Subheading · Chapter 38 · Heading 3827
3827.51: Containing trifluoromethane: containing trifluoromethane (HFC-23)
Official description Containing trifluoromethane (HFC-23)
Subheading 3827.51 belongs to heading 3827 (mixtures containing halogenated derivatives of methane, ethane or propane) in chapter 38.
What you pay
Importing into UK
Rates by national line · UK Global Tariff
UK lines →- 3827 51 00 00 Containing trifluoromethane (hfc-23) 6%
- 3827 51 00 10 R508a (containing 61% of hexafluoroethane (perfluoroethane) (pfc-116) and 39% of trifluoromethane (fluoroform) (hfc-23)) 6%
- 3827 51 00 20 R508b (containing 54% of hexafluoroethane (perfluoroethane) (pfc-116) and 46% of trifluoromethane (fluoroform) (hfc-23)) 6%
- 3827 51 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.
Import requirements 2
- Import controlRestriction on entry into free circulation
- Applies to goods from
- Ukraine
- Legal act
- S.I. 2022/395
- Documents
- 9009
- 9010
- 9017
- Import controlImport control of fluorinated greenhouse gases
- Applies to goods from
- all countries
- Legal act
- 517/2014
- Documents
- Y054 Goods labelled according to the provisions of Article 12 of Regulation (EU) 2024/573
- Y053
- Y955 Goods other than those falling under the import prohibitions defined in article 4.6 of Regulation (EU) 2024/573
- Y986 Exemption from import prohibition according to Article 11.1 and 11.2 of Regulation (EU) 2024/573
- Y926
- 9066
- Y120 Undertaking importing less than 10 tonnes of CO₂ equivalent of hydrofluorocarbons, per year, contained in equipment or products, exempted from the provisions of Article 19 of Regulation (EU) 2024/573 (Article 19.6 of Regulation (EU) 2024/573)
- Y125 Import falling under Article 16.1 of Regulation (EU) N° 2024/573 on the reduction of the quantity of hydrofluorocarbons placed on the EU market
- Y951 Exemption from the reduction of the quantity of hydrofluorocarbons placed on the market by virtue of Article 16.2 (a), (b), (d), (e) of Regulation (EU) 2024/573
- Y956
- Y123 Undertaking registered in the F-Gas Portal according to Article 20 of Regulation (EU) 2024/573
- Y124
- Y976
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 |
| 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 |
|---|---|---|---|
 Malaysia | £7k | 44.3% | +122% |
| United Kingdom | £6k | 33.3% | +251.3% |
 Japan | £4k | 22.4% | -71.8% |
 United States | £0 | 0% | -100% |
Same subheading in other tariffs
EU
TürkiyeWorld trade in 2024
Trade value (US$) no reported trade < US$87.2kUS$87.2k+US$267.5k+US$460.4k+> US$980.9k
Exports: 25
- United States: US$980.9k
- United Kingdom: US$506.7k
- China: US$460.4k
- Germany: US$417.6k
- Netherlands: US$382.8k
- Japan: US$302.9k
- Greece: US$267.5k
- Belgium: US$236.8k
- France: US$204k
- Ireland: US$188k
- Czechia: US$158.4k
- Spain: US$141.1k
- Poland: US$87.2k
- Italy: US$50.8k
- South Africa: US$37.9k
- United Arab Emirates: US$28.4k
- Denmark: US$27.3k
- Türkiye: US$24.5k
- Singapore: US$14.4k
- South Korea: US$6.5k
- Malaysia: US$4.9k
- Lithuania: US$3.8k
- Austria: US$3.6k
- Sweden: US$2.6k
- Portugal: US$1.6k
Trade value (US$) no reported trade < US$16.9kUS$16.9k+US$90.5k+US$229k+> US$466.6k
Imports: 64
- France: US$564.7k
- China: US$466.6k
- Germany: US$376.9k
- Italy: US$336.5k
- Netherlands: US$319.2k
- Japan: US$295k
- Malaysia: US$229k
- Czechia: US$220.3k
- Türkiye: US$169.5k
- Austria: US$155.3k
- Israel: US$113.1k
- Denmark: US$107.8k
- Mexico: US$107.7k
- Brazil: US$96.8k
- Romania: US$91.8k
- Nicaragua: US$90.5k
- Spain: US$79.2k
- Taiwan: US$67.6k
- Canada: US$65k
- India: US$51.2k
- Australia: US$49.1k
- Portugal: US$44.3k
- Switzerland: US$42.2k
- Seychelles: US$38.4k
- Zambia: US$35.6k
- Belgium: US$28.9k
- Saudi Arabia: US$28.1k
- Philippines: US$27.9k
- Slovakia: US$26k
- Luxembourg: US$18.3k
- Morocco: US$16.9k
- Singapore: US$16.9k
- South Africa: US$16k
- United Kingdom: US$13.8k
- Hungary: US$12.2k
- Angola: US$10.3k
- United States: US$8.7k
- Poland: US$8.3k
- Colombia: US$8.1k
- Greece: US$7.9k
- Sweden: US$7.4k
- Trinidad & Tobago: US$6.8k
- Indonesia: US$6.3k
- Nigeria: US$6.2k
- Bulgaria: US$6.1k
- Serbia: US$5.9k
- Honduras: US$5.6k
- Ukraine: US$5.6k
- Argentina: US$4.8k
- Paraguay: US$4.3k
- Norway: US$3.5k
- Bosnia & Herzegovina: US$2.4k
- Peru: US$2.2k
- Finland: US$1.9k
- Latvia: US$1.9k
- Iran: US$1.8k
- Lithuania: US$1.1k
- Azerbaijan: US$1k
- Kyrgyzstan: US$700
- Senegal: US$600
Top exporters
| Rank | Country | Value | Share |
|---|---|---|---|
| 1 | United States | US$980.9k | 21.6% |
| 2 | United Kingdom | US$506.7k | 11.2% |
| 3 |  China | US$460.4k | 10.1% |
| 4 |  Germany | US$417.6k | 9.2% |
| 5 |  Netherlands | US$382.8k | 8.4% |
| 6 | Japan | US$302.9k | 6.7% |
| 7 |  Greece | US$267.5k | 5.9% |
| 8 |  Belgium | US$236.8k | 5.2% |
| 9 |  France | US$204k | 4.5% |
| 10 |  Ireland | US$188k | 4.1% |
Code history
Since 2022; before, these goods were classified under 3824.78.
The UK Global Tariff divides subheading 3827.51 into 3 tariff lines; the duty is 6%.
Subheading 3827.51 is a single line in the EU Combined Nomenclature, where the duty is 6.5%.
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 6%.
Imports of these goods into the UK came to £16.9k between September 2025 and August 2026 (down 61% on the year before); Malaysia supplied 44%, followed by United Kingdom.
In 2024, countries exported these goods worth US$4.5m (−32.2% year on year).
The largest exporter was the United States (US$980.9k), followed by the United Kingdom.
Questions and answers
What is the HS code for containing trifluoromethane: containing trifluoromethane (HFC-23)?
Containing trifluoromethane: containing trifluoromethane (HFC-23) fall under HS subheading 3827.51, part of heading 3827, in section VI of the Harmonized System.
What is the import duty on containing trifluoromethane in the UK?
Under the UK Global Tariff, imports under 3827.51 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 containing trifluoromethane in the EU?
Under the EU Combined Nomenclature, imports under 3827.51 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 containing trifluoromethane?
The United States, with US$980.9k in 2024 (21.6% 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 6% applies. Pick a country above to see its rate.
Where does the UK import these goods from?
In the 12 months to August 2026, the largest suppliers were Malaysia (44%), United Kingdom (33%) and Japan (22%), out of total imports of £16.9k.