F 24-1 Form to Report on Names of Members and Scope of Work of the Audit Committee The Board of Directors meeting of Esso (Thailand) Public Company Limited No. 4/2009 held on August 31, 2009 resolved the meeting's resolutions in the following manners: Appointment of the audit committee/Renewal for the term of audit committee: Chairman of the audit committee Member of the audit committee As follows: (1) Mr. Sompop Amatayakul Chairman of the Audit Committee (2) Mr. Smit Tiemprasert Member of the Audit Committee (3) Asst.Prof. Wattanee Phanachet Member of the Audit Committee ,the appointment/renewal of which shall take an effect as of (date) October 19, 2009 Determination/Change in the scope of duties and responsibilities of the audit committee with the following details: the determination/ change of which shall be effect The audit committee is consisted of: 1. Chairman of the audit committee: Mr. Sompop Amatayakul, term in office 2 Years 2. Member of the audit committee: Mr. Smit Tiemprasert, term in office 2 Years 3. Member of the audit committee: Asst.Prof. Wattanee Phanachet, term in office 2 Years Secretary of the audit committee: Mr. Chai Jangsirikul Enclosed hereto is 3 copies of the certificate and biography of the audit committee. The audit committee number(s) 3 has/have adequate expertise and experience to review creditability of the financial reports. The audit committee of the company has the scope of duties and responsibilities to the Board of Directors as approved at the Board of Directors' meeting no. 1/2009 held on February 27, 2009, which was previously notified to the Securities and Exchange of Thailand. The company hereby certifies that 1. The qualifications of the aforementioned members meet all the requirements of the Stock Exchange of Thailand; and 2. The scope of duties and responsibilities of the audit committee as stated above are in accordance with the principles prescribed by the Stock Exchange of Thailand Signed Authorized Director (Mr. Daniel E. Lyons)