15 December 2004

Report on Signing MOU of Kaeng Koi 2 Project

ST 010/2004/0077 December 14th, 2004 Subject: Report on signing MOU of Kaeng Koi 2, Combined Cycle Power Plant 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 signed MOU of Kaeng Koi 2, Combined Cycle Power Plant project with total contract value of 2,361,549,944.00 Baht(VAT Excluded). The construction period is 750 days, and the construction will be commenced on December 15th, 2004 and finished at January 15th, 2007. The EPC Contractor is Alstom Power (Thailand) Ltd. and the owner of the project is Gulf Power Generation Co., Ltd. It is therefore informed for your acknowledgement and dissemination to the public and other investors. Yours sincerely Vallop Rungkijvorasathien President