SET Announcements

(Translation) Ref: CK-05-0000-PO-L-0075 14 March 2005 Subject Signing a Construction Contract Attention President The Stock Exchange of Thailand Since CH.Karnchang Public Company Limited has signed a Construction Contract of Water Supply Pipeline and related work with The Metropolitan Waterworks Authority, getting along with The Bangpli-Suksawad Expressway Project of Expressway & Rapid Transit Authority of Thailand. This transaction is a normal and in ordinary course of our business. The detail of the contract is as follows: Contract Date: 10 March 2005 The Value of Contract: Baht 154,100,000.- (One Hundred Fifty Four Million One Hundred Thousand Only) not included VAT Period: 22 months (approximately) For your information. Sincerely yours, -Signature- (Mr. Anukool Tuntimas) Executive Vice President Human Resource and General Administration