Subheading · Chapter 28 · Heading 2850
2850.00: Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849
2850.00 is a six-digit subheading of heading 2850, hydrides, nitrides, azides, silicides and borides, chapter 28.
What you pay
Importing into UK
Rates by national line · UK Global Tariff
UK lines →- 2850 00 20 00 Hydrides; nitrides
- 2850 00 20 10 Silane (cas rn 7803-62-5) 4%
- 2850 00 20 40 Germanium tetrahydride (cas rn 7782-65-2) 4%
- 2850 00 20 60 Disilane (cas rn 1590-87-0) 4%
- 2850 00 20 70 Cubic boron nitride (cas rn 10043-11-5) 4%
- 2850 00 20 80 Arsine (cas rn 7784-42-1) with a purity by volume of 99.999% or more, for use in the production of semiconductors 4%
- 2850 00 20 90 Other 4%
- 2850 00 60 00 Azides; silicides
- Azides
- 2850 00 60 10 Sodium azide (cas rn 26628-22-8) 4%
- 2850 00 60 19 Other 4%
- Silicides
- 2850 00 60 91 Calcium silicon - a chemical compound that contains by weight 16% or more of calcium, 45% or more of silicon, less than 14% of iron and not more than 10% of any other element; whether or not presented in bulk, packaged in bags or in steel drums, enclosed in steel sheets (or cored wire), or otherwise presented 4%
- 2850 00 60 95 Other 4%
- 2850 00 90 00 Borides 4%
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 7 of 11 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)
- Tariff lines
- on 10 of 11 lines
Import requirements 4
- 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, North Korea, Russia
- Legal act
- S.I. 2019/461, S.I. 2019/411, 2020 No. 1665, S.I. 2019/855
- Import controlImport control - Waste
- Applies to goods from
- all countries
- Legal act
- S.I. 2019/590
- Documents
- C672 Information document accompanying shipments of waste as mentioned in Regulation (EU) 2024/1157 – Article 18 and Annex VII
- C669 Notification document as mentioned in Regulation (EU) 2024/1157 - Article 5 and Annex IA
- Y923 Product not subjected to the provisions of Regulation (EU) 2024/1157
- C670 Movement document as mentioned in Regulation (EU) 2024/1157 – Article 5 and Annex IB
Preferential rates by country
| Agreement or scheme | Countries | Rate |
|---|---|---|
| standard rate (no agreement) | — | 4% |
| 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 |
|---|---|---|---|
 United States | £2.6m | 39% | +27.8% |
 China | £2m | 29.9% | -42.6% |
 Germany | £1.3m | 19.7% | -19.5% |
 Japan | £270k | 4% | +106.3% |
 Finland | £196k | 2.9% | +15.7% |
 Ireland | £87k | 1.3% | +757.9% |
 India | £68k | 1% | -47.1% |
 Spain | £60k | 0.9% | -12.5% |
Same subheading in other tariffs
EU 4.6% – 5.5% Third-country duty 3 tariff lines · average 5.1% 
Türkiye 5.3% – 15% Third-country duty 5 tariff lines · average 7.4% USA Free – 5.5% General (MFN) 5 tariff lines · average 3.9% 
Canada Free General (MFN) 1 tariff line 
Mexico Free General (MFN) 1 tariff line 
Brazil Free – 9% General (MFN) 3 tariff lines · average 3% 
Argentina Free – 9% General (MFN) 4 tariff lines · average 2.3% 
Peru Free General (MFN) 3 tariff lines 
New Zealand Free General (MFN) 1 tariff line Japan 3.3% General (MFN) 1 tariff line 
Taiwan 2.5% General (MFN) 4 tariff lines 
GCC 5% General (MFN) 31 tariff lines 
Switzerland Free General (MFN) 1 tariff line 
Norway Free General (MFN) 1 tariff line 
North Macedonia 5% General (MFN) 3 tariff lines 
Nigeria 5% General (MFN) 1 tariff line World trade in 2024
Trade value (US$) no reported trade < US$303kUS$303k+US$4m+US$14m+> US$202m
Exports: 66
