tariffs.help
Log in Create free account

Code 2921 51 · Heading 2921

o-, m- and p-Phenylene diamines, diaminotoluenes, their derivatives and salts

This code covers o-, m- and p-phenylene diamines and diaminotoluenes, as well as derivatives of these products and their salts. The children distinguish a specified pure m-phenylene diamine, the named diamines and certain halogen-, sulfo-, nitro- or nitroso-derivatives, and other derivatives.

For example

  • o-Phenylene diamine
  • m-Phenylene diamine
  • p-Phenylene diamine
  • Diaminotoluene
See the official tariff text

Official tariff text

o-Phenylenediamine, m-phenylenediamine, p-phenylenediamine or diaminotoluenes and their derivatives; salts thereof

How we got to this code

  1. VI
  2. 29
  3. 2921
  4. 2921 51
Show the steps

Pick the 8-digit code

Pick the description that best matches your product.

Import duty on the codes below: 0.0–6.5%

3 codes below this one

Compare the sibling codes

See all 18 codes at this level

Classification decides the rate here: from 0.0% to 6.5%.

Selling to Norway, Great Britain and the United States

What they charge on arrival.

Norway, Great Britain and the United States use their own tariff lines under the 6-digit HS code. The rates below are what their customs charge on goods arriving from the EU. Match the goods against each country's own wording before you rely on a rate.

Norway

Duty free

  • Their lines2 Norwegian lines

29.21.5110 o-, m-, p-Phenylenediamine, diaminotoluenes, and salts thereof

Norwegian tariff data checked Sept. 13, 2026.

Great Britain

From 0.0% to 6.0%

  • Their lines7 British lines

2921 51 11 00 m-Phenylenediamine, of a purity by weight of 99 % or more and containing: - 1 % or less

Northern Ireland follows other rules.

UK tariff data checked Sept. 13, 2026.

United States

10.0%

Estimated from published US measures

  • Their lines4 US lines
  • Entry dateSept. 17, 2026

2921.51.10.00 Amine-function compounds, Aromatic polyamines and their derivatives; salts thereof, o-, m

The US importer of record files the entry.

US tariff data checked Sept. 16, 2026.

See the 2 Norwegian lines

Selling to Norway

Norway splits the 6-digit category its own way, so these are Norway's own lines under it, not this EU code. Check your product against their wording; what Norwegian customs charges is shown per line.

  • 29.21.5110

    o-, m-, p-Phenylenediamine, diaminotoluenes, and salts thereof

    Ordinary duty
    Duty free

  • 29.21.5190

    Other

    Ordinary duty
    Duty free

Norwegian tariff data version 1.5/1.2, last checked Sept. 13, 2026.

Contains data from Norwegian Customs (data.toll.no), licensed under CC BY 4.0, adapted for display.

See the 7 British lines

Selling to Great Britain

What UK customs charges when goods like these arrive in Great Britain.

  • 2921 51 11 00

    m-Phenylenediamine, of a purity by weight of 99 % or more and containing: - 1 % or less by weight of water, - 200 mg/kg or less of o-phenylenediamine and - 450 mg/kg or less of p-phenylenediamine

    Ordinary duty
    Duty free

  • 2921 51 19 10

    o-Phenylenediamine (CAS RN 95-54-5)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2921 51 19 30

    2-Methyl-p-phenylenediamine sulphate (CAS RN 615-50-9)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2921 51 19 40

    p-Phenylenediamine (CAS RN 106-50-3)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2921 51 19 50

    2-Chloro-1,4-phenylendiamine (CAS RN 615-66-7) or 2,5-dichloro-1,4-phenylendiamine (CAS RN 20103-09-7)

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2921 51 19 90

    Other

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

  • 2921 51 90 00

    Other

    Ordinary duty
    6.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

These rates apply in Great Britain. Different rules may apply for goods entering Northern Ireland.

UK tariff data version v4.0.1599, last checked Sept. 13, 2026.

Contains public sector information licensed under the Open Government Licence v3.0.

Source: UK Department for Business and Trade (data.api.trade.gov.uk).

See the 4 US lines

Selling to the United States

What US customs charges when goods like these arrive from the EU. The US importer of record files the entry and pays the duty.

  • 2921.51.10.00

    Amine-function compounds, Aromatic polyamines and their derivatives; salts thereof, o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof, 4-Amino-2-(N,N-diethylamino) toluene hydrochloride;m-Phenylenediamine;o-Phenylenediamine; Toluene-2,4-diamine; Toluene-2,5-diamine; and Toluene-2,5-diamine sulfate

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2921.51.20.00

    Amine-function compounds, Aromatic polyamines and their derivatives; salts thereof, o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof, Other, Photographic chemicals

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2921.51.30.00

    Amine-function compounds, Aromatic polyamines and their derivatives; salts thereof, o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof, Other, Products described in additional U.S. note 3 to section VI

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2921.51.50.00

    Amine-function compounds, Aromatic polyamines and their derivatives; salts thereof, o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof, Other

    General rate
    6.5%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

Worked out for an entry on Sept. 17, 2026.

US tariff schedule 2026HTSRev19, last checked Sept. 16, 2026.

Last change we recorded: Revision 19 (2026), Sept. 16, 2026.

Anti-dumping and countervailing duties, US import taxes and customs fees are not included.

The descriptions above are the US tariff texts, which the United States publishes in English only.

Source: the US International Trade Commission's Harmonized Tariff Schedule (hts.usitc.gov), public domain, and the measures published in the Federal Register.

This is a planning estimate from the US Harmonized Tariff Schedule (revision shown) and the published Federal Register measures as of the date shown, for a shipment of EU origin. It is not a customs entry, legal advice or a broker's opinion, and tariffs.help is not a US-licensed customs broker. The US importer of record or their broker confirms the classification, origin, value and the duty due before filing.

Duty rates shown here are estimates, read from official EU / Danish, Norwegian and UK tariff data for orientation only. Confirm the current rate with Toldstyrelsen, TARIC, Norwegian Customs or the UK Online Trade Tariff before you file. The rate you pay can also depend on the country of origin. These are base customs duties only: import VAT, excise duties, anti-dumping duties and safeguard or quota measures are not included.