HTS code 3904.30.20.00 covers "Polymers of vinyl chloride or of other halogenated olefins, in primary forms › Vinyl chloride-vinyl acetate copolymers › Vinyl acetate-vinyl chloride-ethylene terpolymers, containing by weight less than 50 percent derivatives of vinyl acetate, except those polymerized from aromatic or modified aromatic monomers" under the US Harmonized Tariff Schedule. This is the official duty rate charged by US Customs when this product is imported into the United States, sourced directly from the U.S. International Trade Commission and refreshed daily.