- United States: US$223m
- China: US$202m
- Japan: US$71m
- Germany: US$55m
- South Korea: US$46m
- Belgium: US$16m
- Taiwan: US$14m
- Finland: US$12m
- South Africa: US$10m
- India: US$9m
- United Kingdom: US$8m
- Hong Kong SAR China: US$8m
- France: US$8m
- Singapore: US$6m
- Czechia: US$6m
- Sweden: US$4m
- Switzerland: US$4m
- Thailand: US$4m
- Ireland: US$3m
- Italy: US$2m
- Netherlands: US$2m
- Estonia: US$1m
- Peru: US$943k
- Mexico: US$939k
- Malaysia: US$933k
- Austria: US$901k
- Spain: US$559k
- Brazil: US$470k
- Canada: US$344k
- Bahrain: US$328k
- Luxembourg: US$315k
- Norway: US$303k
- Türkiye: US$272k
- Vietnam: US$263k
- Argentina: US$233k
- Slovenia: US$204k
- Dominican Republic: US$187k
- Russia: US$146k
- Israel: US$143k
- Ukraine: US$101k
- Poland: US$89k
- Romania: US$85k
- Denmark: US$80k
- Slovakia: US$68k
- Australia: US$56k
- Lithuania: US$27k
- Indonesia: US$26k
- Serbia: US$13k
- Bulgaria: US$13k
- Cambodia: US$13k
- New Zealand: US$10k
- Colombia: US$10k
- Hungary: US$8k
- Georgia: US$7k
- Latvia: US$2k
- Croatia: US$1k
- Kazakhstan: US$1k
- Kenya: US$1k
- Guatemala: US$900
- Armenia: US$700
Trade value (US$) no reported trade < US$99kUS$99k+US$2m+US$13m+> US$70m
Imports: 139
- South Korea: US$107m
- China: US$95m
- India: US$82m
- Taiwan: US$70m
- Japan: US$49m
- Germany: US$42m
- United States: US$37m
- Singapore: US$29m
- France: US$23m
- Belgium: US$16m
- Thailand: US$13m
- Canada: US$13m
- Ireland: US$13m
- United Kingdom: US$11m
- Sweden: US$11m
- Vietnam: US$10m
- Hong Kong SAR China: US$9m
- Italy: US$8m
- Switzerland: US$8m
- Brazil: US$7m
- Austria: US$7m
- Malaysia: US$7m
- Netherlands: US$6m
- Spain: US$4m
- Chile: US$4m
- Mexico: US$4m
- Türkiye: US$3m
- South Africa: US$3m
- Laos: US$3m
- Czechia: US$3m
- Israel: US$3m
- Australia: US$2m
- Indonesia: US$2m
- Poland: US$2m
- Hungary: US$1m
- Russia: US$1m
- Norway: US$1m
- Slovenia: US$1m
- Luxembourg: US$812k
- Tanzania: US$794k
- Saudi Arabia: US$716k
- Pakistan: US$638k
- Kazakhstan: US$566k
- Finland: US$552k
- Cambodia: US$546k
- Peru: US$531k
- Romania: US$508k
- Philippines: US$406k
- Argentina: US$359k
- Nigeria: US$346k
- New Zealand: US$337k
- Denmark: US$318k
- Egypt: US$297k
- Colombia: US$281k
- Greece: US$256k
- United Arab Emirates: US$251k
- Serbia: US$210k
- Ukraine: US$196k
- Equatorial Guinea: US$195k
- Portugal: US$172k
Top exporters
| Rank | Country | Value | Share |
|---|---|---|---|
| 1 | United States | US$223m | 30.9% |
| 2 | China | US$202m | 27.9% |
| 3 | Japan | US$71m | 9.8% |
| 4 | Germany | US$55m | 7.7% |
| 5 |  South Korea | US$46m | 6.4% |
| 6 |  Belgium | US$16m | 2.3% |
| 7 | Taiwan | US$14m | 2% |
| 8 | Finland | US$12m | 1.7% |
| 9 |  South Africa | US$10m | 1.3% |
| 10 | India | US$9m | 1.2% |
Top importers
| Rank | Country | Value | Share |
|---|---|---|---|
| 1 | South Korea | US$107m | 14.9% |
| 2 | China | US$95m | 13.2% |
| 3 | India | US$82m | 11.4% |
| 4 | Taiwan | US$70m | 9.7% |
| 5 | Japan | US$49m | 6.7% |
| 6 | Germany | US$42m | 5.9% |
| 7 | United States | US$37m | 5.1% |
| 8 |  Singapore | US$29m | 4% |
| 9 |  France | US$23m | 3.1% |
| 10 | Belgium | US$16m | 2.3% |
Import duty on this product around the world 162
The most-favoured-nation (MFN) duty each country applies to goods of this HS subheading: the average over its national tariff lines, with the lowest and highest line where they differ. Goods from countries with a trade agreement often pay less.
