4.3 The Option Price shall be fixed by the Board at the time a grant of an Option is approved by the Board and shall be equal to the Fair Market Value as of the date determined by the Board, or if no such determinations have been made, as of the effective date of a grant of an Option, provided that, the Option Price for any Participant that is a U.S. Taxpayer (as defined in Annex A to this Plan) must be determined in accordance with Annex A to this Plan.
4.4 An Option must be exercised within a period of time not exceeding seven years from the date of grant of the Option (or such shorter period of time as the Board may determine and specify in connection with the grant of the Option), otherwise the Option shall expire immediately after the applicable period.
4.5 If the expiry date of any Option falls within any Blackout Period (“Restricted Options”), then the expiry date of such Restricted Options shall, without any further action, be extended to the last day of the Blackout Extension Term. The foregoing extension applies to all Options whatever the date of grant and shall not be considered an extension of the term of the Options as referred to in Section 10.2(c).
5.1 Subject to the provisions of the Plan and the terms and conditions of the Option, an Option or any portion thereof may be exercised from time to time by delivery to the Corporation at its registered office of a notice in writing signed by the Participant or, in the case of the Participant’s death or incapacity, the Participant’s legal personal representative and addressed to the Corporation or by delivery of a notice to such other third party as may be permitted by the Corporation. Such notice shall state the intention of the Participant, or, in the case of the Participant’s death or incapacity, the Participant’s legal personal representative, to exercise the Option or a portion thereof and the number of Common Shares in respect of which the Option is then being exercised, and must be accompanied by payment in full of the applicable Option Price for the Common Shares which are the subject of the exercise. Unless approved by the Chairman of the Board or Corporate Counsel of the Corporation, no Options may be exercised by a Participant during a Blackout Period.
5.2 Subject to Section 8, the vesting of Options granted hereunder shall be determined by the Board at the time of grant, in its sole discretion, and the Participant may only exercise an Option in accordance with the terms of vesting so determined by the Board.
5.3 Where a Participant proposes to purchase Common Shares pursuant to Options granted under this Plan, the Participant or, if applicable, the Participant’s legal personal representative, may instead notify the Corporation in writing that the Participant or, if applicable, the Participant’s legal personal representative, elects to dispose of some or all of the Options to the Corporation (the “Cancelled Options”), in which event the Corporation shall pay to the Participant or, if applicable, the Participant’s legal personal representative, in respect of the Cancelled Options compensation equal to the difference between the Fair Market Value of the Common Shares on the date on which such election is received by the Corporation and the Option Price specified in such Cancelled Options (as it may be modified under Section 7 hereof). Upon such payment being made, all Cancelled Options shall thereupon be cancelled. Notwithstanding the foregoing, the Board may, in its sole and unfettered discretion, decline to
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