June 19,2007 Subject : Signed Sales Contracts To : President of the Stock Exchange of Thailand Tirathai Public Company limited would like to inform that the company have been signed the sales contract with the Metropolitan Electricity Authority (MEA) according to the contract No. MPO-8975-AGB Date June 1,2007 total amount 277,522,000 Baht (Two hundred seventy seven million and five hundred twenty two thousand Baht only) Delivery Date within November 1,2007 by 3 partial shipments Please be informed accordingly. Your Faithfully, (Mr.Upakrom Thaweephoke) Deputy Managing Director (Finance and Marketing)