Ammonium Perfluorooctane Sulfonate from Germany
Ammonium perfluorooctane sulfonate is the ammonium salt form of PFOS, a fluorosurfactant precursor. It qualifies for HTS 2904.35.00.00 as an other salt of perfluorooctane sulfonic acid under the sulfonated, halogenated hydrocarbons of heading 2904.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Declare exact cation (ammonium) and anion purity; customs may require NMR/FTIR spectra for verification
• Monitor EU REACH and US TSCA restrictions; many uses prohibited except for essential applications
• Ship in stabilized form only if meeting note (f); otherwise classify as impure mixture