Harmonized Tariff Schedule of the U.S. › Chapter 29 Organic chemicals
2904.32.00.00Tariff line
Classification path
Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated
2904
Perfluorooctane sulfonic acid, its salts and perfluorooctane sulfonyl fluoride
Ammonium perfluorooctane sulfonate
2904.32.00.00
Rates of duty
General rate (Column 1)3.7%
SpecialFree (A, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Column 225%
Unitkg
Free (A, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Printed page 1438
Measure flags
for origin CN, entry date 2026-10-25 · base rate 3.7%
- Section 301 forced-labor tariff (12.5%)9903.05.31Applies+12.5%China: Column 1 rate + 12.5% additional
- China 301 List 3 (9903.88.03)9903.88.03Applies+25%8-digit subheading 2904.32.00 is on L3
- PGAEPA EP5EPA EP7
Confirmed total 41.2% · max 41.2%Full duty breakdown →