Announcement

Please be informed that the Debenture of PTT Exploration and Production Public Company Limited, No.1/2009, Series 1, 3-Year Term, Due 2012 (PTTEP125A) (“Debenture”) will due on 29th May 2012. The process of repayment of principal and interest will be arranged and made to the debenture holders as recorded in the existing register book as of 15th May 2012. Debenture holders are required to surrender the debenture certificate in order to receive the last repayment of the principal and interest subject to the following redemption process:

1. Scrip debenture, the Debenture holders who request to receive repayment of principal and interest via Bank Transfer please perform either:

   1.1 In Person: The Debenture holders can make an enquiry for the redemption in person at the Registrar’s office, stated on the next page from now until 11th May 2012. The redemption enquired later than 11th May 2012 will be payable by Cheque Only; or

   1.1.2 By Mail: Debenture holders can send the debenture certificate to the Registrar by registered mail (with related documents for the redemption) to the Registrar’s office, stated on the next page from now until 11th May 2012. The redemption enquired later than11th May 2012 will be payable by Cheque Only.

2. Scrip debenture, the Debenture holders who request to receive repayment of principal and interest by Cheque please perform either:

   2.1 In Person: The Debenture holders can make enquiries for the redemption in person or by proxy at the Registrar office, stated on the next page from 25th May 2012; or

   2.2 By Mail: Debenture holders can send the debenture certificate to the Registrar by registered mail (with related documents for the redemption) to the Registrar’s office, stated on the next page. After receiving the debenture certificate, the Registrar will draw and deliver the cheque to the Debenture holders by registered mail as soon as possible

3. Scripless debenture, the Debenture holders whose debenture deposited with TSD will receive the repayment from the Registrar, who will transfer such a amount of money into a bank account and issue the cheque, in accordance with the information of the Debenture holders as per the details of latest interest payment. The cheque will be delivered, along with the withholding tax receipt to the Debenture holders’ address recorded in a database.

For the convenience of the debenture holders and to ensure that principal and interest repayment will be payable on the maturity date; 29th May 2012, please strictly follow the instructions of the debenture redemption process, stated in the previous page. The Registrar will not be able to process any redemption if the debenture certificate is redeemed later than the specified period of time.

For more information, kindly contact the Registrar and Paying agent at

Address of Registrar and Paying Agent Office

TMB Bank Public Company Limited, Silom Soi 7 Branch
393 Silom Building, 2nd Floor, Silom Road, Soi 7, Bangrak, Bangkok 10500
Tel: 0-2230-5575, 0-2230-5783, 0-22305487, 0-2230-6203, 0-2299-2971, 0-2299-1217
Fax: 0-2266-8150
Working Hours: Monday to Friday 8.30 – 17.00