Sinopec International Pays for Addax Petroleum Corporation Shares and Will Appoint New Addax Petroleum Board of Directors

CALGARY, Canada - Sinopec International Petroleum Exploration and Production Corporation (”Sinopec International”) is pleased to announce that it has paid for the common shares of Addax Petroleum Corporation (”Addax Petroleum”) that were validly deposited to and not withdrawn from the offer (the “Offer”) dated July 9, 2009 made by Mirror Lake Oil and Gas Company Limited (”Mirror Lake”), an indirect wholly-owned subsidiary of Sinopec International. As previously announced by Sinopec International, as of August 14, 2009, an aggregate of 153,734,120 Addax Petroleum common shares, representing approximately 92.67% of the Addax Petroleum common shares on a diluted basis, were tendered to the Offer.

In connection with the Offer, the board of directors of Addax Petroleum will be replaced by nominees of Sinopec International, with Mr. Jean Claude Gandur remaining as a director of Addax Petroleum.

As previously announced, Sinopec International has extended the expiration date of its Offer. The Offer, which originally was scheduled to expire on Friday, August 14, 2009, has been extended until 11:59 PM Toronto time, on Thursday, August 27, 2009.

Reader Advisory

This announcement is for informational purposes only and does not constitute or form part of any offer or invitation to purchase, acquire, subscribe for, sell, dispose of or issue, or any solicitation of an offer to sell, dispose, issue purchase, acquire or subscribe for any security. The Offer (including any variation or extension in accordance with applicable securities laws) is being made exclusively by means of, and subject to the terms and conditions set out in the Offer documentation to be delivered to Addax Petroleum shareholders and filed with the Canadian provincial securities regulators and the UK Listing Authority. Shareholders of Addax Petroleum should read these materials carefully as they contain important information, including the terms and conditions of the Offer. The Offer documentation is or will be available electronically without charge at www.sedar.com.

For further information: Sinopec International Petroleum Exploration and Production Corporation, Mr. Handong Rui, Email: hdrui(at)sipc.cn

Source: Sinopec International

For further information: Sinopec International Petroleum Exploration and Production Corporation, Mr. Handong Rui, Email: hdrui(at)sipc.cn