156.14.1. For the purposes of section 156.14, if a manufacturing corporation for a taxation year to which a regional limit is applicable for the year is associated in the year with one or more other manufacturing corporations for the year to which a regional limit is applicable for the year, the regional limit that is applicable to each of those corporations for the year is equal to zero, unless all of those corporations file with the Minister in the prescribed form containing prescribed information an agreement whereby, for the purposes of this division, they allocate a particular percentage to one or more of them, in which case the following rules apply:(a) where the percentage or the aggregate of the percentages so allocated, as the case may be, does not exceed 100%, the regional limit applicable to each of those corporations for the year is deemed to be equal to the product obtained by multiplying the amount corresponding to the regional limit that is applicable to it for the year, determined without reference to this section, by the percentage so allocated to it; and
(b) in any other case, the regional limit applicable to the corporation for the year is deemed to be equal to zero.
If one of the corporations fails to file with the Minister the agreement within 30 days after notice in writing by the Minister has been sent to any of them that such an agreement is required for the purposes of any assessment of tax under this Part, the Minister shall, for the purposes of this division, allocate a percentage to one or more of those corporations for the taxation year, which percentage or the aggregate of which percentages, as the case may be, is to be equal to 100% and, in such a case, the regional limit that is applicable to each of those corporations for the year is deemed to be equal to the product obtained by multiplying the amount corresponding to the regional limit applicable to it for the year, determined without reference to this section, by the percentage so allocated to it by the Minister.