Subheading · Chapter 29 · Heading 2929
2929.10: Compounds with other nitrogen function: isocyanates
Isocyanates
Official description Isocyanates
2929.10 is the HS subheading for isocyanates, under heading 2929 in chapter 29.
What you pay
Importing into UK
Rates by national line · UK Global Tariff
UK lines →- 2929 10 00 00 Isocyanates 6%
- 2929 10 00 20 Butyl isocyanate (cas rn 111-36-4) 6%
- 2929 10 00 35 1.3-bis(isocyanatomethyl)benzene (cas rn 3634-83-1) with a purity by weight of 99% or more 6%
- 2929 10 00 40 M-isopropenyl-α,α-dimethylbenzyl isocyanate (cas rn 2094-99-7) 6%
- 2929 10 00 45 2.5 (and 2.6)-bis(isocyanatomethyl)bicyclo[2.2.1]heptane (cas rn 74091-64-8) with a purity by weight of 99% or more 6%
- 2929 10 00 50 M-phenylenediisopropylidene diisocyanate (cas rn 2778-42-9) 6%
- 2929 10 00 60 Trimethylhexamethylene diisocyanate, mixed isomers 6%
- 2929 10 00 65 Ethyl isocyanate (cas rn 109-90-0) with a purity by weight of 98% or more 6%
- 2929 10 00 90 Other 6%
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
- Documents
- 9Y12
- Tariff lines
- on 5 of 8 lines
- 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
- Ukraine
- Legal act
- S.I. 2022/395
- Documents
- 9009
- 9010
- 9017
- Import control
- Applies to goods from
- Iran
- Legal act
- 2023 No.1314
- Documents
- 9011
- 9022
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% |
UK: imports by month
Main suppliers, last 12 months
| Country | Value | Share | Change |
|---|---|---|---|
 United States | £13.9m | 28% | +194.4% |
 Germany | £9.8m | 19.7% | -35.2% |
 China | £6.7m | 13.4% | +16% |
 Netherlands | £5.8m | 11.6% | +63.5% |
 Hungary | £4.1m | 8.3% | +1.6% |
 South Korea | £3.3m | 6.6% | -25.9% |
 Belgium | £2.3m | 4.6% | -13.3% |
 Saudi Arabia | £1.1m | 2.3% | -10.5% |
Same subheading in other tariffs
TürkiyeWorld trade in 2024
Trade value (US$) no reported trade < US$538.8kUS$538.8k+US$5.7m+US$168m+> US$683.5m
Exports: 90
- China: US$1.2bn
- South Korea: US$842.6m
- Germany: US$683.5m
- Hungary: US$650.2m
- Japan: US$475.2m
- United States: US$451.1m
- Belgium: US$298.6m
- Saudi Arabia: US$290m
- Netherlands: US$168m
- France: US$63.8m
- Spain: US$48.8m
- Türkiye: US$30.4m
- Thailand: US$20.2m
- Italy: US$17.8m
- Taiwan: US$16.5m
- Poland: US$14.6m
- United Arab Emirates: US$10.4m
- India: US$9.9m
- United Kingdom: US$7.8m
- Czechia: US$7.3m
- Singapore: US$7.2m
- South Africa: US$6.3m
- Hong Kong SAR China: US$5.7m
- Brazil: US$4.4m
- Sweden: US$3.6m
- Portugal: US$3.1m
- Panama: US$3m
- Malaysia: US$2.7m
- Switzerland: US$2.7m
- Canada: US$2.6m
- Indonesia: US$2.3m
- Mexico: US$2m
- Argentina: US$2m
- British Virgin Islands: US$1.7m
- Egypt: US$1.7m
- Estonia: US$1.5m
- Lithuania: US$1.5m
- Kazakhstan: US$1.4m
- Austria: US$1.3m
- Russia: US$1.2m
- Vietnam: US$791.9k
- Slovakia: US$767.7k
- Denmark: US$741.6k
- Bosnia & Herzegovina: US$674.8k
- Guatemala: US$538.8k
- Australia: US$536k
- Morocco: US$337.8k
- Slovenia: US$320.1k
- Mozambique: US$314.1k
- Bulgaria: US$313.2k
- Greece: US$297.4k
- Malta: US$261.5k
- Chile: US$260k
- North Korea: US$250.8k
- Colombia: US$238.6k
- Georgia: US$235.5k
- Ukraine: US$228.2k
- Kenya: US$215.6k
- Lebanon: US$209.7k
- Eswatini: US$204.1k
Trade value (US$) no reported trade < US$5mUS$5m+US$25.3m+US$81.9m+> US$246.8m
Imports: 181
- China: US$348.7m
- India: US$325.1m
- Belgium: US$312.8m
- Türkiye: US$276.9m
- Brazil: US$274.5m
- Italy: US$246.8m
- Vietnam: US$224m
- Germany: US$208.1m
- United States: US$194.6m
- Taiwan: US$163.9m
- Poland: US$148.1m
- Indonesia: US$146m
- Russia: US$141.1m
- Mexico: US$126.6m
- Japan: US$116.5m
- Spain: US$107.5m
- United Arab Emirates: US$106.4m
- Thailand: US$81.9m
- Canada: US$79.8m
- Netherlands: US$77.2m
- Nigeria: US$64.3m
- France: US$63.5m
- Portugal: US$59m
- South Korea: US$58.4m
- Pakistan: US$56.7m
- United Kingdom: US$55.8m
- Romania: US$51.6m
- Egypt: US$50m
- Malaysia: US$49.3m
- Algeria: US$49m
- Singapore: US$45.9m
- Morocco: US$44.6m
- Israel: US$44m
- Hungary: US$38.2m
- Colombia: US$36.2m
- Slovenia: US$36.1m
- Philippines: US$35.2m
- Austria: US$34.9m
- Iraq: US$32.7m
