ADDITIONAL INFORMATION ABOUT THE SELLING OF STP&I SHARES

Our Ref : ST/98/1205 September 21, 1998 Subject : Additional Information about the Selling of STP&I Shares Attention : Director and Manager The Stock Exchange of Thailand Referred to our letter about the clarification on selling of STP&I shares, dated September 18,1998, we (Sino-Thai Engineering & Construction Plc.) would like to inform the additional detail as follow : 1. Company Name : STP&I Plc. 2. Paid-Up Capital : Ordinary shares 25,000,000 shares, Baht 10 par value (Ten Baht), Total amount 250,000,000 baht (Two Hundred and Fifty Baht Only) 3. Core Business : Steel fabrication, Steel construction, Industrial boilers and pressure vessels manufacturing 4. Selling Detail : 3,500,000 shares, Baht 11 per share (Eleven Baht), Total amount 38,500,000 baht (Thirty-Eight Million and Five Hundred Thousand Baht Only) which equal to 14% of paid-up capital. 5. Selling Purpose : To generate working capital. 6. Buyer : Mr. Chamni Janchai who has no related transaction in accordance with the SET's Regulation. 7. Transaction Size : Size of this transaction does not fall within the range of SET's regulation to disclose the transaction. 7.1 Net profit after tax of the selling asset compared to net profit of listed company 2.74% 7.2 Total value of return compared to total assets of listed company 0.63% Please be advised and disclose to investors and public. Sincerely yours, (Mr. Anutin Charnvirakul) President