21.5.2. The provisions referred to in paragraph c of section 21.5 are, in the case of a share issued between 16 November 1978 and 24 October 1979, the following:(a) the owner thereof may, within 10 years after the date of issue, cause the share to be redeemed, acquired or cancelled, otherwise than by reason only of a right to convert or exchange the share, or cause its paid-up capital to be reduced,
(b) the issuing corporation or any person with whom it is not dealing at arm’s length is or may be required to redeem, acquire or cancel, in whole or in part, the share or to reduce its paid-up capital, otherwise than pursuant to a requirement of the corporation to redeem, acquire or cancel, annually, not more than 5% of the issued and fully paid shares of that class, or unless the owner may cause the share to be redeemed, acquired or cancelled by reason only of a right to convert or exchange the share, or
(c) a person is or may be required to provide a guarantee or a similar covenant, including the lending of funds to or the placing of amounts on deposit with, or on behalf of, the owner thereof or any person related thereto, with respect to the share.