Informing the replacement of the Company's Secretary

-TRANSLATION- 1000 / 106 / 2009 June 26, 2009 The Stock Exchange of Thailand 62, Ratchadapisek Road Klongtoey Bangkok 10110 Attention: President of the Stock Exchange of Thailand Subject: Informing the replacement of the Company's Secretary Dear Sirs, The resolutions of the Board of Directors meeting of the Bangchak Petroleum Public Company Limited No.6/2009 held on June 26, 2009 resolved to appoint Miss Pakawadee Junrayapes as the Secretary of the Company to replace Mr.Chokchai Atsawarangsalit. This appointment is effective as of July 1, 2009. Please be informed accordingly. Yours sincerely, - Signed - (Anusorn Sangnimnuan) President Office of the Secretary to the Board of Directors Tel: 0-2335-4584 Fax: 0-2713-9419