HS code 290499: Sulphonated
- Covers:
- Sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not… not listed under the other codes in this heading.
- Not covered:
- 290410 (Derivatives containing only sulpho groups, their…); 290420 (Derivatives containing only nitro or only…); 290431 (Perfluorooctane sulphonic acid, its salts and…); and others.
- Listed US duty:
- 3.7%–5.5% (US general rate, HTS 2026)
Official description
Sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated : Other : Other
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Suggestions from the HS index, not a customs ruling
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What 290499 covers and what it doesn’t
Official text: Sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated › Other › Other.
This is the “other” line of heading 2904 (sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated). It takes goods of that heading that no more specific subheading names. These go elsewhere:
- 290410 Derivatives containing only sulpho groups, their salts and ethyl esters
- 290420 Derivatives containing only nitro or only nitroso groups
- 290431 Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride — Perfluorooctane sulphonic acid
- 290432 Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride — Ammonium perfluorooctane sulphonate
- 290433 Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride — Lithium perfluorooctane sulphonate
- 290434 Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride — Potassium perfluorooctane sulphonate
- 290435 Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride — Other salts of perfluorooctane sulphonic acid
- 290436 Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride — Perfluorooctane sulphonyl fluoride
- 290491 Trichloronitromethane (chloropicrin)
Nearby codes to check
- Heading 2904 Sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated: every subheading side by side.
US duty rate
3.7%–5.5%
General (MFN) rate in the US Harmonized Tariff Schedule, 2026 edition. A range means the rate depends on the 8-digit US line your product falls under. Extra duties such as Section 301, Section 232 or anti-dumping orders can apply on top, depending on origin. Check the lines on hts.usitc.gov. Not legal advice.
Who imports under 290499
EximAgent lists companies with recorded shipments under this code, built from customs records, with who they buy from and how often. See importers of 290499 →
Common questions
- What is HS code 290499?
- Sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated : Other : Other
- What duty rates apply to 290499?
- Listed US duty: 3.7%–5.5% (US general rate, HTS 2026).
Browse all of Chapter 29: Organic chemicals →
Go beyond the code
Classify a product and check the duty for your destination with the CLI, then keep researching in your own agent.