The Borrower shall not create, incur, assume or suffer to exist any Lien of any kind upon any of its property, assets or revenues, whether now owned or hereafter acquired, other than (a) Liens arising by operation of law, (b) Liens under any Credit Document to which the Borrower is a party, (c) Liens existing on the Closing Date if disclosed to the Lenders prior to the date hereof, and any modifications, replacements, renewals, or extensions thereof, (d) Liens for Taxes, assessments or other governmental charges or levies not yet delinquent or that are being contested in good faith by appropriate proceedings, (e) Liens securing Indebtedness permitted by Section 5.13(c), and (f) other Liens with respect to the property or assets of the Borrower to the extent would not reasonably be expected to have a Material Adverse Effect.