8 8 7 and cancelled and all options are (whether or not then exercisable) automatically cancelled. If a person retires in accordance with the Corporation’s retirement policy at such time, the pro-rata portion of any unvested performance-based RSUs will not be forfeited or cancelled and instead shall vest after the retirement has occurred (as if it had not occurred), but only if the performance vesting criteria are met on the applicable measurement date. Blackout Periods: Under the 2018 Share Comp ensation Plan, should the vesting of an RSU fall, or the term of an option expire on a date that falls, within a blackout period or within nine business days following the expi ration of a blackout period, the vesting or expiration dated, as applicable, will be auto matically extended to the tenth business day after the end of the blackout period. Change of Control: The 2018 Share Compensation Plan provides that any unvested RSUs and any unvested options will vest at such time as determined by the CESGC such that RSU and option holders will be able to participate in a change of control transaction, including by surrendering such RSUs and opti ons to the Corporation or a third party or exchanging such RSUs and options for consideration in the form of cash and/or securities. Transferability: RSUs awarded and options granted under the 2018 Share Compensation Plan are non-transferable other than in accordance with the 2018 Share Compensation Plan. Amendment Provisions in the 2018 Share Co mpensation Plan: The Board may amend the 2018 Share Compensation Plan or any RSU or option at any time without the consent of any participants under the 2018 Share Compensation Plan provided that such amendment shall: (a) not adversely alter or impair any RS U previously awarded or any option previously granted except as permitted by the adjustment provisions of the 2018 Share Compensation Plan; (b) be subject to any regulatory approvals including, where required, the approval of the TSX; and (c) be subject to shareholder approval, wher e required, by law or the requirements of the TSX, provided that shareholder approval shall not be required for the following amendments: (i) amendments of a “housekeeping nature”, including any amendment to the 2018 Share Compensation Plan or a RSU or option that is necessary to comply with applicable laws, tax or accounting provisions or the requirements of any regulatory au thority or stock exchange and any amendment to the 2018 Share Compensation Plan or a RSU or option to correct or rectify any ambiguity, defective provision, error or omission therein, including any amendment to any definitions therein; (ii) amendments that are necessary for RSUs or options to qualify for favourable treatment under applicable tax laws;