Payment of Taxes and Other Potential Liens Pay and discharge promptly all taxes, assessments and governmental charges or levies imposed upon any of them, upon their respective Property or any part thereof and upon their respective income or profits or any part thereof, except that Borrower and its Subsidiaries shall not be required to pay or cause to be paid (a) any tax, assessment, charge or levy that is not yet past due, or is being contested in good faith by appropriate proceedings so long as the relevant entity has established and maintains adequate reserves for the payment of the same or (b) any immaterial tax so long as no material Property of Borrower or any Subsidiary is at impending risk of being seized, levied upon or forfeited.