8.5 If any payment by one party under an indemnity in this Agreement is subject to income tax or corporation tax (or any tax replacing them) in the hands of the recipient, the recipient may demand in writing to the party making the payment that the payment shall be increased by such amount as would ensure that, after taking into account any such tax payable in respect of such additional amount, the recipient receives and retains a net sum equal to the amount it would have otherwise received had the payment not been subject to such tax. In relation to any such additional amount payable to Project Co, Project Co and the Board shall have the same rights and obligations as would apply to a Relevant Tax Liability under Clause 48.7(c) and Clauses 48.6 to 48.11 (inclusive) shall apply mutatis mutandis to the payment of the additional amount. The party making the payment shall pay such additional amount within ten (10) Business Days of receipt of such demand.