UK Global Tariff · commodity code · HS 3811.21
3811 21 00 25
3811 21 00 25: Additives containing: - a (c8-18) alkyl polymethacrylate copolymer with n-[3-(dimethylamino)propyl]methacrylamide, of an average molecular weight (mw) of more than 10.000 but not more than 20.000, and - more than 15% , but not more than 30% by weight of mineral oils, for use in the manufacture of lubricating oils
Lubricating oil additives (with petroleum oil)
✓ 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 21 00 00 Containing petroleum oils or oils obtained from bituminous minerals
- 3811 21 00 25 Additives containing: - a (c8-18) alkyl polymethacrylate copolymer with n-[3-(dimethylamino)propyl]methacrylamide, of an average molecular weight (mw) of more than 10.000 but not more than 20.000, and - more than 15% , but not more than 30% by weight of mineral oils, for use in the manufacture of lubricating oils
What you pay
Importing into UK
Customs duty 4% standard rate depends on the country of origin
Additional duties and charges 2 additional measures Import requirements: 1 VAT 20.00 % import VAT
Duty calculatorCalculate duty and taxes → 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 suspensionAutonomous suspension under end-use Free
- Applies to goods from
- all countries
- In force
- until 31 December 2028
- Legal act
- 2020 No. 1435
- Documents
- N990 EUS - Authorisation for the use of end use procedure (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 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…
According to the Council Regulation (EU) No 692/2014 (OJ L183, p. 9), as retained in UK Law, it shall be prohibited to import into European Union goods originating in Crimea or Sevastopol.
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
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 3811.21
last 12 months£110.8m+4.5% · previous 12 months
Average import price£3.67 per kg
Main suppliers, last 12 months
| Country | Value | Share | Change |
|---|---|---|---|
 France | £42m | 37.9% | +4.1% |
 Italy | £18.2m | 16.4% | -16.2% |
 United States | £13.2m | 11.9% | +6.3% |
 Belgium | £13m | 11.7% | +2.1% |
 Germany | £11.2m | 10.1% | +21.5% |
 Netherlands | £5.5m | 4.9% | +13.1% |
 India | £1.6m | 1.4% | +566.8% |
 China | £1.4m | 1.3% | +197.1% |
Same subheading in other tariffs
3811.21 Containing petroleum oils or oils obtained from bituminous minerals
EU 5.3% Third-country duty 1 tariff line 
Türkiye 5.3% Third-country duty 2 tariff lines USA 6.5% General (MFN) 1 tariff line 
Canada Free Third-country duty 2 tariff lines 
Mexico Free – 15% Third-country duty 8 tariff lines · average 4.4% 
Brazil Free – 12.6% Third-country duty 6 tariff lines · average 10.5% 
Argentina Free – 12.6% Third-country duty 10 tariff lines · average 6.3% 
Peru Free Third-country duty 3 tariff lines 
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: 3811.21
- 3811 21 00 11Dispersing agent and oxidation inhibitor containing: - o-amino polyisobutylenephenol (cas rn 78330-13-9), - more than 30% by weight but not more than 50% by weight of mineral oils, used in the manufacture of blends of additives for lubricating oils
- 3811 21 00 12Dispersing agent containing: - esters of polyisobutenyl succinic acid and pentaerythritol (cas rn 103650-95-9), - 35% or more but not more than 55% by weight of mineral oils and - with a chlorine content of not more than 0.05% by weight, used in the manufacture of blends of additives for lubricating oils
- 3811 21 00 13Additives containing: - borated magnesium (c16-c24) alkylbenzene sulphonates and - mineral oils, having a total base number (tbn) of more than 250, but not more than 350, for use in the manufacture of lubricating oils
- 3811 21 00 14Dispersing agent: - containing polyisobutene succinimide derived from reaction products of polyethylenepolyamines with polyisobutenyl succinic anhydride (cas rn 147880-09-9), - containing 35% or more but not more than 55% by weight of mineral oils, - with a chlorine content by weight of not more than 0.05%, - having a total base number of less than 15, used in the manufacture of blends of additives for lubricating oils
- 3811 21 00 16Detergent containing: - calcium salt of beta-aminocarbonyl alkylphenol (reaction product mannich base of alkylphenol) - 40% or more but not more than 60% by weight of mineral oils and - having a total base number more than 120 used in the manufacture of blends of additives for lubricating oils
- 3811 21 00 19Additives containing: - a polyisobutylene succinimide based mixture, and - more than 30% but not more than 50% by weight of mineral oils, having a total base number of more than 40, for use in the manufacture of lubricating oils
