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:
      1.     Quality Grade Standard: superior  
      2.     Party A provides   construction   site featured "three put through one
            level",   and a construction map. Party A is also responsible for the
            joint checkup of the blueprint before star