UK Global Tariff · commodity code · HS 2921.29
2921 29 00 40: Other acyclic polyamines: Decamethylenediamine (cas rn 646-25-3)
Other acyclic polyamines
✓ Can be used in a customs declaration Data: UK Global Tariff · checked on 24 October 2026
- 2921 Amine-function compounds
- Acyclic polyamines and their derivatives; salts thereof
- 2921 29 00 00 Other
- 2921 29 00 40 Decamethylenediamine (cas rn 646-25-3)
What you pay
Importing into UK
Additional duties and import rules
Charges on top of the customs duty, and rules the goods must meet at the border.
Additional duties and charges 3
- Additional dutyAdditional duties 35%
- Applies to goods from
- Belarus, Russia
- Legal act
- 2022 No. 833
- Documents
- 9018
- Duty suspensionAutonomous tariff suspension Free
- Applies to goods from
- all countries
- In force
- until 31 December 2028
- Legal act
- 2020 No. 1435
- Duty suspensionSuspension - goods for certain categories of ships, boats and other vessels and for drilling or production platforms Free
- Applies to goods from
- all countries
- Legal act
- 2020 No. 1431
- Documents
- C990 End use authorisation ships and platforms (Column 8c, Annex A of Delegated Regulation (EU) 2015/2446)
Import requirements 3
- Prohibition or restrictionImport prohibition
- Applies to goods from
- North Korea
- Legal act
- S.I. 2019/411
- Import controlRestriction on entry into free circulation
- Applies to goods from
- Syria, Ukraine
- Legal act
- S.I. 2019/792, S.I. 2022/395
- Documents
- 9009
- 9010
- 9017
- Import controlImport control on restricted goods and technologies
- Applies to goods from
- Iran, Libya, Russia
- Legal act
- S.I. 2019/461, 2020 No. 1665, S.I. 2019/855
Preferential rates by country
| Agreement or scheme | Countries | Rate |
|---|---|---|
| standard rate (no agreement) | — | 6% |
| DCTS Comprehensive | Afghanistan, Angola, Bangladesh, Benin and 38 moreAfghanistan, Angola, Bangladesh, Benin, Bhutan, Burkina Faso, Burundi, Cambodia, Central African Republic, Chad, Comoros, Congo - Kinshasa, Djibouti, Eritrea, Ethiopia, Gambia, Guinea, Guinea-Bissau, Haiti, Kiribati, Laos, Liberia, Malawi, Mali, Mauritania, Myanmar (Burma), Nepal, Niger, Rwanda, São Tomé & Príncipe, Senegal, Sierra Leone, Somalia, South Sudan, Sudan, Tanzania, Timor-Leste, Togo, Tuvalu, Uganda, Yemen, Zambia | Free |
| European Union (including code " EU") | Free | |
| DCTS Enhanced | Algeria, Bolivia, Cape Verde, Congo - Brazzaville and 13 moreAlgeria, Bolivia, Cape Verde, Congo - Brazzaville, Cook Islands, Kyrgyzstan, Micronesia, Mongolia, Nigeria, Niue, Pakistan, Philippines, Sri Lanka, Syria, Tajikistan, Uzbekistan, Vanuatu | Free |
| CARIFORUM | Antigua & Barbuda, Bahamas, Barbados, Belize and 10 moreAntigua & Barbuda, Bahamas, Barbados, Belize, Dominica, Dominican Republic, Grenada, Guyana, Jamaica, St Kitts & Nevis, St Lucia, St Vincent & the Grenadines, Suriname, Trinidad & Tobago | Free |
| OCTs (Overseas Countries and Territories) | Anguilla, Bermuda, British Indian Ocean Territory, British Virgin Islands and 7 moreAnguilla, Bermuda, British Indian Ocean Territory, British Virgin Islands, Cayman Islands, Falkland Islands, Montserrat, Pitcairn Islands, South Georgia & South Sandwich Islands, St Helena, Turks & Caicos Islands | Free |
| Central America | Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama | Free |
| SADC EPA | Botswana, Eswatini, Lesotho, Mozambique, Namibia | Free |
| Eastern and Southern Africa States | Madagascar, Mauritius, Seychelles, Zimbabwe | Free |
| CPTPP | Brunei, Malaysia | Free |
| UK–Andorra agreement | Andorra | Free |
| UK–Albania agreement | Albania | Free |
| UK–Australia agreement | Australia | Free |
| UK–Canada agreement | Canada | Free |
| UK–Switzerland agreement | Switzerland | Free |
