CLARIFICATION ON THE SELLING OF INTER IMC PTE LTD.

Our Ref : ST/2001/0344 September 19, 2001 Subject : Clarification on the selling of Inter IMC Pte Limited Attention : The President The Stock Exchange of Thailand Whereas Sino-Thai Engineering & Construction Public Company Limited "STECON" has sold its affiliated company, Inter IMC Pte Limited, a construction company registered in Singapore, focusing on mechanical works which STECON hold 15,000 shares (30% of Inter IMC shares). The Inter IMC are sold at 10.25 Singapore Dollar per share for 15,000 shares at the total cost of Singapore Dollar 153,750 on September 18, 2001 to Best Quality Skills Company Limited (BQS) which does not have any related business with the Company in accordance with the SET regulation. The purpose of the selling is to utilize the money as working capital of the Company. Please be advised and disclose to investors and public. Yours sincerely ( Mr. Woraphant Chonthong ) Senior Vice President Finance and Account