Subheading · Chapter 29 · Heading 2921

2921.59: Aromatic polyamines and their derivatives; salts thereof: other

Official description Other

Subheading 2921.59 belongs to heading 2921 (amine-function compounds) in chapter 29.

Importing into Country of origin

What you pay

Importing into UK

Customs duty Free – 6% standard rate · across 8 national lines depends on the country of origin

Additional duties and charges 4 additional measures Import requirements: 3

VAT 20.00 % import VAT

Duty calculatorCalculate duty and taxes →

Rates by national line · UK Global Tariff

UK lines →

2921 59 00 00 Other
2921 59 50 00 M-phenylenebis(methylamine); 2.2′-dichloro-4.4′-methylenedianiline; 4.4′-bi-o-toluidine; 1.8-naphthylenediamine Free
2921 59 50 10 2.2'-dichloro-4.4'-methylenedianiline (moca) (cas rn 101-14-4) Free
2921 59 50 90 Other Free
2921 59 90 00 Other
2921 59 90 15 Mixture of isomers of 3.5-diethyltoluenediamine (cas rn 68479-98-1) 6%
2921 59 90 30 3.3'-dichlorobenzidine dihydrochloride (cas rn 612-83-9) 6%
2921 59 90 40 4.4'-diaminostilbene-2.2'-disulphonic acid (cas rn 81-11-8) 6%
2921 59 90 75 4.4’- diaminodiphenylmethane (mda) (cas rn 101-77-9) 6%
2921 59 90 85 4.4'-methanediyldianiline (cas rn 101-77-9) with a purity by weight of at least 97%, in the form of granules, for use in the manufacture of prepolymers 6%
2921 59 90 90 Other Free
2921 59 00 00 Other
2921 59 50 00 M-phenylenebis(methylamine); 2.2′-dichloro-4.4′-methylenedianiline; 4.4′-bi-o-toluidine; 1.8-naphthylenediamine Free
2921 59 50 10 2.2'-dichloro-4.4'-methylenedianiline (moca) (cas rn 101-14-4) Free
2921 59 50 90 Other Free
2921 59 90 00 Other
2921 59 90 15 Mixture of isomers of 3.5-diethyltoluenediamine (cas rn 68479-98-1) 6%
2921 59 90 30 3.3'-dichlorobenzidine dihydrochloride (cas rn 612-83-9) 6%
2921 59 90 40 4.4'-diaminostilbene-2.2'-disulphonic acid (cas rn 81-11-8) 6%
2921 59 90 75 4.4’- diaminodiphenylmethane (mda) (cas rn 101-77-9) 6%
2921 59 90 85 4.4'-methanediyldianiline (cas rn 101-77-9) with a purity by weight of at least 97%, in the form of granules, for use in the manufacture of prepolymers 6%
2921 59 90 90 Other Free

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 5

Additional dutyAdditional duties 35%
Applies to goods from
Belarus, Russia

Legal act
2022 No. 833
Documents
- 9018
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)
Duty suspensionAutonomous tariff suspension Free
Applies to goods from
all countries

In force
until 31 December 2028

Legal act
2020 No. 1435
Documents
- 9Y12
Tariff lines
on 4 of 8 lines
Duty suspensionAutonomous tariff suspension Free

Applies to goods from
all countries

In force
until 31 December 2026

Legal act
2020 No. 1435

Tariff lines
on 1 of 8 lines
Duty suspensionAutonomous suspension under end-use Free
Applies to goods from
all countries

In force
until 31 December 2028

Legal act
2020 No. 1435
Documents
- N990 EUS - Authorisation for the use of end use procedure (Column 8c, Annex A of Delegated Regulation (EU) 2015/2446)
Tariff lines
on 1 of 8 lines

Import requirements 3

Prohibition or restrictionImport prohibition

Applies to goods from
North Korea

Legal act
S.I. 2019/411

Tariff lines
on 6 of 8 lines
Import controlRestriction on entry into free circulation
Applies to goods from
Syria, Ukraine

Legal act
S.I. 2022/395, S.I. 2019/792
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
Documents
- Y966 Goods other than those described in the MG footnotes linked to the measure (Missile Technology Control Regime list - Annex III of Reg. (EU) 267/2012)
- Y920 Goods other than those described in the footnotes linked to the measure
Tariff lines
on 6 of 8 lines

Preferential rates by country

Agreement or scheme	Countries	Rate
standard rate (no agreement)	—	Free – 6%
DCTS Comprehensive	Afghanistan, Angola, Bangladesh, Benin and 38 more Afghanistan, 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")	Austria, Belgium, Bulgaria, Croatia and 23 more Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden	Free
DCTS Enhanced	Algeria, Bolivia, Cape Verde, Congo - Brazzaville and 13 more Algeria, 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 more Antigua & 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 more Anguilla, 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
DCTS Standard	Indonesia	Free – 2.5%
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

UK: imports by month

last 12 months£11m-17.4% · previous 12 months

Average import price£4.11 per kg

Data up to August 2026 (provisional) · Monthly data: Eurostat Comext (CC BY 4.0), HMRC (OGL v3.0)

Main suppliers, last 12 months

Country	Value	Share	Change
China	£4.3m	39.5%	-17.3%
Switzerland	£3.6m	32.6%	+40.5%
Japan	£1.4m	12.8%	-38.5%
United States	£714k	6.5%	-46.5%
India	£544k	5%	-31.2%
Poland	£188k	1.7%	—
Italy	£67k	0.6%	+109.5%
Belgium	£67k	0.6%	-91.6%

