SET Announcements

- TRANSLATION - No. 1000/068/2010 April 5, 2010 Subject : Result of the Twentieth Voluntary Conversion of Depository Receipt for Common Shares of The Bangchak Petroleum Public Company Limited (BCP-DR1) on April 5, 2010 Attention : President of The Stock Exchange of Thailand Reference : Terms and Conditions of the Depository Receipt for Common Shares of the Bangchak Petroleum Public Company Limited According to the Terms and conditions of Depository Receipt for Common Shares of The Bangchak Petroleum Public Company Limited (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 Common Shares. The Voluntary conversion may be made on quarterly basis on the 5th day of January, April, July, and October each year, of which, the Twenty first Voluntary Conversion date is April 5, 2010. In addition, the BCP-DR1 holders have to notify the intention for the Twenty first Voluntary Conversion during March 29, 2009 - April 2, 2010 via Bualuang Securities Public Company Limited, the Agent of the Company for Accepting Exercise of the Conversion of BCP-DR1. The Company would like to inform that on April 5, 2010, there was 4 BCP-DR1 Holders converted 2,471,600 Depository Receipts (BCP-DR1) to 2,471,600 Ordinary Shares (BCP). Therefore, the Company's the Depository Receipts will be decreased from 431,472,163 units to 429,000,563 units. Please be informed accordingly. Yours sincerely, -signed- (Surachai Kositsareewong) Executive Vice President Accounting and Finance Accounting and Finance 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