| UK–Côte d’Ivoire agreement | Côte d’Ivoire | Free |
| UK–Chile agreement | Chile | Free |
| UK–Cameroon agreement | Cameroon | Free |
| UK–Colombia agreement | Colombia | Free |
| UK–Ceuta & Melilla agreement | Ceuta & Melilla | Free |
| UK–Ecuador agreement | Ecuador | Free |
| UK–Egypt agreement | Egypt | Free |
| UK–Fiji agreement | Fiji | Free |
| UK–Faroe Islands agreement | Faroe Islands | Free |
| UK–Georgia agreement | Georgia | Free |
| UK–Ghana agreement | Ghana | Free |
| UK–Israel agreement | Israel | Free |
| UK–India agreement | India | Free |
| UK–Iceland agreement | Iceland | Free |
| UK–Jordan agreement | Jordan | Free |
| UK–Japan agreement | Japan | Free |
| UK–Kenya agreement | Kenya | Free |
| UK–South Korea agreement | South Korea | Free |
| UK–Lebanon agreement | Lebanon | Free |
| UK–Liechtenstein agreement | Liechtenstein | Free |
| UK–Morocco agreement | Morocco | Free |
| UK–Moldova agreement | Moldova | Free |
| UK–North Macedonia agreement | North Macedonia | Free |
| UK–Mexico agreement | Mexico | Free |
| UK–Norway agreement | Norway | Free |
| UK–New Zealand agreement | New Zealand | Free |
| UK–Peru agreement | Peru | Free |
| UK–Papua New Guinea agreement | Papua New Guinea | Free |
| UK–Palestinian Territories agreement | Palestinian Territories | Free |
| UK–Serbia agreement | Serbia | Free |
| UK–Solomon Islands agreement | Solomon Islands | Free |
| UK–Singapore agreement | Singapore | Free |
| UK–San Marino agreement | San Marino | Free |
| UK–Tunisia agreement | Tunisia | Free |
| UK–Türkiye agreement | Türkiye | Free |
| UK–Ukraine agreement | Ukraine | Free |
| UK–Vietnam agreement | Vietnam | Free |
| UK–Samoa agreement | Samoa | Free |
| UK–Kosovo agreement | Kosovo | Free |
| UK–South Africa agreement | South Africa | Free |
| DCTS Standard | Indonesia | 2.5% |
Subdivisions
- 2921 29 00 40 Decamethylenediamine (cas rn 646-25-3) 6%
- 2921 29 00 40 Decamethylenediamine (cas rn 646-25-3) 6%
Footnotes
TN701 According to the Council Regulation (EU) No 692/2014 (OJ L183, p. 9), as retained in UK La…
The prohibition shall not apply in respect of:
(a) the execution until 26 September 2014, of trade contracts concluded before 25 June 2014, or of ancillary contracts necessary for the execution of such contracts, provided that the natural or legal persons, entity or body seeking to perform the contract have notified, at least 10 working days in advance, the activity or transaction to the competent authority of the Member State in which they are established.
(b) goods originating in Crimea or Sevastopol which have been made available to the Ukrainian authorities for examination, for which compliance with the conditions conferring entitlement to preferential origin has been verified and for which a certificate of origin has been issued in accordance with Regulation (EU) No 978/2012 and Regulation (EU) No 374/2014, as retained in UK Law, or in accordance with the EU-Ukraine Association Agreement
TN702 According to the Council Regulation (EU) No 1351/2014 (OJ L365, p. 46), the export of good…
(a) to any natural or legal person, entity or body in Crimea or Sevastopol, or
(b) for use in Crimea or Sevastopol.
The prohibitions shall be without prejudice to the execution until 21 March 2015 of an obligation arising from a contract concluded before 20 December 2014, or by ancillary contracts necessary for the execution of such contracts, provided that the competent authority has been informed at least five working days in advance.
When related to the use in Crimea or Sevastopol, the prohibitions do not apply where there are no reasonable grounds to determine that the goods and technology or the services are to be used in Crimea or Sevastopol.
