151. Section 150 does not apply, in relation to the percentage of shares, to a firm incorporated in Canada if the firm’s shares were listed on a Canadian stock exchange on 21 December 1988.
Section 150 does not apply to a firm the shares of which are held(1) by another firm incorporated in Canada the shares of which were listed on a Canadian stock exchange on 21 December 1988, as long as that firm does not become, in relation to the percentage of voting rights, a related legal person; or
(2) by a legal person incorporated in Canada the shares of which were listed on a Canadian stock exchange on 21 December 1988 and that on that date controlled a firm referred to in the first paragraph, as long as that legal person does not become, in relation to the percentage of voting rights, a related legal person.