301.13. For the purposes of sections 301.11 and 301.12, where at a particular time all or substantially all of the property of a particular corporation is property that was acquired or imported into Canada by it for consumption, use or supply exclusively in the course of its commercial activities, all the shares of the capital stock of the particular corporation owned by, and all the indebtedness of the particular corporation owed to, any other corporation that is related to the particular corporation is deemed to be, at that time, property that was acquired by the other corporation for use exclusively in the course of its commercial activities.