UK: imports by month · HS 2921.29
Main suppliers, last 12 months
| Country | Value | Share | Change |
|---|---|---|---|
 Netherlands | £6m | 22.5% | -8.3% |
 China | £5.5m | 20.6% | +26.8% |
 United States | £4.5m | 17% | +18.1% |
 Switzerland | £2.1m | 8.1% | +444.3% |
 Germany | £2.1m | 7.9% | -39% |
 Belgium | £1.8m | 6.9% | -38.6% |
 Sweden | £1.8m | 6.7% | -1.4% |
 Saudi Arabia | £891k | 3.4% | +759.6% |
Same subheading in other tariffs
2921.29 Acyclic polyamines and their derivatives; salts thereof: other
EU 6% Third-country duty 1 tariff line 
Türkiye 6% Third-country duty 1 tariff line USA 6.5% General (MFN) 1 tariff line 
Canada Free Third-country duty 1 tariff line 
Mexico Free – 7% Third-country duty 4 tariff lines · average 1.8% 
Brazil Free Third-country duty 3 tariff lines 
Argentina Free Third-country duty 4 tariff lines 
Peru Free Third-country duty 1 tariff line 
New Zealand Free Third-country duty 1 tariff line 
Japan 3.1% Third-country duty 1 tariff line 
Taiwan 1% Third-country duty 2 tariff lines 
GCC 5% Third-country duty 2 tariff lines Switzerland Free Third-country duty 1 tariff line 
Norway Free Third-country duty 1 tariff line 
North Macedonia 3% Third-country duty 1 tariff line 
Nigeria 5% Third-country duty 1 tariff line UK lines: 2921.29
- 2921 29 00 20Tris[3-(dimethylamino)propyl]amine (cas rn 33329-35-0)
- 2921 29 00 30Bis[3-(dimethylamino)propyl]methylamine (cas rn 3855-32-1)
- 2921 29 00 35Pentamethylenediamine (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
- 2921 29 00 40Decamethylenediamine (cas rn 646-25-3)
- 2921 29 00 50N'-[3-(dimethylamino)propyl]-n,n-dimethylpropane-1.3-diamine, (cas rn 6711-48-4)
- 2921 29 00 60Bis(2-dimethylaminoethyl)(methyl)amine (cas rn 3030-47-5)
- 2921 29 00 70N,n,n',n'-tetramethylethylenediamine (cas rn 110-18-9) with a purity by weight of 99% or more
- 2921 29 00 90Acyclic polyamines and their derivatives; salts thereof: other, other
Binding rulings for similar goods
Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.
Legal notes
Commodity code 2921 29 00 40 is a line of the UK Global Tariff under HS subheading 2921.29 (acyclic polyamines and their derivatives; salts thereof: other).
The third-country duty is 6%.
173 countries pay no duty in the UK thanks to trade agreements and preference schemes such as DCTS Comprehensive and European Union, against a standard rate of 6%.
In the UK, additional duty of 35% applies on top of the customs duty to goods from Belarus and Russia.
One statistical sub-line below it is used in the declaration.
Imports of other acyclic polyamines (HS 2921.29) into the UK came to £26.5m between September 2025 and August 2026 (up 6% on the year before); Netherlands supplied 23%, followed by China.
For the same subheading, the EU duty is 6%, the Türkiye duty is 6%, the US duty is 6.5%, the Canada duty is free, the Mexico duty is 0%–7%, the Brazil duty is free, the Argentina duty is free, the Peru duty is free, the New Zealand duty is free, the Japan duty is 3.1%, the Taiwan duty is 1%, the GCC duty is 5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is 3% and the Nigeria duty is 5%.
The UK imported goods of subheading 2921.29 worth US$35m in 2024; the largest supplier was the Netherlands.
Questions and answers
What is the UK import duty for commodity code 2921 29 00 40?
The third-country duty in the UK Global Tariff is 6%. Preferential rates for goods from agreement countries, anti-dumping duties and VAT are not included.
Which countries get a lower rate on 2921 29 00 40?
174 countries have a preferential rate on this line, 173 of them at 0%, under DCTS Comprehensive, European Union and DCTS Enhanced and other arrangements. The rate applies only to goods that meet the rules of origin of the agreement, with proof of origin. Choose the country of origin on this page to see its rate.
Do anti-dumping or other extra duties apply to 2921 29 00 40?
Additional duty of 35% on goods from Belarus and Russia. These are charged on top of the customs duty.
Where does the UK import these goods from?
For subheading 2921.29 as a whole, the largest supplier in 2024 was the Netherlands (US$9m), followed by Belgium.