No. Esso/SET/014/57 September 19, 2014 Subject: Units Slowdown and Shutdown for scheduled maintenance to improve refinery efficiency To: President of The Stock Exchange of Thailand Dear Sir, Esso (Thailand) Public Company Limited would like to notify the Stock Exchange of Thailand that the Company will start to shut down Atmospheric Pipestill, Vacuum Pipestill, Naphtha/ Kerosene/ Gasoil Hydrofiner, Aromatic Plant and Fluid Plant for scheduled maintenance to improve efficiency and reliability for the period of 46 days starting from September 21, 2014. As a result, refinery throughput will be reduced and Aromatic Plant production will be reduced during units shutdown period. As to accommodate this scheduled maintenance, the Company has built up and secured inventory and product for continuous supply during the period. The Company, therefore, is expecting no significant impact to the Company's sales. Yours truly, Esso (Thailand) Public Company Limited ............................................................ (Mr. Kemchai Osathapan) ______________________________________________________________________ This announcement was prepared and disseminated by listed company or issuer through the electronic system which is provided for the purpose of dissemination of the information and related documents of listed company or issuer to the Stock Exchange of Thailand only. The Stock Exchange of Thailand has no responsibility for the correctness and completeness of any statements, figures, reports or opinions contained in this announcement, and has no liability for any losses and damages in any cases. In case you have any inquiries or clarification regarding this announcement, please directly contact listed company or issuer who made this announcement.