Harmonized Tariff Schedule of the U.S. › Chapter 29 Organic chemicals
2923.40.00.00Tariff line
Classification path
Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined
2923
Didecylmethylammonium perfluorooctane sulfonate
2923.40.00.00
Rates of duty
General rate (Column 1)6.2%
SpecialFree (A, AU, BH, CL, CO, D, E, IL, JO, K, KR, MA, OM, P, PA, PE, S, SG)
Column 215.4¢/kg + 36%
Unitkg
Free (A, AU, BH, CL, CO, D, E, IL, JO, K, KR, MA, OM, P, PA, PE, S, SG)
Printed page 1515
Measure flags
for origin CN, entry date 2026-10-26 · base rate 6.2%
- 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 2923.40.00 is on L3
- PGAFDA FD3EPA EP5EPA EP7DEA DE1
Confirmed total 43.7% · max 43.7%Full duty breakdown →