If a registered shareholder has submitted a management proxy and does not wish the proxy to be voted in this manner, they may revoke their proxy by personally attending the meeting, revoking their proxy and voting their shares in person or by depositing an instrument in writing, including a proxy bearing a later date, either at the office of the Company–s transfer agent, Computershare Trust Company of Canada, Proxy Department, 8th floor, 100 University Avenue, Toronto, ON M5J 2Y1, at any time up to and including the last business day before the day of the meeting, or any adjournment of the meeting, at which the proxy is to be used, or with the chairman of the meeting on the day of the meeting, or any adjournment. Only registered shareholders have the right to revoke a proxy. Non-registered shareholders who wish to change their vote must, at least 7 days before the meeting, arrange for their nominees to revoke the proxy on their behalf.