Same subheading in other tariffs

EU Free – 6.5% Third-country duty 2 tariff lines · average 3.3%

Türkiye Free – 6.5% Third-country duty 4 tariff lines · average 4.9%

USA Free – 6.5% General (MFN) 7 tariff lines · average 4.5%

World trade in 2024

2921.59 · US$599m

Trade value (US$) no reported trade < US$133kUS$133k+US$4m+US$26m+> US$99m

Exports: 69

China: US$157m
Japan: US$99m
India: US$84m
Germany: US$62m
Switzerland: US$40m
Saudi Arabia: US$31m
United States: US$26m
Belgium: US$20m
Norway: US$12m
Italy: US$10m
Netherlands: US$9m
Taiwan: US$8m
Sweden: US$7m
Denmark: US$5m
Ireland: US$4m
Singapore: US$4m
France: US$3m
South Korea: US$3m
Thailand: US$3m
Canada: US$3m
United Kingdom: US$2m
Australia: US$1m
Spain: US$1m
Austria: US$1m
United Arab Emirates: US$387k
Eswatini: US$296k
Ukraine: US$255k
Poland: US$242k
Hong Kong SAR China: US$179k
Malaysia: US$170k
Costa Rica: US$147k
Türkiye: US$133k
Greece: US$123k
Czechia: US$104k
Brazil: US$104k
Mexico: US$100k
Colombia: US$95k
Latvia: US$72k
South Africa: US$68k
Lithuania: US$48k
Russia: US$42k
Slovakia: US$26k
Chile: US$20k
Hungary: US$19k
Romania: US$16k
Portugal: US$14k
Slovenia: US$12k
Kazakhstan: US$11k
Armenia: US$6k
Guatemala: US$5k
Estonia: US$4k
New Zealand: US$4k
Finland: US$2k
Indonesia: US$1k
Jordan: US$700
Israel: US$500
Kenya: US$400
Brunei: US$300
Croatia: US$300
North Macedonia: US$300

Top exporters

Rank	Country	Value	Share
1	China	US$157m	26.2%
2	Japan	US$99m	16.6%
3	India	US$84m	14.1%
4	Germany	US$62m	10.4%
5	Switzerland	US$40m	6.7%
6	Saudi Arabia	US$31m	5.3%
7	United States	US$26m	4.4%
8	Belgium	US$20m	3.3%
9	Norway	US$12m	2%
10	Italy	US$10m	1.6%

Top importers

Rank	Country	Value	Share
1	United States	US$93m	15.6%
2	China	US$55m	9.2%
3	Germany	US$51m	8.6%
4	Belgium	US$46m	7.7%
5	South Korea	US$37m	6.1%
6	Japan	US$34m	5.7%
7	India	US$26m	4.3%
8	Brazil	US$25m	4.1%
9	Thailand	US$23m	3.8%
10	Netherlands	US$20m	3.4%

Binding rulings for similar goods 2

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.

N300798 U.S. CBP 17 October 2018 · 2921.59.40.00

The tariff classification of Various Chemical Compounds from China and/or Canada
600009378 HMRC 15 December 2023 – 14 December 2026 · 2921 59 90 90

S-Triaminotrinitrebenzene Form: powdered crystals Packaging: 1500kg jumbo bags

The UK Global Tariff divides subheading 2921.59 into 8 tariff lines; the duty is between 0% and 6% (average 3.8%). 3 of them are duty-free.

In the EU Combined Nomenclature, subheading 2921.59 covers 2 tariff lines and the duty is between 0% and 6.5%. 1 of them is duty-free.

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 Free – 6%.

In the UK, additional duty of 35% applies on top of the customs duty to goods from Belarus and Russia.

Imports of these goods into the UK came to £11m between September 2025 and August 2026 (down 17% on the year before); China supplied 40%, followed by Switzerland.

In 2024, countries exported these goods worth US$599m (+6.6% year on year).

The largest exporter was China (US$157m), followed by Japan.

Questions and answers

What is the HS code for aromatic polyamines and their derivatives; salts thereof: other?

Aromatic polyamines and their derivatives; salts thereof: other fall under HS subheading 2921.59, part of heading 2921, in section VI of the Harmonized System.

What is the import duty on aromatic polyamines and their derivatives in the UK?

Under the UK Global Tariff, imports under 2921.59 from countries without a preferential agreement are charged at 0% to 6%, depending on the line. Preferential rates, anti-dumping duties and VAT are not included.

What is the import duty on aromatic polyamines and their derivatives in the EU?

Under the EU Combined Nomenclature, imports under 2921.59 from countries without a preferential agreement are charged at 0% to 6.5%, depending on the line. Preferential rates, anti-dumping duties and VAT are not included.

Which country exports the most aromatic polyamines and their derivatives?

China, with US$157m in 2024 (26.2% of world exports).

Which countries can export these goods to the UK duty-free?

173 countries pay no duty under a trade agreement or preference scheme, among them partners under DCTS Comprehensive, European Union, DCTS Enhanced. The goods must meet the agreement’s rules of origin and the importer needs proof of origin; otherwise the standard rate of Free – 6% applies. Pick a country above to see its rate.

Is there anti-dumping duty on these goods?

The UK charges additional duty of 35% on goods from Belarus and Russia. Lower rates apply to the named exporters listed in the measure.

Where does the UK import these goods from?

In the 12 months to August 2026, the largest suppliers were China (40%), Switzerland (33%) and Japan (13%), out of total imports of £11m.