The Borrower has filed or caused to be filed all tax returns which are required to be filed (or has obtained authorized extensions for such filings) and has paid all taxes shown to be due and payable on said returns or on any assessments made against it or any of its property and all other taxes, fees or other charges imposed on it or any of its property by any Governmental Authority (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 the Borrower, as the case may be); no material tax Lien has been filed against the Borrower, and, to the knowledge of the Borrower, no claim is being asserted, with respect to any such tax, fee or other charges.