UK Global Tariff · commodity code · HS 3811.29
3811 29 00 48: Mixed c12-c20-alkyl and c14-c18-unsaturated alkyl derivates of phosphonic acid (cas rn 93925-25-8), containing by weight more than 80% of oleyl, palmityl and stearyl groups, for use in the manufacture of lubricating oils
✓ Can be used in a customs declaration Data: UK Global Tariff · checked on 24 October 2026
- 3811 Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils
- Additives for lubricating oils
- 3811 29 00 00 Other
- 3811 29 00 48 Mixed c12-c20-alkyl and c14-c18-unsaturated alkyl derivates of phosphonic acid (cas rn 93925-25-8), containing by weight more than 80% of oleyl, palmityl and stearyl groups, for use in the manufacture of lubricating oils
What you pay
Importing into UK
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 1
- 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 1
- 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
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 |
Footnotes
TN701 According to the Council Regulation (EU) No 692/2014 (OJ L183, p. 9), as retained in UK La…
The prohibition shall not apply in respect of:
(a) the execution until 26 September 2014, of trade contracts concluded before 25 June 2014, or of ancillary contracts necessary for the execution of such contracts, provided that the natural or legal persons, entity or body seeking to perform the contract have notified, at least 10 working days in advance, the activity or transaction to the competent authority of the Member State in which they are established.
(b) goods originating in Crimea or Sevastopol which have been made available to the Ukrainian authorities for examination, for which compliance with the conditions conferring entitlement to preferential origin has been verified and for which a certificate of origin has been issued in accordance with Regulation (EU) No 978/2012 and Regulation (EU) No 374/2014, as retained in UK Law, or in accordance with the EU-Ukraine Association Agreement
UK: imports by month · HS 3811.29
Main suppliers, last 12 months
| Country | Value | Share | Change |
|---|---|---|---|
 United States | £2.8m | 29.6% | -30.8% |
 Germany | £2.6m | 26.7% | -40% |
 China | £1m | 10.6% | +263.8% |
 Slovakia | £982k | 10.2% | -39.2% |
 South Korea | £849k | 8.9% | — |
 France | £555k | 5.8% | +24.8% |
 India | £354k | 3.7% | -55.2% |
 United Arab Emirates | £127k | 1.3% | — |
Same subheading in other tariffs
3811.29 Additives for lubricating oils: other
EU 5.8% Third-country duty 1 tariff line 
Türkiye 5.8% Third-country duty 2 tariff lines USA 6.5% General (MFN) 1 tariff line 
Canada Free Third-country duty 1 tariff line 
Mexico Free – 5% Third-country duty 4 tariff lines · average 1.3% 
Brazil 12.6% Third-country duty 3 tariff lines 
Argentina 12.6% Third-country duty 7 tariff lines 
Peru Free Third-country duty 1 tariff line 
New Zealand Free Third-country duty 1 tariff line 
Japan Free Third-country duty 1 tariff line 
Taiwan Free Third-country duty 1 tariff line 
GCC 5% Third-country duty 1 tariff line 
Switzerland Free Third-country duty 1 tariff line 
Norway Free Third-country duty 1 tariff line 
North Macedonia 6% Third-country duty 1 tariff line 
Nigeria 10% Third-country duty 1 tariff line UK lines: 3811.29
- 3811 29 00 20Additives for lubricating oils, consisting of reaction products of bis(2-methylpentan-2-yl)dithiophosphoric acid with propylene oxide, phosphorus oxide, and amines with c12-14 alkyl chains, used as a concentrated additive for the manufacture of lubricating oils
- 3811 29 00 23Additive for lubricating oils consisting of molybdenum, bis(dibutylcarbamodithioato)di-μ-oxodioxodi-, sulfurised (cas rn 68412-26-0)
- 3811 29 00 30Additives for lubricating oils, consisting of reaction products of butyl-cyclohex-3-enecarboxylate, sulphur and triphenyl phosphite (cas rn 93925-37-2), used as a concentrated additive for the manufacture of engine oils through a blending process
- 3811 29 00 33Additives for lubricating oils, consisting of a mixture of n,n-dialkyl -2-hydroxyacetamides with alkyl chain lengths between 12 and 18 carbon atoms (cas rn 866259-61-2), used in the manufacture of blends of additives for lubricating oils
