests be  added; |
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|   | 3.3 | The      shares of Party B are transferable, and Party B has not permitted or      caused any security interest to be imposed upon the shares of Party      B. |
|--------|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 3.4 | Party      B does not have any unpaid debt, other than (i) debt arising from its      normal business; and (ii) debt disclosed to Party A and obtained by      written consent of Party A; |
|--------|-----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 3.5 | Party      B has complied with all PRC laws and regulations applicable to the      acquisition of assets and securities in connection with this      Agreement; |
|--------|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 3.6 | No      litigation, arbitration or administrative procedure relevant to the Equity      Interests and assets of Party B or Party B itself is in process or to be      settled and the Parties have no knowledge of any pending or threatened      claim; |
|--------|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 3.7 | The      Transferor bears the fair and salable ownership of its Equity Interest      free of encumbrances of any kind, other than the security interest      pursuant to the Equity PledgeAgreement. |
|--------|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 4. | Assignment      of Agreement |
|----|------------------------------|

|   | 4.1 | Party      B and Party C shall not transfer their rights and obligations under this      Agreement to any third party without the prior written consent of the      Party A. |
|--------|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 4.2 | Party      B and Party C hereby agrees that Party A shall be able to transfer all of      its rights and obligation under this Agreement to any third party with its      needs, and such transfer shall only be subject to a written notice sent to      Party B, Party C by Party A, and no any further consent from Party B and      Party C will be required. |
|--------|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 5. | Effective      Date |
|----|---------------------|

|   | 5.1 | This      Agreement shall take effect on the date of execution of this Agreement.      The terms of this Agreement are 10 years. This agreement may be      extended with Party A's written confirmation prior to the expiration      date. |
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| 6. | Governing      Law and Jurisdiction |
|----|-------------------------------------|

|   | 6.1 | This      Agreement shall be governed by, and construed in accordance with, the laws      of the PRC. |
|--------|-----|-------------------------------------------------------------------------------------------------------|

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|  | 6.2 | Any      dispute arising from, out of or in connection with this Agreement shall be      settled through friendly consultations between the Parties. In the event      the Parties fail to reach an agreement on the dispute within 30 days after      either Party's request to the other Parties for resolution of the dispute      through negotiations, either Party may submit the relevant dispute to the      local competent arbitration committee for arbitration, in accordance with      its Arbitration Rules. The arbitration shall be conducted in Guangzhou,      and the language used in arbitration shall be Chinese. The arbitration      award shall be final and binding on allParties. |
|--|-----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 7. | Taxes      and Expenses. Each Party shall, according to the PRC laws, bear any and      all registering taxes, costs and expenses for equity transfer arising from      the preparation and execution of this Agreement and all Transferring      Agreements, and the completion of the transactions under this Agreement      and all Transferring Agreements. |
|----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 8. | Notices.      Notices or other communications required to be given by any party pursuant      to this Agreement shall be written in English and Chinese and delivered      personally or sent by registered mail or postage prepaid mail or by a      recognized courier service or by facsimile transmission to the address of      relevant each party or both parties set forth below or other address of      the party or of the other addressees specified by such party from time to      time. The date when the notice is deemed to be duly served shall be      determined as the follows: (a) a notice delivered personally is deemed      duly served upon the delivery; (b)a notice sent by mail is deemed duly      served the tenth(10th)day after the date when the air registered mail with      postage prepaid has been sent out (as is shown on the postmark),or      the fourth(4th)day after the delivery date to the internationally      recognized courier service agency; and(c)a notice sent by facsimile      transmission is deemed duly served upon the receipt time as is shown on      the transmission confirmation of relevant  documents. |
|----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 9. | Confidentiality.  The      Parties acknowledge and confirm any oral or written materials exchanged by      the Parties in connection with this Agreement are confidential. The      Parties shall maintain the secrecy and confidentiality of all such      materials. Without the written approval by the other Parties, any Party      shall not disclose to any third party any relevant materials, but the      following circumstances shall beexcluded: |
|----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | a. | The      materials that is known or may be known by the general public (but not      include the materials disclosed by each party receiving the      materials); |
|--------|----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | b. | The      materials required to be disclosed subject to the applicable laws or the      rules or provisions of stock exchange;or |
|--------|----|---------------------------------------------------------------------------------------------------------------------------------|

|   | c. | The      materials disclosed by each Party to its legal or financial consultant      relating the transaction of this Agreement, and this legal or financial      consultant shall comply with the confidentiality set forth in this      Section. The disclosure of the confidential materials by staff or employed      institution of any Party shall be deemed as the disclosure of such      materials by such Party, and such Party shall bear the liabilities for      breaching the contract. This clause shall survive whatever this Agreement      is invalid, amended, revoked, terminated or unable to implement by any      reason. |
|--------|----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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| 10. | Further      Warranties.  The Parties agree to promptly execute documents      reasonably required to perform the provisions and the aim of this      Agreement or documents beneficial to it, and to take actions reasonably      required to perform the provisions and the aim of this Agreement or      actions beneficial to it. |
|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 11. | Miscellaneous. |
|-----|----------------|

|   | 11.1 | Amendment,      Modification and Supplement.  Any amendment and supplement to      this Agreement shall only be effective is made by the Parties in      writing. |
|--------|------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 11.2 | Entire      Agreement. The Parties acknowledge that this Agreement constitutes the      entire agreement of the Parties with respect to the subject matters      therein and supersede and replace all prior or contemporaneous agreements      and understandings in verb or/and inwriting. |
|--------|------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 11.3 | Severability.      If any provision of this Agreement is judged as invalid or non-enforceable      according to relevant Laws, the provision shall be deemed invalid only      within the applicable laws and regulations of the PRC, and the validity,      legality and enforceability of the other provisions hereof shall not be      affected or impaired in any way. The Parties shall, through fairly      consultation, replace those invalid, illegal or non-enforceable provisions      with valid provisions that may bring the similar economic effects with the      effects caused by those invalid, illegal or non-enforceable      provisions. |
|--------|------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 11.4 | Headings.      The headings contained in this Agreement are for the convenience of      reference only and shall not affect the interpretation, explanation or in      any other way the meaning of the provisions of this    Agreement. |
|--------|------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 11.5 | Language      and Copies.  This Agreement has been executed in English and      Chinese in three (3) duplicate originals; each Party holds one (1)      original and each duplicate original shall have the same legal      effect. |
|--------|------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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|   |   |   |
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|   | By:    |   |

|   |   |   |
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|   | By:    |   |

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