- 5%median duty
- 53number of duty-free countries (MFN)
- 45%highest: Bahamas, Bermuda, Cayman Islands
162
| Importing country | MFN duty | lines from – to | data year |
|---|---|---|---|
 Albania | 2% | 2023 | |
 Algeria | 15% | 2023 | |
 Angola | 0% | 2023 · HS 2017 | |
 Anguilla | 10% | 2021 · HS 2017 | |
 Antigua & Barbuda | 5% | 2021 · HS 2007 | |
| Argentina | 4.7% | 2% – 10% | 2023 · HS 2017 |
 Armenia | 5% | 2023 | |
 Aruba | 12% | 2021 · HS 2012 | |
 Australia | 0% | 2023 | |
 Azerbaijan | 0% | 2023 · HS 2017 | |
 Bahamas | 45% | 2022 | |
 Bahrain | 5% | 2023 | |
 Bangladesh | 10% | 2023 · HS 2017 | |
 Barbados | 5% | 2022 · HS 2017 | |
 Belarus | 3.3% | 0% – 5% | 2021 · HS 2017 |
 Belize | 5% | 2023 | |
 Benin | 5% | 2023 | |
 Bermuda | 25% | 2023 | |
 Bhutan | 10% | 2022 | |
 Bolivia | 5% | 2023 · HS 2017 | |
 Bosnia & Herzegovina | 5% | 2022 | |
 Botswana | 0% | 2023 | |
| Brazil | 4.7% | 2% – 10% | 2023 · HS 2017 |
 Brunei | 0% | 2023 · HS 2017 | |
 Burkina Faso | 5% | 2023 | |
 Burundi | 0% | 2023 | |
 Cambodia | 7% | 2023 · HS 2017 | |
 Cameroon | 10% | 2023 | |
| Canada | 0% | 2023 | |
 Cape Verde | 5% | 2023 · HS 2017 | |
 Cayman Islands | 22% | 2021 · HS 2002 | |
 Central African Republic | 10% | 2023 | |
 Chad | 10% | 2023 | |
 Chile | 6% | 2023 · HS 2017 | |
| China | 5.5% | 2023 | |
 Colombia | 0% | 2023 · HS 2017 | |
 Comoros | 20% | 2021 · HS 2017 | |
 Congo - Brazzaville | 10% | 2023 | |
 Cook Islands | 0% | 2022 · HS 2017 | |
 Costa Rica | 0% | 2023 | |
 Côte d’Ivoire | 5% | 2023 · HS 2017 | |
 Cuba | 10% | 2023 · HS 2017 | |
 Dominica | 5% | 2023 · HS 2017 | |
 Dominican Republic | 0% | 2023 | |
 Ecuador | 0% | 2023 · HS 2017 | |
 Egypt | 2% | 2019 · HS 2017 | |
 El Salvador | 0% | 2022 | |
 Equatorial Guinea | 10% | 2023 | |
 Eswatini | 0% | 2023 | |
 Ethiopia | 10% | 2021 · HS 2017 | |
| European Union (27 countries) | 5.1% | 4.6% – 5.5% | 2023 |
 Fiji | 5% | 2023 | |
 French Polynesia | 8% | 2023 | |
 Gabon | 10% | 2023 | |
 Gambia | 5% | 2023 | |
 Georgia | 0% | 2022 · HS 2017 | |
 Ghana | 5% | 2023 | |
 Gibraltar | 9% | 0% – 12% | 2023 · HS 2017 |
 Grenada | 5% | 2023 · HS 2012 | |
 Guatemala | 0% | 2023 | |
 Guinea | 5% | 2023 | |
 Guinea-Bissau | 5% | 2023 | |
 Guyana | 5% | 2023 · HS 2017 | |
 Haiti | 0% | 2020 · HS 2017 | |
 Honduras | 0% | 2023 | |
 Hong Kong SAR China | 0% | 2023 | |
 Iceland | 0% | 2023 | |
| India | 7.5% | 2023 | |
 Indonesia | 5% | 2023 | |
 Iran | 5% | 2020 · HS 2017 | |
 Israel | 0% | 2022 · HS 2017 | |
 Jamaica | 0% | 2023 | |
| Japan | 3.3% | 2023 | |
 Jordan | 0% | 2023 | |
 Kazakhstan | 5% | 2023 | |
 Kenya | 0% | 2023 | |
 Kiribati | 0% | 2023 · HS 2002 | |
 Kuwait | 5% | 2023 | |
 Kyrgyzstan | 3.3% | 0% – 5% | 2021 · HS 2017 |
 Laos | 5% | 2023 · HS 2017 | |
 Lebanon | 5% | 2020 · HS 2017 | |
 Lesotho | 0% | 2023 | |
 Liberia | 5% | 2023 | |
 Libya | 5% | 2021 · HS 2017 | |
 Liechtenstein | 0.3%* | 2021 · HS 2017 | |
