Signing contract

ST. 010/2009/0006 February 6th, 2009 Subject: Signing contract Attention: The President The Stock Exchange of Thailand Sino-Thai Engineering & Construction Public Company Limited is pleased to inform the SET that the company has signed a new contract. The details of the project are as follows: Project name: S1600 General Mechanical Work For Specialty Elastomer Trains III (Contract no.834/REV.0 signed on February 20th, 2009) Project owner: Siam Synthetic Latex Company Limited Contract value: THB 544,844,000.00 (Include VAT) Scope of work: Machinery Installation and Mechanical Works Construction period:20 February 2009 - 3 September 2010 It is therefore informed for your acknowledgement and dissemination to the public and other investors. Yours sincerely, Mr. Woraphant Chontong SEVP. Financial and Administration Division Company Secretary Office Telephone: 0 2610 4900 ext. 212, 305, 274 Facsimile : 0 2259 4427