290431 — Sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not…: Perfluorooctane sulphonic acid
HS code 290431 classifies Sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not…: Perfluorooctane sulphonic acid. It belongs to Chapter 29 (Organic chemicals) of Section VI (Products of the chemical or allied industries) of the Harmonized System. Duty rates are recorded for 1 country.
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Description
Sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated : Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride : Perfluorooctane sulphonic acid
Duty rates
US MFN base rate (HTS 2026, Column-1 General) — excludes Section 301 / IEEPA add-ons; not legal advice. Other countries’ rates and live duties via the EximAgent CLI.
- USUnited States3.7%MFNas of Jan 1, 2026
Common questions
- What is HS code 290431?
- Sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated : Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride : Perfluorooctane sulphonic acid
- What duty rates apply to 290431?
- Listed duty rates range from 3.7% across 1 country rate.
Browse all of Chapter 29: Organic chemicals →
Go beyond the code
Find the companies shipping under 290431 — ranked by shipments recorded in US customs filings over the last 12 months.