Without prejudice to the Philippine commitment in any ratified international agreements or treaty, the following recourse shall be applicable in case of discrimination by foreign countries:
(a) When the President finds that the public interest will be served thereby, the President shall, by proclamation, specify and declare new or additional duties in an amount not exceeding one hundred percent (100%) ad valorem upon goods wholly or in part the growth or product of, or imported in a vessel of any foreign country whenever the President shall find as a fact that such country:
(1) Imposes, directly or indirectly, upon the disposition or transportation in transit or through reexportation from such country of any goods wholly or in part the growth or product of the Philippines, any unreasonable charge, exaction, regulation or limitation which is not equally enforced upon the like goods of every foreign country; or
(2) Discriminates in fact against the commerce of the Philippines, directly or indirectly, by law or administrative regulation or practice, by or in respect to any customs, tonnage, or port duty, fee, charge, exaction, classification, regulation, condition, restriction or prohibition, in such manner as to place the commerce of the Philippines at a disadvantage compared with the commerce of any foreign country.
(b) If at any time the President shall find it to be a fact that any foreign country has not only discriminated against the commerce of the Philippines, as aforesaid, but has, after the issuance of a proclamation as authorized in subsection (a) of this section, maintained or increased its said discrimination against the commerce of the Philippines, the President is hereby authorized, if deemed consistent with the interests of the Philippines and of public interest, to issue a further proclamation directing that such product of said country or such goods imported in their vessels be excluded from importation into the Philippines.
(c) Any proclamation issued by the President under this section shall, if the President deems it consistent with the interest of the Philippines, extend to the whole of any foreign country or may be confined to any subdivision or subdivisions thereof: Provided, That the President may, whenever the public interest requires, suspend, revoke, supplement or amend any such proclamation.
(d) All goods imported contrary to the provisions of this section shall be forfeited to the government of the Philippines and shall be liable to be seized, prosecuted and condemned in like manner and under the same regulations, restrictions, and provisions as may from time to time be established for the recovery, collection, distribution, and remission or forfeiture to the government by the tariff and customs laws. Whenever the provision of this section shall be applicable to importations into the Philippines of goods wholly or in part the growth or product of any foreign country, it shall be applicable thereto, whether such goods are imported directly or indirectly.
(e) It shall be the duty of the Commission to ascertain and at all times be informed whether any of the discriminations against the commerce of the Philippines enumerated in subsections (a) and (b) of this section are practiced by any country; and if and when such discriminatory acts are disclosed, it shall be the duty of the Commission to bring the matter to the attention of the President, and to recommend measures to address such discriminatory acts.
(f) The Secretary of Finance shall make such rules and regulations as are necessary for the execution of a proclamation that the President may issue in accordance with the provisions of this section.