THE RESIGNATION OF DIRECTOR

Our Ref: ST/2002/0186 April 17, 2002 Subject : The Resignation of Director Attention : The President The Stock Exchange of Thailand As Mr. Chumpol Phornprapha, Sino-Thai Engineering & Construction Public Company Limited'director, has resigned from his position effective on April 12, 2002.In this regard, we are processing the registration of the change in director at Commercial Registration Department, Ministry of Commerce. Yours sincerely, (Mr. Anutin Charnvirakul) President