Each Restricted Person will (a) timely file all Tax Returns including any extensions, (b) timely pay all material taxes, assessments, and other governmental charges or levies imposed upon it or upon its income, profits or property before the same become delinquent, (c) within 120 days past the original invoice billing date therefor, pay and discharge all Liabilities owed by it on ordinary trade terms to vendors, suppliers and other Persons providing goods and services used by it in the ordinary course of its business, (d) pay and discharge before the same becomes delinquent all other material Liabilities now or hereafter owed by it, other than royalty payments suspended in the ordinary course of business, and (e) maintain appropriate accruals and reserves for all of the foregoing in accordance with GAAP. Each Restricted Person may, however, delay paying or discharging any of the foregoing so long as it is in good faith contesting the validity thereof by appropriate proceedings, if necessary, and has set aside on its books adequate reserves therefore that are required by GAAP.