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GOODS ACROSS BORDERS

HS HEADING 2904

Sulphonated, nitrated or nitrosated derivatives of hydrocarbons; whether or not halogenated

HEADING

2904

CHAPTER

29Organic chemicals

In plain English

This category covers chemical compounds made from hydrocarbons that have been modified with sulpho, nitro, or nitroso groups, and these items may also contain halogens. The specific types are separated based on which chemical groups are present, such as those containing only sulpho groups or those containing only nitro or nitroso groups. Certain entries specifically identify perfluorooctane sulphonic acid and its various salts, along with perfluorooctane sulphonyl fluoride. Other distinct items include trichloronitromethane, while any other derivatives not listed elsewhere fall into the final remaining group.

PARAPHRASE OF THE OFFICIAL HS 2022 TEXTS BELOW — NOT LEGAL ADVICE

6-digit subheadings (10)

Official HS 2022 subheading texts. National tariff schedules subdivide these further (8-10 digit lines) and set the actual duty rates.

2904.10

Derivatives of hydrocarbons; containing only sulpho groups, their salts and ethyl esters, whether or not halogenated

2904.20

Derivatives of hydrocarbons; containing only nitro or only nitroso groups, whether or not halogenated

2904.31

Derivatives of hydrocarbons; perfluorooctane sulphonic acid, whether or not halogenated

2904.32

Derivatives of hydrocarbons; ammonium perfluorooctane sulphonate, whether or not halogenated

2904.33

Derivatives of hydrocarbons; lithium perfluorooctane sulphonate, whether or not halogenated

2904.34

Derivatives of hydrocarbons; potassium perfluorooctane sulphonate, whether or not halogenated

2904.35

Derivatives of hydrocarbons; salts of perfluorooctane sulphonic acid n.e.c in heading no. 2904, whether or not halogenated

2904.36

Derivatives of hydrocarbons; perfluorooctane sulphonyl fluoride, whether or not halogenated

2904.91

Derivatives of hydrocarbons; trichloronitromethane (chloropicrin), whether or not halogenated

2904.99

Derivatives of hydrocarbons n.e.c. in heading no. 2904, whether or not halogenated

Chapter 29 classification notes

Key chapter for pharmaceutical intermediates, narcotic and psychotropic substances (controlled under the 1961 and 1971 UN Conventions), and list-1 chemicals under the 1988 Convention (drug-precursor control). Import requires prior authorisation from the national competent authority.

Frequent misclassification in this chapter

Finished medicaments: Chapter 30 (3004). Agricultural pesticides: Chapter 38 (3808) when formulated; raw active ingredients may be Chapter 29. Essential oils: Chapter 33 when perfumery-grade.

Classification certainty

The 6-digit level shown here is the internationally harmonised layer. Duty rates attach to national 8-10 digit tariff lines, which differ by country — use the duty calculator for lane estimates. For binding certainty, request a ruling from the destination customs authority.

Binding tariff ruling database

Other headings in Chapter 29

RULES5,339COUNTRIES85ITEMS111CARRIERS28GUIDES46UNIQUE SOURCES645LATEST VERIFICATION2026-07-26MethodologyChangelog