Purchase of shares in Inter IMC Pte Ltd.

ST. 010/2009/0008 13th March 2009 Subject: Purchase of shares in Inter IMC Pte Ltd. To: Directors and Manager of the Stock Exchange of Thailand Attachment: Disclosure of Information Concerning the Related-Parties Transaction Whereas the Board of Directors of Sino-Thai Engineering & Construction Public Company Limited (the "Company") convened the Board of Directors Meeting No. 1/2009 at 10.35 - 12.30 hours on March 12th, 2009. The Company would like to report that the said Board of Directors Meeting has resolved to approve the purchase of 23,000 ordinary shares in Inter IMC Pte Ltd. from STP&I Public Company Limited, an entity connected to the Company. The purchase price is fixed at the book value of Inter IMC Pte Ltd. as of December 31, 2008 amounting to Baht 13,650,058. The Company entered into the Share Sale and Purchase Agreement with STP&I Public Company Limited on March 13th, 2009. As a result, the Company will hold 46% of total shares in Inter IMC Pte Ltd. and Inter IMC Pte Ltd. will become the Company's affiliate. The said transaction falls under the notification of the Stock Exchange of Thailand concerning the Acquisition and Disposition of Assets and Connected Transactions. Upon calculation of the said transaction value, such transaction requires approval from a Board of Directors Meeting and disclosure of the decision to enter into the transaction to the Stock Exchange of Thailand, the details of which as per the disclosure of information are attached. The Company provides this information for your acknowledgment and dissemination to the public and other investors. Sincerely yours, Sino-Thai Engineering & Construction Public Company Limited (Mr. Vallop Rungkijvorasathien) President