- 3811 21 00 20Additives for lubricating oils, based on complex organic molybdenum compounds, in the form of a solution in mineral oil
- 3811 21 00 21Additive containing by weight: -90% or more but not more than 97% of reaction products of butyl-cyclohex-3-enecarboxylate and sulphur (cas rn 160305-95-3), -3% or more but not more than 10% of mineral oil, for use in the manufacture of blends of additives for lubricating oils
- 3811 21 00 22Additive consisting essentially of: -polyisobutenyl succinic anhydride (cas rn 192662-34-3) reaction product with n,n-diethylaminoethanol (cas rn 100-37-8), -25% or more by weight, but not more than 40% by weight of mineral oil, used in the manufacture of blends of additives for lubricating oils
- 3811 21 00 24Additive consisting essentially of: -polyisobutenyl succinic anhydride reaction product with polyethylenepolyamines, borated (cas rn 134758-95-5), with a chlorine content by weight of 0.05% or more but not more than 0.25% and a total base number (tbn) of more than 20, -45% and more by weight and no more than 55% by weight of mineral oil, used in the manufacture of blends of additives for lubricating oils
- 3811 21 00 25Additives containing: - a (c8-18) alkyl polymethacrylate copolymer with n-[3-(dimethylamino)propyl]methacrylamide, of an average molecular weight (mw) of more than 10.000 but not more than 20.000, and - more than 15% , but not more than 30% by weight of mineral oils, for use in the manufacture of lubricating oils
- 3811 21 00 26Additive consisting essentially of: -phosphorodithioic acid, mixed o,o-bis (1.3-dimethylbutyl and isopropyl) esters, zinc salts (cas rn 84605-29-8), -7% or more by weight but not more than 12% by weight of mineral oil, used in the manufacture of blends of additives for lubricating oils
- 3811 21 00 27Additives containing: -10% or more by weight of an ethylene-propylene copolymer chemically modified by succinic anhydride groups reacted with 3-nitroaniline, and -mineral oils, for use in the manufacture of lubricating oils
- 3811 21 00 28Additive consisting essentially of: -zinc bis(o,o-bis(2-ethylhexyl)) bis (dithiophosphate) (cas rn 4259-15-8); -triphenyl phosphite (cas rn 101-02-0) more than 0.5% by weight but not more than 6% by weight, -o,o,o-triphenyl phosphorothioate (cas rn 597-82-0) more than 0.5% by weight but not more than 6% by weight, and not more than 7.5% by weight of the combination of triphenylphosphorus compounds -10% or more by weight but not more than 20% by weight of mineral oils, used in the manufacture of blends of additives for lubricating oils
- 3811 21 00 29Additive containing by weight: -25% or more but not more than 40% of calcium c16-24 alkylbenzenesulphonates (cas rn 70024-69-0), -30% or more but not more than 65% of mineral oils, for use in the manufacture of blends of additives for lubricating oils
- 3811 21 00 30Additives for lubricating oils, containing mineral oils, consisting of calcium salts of reaction products of polyisobutylene substituted phenol with salicylic acid and formaldehyde, used as a concentrated additive for the manufacture of engine oils through a blending process
- 3811 21 00 32Additive consisting essentially of: -zinc o,o,o',o'-tetrakis (1.3-dimethylbutyl) bis(phosphorodithioate) (cas rn 2215-35-2), -4% or more by weight but not more than 12% by weight of mineral oil, used in the manufacture of blends of additives for lubricating oils
- 3811 21 00 33Additives containing: - calcium salts of heptylphenol reaction products with formaldehyde (cas rn 84605-23-2), and - mineral oils, having a total base number (tbn) of more than 40 but not more than 100, for use in the manufacture of lubricating oils or overbased detergents for use in lubricating oils
- 3811 21 00 34Detergent containing: -benzenesulfonic acid, methyl-, mono-c20-24-branched alkyl derivs., calcium salts (cas rn 722503-68-6), -more than 30% but not more than 60% by weight of mineral oils, and, -having a total base number of more than 310 but not more than 340, used in the manufacture of blends of additives for lubricating oils
- 3811 21 00 37Additives containing: - a styrene-maleic anhydride copolymer esterified with c4-c20 alcohols, modified by aminopropylmorpholine, and - more than 50% but not more than 75% by weight of mineral oils, for use in the manufacture of lubricating oils
