Where the Authority would otherwise be expressly liable to make payment to Project Co of sums which include amounts payable in turn by Project Co to any Sub-Contractor, the Authority shall not be entitled to withhold, reduce or avoid any such payment to Project Co in reliance only on the fact that the amount which is due from Project Co to the Sub-Contractor or the entitlement of the Sub-Contractor to payment of such amount as a result of the circumstances giving rise to the Authority's obligation to pay, is conditional on the entitlement of, or receipt of payment by Project Co from the Authority.