Latest update: 04-16-08

Audit Committee Charter

May 11, 2006

The Audit Committee (the “Committee”) is established by the Board of Directors (the “Board”) primarily for the purpose of overseeing the accounting and financial reporting processes of the Corporation and the reviews and audits of the financial statements of the Corporation. The Committee will also prepare and include in each annual information circular and management information circular used to solicit proxies for the purposes of electing directors of the Board the disclosure required by Multilateral Instrument 52-110 - Audit Committees (the “Instrument”).