N-Methylperfluorooctane Sulfonamide from Japan
N-Methylperfluorooctane sulfonamide (N-MePFOSA) is a separate chemically defined compound used in manufacturing water- and oil-repellent coatings. Classified under HTS 2935.50.00.00 as a perfluorooctane sulfonamide per Chapter 29 note (a).
Duty Rate — Japan → United States
21%
Rate breakdown
9903.04.628.5%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
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
• Submit TSCA certification for PFAS chemicals to meet EPA pre-manufacture notification requirements
• Ensure CAS number 31506-32-8 documentation matches exactly for customs verification
• Avoid bulk packaging that could trigger Chapter 38 mixture classification