SECTION 1. Item numbered two hundred and thirty-seven, Class XIII, under section eight of the Philippine Tariff Law, Act of Congress of August fifth, nineteen hundred and nine, is hereby amended to read as follows:
"237. Sugar:
"Sugar refined or unrefined, the same rates as the rates of the import duty from time to time imposed upon sugar in like forms when imported into the United States: Provided, That the duty to be collected on imported sugar, whether refined or unrefined, shall in no case be less than the duty provided by the Philippine Tariff Act approved by Congress August fifth, nineteen hundred and nine."