Versions of s. 186(1)(c)

if at the particular time all or substantially all of the property of the parent is property that was manufactured, produced, acquired or imported by the parent for consumption, use or supply exclusively in the course of its commercial activities, property that is units or indebtedness of operating corporations of the parent or a combination of such property, the parent acquired or imported the particular property or service or brought it into the participating province, as the case may be, for the purpose of carrying on, engaging in or conducting an activity of the parent other than