18 October 2005

LISTED SECURITIES GRANTED BY THE SET : STEC

LISTED SECURITIES GRANTED BY THE SET : STEC Starting from October 20, 2005, the Stock Exchange of Thailand (SET) allows the securities of SINO-THAI ENGINEERING AND CONSTRUCTION PUBLIC CO.,LTD. (STEC) to be traded on the SET after finishing its capital increase procedures. Name : STEC Paid up Capital Old : 1,023,175,957 Baht (1,023,175,957 common shares) New : 1,024,482,589 Baht (1,024,482,589 common shares) Par Value : 1 Baht/share Allocated to : 1.STEC-W 299,700 warrants exercise to 299,700 common shares Exercise Ratio 1:1 Exercise Price 1 Baht 2.STEC-W2 1,006,932 warrants exercise to 1,006,932 common shares Exercise Ratio 1:1 Exercise Price 8.50 Baht Exercise date : September 30, 2005