Each of such Loan Party and its Subsidiaries has filed or caused to be filed all tax returns which, to the knowledge of such Loan Party, are required to be filed and has paid all taxes shown to be due and payable on said returns or on any assessments made against it (other than any the amount or validity of which are currently being contested in good faith by appropriate proceedings and with respect to which reserves in conformity with GAAP have been provided on the books of such Loan Party or its Subsidiaries, as the case may be), except to the extent that the failure to do so could not reasonably be expected to result in a Material Adverse Effect.