Technical Grade Ammonium Perfluorooctane Sulfonate 98% from Mexico
Technical grade APFOS at 98% purity with minor impurities, still classified as a separate chemically defined organic compound under HTS 2904.32.00.00 per Chapter 29 note (a). Used in industrial wetting agent formulations as a perfluorosulfonate salt.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include assay reports confirming ≥98% purity to avoid reclassification; check for Stockholm Convention restrictions; use UN-approved packaging for corrosive fluorochemicals