Subheading · Chapter 29 · Heading 2933
2933.29: Compounds containing an unfused imidazole ring: other
Other imidazole compounds
Official description Other
2933.29 is the HS subheading for other imidazole compounds, under heading 2933 in chapter 29.
What you pay
Importing into UK
Rates by national line · UK Global Tariff
UK lines →- 2933 29 00 00 Other
- 2933 29 10 00 Naphazoline hydrochloride (innm) and naphazoline nitrate (innm); phentolamine (inn); tolazoline hydrochloride (innm) Free
- 2933 29 90 00 Other
- 2933 29 90 15 Ethyl 4-(1-hydroxy-1-methylethyl)-2-propylimidazole-5-carboxylate (cas rn 144689-93-0) Free
- 2933 29 90 20 Tert-butyl (2s)-2-(5-bromo-1h-imidazol-2-yl)pyrrolidine-1-carboxylate (cas rn 1007882-59-8) with a purity by weight of 98% or more Free
- 2933 29 90 38 Cyazofamid (iso) (cas rn 120116-88-3) with a purity by weight of 94% or more Free
- 2933 29 90 43 2-octyl-4.5-dihydro-1h-imidazole (cas rn 10443-60-4) with a purity by weight of 95% or more Free
- 2933 29 90 60 1-cyano-2-methyl-1-[2-(5-methylimidazol-4-ylmethylthio)ethyl]isothiourea (cas rn 52378-40-2) Free
- 2933 29 90 75 2.2'-azobis[2-(2-imidazolin-2-yl)propane] dihydrochloride (cas rn 27776-21-2) Free
- 2933 29 90 80 Imazalil (iso) (cas rn 35554-44-0) Free
- 2933 29 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 3
- 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 suspensionAirworthiness tariff suspension Free
- Applies to goods from
- all countries
- Legal act
- S.I. 2018/1249
- Documents
- C119 Authorised Release Certificate — EASA Form 1 (Appendix I to Annex I to Regulation (EU) No 748/2012), or equivalent certificate
Import requirements 3
- Prohibition or restrictionImport prohibition
- Applies to goods from
- North Korea
- Legal act
- S.I. 2019/411
- Tariff lines
- on 8 of 9 lines
- Import controlRestriction on entry into free circulation
- Applies to goods from
- Russia, Syria, Ukraine
- Legal act
- 2023 No. 440, S.I. 2022/395, S.I. 2019/792
- Documents
- 9011
- 9022
- 9038
- 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 8 of 9 lines
Preferential rates by country
| Agreement or scheme | Countries | Rate |
|---|---|---|
| standard rate (no agreement) | — | Free |
| 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 |
| DCTS Standard | Indonesia | 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 |
UK: imports by month
Main suppliers, last 12 months
| Country | Value | Share | Change |
|---|---|---|---|
 France | £43.1m | 44.3% | -48.8% |
 India | £32.4m | 33.3% | +663.3% |
 United States | £8.6m | 8.8% | -46.4% |
 China | £3.1m | 3.2% | +132.6% |
 Singapore | £1.9m | 2% | -94.9% |
 Indonesia | £1.8m | 1.8% | -2.3% |
 South Korea | £1.7m | 1.8% | +202.2% |
 Germany | £1.6m | 1.6% | -15% |
Same subheading in other tariffs
EU
TürkiyeWorld trade in 2024
Trade value (US$) no reported trade < US$302.2kUS$302.2k+US$8.9m+US$36.3m+> US$224.7m
Exports: 96
- China: US$444.2m
- France: US$225.8m
- India: US$224.7m
- Italy: US$150.9m
- Germany: US$139.5m
- United States: US$131m
- Switzerland: US$94m
- Japan: US$41.7m
- South Korea: US$36.3m
- Singapore: US$27.6m
- Spain: US$26.2m
- Belgium: US$25.4m
- Hungary: US$22.9m
- Slovenia: US$21.6m
- Indonesia: US$20m
- Thailand: US$17.6m
- Austria: US$16.8m
- Netherlands: US$14.8m
- United Kingdom: US$10.5m
- Ireland: US$9m
- Finland: US$9m
- Taiwan: US$8.9m
- Sweden: US$7.6m
- Czechia: US$6.8m
- Mexico: US$6.5m
- Latvia: US$6m
- Brazil: US$5.1m
- Israel: US$2.3m
- Poland: US$2m
- Norway: US$1.9m
- Saudi Arabia: US$1.6m
- Canada: US$1.6m
- Portugal: US$1.3m
- Hong Kong SAR China: US$859.9k
- Türkiye: US$814k
- Argentina: US$758.8k
- Ukraine: US$555.8k
- Guatemala: US$524.6k
- Australia: US$507.9k
- Pakistan: US$437.6k
- Bangladesh: US$423.5k
- Greece: US$311.2k
- Chile: US$302.2k
- Belize: US$266.3k
- United Arab Emirates: US$226.4k
- South Africa: US$204.9k
- Malaysia: US$201k
- Armenia: US$191.5k
- Denmark: US$178.4k
- Cyprus: US$171k
- Lithuania: US$154.5k
- Jordan: US$149.2k
- Slovakia: US$146.2k
- Russia: US$144.4k
- Colombia: US$117.6k
- Serbia: US$81.7k
- Bulgaria: US$78.6k
- Costa Rica: US$63.8k
- Kenya: US$57.7k
- Egypt: US$55k
Trade value (US$) no reported trade < US$641.1kUS$641.1k+US$5.9m+US$37.9m+> US$87.1m
Imports: 171
- United Kingdom: US$203.8m
- United States: US$115.3m
- Switzerland: US$106.6m
- France: US$91.1m
- China: US$90.2m
- India: US$87.1m
- Canada: US$83.7m
- Germany: US$78.9m
- Japan: US$73.1m
- Brazil: US$55.1m
- South Korea: US$51.1m
- Denmark: US$45.7m
- Belgium: US$44m
- Italy: US$41.7m
- Russia: US$41.4m
- Spain: US$39.2m
