Cancellation Trading Suspension on BCP's Common Stock

1600/009/2547 January 20, 2004 Subject : Cancellation trading suspension (SP) on BCP's Common Stock Attention : President of The Stock Exchange of Thailand As the Bangchak Petroleum Public Company Limited (BCP) had requested the Company's stock trading suspension on Monday 19th January 2004 in order to clarify the right to swap the common shares of BCP to the depository receipts of benefits in ordinary shares of BCP (DR) within the Securities Swap Period January 20 - 22, 2004 at 9.00 a.m. - 4.00 p.m. The Company would like to cancel the trading suspension of BCP stock from the first trading session (morning) on Tuesday 20th January 2004 onwards. In addition, the investors who purchase BCP's shares in SET after Tuesday 20th January 2004 will not be able to deliver their shares to the Securities Swap Agent within the Securities Swap Period. Therefore, they will not receive the right to swap their existing shares to DR We appreciate your assistance in this matter. Sincerely yours, (Watcharapong Saisuk) Assistant Vice President Corporate Planning Office Corporate Planning Office Tel : 0-2335-4583