(4) for the purpose of determining an input tax refund of the pension entity and for the purposes of subdivision 6.6 of Division I of Chapter VII and sections 450.0.1 to 450.0.12, the pension entity is deemed(a) to have received a supply of the employer resource on the last day of the fiscal year,
(b) except where the pension entity is a selected listed financial institution on the last day of the fiscal year, to have paid tax in respect of the supply referred to in subparagraph a, on that day, equal to the amount of tax determined in accordance with subparagraph 3, and
(c) to have acquired the employer resource for consumption, use or supply in the course of its commercial activities to the same extent that the property or service supplied in the pension supply was acquired by the pension entity for consumption, use or supply by the pension entity in pension activities in respect of the pension plan that are commercial activities of the pension entity.