(Translation) Subject : Signed Sales Contracts - 2nd quarter To : President of the Stock Exchange of Thailand Tirathai Public Company limited would like to inform that the Company signed 3 sales contracts, with Metropolitan Electricity Authority, Power Company No.1 (Vietnam) and Power Company No.2 (Vietnam), in the 2nd quarter of 2006. Details of them can be summarized as followed, 1. Sales contract with Metropolitan Electricity Authority to supply three items of electrical transformers with the total amount of 125,296,855 Baht (Excl.VAT) - Electrical Transformers 150 kVA 3 phase 24 kV,200 sets Amount : 102,749,000 Baht (Excl.VAT) - Electrical Transformers 50 kVA 1 phase 24 kV,73 sets Amount : 19,551,225 Baht (Excl.VAT) - Electrical Transformers 112.5 kVA 3 phase 24 kV,7 sets Amount : 2,996,630 Baht (Excl.VAT) Signing Date : June 5, 2006 Delivery time : Within October 3,2006,with three partial shipments 2. Sales contract with Power Company No.2 (Vietnam) to supply two items of electrical transformers with the total amount of 2,169,500 USD. (CIP Project site, incl.VAT) - Electrical Transformers 30/40 MVA 115/23 kV, 4 Units Amount : 1,819,275 USD. (CIP Project site, incl.VAT) - Electrical Transformers 20/25 MVA 115/23 kV, 1 Unit Amount : 350,225 USD. (CIP Project site, incl.VAT) Signing Date : May 12, 2006 Delivery time : Within October 12,2006 3. Sales contract with Power Company No.1 (Vietnam) to supply one item of electrical transformer. - Electrical Transformers 30/40 MVA 115/38.5/23(11) kV, 1 Unit Amount : 532,000 USD. (CIF) Signing Date : June 13, 2006 Delivery time : Within November 13,2006 Please be informed accordingly. Your Faithfully, (Mr. Upakrom Thaweephoke) Deputy Managing Director (Finance and Marketing)