Section 1
SECTION 1. The last paragraph of Section One Hundred Ninety of Commonwealth Act Numbered Four hundred sixty-six, otherwise known as the "National Internal Revenue Code" is further amended to read as follows: "SEC. 190. Compensating Tax. — X X X "The provisions of existing laws to the contrary notwithstanding, exemptions from this tax shall be limited to the following: "1. Those enumerated in this Section; "2. Those granted under Republic Act No. 5186, as amended; Republic Act No. 6135, as amended; Republic Act No. 5490; Republic Act No. 4147; Republic Act No. 4501; Republic Act No. 4271, as amended by Republic Act No. 2360. "3. Those granted in pursuance of or in compliance with international treaties or commitments, such as the ADB-RP Host Agreement (1966), the 1947 Convention on Privileges and Immunities of the United Nations and its Specialized Agencies; the United States Agency for International Development-RP Agreement; the 1947 Military Bases Agreement; and other similar treaties or commitments; and "4. Machineries, equipment, tools for production plants to convert mineral ores into saleable form, spare parts, supplies, materials, accessories, explosives, chemicals, and transportation and communication facilities imported by and for the use of new mines and old mines which resume operations, when certified to as such by the Secretary of Agriculture and Natural Resources upon the recommendation of the Director of Mines, for a period ending five (5) years from the first date of actual commercial production of saleable mineral products: Provided, That such articles are not locally available in reasonable quantity, quality and price and are necessary or incidental in the proper operation of the mine; and "5. Those that may be granted by the President upon recommendation of the NEDA in the interest of economic development."