No. Esso/SET/003/52 March 2, 2009 Subject: Clarification on the Venue of the 2009 Annual General Meeting of Shareholders To: President of The Stock Exchange of Thailand Re: Letter of Esso (Thailand) Public Company Limited No. Esso/SET/002/52 Subject: Announcement on passage of Board Resolution regarding Date and Agenda for the 2009 Annual General Meeting of Shareholders, Record Date and Book Closing Date dated February 27, 2009 Dear Sir, Reference is made to the Announcement of Esso (Thailand) Public Company Limited ("Company") advising the date and agenda for the 2009 Annual General Meeting of Shareholder. The Company would like to further inform the Stock Exchange of Thailand that the 2009 Annual General Meeting of Shareholders will be held at the Windsor Suites Hotel, Petchpailin Ballroom, 11th Floor, No. 8, Soi 18-20 Sukhumvit Road, Bangkok, 10110. Other information prescribed in the letter referenced remains unchanged. Please be informed accordingly. Yours truly, Esso (Thailand) Public Company Limited ............................................................ (Mrs. Angsna Pirentorn) Company Secretary