UNREVIEWED F/S AND BUSINESS OPERATION' EXPLANATION Q2/2002

1600 / 068 / 2002 July 16 , 2002 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, 2002 Attachment : 1. Unreviewed Financial Statements for Quarter 2 (Thai 1 Copy) 2. Unreviewed Financial Statements for Quarter 2 (English 1 Copy) According to that the Bangchak Petroleum Public Company Limited (BCP) has filed unreviewed 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 ending June 30, 2002 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 2001 as followed : Regarding the 2nd quarter's business operations in 2002, the Company's total revenues are BHT. 12,890 million. The net profit is BHT. 332 million, higher than that of the same quarter in 2001 BHT. 339 million (the 2001 second quarter's net loss was BHT. 7 million). The Company's Earning per Share (EPS) for this quarter is BHT. 0.64. An increase in the Company's business operations result from the followings : 1. Sales The Company experiences an average increase of 5.8% in retail and industrial markets over the same period of last year resulted from "Bright Bangchak" Campaign. It has been created for improvements of all service stations and convenience stores' new image, service and quality aiming at maximizing customers' satisfaction. 2. Production The Company has improved refinery efficiency in both an increase in production yield and an energy cost saving in production processes. Additionally, the Company has cooperated with other refineries as to reduce import crude transportation cost to the refinery, to create more value-added products and to decrease production cost based on mutual benefit. 3. Refining and Marketing Margin Improvement This has been in accordance with World oil price increase and demand growth both in domestic and World market. Moreover, the Company gains from the foreign exchange fluctuations totaling BHT. 109 million increasing BHT. 136 million from the same period of the preceding year. This is because of a decrease in the Company's loans and foreign trade payable advantageous from Baht appreciation against US. Dollar. Hence, the Company experiences higher profit in the second quarter of this year. Please be informed accordingly. Yours sincerely (Mr. Chokchai Atsawarangsalit) Corporate Planning Manager Corporate Planning Office Tel: 0-2335-4583