 Macao SAR China | 0% | 2023 | |
 Madagascar | 5% | 2023 | |
 Malawi | 0% | 2021 · HS 2017 | |
 Malaysia | 0% | 2023 | |
 Maldives | 15% | 2023 | |
 Mali | 5% | 2023 | |
 Mauritania | 5% | 2023 · HS 2017 | |
 Mauritius | 0% | 2023 | |
| Mexico | 0% | 2023 · HS 2017 | |
 Micronesia | 4% | 2021 · HS 2017 | |
 Moldova | 5.5% | 2023 · HS 2017 | |
 Mongolia | 5% | 2023 | |
 Montserrat | 15% | 2023 · HS 2017 | |
 Morocco | 2.5% | 2023 | |
 Mozambique | 2.5% | 2023 | |
 Myanmar (Burma) | 3% | 2023 · HS 2017 | |
 Namibia | 0% | 2023 | |
 Nepal | 10% | 2023 | |
| New Zealand | 0% | 2023 | |
 Nicaragua | 0% | 2023 | |
 Niger | 5% | 2023 | |
| Nigeria | 5% | 2023 | |
| North Macedonia | 5% | 2023 | |
| Norway | 0% | 2023 | |
 Oman | 5% | 2023 | |
 Pakistan | 0% | 2023 | |
 Palau | 3% | 2023 · HS 2012 | |
 Palestinian Territories | 0% | 2017 · HS 2017 | |
 Panama | 0% | 2023 | |
 Papua New Guinea | 0% | 2023 | |
 Paraguay | 4.7% | 2% – 10% | 2023 · HS 2017 |
| Peru | 0% | 2023 · HS 2017 | |
 Philippines | 3% | 2023 | |
 Qatar | 5% | 2023 | |
 Russia | 3.3% | 0% – 5% | 2021 · HS 2017 |
 Rwanda | 0% | 2023 | |
 Samoa | 8% | 2020 · HS 2017 | |
 São Tomé & Príncipe | 10% | 2019 · HS 2017 | |
 Saudi Arabia | 5% | 5% – 5.5% | 2023 |
 Senegal | 5% | 2023 | |
 Seychelles | 0% | 2023 | |
 Sierra Leone | 5% | 2023 | |
| Singapore | 0% | 2023 · HS 2017 | |
 Solomon Islands | 10% | 2023 · HS 2017 | |
 Somalia | 5% | 2023 · HS 2017 | |
| South Africa | 0% | 2023 | |
| South Korea | 5.5% | 2023 | |
 St Kitts & Nevis | 5% | 2023 | |
 St Lucia | 5% | 2023 · HS 2012 | |
 St Pierre & Miquelon | 8% | 2021 · HS 2017 | |
 St Vincent & the Grenadines | 5% | 2023 | |
 Sudan | 3% | 2021 · HS 2017 | |
 Suriname | 5% | 2023 · HS 2007 | |
| Switzerland | 0.2%* | 2023 | |
 Syria | 1% | 2020 · HS 2012 | |
 Tajikistan | 5.5% | 2021 · HS 2012 | |
 Tanzania | 0% | 2023 | |
 Thailand | 0% | 2023 | |
 Togo | 5% | 2023 | |
 Tonga | 15% | 2023 · HS 2017 | |
 Trinidad & Tobago | 0% | 2023 · HS 2012 | |
| Türkiye | 5.2% | 4.6% – 5.5% | 2023 |
 Tuvalu | 0% | 2017 · HS 2017 | |
 Uganda | 0% | 2023 | |
 Ukraine | 5% | 2023 · HS 2017 | |
 United Arab Emirates | 5% | 2023 | |
| United Kingdom | 4% | 2023 | |
| United States | 3.9% | 0% – 5.5% | 2023 |
 Uruguay | 4.7% | 2% – 10% | 2023 · HS 2017 |
 Uzbekistan | 0% | 2021 · HS 2017 | |
 Vanuatu | 0% | 2023 | |
 Venezuela | 3.6% | 2% – 10% | 2023 · HS 2017 |
 Vietnam | 0% | 2023 | |
 Wallis & Futuna | 6% | 2021 · HS 2012 | |
 Yemen | 5% | 2017 · HS 2017 | |
 Zambia | 0% | 2023 | |
 Zimbabwe | 0.1% | 2023 |
Tariff data years 2017–2023; rates may have changed since. * ad valorem equivalent of specific duties (UNCTAD estimate) · UNCTAD TRAINS, accessed via WITS (World Bank)
Classifications and correspondences
Where this HS subheading sits in the United Nations' statistical classifications, and which codes it had in earlier editions of the Harmonized System.
