CONSTRUCTION CONTRACT

                                                                   Exhibit 10.31

                             Construction Contract

In accordance  with the principle of openness,  impartiality  and fairness,  the
public bidding meeting on the Triamine Project - Refinery  Workshop and Relevant
Structures and Earth Hardening Project of Shandong  Bangsheng Chemical Co., Ltd.
was a full success.  Through friendly  negotiation,  Shandong Bangsheng Chemical
Co.,  Ltd. and Chen  Houzhi,  the  successful  bidder,  agree to establish  this
contract. The parties hereby agree as follows:

Party A:  Shandong  Bangsheng  Chemical Co.,  Ltd.  (hereinafter  referred to as
"Party A")
Party B: Chen Houzhi (hereinafter referred to as "Party B")

I.    Project Name: Triamine Refinery Workshop and Relevant Structures and Earth
      Hardening Project

II.   Type of Contract: Contract for labor and materials

III.  Projected Engineering Work Load:
      Construction  Cost:  Construction  payment  shall be done in line with the
      State's current construction flat rate and other related documents.
      Projected  construction  cost of  refinery  workshop:  RMB  455,000  (four
      hundred and fifty-five thousand) yuan;
      Projected   construction  cost  of  related  structures:   RMB10,000  (ten
      thousand) yuan;
      Projected  construction  cost  of  Earth  Hardening  Project:  RMB  35,000
      (thirty-five thousand) yuan.
      Total: RMB 500,000 (five hundred thousand) yuan.     
      The final payment shall be based on the actual volume of works.



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IV.   Construction  Period: At the request of Party A, the construction shall be
      completed within 30 days after the signing of this contract

V.    Mode of Payment:
      30(C)++ of the total  construction cost shall be paid within 10 days after
      the equipment and staff of the unit in charge of  construction  arrive the
      construction   site  and  come  into  operation;   30(C)++  of  the  total
      construction cost shall be paid after the main body of the construction is
      completed;  30(C)++ of the total construction cost shall be paid after the
      construction has been checked and accepted; the remaining 10(C)++ shall be
      paid off at a single  payment  within  one year  after the  completion  of
      construction, henceforward this contract shall become self-annulled.

VI.   Quality Requirement and Acceptance Criterion: