Structure of BCP Shareholders after Financial Restructuring

1600/021/2547 February 9, 2004 Subject : Structure of Shareholders of BCP after the Financial Restructuring Attention : President of The Stock Exchange of Thailand Regarding the Bangchak Petroleum Public Company Limited ("BCP") shareholders' right to swap existing shares of BCP to the depository receipts of benefits in ordinary shares of BCP ("DR") at the swap ratios of 10 common shares to 5 - 9 DRs within the Securities Swap Period January 20 - 22, 2004, as well as, the capital increase by issuing and offering 231,000,000 common shares at par value 1 Baht per share to Siam DR Co., Ltd. The Company would like to inform that the shareholder structure of BCP after such financial restructuring will be the following : Numbers of share % Siam DR Co., Ltd. - Shares as underlying securities in DR issuance 520,056,055 69.06 - Remaining shares from securities swap 189,617,759 25.18 (The capital reduction for this portion will be executed later) Public 43,367,126 5.76 Total 753,040,940 100.00 Please be informed accordingly. Sincerely yours, (Watcharapong Saisuk) Assistant Vice President Corporate Planning Office Corporate Planning Office Tel : 0-2335-4583