- SITC Rev. 4
- 52495 Hydrides, nitrides, azides, silicides & borides, whether/not chemically defined
- End use (BEC Rev. 5)
- Intermediate goods · BEC 211220
- CPC 2.1 product
- 34280 Hydrogen peroxide; phosphides; carbides; hydrides, nitrides, azides, silicides and borides
- ISIC Rev. 4 activity
- 2011 Manufacture of basic chemicals
Earlier HS editions
| HS | Code | |
|---|---|---|
| 2017 | 2850.00 | unchanged |
| 2012 | 2850.00 | unchanged |
| 2007 | 2850.00 | changed |
| 2002 | 2850.00 | changed |
| 1996 | 2850.00 | changed |
| 1992 | 2850.00 | changed |
Correspondence tables of the United Nations Statistics Division (UNSD)
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.
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.
- Import and export controls
FR Doc. 2026-14542 · 91 FR 45516 · Source: federalregister.gov
- Tariff change
İthalat Rejimi Kararında Değişiklik Yapılmasına İlişkin Karar (Karar Sayısı: 11506)
RG 11.07.2026 sayı 33307 · Karar 11506 · Source: resmigazete.gov.tr
- Classification
RG 11.07.2026 sayı 33307 · Karar 11507 · Source: resmigazete.gov.tr
- Tariff change · Applies from:
CELEX 32026R1395 · Source: eur-lex.europa.eu
- Anti-dumping
FR Doc. 2026-04483 · 91 FR 11037 · Source: federalregister.gov
- Sanctions · Applies from:
CELEX 32026R0271 · Source: eur-lex.europa.eu
In the UK Global Tariff, subheading 2850.00 covers 11 tariff lines and the duty is 4%.
The EU Combined Nomenclature divides subheading 2850.00 into 3 tariff lines; the duty is between 4.6% and 5.5% (average 5.1%).
Goods from 174 countries can enter the UK at a preferential rate instead of the standard 4%; 174 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 these goods worth £6.7m (down 15% on the year before), at an average of £16.44 per kg; United States supplied 39%, followed by China.
World trade in these goods reached US$723m in 2024, down 1.1% on 2023.
The United States was the largest exporter with 30.9% of the total, ahead of China.
Questions and answers
What is the HS code for hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849?
Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849 fall under HS subheading 2850.00, part of heading 2850, in section VI of the Harmonized System.
What is the import duty on hydrides, nitrides, azides, silicides and borides in the UK?
Under the UK Global Tariff, imports under 2850.00 from countries without a preferential agreement are charged at 4%. Preferential rates, anti-dumping duties and VAT are not included.
What is the import duty on hydrides, nitrides, azides, silicides and borides in the EU?
Under the EU Combined Nomenclature, imports under 2850.00 from countries without a preferential agreement are charged at 4.6% to 5.5%, depending on the line. Preferential rates, anti-dumping duties and VAT are not included.
Which country exports the most hydrides, nitrides, azides, silicides and borides?
The United States, with US$223m in 2024 (30.9% of world exports).
Which countries can export these goods 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 4% 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 United States (39%), China (30%) and Germany (20%), out of total imports of £6.7m.