Subheading · Chapter 38 · Heading 3824

3824.91

3824.91: Mixtures and preparations consisting mainly of (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl methyl methylphosphonate and bis[(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl] methylphosphonate

3824.91 is a six-digit subheading of heading 3824, prepared binders for foundry moulds or cores, chapter 38.

What you pay

Importing into UK

Customs duty 6% standard rate depends on the country of origin
Additional duties and charges 2 additional measures Import requirements: 3
VAT 20.00 % import VAT
Duty calculatorCalculate duty and taxes →

Rates by national line · UK Global Tariff

UK lines →
  1. 3824 91 00 00 Mixtures and preparations consisting mainly of (5-ethyl-2-methyl-2-oxido-1.3,2-dioxaphosphinan-5-yl)methyl methyl methylphosphonate and bis[(5-ethyl-2-methyl-2-oxido-1.3,2-dioxaphosphinan-5-yl)methyl] methylphosphonate 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 2

  • 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

  • Import controlRestriction on entry into free circulation
    Applies to goods from
    Russia, Ukraine
    Legal act
    2023 No. 440, S.I. 2022/395
    Documents
    • 9011
    • 9022
    • 9038
    • 9009
    • 9010
    • 9017
  • Import controlImport control on restricted goods and technologies
    Applies to goods from
    North Korea
    Legal act
    S.I. 2019/411
    Documents
    • Y920 Goods other than those described in the footnotes linked to the measure
  • 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 schemeCountriesRate
standard rate (no agreement)—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
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£743k+13% · previous 12 months
Average import price£7.90 per kg
Jan 2024: £76kFeb 2024: £164kMar 2024: £328kApr 2024: £77kMay 2024: £99kJun 2024: £291kJul 2024: £82kAug 2024: £18kSept 2024: £66kOct 2024: £105kNov 2024: £120kDec 2024: £25kJan 2025: £57kFeb 2025: £40kMar 2025: £37kApr 2025: £75kMay 2025: £26kJun 2025: £40kJul 2025: £37kAug 2025: £31kSept 2025: £70kOct 2025: £67kNov 2025: £36kDec 2025: £43kJan 2026: £38kFeb 2026: £20kMar 2026: £38kApr 2026: £58kMay 2026: £49kJun 2026: £72kJul 2026: £184kAug 2026: £68k 202420252026
Data up to August 2026 (provisional) · Monthly data: Eurostat Comext (CC BY 4.0), HMRC (OGL v3.0)

Main suppliers, last 12 months

CountryValueShareChange
China £242k 32.5% +55.5%
Lebanon £168k 22.5% +51.9%
United States £154k 20.8% +7.2%
France £58k 7.8% -24.3%
Germany £49k 6.6% -5.9%
Malaysia £45k 6.1% +178.4%
Switzerland £6k 0.8% —
Spain £5k 0.7% -88.5%

Same subheading in other tariffs

World trade in 2024

3824.91 · US$199m

Trade value (US$) no reported trade < US$230kUS$230k+US$2m+US$7m+> US$16m

Exports: 89
  1. Ireland: US$22m
  2. United States: US$20m
  3. China: US$16m
  4. Germany: US$16m
  5. Netherlands: US$8m
  6. Japan: US$7m
  7. Belgium: US$7m
  8. France: US$7m
  9. Thailand: US$7m
  10. United Kingdom: US$6m
  11. Italy: US$6m
  12. Spain: US$6m
  13. Malaysia: US$4m
  14. Angola: US$3m
  15. Denmark: US$3m
  16. Colombia: US$3m
  17. Singapore: US$3m
  18. Hong Kong SAR China: US$3m
  19. Israel: US$2m
  20. Canada: US$2m
  21. Austria: US$2m
  22. South Africa: US$2m
  23. Indonesia: US$2m
  24. India: US$2m
  25. Poland: US$2m
  26. United Arab Emirates: US$1m
  27. Hungary: US$1m
  28. Switzerland: US$1m
  29. Sweden: US$1m
  30. Australia: US$942k
  31. Lebanon: US$815k
  32. South Korea: US$778k
  33. Türkiye: US$744k
  34. Zambia: US$735k
  35. Finland: US$705k
  36. Romania: US$517k
  37. Qatar: US$501k
  38. Mexico: US$480k
  39. Taiwan: US$416k
  40. Portugal: US$240k
  41. Russia: US$239k
  42. Jordan: US$231k
  43. Lithuania: US$230k
  44. Czechia: US$210k
  45. Honduras: US$192k
  46. Saudi Arabia: US$180k
  47. Argentina: US$156k
  48. Slovenia: US$138k
  49. Brazil: US$137k
  50. Greece: US$134k
  51. Egypt: US$133k
  52. New Zealand: US$129k
  53. Eswatini: US$125k
  54. Slovakia: US$114k
  55. Luxembourg: US$90k
  56. Norway: US$82k
  57. Vietnam: US$67k
  58. Latvia: US$64k
  59. Kenya: US$60k
  60. Croatia: US$57k

