SET Announcements

-TRANSLATION- No. 1000/143/2010 August 31 , 2010 Subject : To Determine the Dates for Exercising the Voluntary Conversion of Depository Receipt for Common Shares of The Bangchak Petroleum Public Company Limited (BCP-DR1) - October 5, 2010 Attention : President of The Stock Exchange of Thailand Reference : Terms and Conditions of the Depository Receipt for Common Shares of Bangchak Petroleum Public Company Limited Attachment : Detailed Information for Notifications of Exercise of the Conversion of Depository Receipt for Common Shares of Bangchak Petroleum Public Company Limited October 5.2010 As The Bangchak Petroleum Public Company Limited (Company) has issued and offered its ordinary shares to Siam DR Co., Ltd. (Siam DR) for the purpose of being the underlying asset for the issuance of 520.06 units of the Depository Receipt for Common Shares of The Bangchak Petroleum Public Company Limited (BCP-DR1), which Siam DR issued to the investors on January 29, 2004. According to Clause 3.8 of the Terms and Conditions of BCP-DR1 with respect to the rights of Voluntary Conversion, the BCP-DR1 holders have the right to wholly or partly convert BCP-DR1 to ordinary shares (except for the BCP-DR1 foreign holders, who may be subject to the limitation on registration in the Company's shareholder registry as stated in Clause 3.8 (4) (d) of the Terms and Conditions of CSDR). The Voluntary Conversion may be made on quarterly basis on the 5th day of January, April, July, October each year. For this conversion, the exercise is on October 5, 2010 at the conversion ratio of 1 BCP-DR1 for 1 ordinary share. The Company would like to inform SET that the BCP-DR1 holders have to notify the intention for the Voluntary Conversion during Sebtember 28, 2010 - October 4, 2010 via Bualuang Securities Public Company Limited, the Company Agent for Accepting Exercise of the Conversion of BCP-DR1. (The detailed information is as attachment.) The BCP-DR1 holders can download the BCP-DR1 conversion manual and the form of notice of intention for Voluntary Conversion from the Company's website. (www.bangchak.co.th) Please be informed accordingly. Yours sincerely, -signed- (Surachai Kositsareewong) Executive Vice President Accounting and Finance Investor Relations Section Tel : 0-2335-4583 CC: 1. Managing Director, Siam DR Co., Ltd. 2. Managing Director, Thailand Securities Depository Co, Ltd. 3. Managing Director, Bualuang Securities Public Company Limited Detailed Information for Notifications of Exercise of BCP-DR1 - October 5, 2010 Agent Accepting Notifications of Exericse of BCP-DR1 (the Agent) : Bualuang Securities Public Company Limited (BLS) 191 Silom Complex Office Building, 29/F, Silom Road, Silom, Bangrak, Bangkok 10500 Tel. 0-2618-1140, 0-2618-1141 Fax 0-2618-1120 Contact persons : Khun Trinop Kumnerdkarn or Khun Jirawat Sittidech Account of BLS for Accepting Transfer of BCP-DR1 : 224-000000035-5 for local DR's holders 224-000000035-5 for foreign DR's holders Date of Exercise : Every 5th day of January, April, July and October of each year throughout the term of BCP-DR1. The first day of exercise is on April 5, 2005 and the last day is on October 5, 2013. In case the date of exercise is a non-banking day, the date of exercise will be the next banking day. For this conversion, the exercise is on October 5, 2010. Period of Exercise : BCP-DR1 holders must notify the Agent during the working hours of the Agent from 9.00 hours until 16.00 hours within 5 working days prior to each date of exercise. . For this conversion, the notification period is during on the September 28 , 2010 - October 4, 2010. Method of Exercise : BCP-DR1 holders notify the Agent, together with the documents as follows : 1. Form of Notifications of Exercise of BCP-DR1 (the Notification Form) together with the power of attorney. 2. In case of scrip system, BCP-DR1 holders must submit the endorsed scrips in accordance with the number specified in the Notification Form, together with the cheque made payable to "Bualuang Securities Public Company Limited" In case of scripless system, BCP-DR1 holders will notify through the Depositor and transfer BCP-DR1 to the securities deposit account of the Agent, together with the cheque made payable to "Bualuang Securities Public Company Limited" 3. In case of juristic person, a copy of the Affidavit issued by Ministry of Commerce and certified by the authorized person(s). 4. In case of foreign juristic person, a copy of business registration certified by the Notary Public or a competence authority in the incorporation country dated not exceeding 3 months before the filing date, together with a certified true copy of passport of the authorized person(s). 5. In case of individual, a copy of identification card of the BCP-DR1 holder. The Notification Form : BCP-DR1 holders would be able to obtain and submit the Notification Form to the office of the Agent. Fee and payment methods : BCP-DR1 holders should pay a brokerage fee of 0.25% of offering price at 13.00 Bahts per unit and VAT of brokerage by cash or cheque or cashier cheque, within Bangkok clearing house, crossed and made account payee to "Bualuang Securities Public Company Limited" (If notify in the last day of notification period, on October 4, 2010, the Agent would accept payment by cash or cashier cheque only.