(a) On the Initial Additional Tranche F Term Loan Effective Date, the Borrower shall pay to the Agent, for the account of each Additional Tranche F Term Lender, a fee (the “ Initial Additional Tranche F Upfront Fees ”) in an amount equal to 0.50% of the aggregate principal amount of the Initial Additional Tranche F Term Loans of such Additional Tranche F Term Lender on the Initial Additional Tranche F Term Loan Effective Date (which fee may be payable in the form of original issue discount). The Initial Additional Tranche F Upfront Fees shall be payable on the Initial Additional Tranche F Term Loan Effective Date in immediately available funds and, once paid, shall not be refundable under any circumstances.