Section 6
SEC. 6. The grantee of this franchise, his successors and assigns, shall pay annually to the Government of the Philippine Islands one per centum of the gross receipts derived from the sale of electric power or current to individuals and corporations as authorized by section one hereof but nothing in this section shall be construed to interfere with the rights of the municipal, provincial, or Insular governments to assess taxes upon the property, real or personal, of the grantee, his successors or assigns, nor shall it affect the right of the Government to assess and collect any business or income tax on his business.