359.2.3. For the purposes of section 359.2.1, a corporation’s paid-up capital amount at any time is the aggregate of(a) its paid-up capital determined for its last taxation year that ended more than 30 days before that time; and
(b) the aggregate of all amounts each of which is the paid-up capital of another corporation associated at that time with the corporation, determined for the other corporation’s last taxation year that ended more than 30 days before that time.