No. Esso/SET/003/51 August 29, 2008 Subject: Interim Dividend Payment and Appointment of Directors To: President of The Stock Exchange of Thailand Dear Sir, Esso (Thailand) Public Company Limited ("Company") would like to notify the Stock Exchange of Thailand that the Board of Directors' Meeting No. 5/2008 approved for the following matters: 1. Payment of an interim dividend of Baht 0.50 (Fifty Satang only) per share to the shareholders whose names appear on the share register book on the Book Closing Date, which is September 15, 2008 at 12.00 hrs. The interim dividend will be paid by September 26, 2008. Note: The individual shareholders will not be able to claim a tax credit under Section 47 bis of the Revenue Code with respect to this dividend because the net profit from which this dividend is paid has been completely offset by a net loss carried forward from prior accounting periods not exceeding 5 years for corporate income tax purposes. 2. Appointment of Mr. Kwok Yew Meng as a director to replace Mr. Yeo Kee Whye and Mr. Mark Ell Northcutt as a director to replace Mr. Parut Chatikavanij. 3. Change in the signature authority of directors to sign and bind the company to read as "Mr. Daniel E. Lyons' signature and the impression of the Company seal, or the signatures of any two of the following directors and the impression of the Company's seal, will bind the Company: Ms. Porntida Boonsa, Mr. Mongkolnimit Auacherdkul, Mr. Adisak Jangkamolkulchai, Mr. Somjate Saifon, Mr. Kwok Yew Meng, Mr. Mark E. Northcutt. The powers to be exercised in any actions involving court proceedings, public prosecution, interactions with the police and other governmental entities will require the impression of the Company seal and the signature of any one of the following directors of the Company: Ms. Porntida Boonsa, Mr. Mongkolnimit Auacherdkul, Mr. Adisak Jangkamolkulchai, Mr. Somjate Saifon. Please be informed accordingly. Yours truly, Esso (Thailand) Public Company Limited ....................................................................... (Mr. Jim M. Anthony)