Unreviewed F/S and Business Operation's Explanation Q2/2003

1600 / 125 / 2003 July 30, 2003 The Stock Exchange of Thailand 62, Ratchadapisek Road, Klongtoey Bangkok 10110 Attention : President of The Stock Exchange of Thailand Subject : Filing Unreviewed Financial Statements and Business Operations' Explanation for Quarter 2, 2003 Attachment : 1. Unreviewed Financial Statements for Quarter 2 (Thai 1 Copy) 2. Unreviewed Financial Statements for Quarter 2 (English 1 Copy) As the Bangchak Petroleum Public Company Limited (BCP) has filed unreviewed and unaudited financial statements following the Stock Exchange of Thailand's guidelines for filing unreviewed and unaudited financial statements; The Company would like to file unreviewed financial statements for quarter 2 ended July 30, 2003 and also would like to explain reasons for the variation in business operations in accordance with the profit and loss account more than 20 percent from that of the same period of 2002 as follow : Regarding to the 2nd quarter's business operations in 2003, the Company's total revenues were BHT. 14,971 million and it reported the net loss of BHT. 920 million- higher than that of the same quarter in 2002 BHT. 1,260 million (the 2002 second quarter's net profit was BHT. 341 million). Such loss resulted from the continual decreases of oil prices in the world markets after the US-Iraq war occurred. This affected to the lower Company's revenues, while its costs of good sold were the crude prices purchased in the first quarter, which was high. Thus, the Company realized such damage by BHT. 800 million in the second quarter. Please be informed accordingly. Yours sincerely, (Kiatchai Maitriwong) Assistant Vice President, Corporate Planning Office Corporate Planning Office Tel: 0-2335-4583