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Code 2921 29 · Heading 2921

Acyclic polyamines and their derivatives or salts, excluding ethylenediamine and hexamethylenediamine

This category covers acyclic polyamines, their derivatives, and salts of these products. It does not include ethylenediamine, hexamethylenediamine, or their salts.

For example

  • An acyclic polyamine
  • A salt of an acyclic polyamine
See the official tariff text

Official tariff text

Acyclic polyamines and their derivatives; salts thereof (excl. ethylenediamine and hexamethylenediamine, and their salts)

How we got to this code

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

Pick the 8-digit code

Import duty on the codes below: 6.0%

Only one code below

2921 29 00

Acyclic polyamines and their derivatives; salts thereof (excl. ethylenediamine and hexamethylenediamine, and their salts)

6.0%

This subheading has one 8-digit code, so that is the code to use.

Open 2921 29 00 Save

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 lines1 Norwegian line

29.21.2900 Other

Norwegian tariff data checked Sept. 13, 2026.

Great Britain

The rate depends on the line.

  • Their lines8 British lines
  • EU originDuty free

2921 29 00 20 Tris[3-(dimethylamino)propyl]amine (CAS RN 33329-35-0)

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

2921.29.00.10 Amine-function compounds, Acyclic polyamines and their derivatives; salts thereof

The US importer of record files the entry.

US tariff data checked Sept. 16, 2026.

See the 1 Norwegian line

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.

  • 29.21.2900

    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 8 British lines

Selling to Great Britain

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

  • 2921 29 00 20

    Tris[3-(dimethylamino)propyl]amine (CAS RN 33329-35-0)

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

  • 2921 29 00 30

    Bis[3-(dimethylamino)propyl]methylamine (CAS RN 3855-32-1)

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

  • 2921 29 00 35

    Pentamethylenediamine (CAS RN 462-94-2) with a purity by weight of 99 % or more, also as an aqueous solution containing by weight more than 50 % of pentamethylenediamine

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

  • 2921 29 00 40

    Decamethylenediamine (CAS RN 646-25-3)

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

  • 2921 29 00 50

    N'-[3-(Dimethylamino)propyl]-N,N-dimethylpropane-1,3-diamine, (CAS RN 6711-48-4)

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

  • 2921 29 00 60

    Bis(2-dimethylaminoethyl)(methyl)amine (CAS RN 3030-47-5)

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

  • 2921 29 00 70

    N,N,N',N'-tetramethylethylenediamine (CAS RN 110-18-9) with a purity by weight of 99 % or more

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

  • 2921 29 00 90

    Other

    Ordinary duty
    Depends on the product details
    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.

  • 2921.29.00.10

    Amine-function compounds, Acyclic polyamines and their derivatives; salts thereof, Other, Tetraethylene pentamine

    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

  • 2921.29.00.20

    Amine-function compounds, Acyclic polyamines and their derivatives; salts thereof, Other, Triethylenetetramine

    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

  • 2921.29.00.30

    Amine-function compounds, Acyclic polyamines and their derivatives; salts thereof, Other, Diethylenetriamine

    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

  • 2921.29.00.55

    Amine-function compounds, Acyclic polyamines 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.