- Austria: US$37.9m
- Netherlands: US$29.4m
- Türkiye: US$27.4m
- Mexico: US$25.2m
- Taiwan: US$21.5m
- Bangladesh: US$20.2m
- Egypt: US$20.1m
- Slovenia: US$19.6m
- Algeria: US$18.2m
- Portugal: US$16.8m
- Poland: US$16.3m
- Pakistan: US$16m
- Ireland: US$13.8m
- United Arab Emirates: US$13.5m
- Indonesia: US$12.9m
- Argentina: US$12.3m
- Colombia: US$11.3m
- Vietnam: US$11.1m
- Chile: US$11m
- Norway: US$10.8m
- Thailand: US$10.7m
- Singapore: US$7.8m
- Sweden: US$7.5m
- Israel: US$7.4m
- Australia: US$6.6m
- Kenya: US$5.9m
- Czechia: US$5.9m
- Philippines: US$5.8m
- Ecuador: US$5.6m
- Greece: US$5.4m
- Nigeria: US$4.9m
- Hungary: US$4.8m
- Saudi Arabia: US$4.6m
- Morocco: US$4.4m
- South Africa: US$4.3m
- Croatia: US$3.9m
- Malaysia: US$3.9m
- Hong Kong SAR China: US$3.4m
- Iran: US$3.3m
- Peru: US$2.9m
- Ukraine: US$2.6m
- Ghana: US$2.4m
- Jordan: US$2.3m
- New Zealand: US$1.7m
Top exporters
| Rank | Country | Value | Share |
|---|---|---|---|
| 1 | China | US$444.2m | 25.1% |
| 2 | France | US$225.8m | 12.8% |
| 3 | India | US$224.7m | 12.7% |
| 4 |  Italy | US$150.9m | 8.5% |
| 5 | Germany | US$139.5m | 7.9% |
| 6 | United States | US$131m | 7.4% |
| 7 |  Switzerland | US$94m | 5.3% |
| 8 |  Japan | US$41.7m | 2.4% |
| 9 | South Korea | US$36.3m | 2% |
| 10 | Singapore | US$27.6m | 1.6% |
Top importers
| Rank | Country | Value | Share |
|---|---|---|---|
| 1 | United Kingdom | US$203.8m | 11.5% |
| 2 | United States | US$115.3m | 6.5% |
| 3 | Switzerland | US$106.6m | 6% |
| 4 | France | US$91.1m | 5.1% |
| 5 | China | US$90.2m | 5.1% |
| 6 | India | US$87.1m | 4.9% |
| 7 |  Canada | US$83.7m | 4.7% |
| 8 | Germany | US$78.9m | 4.5% |
| 9 | Japan | US$73.1m | 4.1% |
| 10 |  Brazil | US$55.1m | 3.1% |
Binding rulings for similar goods 12
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.
- N360778 U.S. CBP
The tariff classification of Secnidazole (CAS No. 3366-95-8) imported in bulk powder form, from Italy
- N326268 U.S. CBP
The tariff classification of Dexmedetomidine Hydrochloride (CAS No.145108-58-3) in bulk powder form, from Spain
- N321273 U.S. CBP
The tariff classification of Oxymetazoline Base (CAS No. 1491-59-4) in bulk powder form, from Brazil
- N319732 U.S. CBP
The tariff classification of "Preventhelia® Peptide Solution" from Spain
- N312874 U.S. CBP
The tariff classification of Oxymetazoline Hydrochloride (CAS No. 2315-02-8) in bulk powder form, from Brazil
- N311950 U.S. CBP
The tariff classification of Lofexidine Hydrochloride (CAS No. 21498-08-8) in bulk powder form, from Italy
12 rulings in total for this code
The UK Global Tariff divides subheading 2933.29 into 9 tariff lines; the duty is duty-free.
In the EU Combined Nomenclature, subheading 2933.29 covers 2 tariff lines and the duty is between 0% and 6.5%. 1 of them is duty-free.
174 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.
In the UK, additional duty of 35% applies on top of the customs duty to goods from Belarus and Russia.
Imports of other imidazole compounds into the UK came to £97.3m between September 2025 and August 2026 (down 36% on the year before); France supplied 44%, followed by India.
In 2024, countries exported other imidazole compounds worth US$1.8bn (−2.7% year on year).
The largest exporter was China (US$444.2m), followed by France.
Questions and answers
What is the HS code for compounds containing an unfused imidazole ring: other?
Compounds containing an unfused imidazole ring: other fall under HS subheading 2933.29, part of heading 2933, in section VI of the Harmonized System.
What is the import duty on compounds containing an unfused imidazole ring in the UK?
Under the UK Global Tariff, imports under 2933.29 from countries without a preferential agreement are free of duty. Preferential rates, anti-dumping duties and VAT are not included.
What is the import duty on compounds containing an unfused imidazole ring in the EU?
Under the EU Combined Nomenclature, imports under 2933.29 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 compounds containing an unfused imidazole ring?
China, with US$444.2m in 2024 (25.1% of world exports).
Which countries can export other imidazole compounds to the UK duty-free?
174 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 applies. Pick a country above to see its rate.
Is there anti-dumping duty on other imidazole compounds?
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 other imidazole compounds from?
In the 12 months to August 2026, the largest suppliers were France (44%), India (33%) and United States (9%), out of total imports of £97.3m.