Top exporters

RankCountryValueShare
1 Ireland US$22m 10.9%
2 United States US$20m 9.8%
3 China US$16m 8.1%
4 Germany US$16m 8.1%
5 Netherlands US$8m 3.9%
6 Japan US$7m 3.6%
7 Belgium US$7m 3.6%
8 France US$7m 3.5%
9 Thailand US$7m 3.4%
10 United Kingdom US$6m 3.1%

Top importers

RankCountryValueShare
1 Zambia US$24m 11.8%
2 United States US$16m 7.9%
3 Spain US$10m 5.1%
4 Italy US$10m 5%
5 France US$6m 3.2%
6 Belgium US$6m 3.2%
7 Malaysia US$6m 3.2%
8 Netherlands US$5m 2.7%
9 Germany US$5m 2.5%
10 China US$5m 2.5%

Import duty on this product around the world 152

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
  • 45number of duty-free countries (MFN)
  • 45%highest: Bahamas, Bermuda, Comoros

152

Importing countryMFN dutylines from – todata year
Albania 0% 2023
Algeria 15% 2023
Angola 0% 2023 · HS 2017
Anguilla 15% 2021 · HS 2017
Argentina 14% 2023 · HS 2017
Armenia 5% 2023
Australia 5% 2023
Azerbaijan 5% 2023 · HS 2017
Bahamas 45% 2022
Bahrain 5% 2023
Bangladesh 10% 2023 · HS 2017
Barbados 5% 2022 · HS 2017
Belarus 5% 2021 · HS 2017
Belize 5% 2023
Benin 10% 2023
Bermuda 25% 2023
Bhutan 10% 2022
Bolivia 10% 2023 · HS 2017
Bosnia & Herzegovina 0% 2022
Botswana 0% 2023
Brazil 14% 2023 · HS 2017
Brunei 0% 2023 · HS 2017
Burkina Faso 10% 2023
Burundi 0% 2023
Cambodia 7% 2023 · HS 2017
Cameroon 10% 2023
Canada 0% 2023
Cape Verde 5% 2023 · HS 2017
Central African Republic 10% 2023
Chad 10% 2023
Chile 6% 2023 · HS 2017
China 6.5% 2023
Colombia 5% 2023 · HS 2017
Comoros 20% 2021 · HS 2017
Congo - Brazzaville 10% 2023
Cook Islands 0% 2022 · HS 2017
Costa Rica 9% 2023
Côte d’Ivoire 10% 2023 · HS 2017
Cuba 5% 2023 · HS 2017
Dominica 0% 2023 · HS 2017
Dominican Republic 0% 2023
Ecuador 0% 2023 · HS 2017
Egypt 2% 2019 · HS 2017
El Salvador 10% 2022
Equatorial Guinea 10% 2023
Eswatini 0% 2023
Ethiopia 10% 2021 · HS 2017
European Union (27 countries) 6.5% 2023
Fiji 5% 2023
French Polynesia 8% 2023
Gabon 10% 2023
Gambia 10% 2023
Georgia 0% 2022 · HS 2017
Ghana 10% 2023
Gibraltar 12% 2023 · HS 2017
Guatemala 10% 2023
Guinea 10% 2023
Guinea-Bissau 10% 2023
Guyana 5% 2023 · HS 2017
Haiti 0% 2020 · HS 2017
Honduras 10% 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 1.3% 2023
Jordan 5% 2023
Kazakhstan 5% 2023
Kenya 0% 2023
Kuwait 5% 2023
Kyrgyzstan 5% 2021 · HS 2017
Laos 10% 2023 · HS 2017
Lebanon 5% 2020 · HS 2017
Lesotho 0% 2023
Liberia 10% 2023
Libya 5% 2021 · HS 2017
Liechtenstein 0.9%* 2021 · HS 2017
Macao SAR China 0% 2023
Madagascar 10% 2023
Malawi 0% 2021 · HS 2017
Malaysia 0% 2023
Maldives 15% 2023
Mali 10% 2023
Mauritania 10% 2023 · HS 2017
Mauritius 0% 2023
Mexico 5% 2023 · HS 2017
Micronesia 4% 2021 · HS 2017
Moldova 5% 2023 · HS 2017
Mongolia 5% 2023
Montserrat 15% 2023 · HS 2017
Morocco 2.5% 2023
Mozambique 7.5% 2023
Myanmar (Burma) 3% 2023 · HS 2017
Namibia 0% 2023
Nauru 10% 2021 · HS 2017
Nepal 10% 2023
New Zealand 0% 2023
Nicaragua 10% 2023
Niger 10% 2023
Nigeria 10% 2023
North Macedonia 0% 2023
Norway 0% 2023
Oman 5% 2023
Pakistan 0% 2023
Palestinian Territories 0% 2017 · HS 2017
Panama 6.5% 2023
Papua New Guinea 0% 2023
Paraguay 0% 2023 · HS 2017
Peru 0% 2023 · HS 2017
Philippines 3% 2023
Qatar 5% 2023
Russia 5% 2021 · HS 2017
Rwanda 0% 2023
Samoa 8% 2020 · HS 2017
São Tomé & Príncipe 10% 2019 · HS 2017
Saudi Arabia 5% 2023
Senegal 10% 2023
Seychelles 0% 2023
Sierra Leone 10% 2023
Singapore 0% 2023 · HS 2017
Solomon Islands 10% 2023 · HS 2017
Somalia 5% 2023 · HS 2017
South Africa 0% 2023
South Korea 6.5% 2023
Sri Lanka 0% 2023
St Kitts & Nevis 5% 2023
St Pierre & Miquelon 5% 2021 · HS 2017
St Vincent & the Grenadines 5% 2023
Sudan 10% 2021 · HS 2017
Switzerland 0.6%* 2023
Tanzania 0% 2023
Thailand 0% 2023
Togo 10% 2023
Tonga 15% 2023 · HS 2017
Türkiye 6.5% 2023
Tuvalu 0% 2017 · HS 2017
Uganda 0% 2023
Ukraine 0% 2023 · HS 2017
United Arab Emirates 5% 2023
United Kingdom 6% 2023
United States 5% 2023
Uruguay 14% 2023 · HS 2017
Uzbekistan 0% 2021 · HS 2017
Vanuatu 5% 2023
Venezuela 14% 2023 · HS 2017
Vietnam 0% 2023
Yemen 5% 2017 · HS 2017
Zambia 15% 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
59899 Other chemical products & preparations
End use (BEC Rev. 5)
Intermediate goods · BEC 211220
CPC 2.1 product
35499 Other chemical products n.e.c.
ISIC Rev. 4 activity
2029 Manufacture of other chemical products n.e.c.

