Director's Resignation

ST.010/2008/0004 February 5th, 2008 Subject: Director's Resignation Attention: The President The Stock Exchange of Thailand In compliance with the regulations of The Stock Exchange of Thailand, Sino-Thai Engineering and Construction Public Company Limited would like to report that Mr. Chavarat Charnvirakul - Director and Chairman of the Advisory Board, has resigned from the position of director of the company and Chairman of the Advisory Board of the company, effective from January 31st, 2008. Please be advised accordingly. Sincerely Yours, Mr. Woraphant Chontong SEVP. Financial and Administration Division