Potassium Perfluorooctane Sulfonate from Japan
Potassium perfluorooctane sulfonate (potassium PFOS) is a perfluorinated sulfonate salt used in specialty chemical applications. Classified under HTS 2904.35.00.00 as an 'other salt' of perfluorooctane sulfonic acid, fitting chapter 29 for halogenated sulfonated hydrocarbon derivatives.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Comply with international PFOS bans; secure prior import notifications to EPA under SNUR (Significant New Use Rule)
• Label shipments with CAS number 2795-39-3 and full chemical identity to prevent customs holds
• Test for impurities; chapter excludes mixtures unless meeting stabilizer provisions in notes (f)-(g)