SET Announcements

= Translation = Ref: CK-06-0000-PO-L-0421 December 1, 2006 Subject Signing the Construction Contract Attention President The Stock Exchange of Thailand Reference is made that CH. Karnchang Public Company Limited has been granted for the Construction Contract with Energy Complex Company Limited as to perform the works for the Construction of Buildings B, C, D, E and external works of Energy Complex Centre Project. As such agreement is a normal business in conformity with the ordinary business conditions whereby the Company had ever entered into an agreement with the other companies as its details are the followings : Signing Date December 1, 2006 All cost of agreement Baht 2,736,975,900 (VAT included) (Two Thousand Seven Hundred Thirty-Six Million Nine Hundred Seventy-Five Thousand Nine Hundred Baht only) Completion period approximately 915 days For your information. Sincerely yours, = Signature = (Mr. Anukool Tuntimas) Executive Vice President Human Resource and General Administration