Buying ordinary shares of Matter Supply Co., Ltd.

ST/010/2009/0002 January 8th, 2009 Re: Report on Resolutions adopted at the Executive Board of Meeting No.2/2009 To: The President The Stock Exchange of Thailand Attachment: Report on buying ordinary shares of Matter Supply Company Limited Whereas, the Executive Board of Sino-Thai Engineering & Construction Public Company Limited convened the Executive Board Meeting No. 2/2009 on January 7th, 2009. The Company would like to report the Executive Board resolutions on buying ordinary shares of Matter Supply Company Limited from the existing shareholders. This transaction is not a connected transaction; therefore, it needs not to report or makes a report according to the Disclosure of Information and Other Acts of Listed Companies Concerning the Connected Transaction. Please kindly find more details in the attachment herewith. It is therefore, informed for your acknowledgement and dissemination to the public and other investors. Yours sincerely, Mr. Woraphant Chontong SEVP. Finance and Accounting Division Company Secretary Office Telephone: 0 2610 4900 ext. 212, 305, 274 Facsimile : 0 2259 4427