</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
2904.31.00.00/Perfluorooctane Sulfonic Acid (PFOS)/Canada

Perfluorooctane Sulfonic Acid (PFOS) from Canada

Perfluorooctane sulfonic acid (PFOS) is a fully fluorinated organic compound with a sulfonate group, classified under HTS 2904.31.00.00 as a sulfonated, halogenated derivative of hydrocarbons. It is used in chemical synthesis and industrial applications, meeting Chapter 29 note (a) for separate chemically defined organic compounds.

Duty Rate — Canada → United States

13.7%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Calculate with your customs valueVerify classification with AI

Import Tips

• Verify compliance with EPA and TSCA regulations due to PFOS restrictions under POPs convention; obtain prior approvals

• Include detailed chemical purity certificates and CAS number (1763-23-1) in documentation

• Avoid misclassification as mixtures; ensure product is pure PFOS, not diluted beyond Chapter 29 note (d)

Perfluorooctane Sulfonic Acid (PFOS) from Canada — Import Duty Rate | HTS 2904.31.00.00