SIGNED A CONTRACT

Our Ref : ST/2002/0087 February 20, 2002 Subject : Signed a contract Attention : The President The Stock Exchange of Thailand Sino-Thai Engineering & Construction Public Company Limited (STECON) is pleased to inform SET that the Company signed a contract with Chiyoda (Thailand) Ltd. on February 19, 2002 to expand Olefins Plant at Map Ta Phut Industrial Estate in Rayong Province for Thai Olefins Company Limited. The details of the contract are as follows:- Work : Construction of Civil, Building, Steel Structure, Piping, Painting, Insulation, Scaffolding Work & Temporary Facility Contract Value : Baht 795,000,000.00 Time for completion of works : July 31, 2004 Please be advised and disclose to investors and public. Yours sincerely ( Mr. Teeraphong Wichiranon ) Vice President Business Development Department