**Exhibit** **10.15**




**Lease
      Agreement**






Party
      A
      (hereinafter referred to as the “Group”): Tianjin Tianshi Group Co.
      Ltd.




Party
      B
      (hereinafter referred to as “Biological”); Tianjin Tianshi Biological
      Development Co., Ltd.




Group
      and
      Biological have entered into a Real Property Transfer Agreement (the “Transfer
      Agreement”) dated December
      14 ,
      2007
      pursuant to which Biological is transferring certain buildings (the “Buildings”)
      and land use rights to Group. Pursuant to the Transfer Agreement, Group has
      agreed to allow Biological to continue to use and occupy certain of the
      Buildings, as specified on Exhibit A (collectively, the Leased
      Buildings”).




|1. | Group
              provides Biological the right to lease, use and occupy the Leased
              Buildings from the date of this Agreement until the earlier of (i)
              the
              date Biological acquires the use of and occupies alternate facilities,
              or
              (ii) the date the Land Use Rights for the Leased Buildings
              expire.
|-- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|2. | Biological
              shall have the right to lease, use and occupy the Leased Buildings
              without
              payment of any management or lease fee to Group; provided however,
              that
              Biological shall pay Group for all utility charges and maintenance
              costs
              related to the Leased Buildings (the “Charges”). Such Charges shall be
              invoiced by Group to Biological on a monthly or quarterly basis and
              shall
              be paid by bank transfer within 30 days of receipt of the
              invoice.
|-- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|3. | Group’s
              responsibilities:
|-- | ---------------------------------------



|a. | Group
              shall insure that all of the Leased Buildings run properly and provide
              maintenance for the Leased Buildings on a regular basis. Group shall
              compensate Biological’s losses caused from improper maintenance or
              management of the Leased Buildings by
              Group.
|-- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|b. | Group
              shall pay insurance fees for the Leased Buildings and is responsible
              for
              compensating Biological’s losses caused from the improper behavior of the
              management staff and other users of
              Group.
|-- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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|c. | Group
              is obliged to satisfy Biological’s reasonable and legal requirements
              during the lease period.
|-- | -------------------------------------------------------------------------------------------------------------------------------



|d. | Biological
              shall timely notify Group to take effective measures for any damages
              or
              malfunctions existing or occurring on the Leased Buildings that may
              affect
              the safe and normal use of the Leased
              Buildings.
|-- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|4. | Biological’s
              responsibilities:
|-- | --------------------------------------------



|a. | Biological
              shall comply with the law in the People’s Republic of China during the
              lease period.
|-- | ---------------------------------------------------------------------------------------------------------------------------



|b. | Biological
              shall pay the Charges to Group as stipulated in Section 2
              above.
|-- | -------------------------------------------------------------------------------------------------------



|c. | Biological
              shall properly use and take good care of the Leased Buildings and avoid
              any abnormal damages. Biological shall be responsible for the timely
              maintenance or compensation for any malfunction on the premise and
              its
              internal facilities caused by its misuse or inappropriate
              use.
|-- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|d. | Biological
              shall keep the Leased Buildings in a good condition. Biological and
              Group
              shall confirm in writing the condition of the Buildings on the date
              of
              this Lease Agreement. Upon termination of this Agreement, Biological
              shall
              be responsible to pay to Group the cost of returning the Leased Buildings
              to their original state, excluding normal wear and tear or original
              defect.
|-- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|e. | Biological
              shall provide Group with 60 days prior written notice of the date on
              which
              it will vacate the Leased Buildings (the “Termination Date”). Party A
              shall prepare an inventory of all its assets in the Buildings and arrange
              to remove all of its assets from the Buildings before the Termination
              Date.
|-- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|5. | Any
              matters not covered in this agreement shall be further negotiated between
              the two parties in good faith and a supplemental agreement shall be
              equally valid.
|-- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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|6. | Both
              parties shall solve any disputes arising from the execution and
              performance of this agreement through good faith negotiation. In the
              case
              that an agreement cannot be reached, according to the laws of the People’s
              Republic of China, either party may submit the dispute to the court
              which
              has jurisdiction over the Leased
              Buildings.
|-- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|7. | This
              Agreement has four original, two in Mandarin and two in English. Each
              party shall keep one of each language and the Mandarin version shall
              govern in case of inconsistency.
|-- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|8. | This
              Agreement shall be effective from the date on which both parties have
              signed on it.
|-- | --------------------------------------------------------------------------------------------------------------------





Tianjin
      Tianshi Group Co., Ltd




[COMPANY
      SEAL AFFIXED]




Authorized
      representative: /s/ Jinyuan Li


Address: No.
      6
      Yuanquan Road, Wuqing Development Area, Tianjin New-tech Industry
      Park


Date:
      December 14, 2007






Tianjin
      Tianshi Biological Development Co. Ltd.




[COMPANY
      SEAL AFFIXED]




Authorized
      representative: /s/ Yiqun Wu


Address: No.
      6
      Yuanquan Road, Wuqing Development Area, Tianjin New-tech Industry
      Park


Date:
      December 14, 2007




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