Report on the usage of the capital increasing

1000 / 185 / 2004 July 19, 2006 The Stock Exchange of Thailand 62, Ratchadapisek Road, Klongtoey Bangkok 10110 Subject : Report on the usage of the capital increasing Attention : President of The Stock Exchange of Thailand According to The Bangchak Petroleum Public Company Limited (BCP) has offered the new ordinary shares to PTT Public Company Limited (PTT) and specific investors and/or institutional investors and also offered the subordinated convertible debentures to PTT total amount of 6,578,901,160 Baht for financing in the Product Quality Improvement Project (PQI Project). In addition, the Company has offered warrants to the shareholders amounting 69,092,486 units with an exercise price of 18 Baht per share, which such fund is utilized for the working capital of the company as being informed you previously. The Company would like to inform that the Company has received capital from newly issued shares and subordinated convertible debentures after deducting the offering fees of 58,564,900.73 Baht and having net amount of 6,520,336,259.27 Baht to pay gradually for project cost as reporting in Capital Increase Report Form. As of June 30, 2006, the total project cost was 602,483,482.02 Baht and the capital increasing balance was 5,917,852,777.25 Baht. For warrant, the first exercise date was on June 30, 2006. There was one warrant holder converted 25,000 warrants amounting 450,000 Baht. The Company has utilized such fund for the working capital of the company. Please be informed accordingly. Yours sincerely, -signed- (Patiparn Sukorndhaman) Senior Executive Vice President Accounting and Finance Corporate Planning Office Tel: 0-2335-4583