All amounts to be paid by Customer are exclusive of any applicable taxes, duties, customs, imports, levies or any other fee of any nature imposed by any federal, state or local government authority including, but not limited to, any VAT, excise and sales taxes (collectively “ Taxes ”), which Taxes will be payable by Customer. In the event Merck is required to prepay any such Taxes, Customer will reimburse Merck within thirty (30) days after receipt of an invoice from Merck.