SET Announcements

Ref: CK-04-0000-PO-L-0172 7 June 2004 Subject Signing a Construction Contract Attention President The Stock Exchange of Thailand Since CH.Karnchang Public Company Limited has sign a Construction Contract for THE BANG-PLI - SUKSAWAD (BANG-PLI - BANG KHUNTHIAN) EXPRESSWAY with 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: 4 June 2004 The Value of Contract: Baht 15,584,619,000 (Fifteen Thousand Five Hundred Eighty four Million Six Hundred Nineteen Thousand Baht) including VAT Period: 30 Months For your information. Sincerely yours, (Mr. Anukool Tuntimas) Executive Vice President Human Resource and General Administration