Earlier HS editions

HSCode
20173824.91unchanged
20123824.90changed
20073824.90changed
20023824.20, 3824.90changed
19963824.20, 3824.90changed
19923823.20, 3823.90changed

Correspondence tables of the United Nations Statistics Division (UNSD)

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.

  1. US Import and export controls

    Notice of Action: Brazil's Acts, Policies, and Practices Related to Digital Trade and Electronic Payment Services; Unfair, Preferential Tariffs; Anti-Corruption Enforcement; Intellectual Property Protection; Ethanol Market Access; and Illegal Deforestation

    FR Doc. 2026-14542 · 91 FR 45516 · Source: federalregister.gov

  2. US Tariff change

    Notice of Determination and Request for Comments Concerning Action Pursuant to Section 301: Brazil's Acts, Policies, and Practices Related to Digital Trade and Electronic Payment Services; Unfair, Preferential Tariffs; Anti-Corruption Enforcement; Intellectual Property Protection; Ethanol Market Access; and Illegal Deforestation

    FR Doc. 2026-11158 · 91 FR 33854 · Source: federalregister.gov

  3. US Anti-dumping

    Lithium Hexafluorophosphate From China; Institution of Antidumping and Countervailing Duty Investigations and Scheduling of Preliminary Phase Investigations

    FR Doc. 2026-04617 · 91 FR 11560 · Source: federalregister.gov

Rule changes →

Code history

Since 2017; before, these goods were classified under 3824.90.

Subheading 3824.91 is a single line in the UK Global Tariff, where the duty is 6%.

The EU Combined Nomenclature has one tariff line for subheading 3824.91; the duty is 6.5%.

Goods from 174 countries can enter the UK at a preferential rate instead of the standard 6%; 174 of them pay no duty at all, for example under DCTS Comprehensive or European Union.

In the 12 months to August 2026, the UK imported these goods worth £743.1k (up 13% on the year before), at an average of £7.90 per kg; China supplied 33%, followed by Lebanon.

World trade in these goods reached US$199m in 2024, down 20.7% on 2023.

Ireland was the largest exporter with 10.9% of the total, ahead of the United States.

Questions and answers

What is the HS code for mixtures and preparations consisting mainly of (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl methyl methylphosphonate and bis[(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl] methylphosphonate?

Mixtures and preparations consisting mainly of (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl methyl methylphosphonate and bis[(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl] methylphosphonate fall under HS subheading 3824.91, part of heading 3824, in section VI of the Harmonized System.

What is the import duty on mixtures and preparations consisting mainly of in the UK?

Under the UK Global Tariff, imports under 3824.91 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 mixtures and preparations consisting mainly of in the EU?

Under the EU Combined Nomenclature, imports under 3824.91 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 mixtures and preparations consisting mainly of?

Ireland, with US$22m in 2024 (10.9% 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 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 China (33%), Lebanon (23%) and United States (21%), out of total imports of £743.1k.

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