High-Purity EtFOSE for Polymer Synthesis from Mexico
This high-purity grade of N-Ethyl-N-(2-hydroxyethyl)perfluorooctane sulfonamide is optimized for polymerization into fluoropolymers. It is classified under HTS 2935.30.00.00 as the exact named sulfonamide, fitting Chapter 29's criteria for chemically defined organic compounds without impurities affecting classification. Used in surface treatment formulations.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Request supplier's TSCA certification for US entry; use UN-approved packaging for corrosive fluorochemicals; monitor for anti-dumping duties on Chinese-origin PFAS