Signing Contract of Songkhla Combined Cycle PP. Block 1

ST. 010/2006/0003 January 4th, 2006 Subject: Contract Signing of the Construction of Songkhla Combined Cycle Power Plant Block 1 Project 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 new contract which has details as follow: Project name : The Construction of Songkhla Combined Cycle Power Plant Block 1 Project of EGAT Public Company Limited Project owner : Marubeni Corporation Contract value: THB 1,883,414,000 (Include VAT) Scope of work: civil and erection work for Songkhla Combined Cycle Power Plant Block 1 project Construction period : October 2005 - December 2007 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