Section 10Sec./Art. 10

The grantee shall keep an account of the gross receipts of its business and shall furnish the Commissioner on Audit and the Treasurer of the Philippines with a copy of such accounts not later than the thirty-first day of January of each year for the preceding year. All the books and accounts of the grantee pertaining to its business shall be subject to the official inspection of the Commission on Audit or its authorized representatives, and the audit and approval of such accounts shall be final and conclusive evidence as to the amount of said gross receipts, except that the grantee shall have the right to appeal to the courts under the terms and conditions provided in the laws of the Philippines.