SET Announcements

Ref: CK-04-0000-PO-L-0170 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 Building of The Stock Exchange of Thailand, The Stock Exchange of Thailand North Park Project at Vibhavadi Rangsit Road, Laksi District, Bangkok with The Stock Exchange of Thailand. This transaction is a normal and in ordinary course of our business. The detail of the contract is as follows: Contract Date: 26 May 2004 The Value of Contract: Baht 323,000,000 (Three Hundred Twenty Three Million Baht) excluding VAT Period: 11 Months approximately For your information. Sincerely yours, (Mr. Anukool Tuntimas) Executive Vice President Human Resource and General Administration