SELLING THE BCP'S STAKE IN AUCHAN CHIANG MAI CO.,LTD

1600 / 034 / 2001 May 30, 2001 The Stock Exchange of Thailand 62, Ratchadapisek Road, Klongtoey Bangkok 10110 Attention : President of The Stock Exchange of Thailand Subject : Selling the BCP's stake in Auchan Chiang Mai Co.,Ltd.: The Bangchak Petroleum Public Company Limited (BCP) would like to inform that the Company sells the BCP's stake in Auchan Chiang Mai Co.,Ltd., which the Company holds 10% shareholding amount to THB 30 millions to Auchan France at the par value THB 100 per share, totalling THB 30 millions. Please be informed accordingly. Yours sincerely (Mr. Pisespong Sasanavin) Manager, Corporate Planning Office Corporate Planning Office Tel: 301-2842