- South Africa: US$30.9m
- Peru: US$30.2m
- Kenya: US$29.8m
- Tanzania: US$28.1m
- Switzerland: US$26.5m
- Czechia: US$25.3m
- Australia: US$23m
- Uganda: US$20.4m
- Chile: US$17.2m
- Guatemala: US$16m
- Argentina: US$15.8m
- Ecuador: US$15.5m
- Jordan: US$14.9m
- Lithuania: US$13.6m
- Ukraine: US$13.5m
- Dominican Republic: US$13.4m
- Uzbekistan: US$13.4m
- Libya: US$12.9m
- Sweden: US$12.5m
- Greece: US$12.3m
- Kazakhstan: US$12m
Top exporters
| Rank | Country | Value | Share |
|---|---|---|---|
| 1 | China | US$1.2bn | 21.7% |
| 2 | South Korea | US$842.6m | 15.8% |
| 3 | Germany | US$683.5m | 12.8% |
| 4 | Hungary | US$650.2m | 12.2% |
| 5 |  Japan | US$475.2m | 8.9% |
| 6 | United States | US$451.1m | 8.5% |
| 7 | Belgium | US$298.6m | 5.6% |
| 8 | Saudi Arabia | US$290m | 5.4% |
| 9 | Netherlands | US$168m | 3.2% |
| 10 |  France | US$63.8m | 1.2% |
Binding rulings for similar goods 3
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.
- N327235 U.S. CBP
The tariff classification of Octadecyl isocyanate (CAS # 112-96-9) from China
- N321395 U.S. CBP
The tariff classification of Hydrogenated MDI (HMDI), and Isophorone diisocyanate (IPDI) from China
- N307888 U.S. CBP
The tariff classification of 1-3-bis(Isocyanatomethyl) cyclohexane (CAS No. 38661-72-2) from Japan
Recent rule changes mentioning this code
Acts whose text cites this code or its heading. Check the act itself: a code can be cited for reasons other than a change of its duty.
- Tariff change
UK Trade Tariff: measure changes on 1015 commodity codes
Trade Tariff changes 2026-09-29 · Source: trade-tariff.service.gov.uk
- Sanctions · Applies from:
The Iran (Sanctions) (Amendment) Regulations 2026
S.I. 2026/983 · Source: legislation.gov.uk
- Anti-dumping
FR Doc. 2026-12771 · 91 FR 38393 · Source: federalregister.gov
-
Tariff change · Applies from: CELEX 32026R1395 · Source: eur-lex.europa.eu
- Anti-dumping
FR Doc. 2026-07055 · 91 FR 18820 · Source: federalregister.gov
- Sanctions · Applies from:
CELEX 32026R0759 · Source: eur-lex.europa.eu
In the UK Global Tariff, subheading 2929.10 covers 8 tariff lines and the duty is 6%.
The EU Combined Nomenclature has one tariff line for subheading 2929.10; the duty is 6.5%.
Goods from 174 countries can enter the UK at a preferential rate instead of the standard 6%; 173 of them pay no duty at all, for example under DCTS Comprehensive or European Union.
In the UK, additional duty of 35% applies on top of the customs duty to goods from Belarus and Russia.
In the 12 months to August 2026, the UK imported isocyanates worth £49.6m (up 13% on the year before), at an average of £2.11 per kg; United States supplied 28%, followed by Germany.
World trade in isocyanates reached US$5.3bn in 2024, down 10.5% on 2023.
China was the largest exporter with 21.7% of the total, ahead of South Korea.
Questions and answers
What is the HS code for compounds with other nitrogen function: isocyanates?
Compounds with other nitrogen function: isocyanates fall under HS subheading 2929.10, part of heading 2929, in section VI of the Harmonized System.
What is the import duty on compounds with other nitrogen function in the UK?
Under the UK Global Tariff, imports under 2929.10 from countries without a preferential agreement are charged at 6%. Preferential rates, anti-dumping duties and VAT are not included.
What is the import duty on compounds with other nitrogen function in the EU?
Under the EU Combined Nomenclature, imports under 2929.10 from countries without a preferential agreement are charged at 6.5%. Preferential rates, anti-dumping duties and VAT are not included.
Which country exports the most compounds with other nitrogen function?
China, with US$1.2bn in 2024 (21.7% of world exports).
Which countries can export isocyanates 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 6% applies. Pick a country above to see its rate.
Is there anti-dumping duty on isocyanates?
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 isocyanates from?
In the 12 months to August 2026, the largest suppliers were United States (28%), Germany (20%) and China (13%), out of total imports of £49.6m.