- 3811 29 00 38Additives consisting of the c12-c14-tert-alkylamine salts of the esters of c14-c18 saturated and c18 unsaturated alcohols with phosphorus pentoxide (cas rn 1471315-74-8), for use in the manufacture of blends of additives for lubricating oils or greases
- 3811 29 00 40Additives for lubricating oils, consisting of reaction products of 2-methyl-prop-1-ene with sulphur monochloride and sodium sulphide (cas rn 68511-50-2), with a chlorine content by weight of 0.01% or more but not more than 0.5%, used as a concentrated additive for the manufacture of lubricating oils
- 3811 29 00 43Reaction products of c14-c18 (branched and linear) and c18 (unsaturated) fatty acids with tetraethylenepentamine (linear, branched, cyclic) (cas rn 68784-17-8), for use in the manufacture of lubricating oils
- 3811 29 00 45Additives consisting of a mixture of (c7-c9) dialkyl adipates, in which diisooctyl adipate (cas rn 1330-86-5) is more than 85% by weight of the mixture, for use in the manufacture of lubricating oils
- 3811 29 00 48Mixed c12-c20-alkyl and c14-c18-unsaturated alkyl derivates of phosphonic acid (cas rn 93925-25-8), containing by weight more than 80% of oleyl, palmityl and stearyl groups, for use in the manufacture of lubricating oils
- 3811 29 00 57Additives consisting of reaction products of diphenylamine and branched nonenes with: - more than 20% but not more than 50% by weight 4-monononyldiphenylamine, and - more than 50% but not more than 80% by weight 4.4'-dinonyldiphenylamine, - a total percentage of 2.4-dinonyldiphenylamine and 2.4'-dinonyldiphenylamine of not more than 15% by weight, used for the manufacture of lubricating oils
- 3811 29 00 75Oxidation inhibitor mainly containing a mixture of isomers of 1-(tert-dodecylthio)propan-2-ol (cas rn 67124-09-8), used in the manufacture of blends of additives for lubricating oils
- 3811 29 00 79Additives, consisting of the reaction products of 1.3,4-thiadiazolidine-2.5-dithione with hydrogen peroxide and tert-nonanethiol, containing by weight: - 70% or more of 2.5-bis(tert-nonyldithio)-[1.3,4]-thiadiazole (cas rn 89347-09-1), and - 10% or more of 5-(tert-nonyldithio)-1.3,4-thiadiazole-2(3h)-thione (cas rn 97503-12-3), for use in the manufacture of blends of additives for lubricating oils
- 3811 29 00 85Additives consisting of a mixture of 3-((c9-11)-isoalkyloxy)tetrahydrothiophene 1.1-dioxide, c10-rich (cas rn 398141-87-2), for use in the manufacture of lubricating oils
- 3811 29 00 90Additives for lubricating oils: other, other
Legal notes
In the UK Global Tariff, 3811 29 00 48 is one of 14 lines under subheading 3811.29, additives for lubricating oils: other.
The third-country duty is 4%.
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 12 months to August 2026, the UK imported goods of subheading 3811.29 worth £9.6m (down 18% on the year before), at an average of £3.37 per kg; United States supplied 30%, followed by Germany.
For the same subheading, the EU duty is 5.8%, the Türkiye duty is 5.8%, the US duty is 6.5%, the Canada duty is free, the Mexico duty is 0%–5%, the Brazil duty is 12.6%, the Argentina duty is 12.6%, the Peru duty is free, the New Zealand duty is free, the Japan duty is free, the Taiwan duty is free, the GCC duty is 5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is 6% and the Nigeria duty is 10%.
The UK imported goods of subheading 3811.29 worth US$13m in 2024; the largest supplier was Germany.
Questions and answers
What is the UK import duty for commodity code 3811 29 00 48?
The third-country duty in the UK Global Tariff is 4%. Preferential rates for goods from agreement countries, anti-dumping duties and VAT are not included.
Which countries get a lower rate on 3811 29 00 48?
174 countries have a preferential rate on this line, 174 of them at 0%, under DCTS Comprehensive, European Union and DCTS Enhanced and other arrangements. The rate applies only to goods that meet the rules of origin of the agreement, with proof of origin. Choose the country of origin on this page to see its rate.
Where does the UK import these goods from?
For subheading 3811.29 as a whole, the largest supplier in 2024 was Germany (US$5m), followed by the United States.