THE SET ADDS NEW LISTED SECURITIES: STEC-W2

The SET adds new listed securities : STEC-W2 The Stock Exchange of Thailand (SET) has granted a listing of certificates representing the rights to purchase shares (warrants) of SINO-THAI ENGINEERING AND CONSTRUCTION PUBLIC CO.,LTD.number2 (STEC-W2) from May 3,2005. The SET has allowed warrants of STEC amounting 170,000,000 units to be traded on the SET under the sector of warrants to subscribe common shares using the trading name of " STEC-W2 " commencing from May 3,2005 onwards. Note: Please see the description, condition and major characteristics of warrants to purchase ordinary shares of STEC in SETSMART.