- 3811 21 00 38Solution of mineral oils (cas rn 64742-52-5, 64742-53-6, 64742-56-9 or blends thereof) containing by weight: -25% or more but not more than 55% of the barium, calcium, magnesium or zinc salt of dinonylnaphthylsulphonic acid (cas rn 25619-56-1, 28015-99-8, 28016-00-4, or 57855-77-3) -whether or not, not more than 25% of the barium, calcium, magnesium or zinc salt of a mixture of c3-c24 carboxylic acids (cas rn 68990-37-4)
- 3811 21 00 48Additives containing: - overbased magnesium (c20-c24) alkylbenzenesulphonates (cas rn 231297-75-9) and - by weight more than 25% but not more than 50% of mineral oils, - having a total base number of more than 350, but not more than 450, for use in the manufacture of lubricating oils or for use in the manufacture of blends of additives for lubricating oils
- 3811 21 00 53Additives containing: - overbased calcium petroleum sulphonates (cas 68783-96-0) with a sulphonate content by weight of 15% or more, but not more than 30% and - by weight more than 40% but not more than 60% of mineral oil, having a total base number of 280 or more but not more than 420,for use in the manufacture of lubricating oils
- 3811 21 00 55Additives containing: - low base number calcium polypropylbenzenesulphonate (cas rn 75975-85-8) and - by weight more than 40% but not more than 60% mineral oils, having a total base number of more than 10 but not more than 25, for use in the manufacture of lubricating oils
- 3811 21 00 60Additives for lubricating oils, containing mineral oils, - based on calcium polypropylenyl substituted benzenesulphonate (cas rn 75975-85-8) with a content by weight of 25% or more but not more than 35%, - with a total base number (tbn) of 280 or more but not more than 320, used as a concentrated additive for the manufacture of engine oils through a blending process
- 3811 21 00 63Additives containing: - an overbased mixture of calcium petroleum sulphonates (cas rn 61789-86-4) and synthetic calcium alkylbenzenesulphonates (cas rn 68584-23-6 and cas rn 70024-69-0) with a total sulphonate content by weight of 15% or more, but not more than 25% and - by weight more than 40% but not more than 60% of mineral oils, having a total base number of 280 or more but not more than 320, for use in the manufacture of lubricating oils
- 3811 21 00 65Additives containing: - a polyisobutylene succinimide based mixture (cas rn 160610-76-4), and - more than 35% but not more than 50% by weight of mineral oils, having a sulphur content of more than 0.7% but not more than 1.3% by weight, having a total base number of more than 8, for use in the manufacture of lubricating oils
- 3811 21 00 70Additives for lubricating oils, - containing polyisobutylene succinimide derived from reaction products of polyethylenepolyamines with polyisobutenyl succinic anhydride (cas rn 84605-20-9), - containing mineral oils, - with a chlorine content by weight of 0.05% or more but not more than 0.25%, - with a total base number (tbn) of more than 20, used as a concentrated additive for the manufacture of engine oils through a blending process
- 3811 21 00 73Additives containing: - borated succinimide compounds (cas rn 134758-95-5), - mineral oils, and - having a total base number (tbn) greater than 40, for use in the manufacture of additive mixtures for lubricating oils
- 3811 21 00 75Additives containing: - calcium (c10-c14) dialkylbenzenesulfonates, - more than 40%, but not more than 60% by weight of mineral oils, with a total base number of not more than 10, for use in the manufacture of blends of additives for lubricating oils
- 3811 21 00 77Antifoam additives consisting of: - a copolymer of 2-ethylhexyl acrylate and ethyl acrylate, and - more than 50% but not more than 80% by weight of mineral oils for use in the manufacture of additive blends for lubricating oils
- 3811 21 00 80Additives containing: - polyisobutylene aromatic polyamine succinimide, - more than 40% but not more than 60% by weight of mineral oils, with a nitrogen content of more than 0.6% but not more than 0.9% by weight, for use in the manufacture of additive blends for lubricating oils
- 3811 21 00 83Additives containing: - polyisobutene succinimide derived from reaction of polyethylenepolyamines with polyisobutenyl succinic anhydride (cas rn 84605-20-9), - containing more than 31.9% but not more than 43.3% by weight of mineral oils, - not more than 0.05% by weight chlorine, and - having a total base number (tbn) greater than 20, for use in the manufacture of additives blends for lubricating oils
- 3811 21 00 85Additives, - containing more than 20% but not more than 45% by weight of mineral oils, - based on a mixture of branched dodecylphenol sulfide calcium salts, whether or not carbonated, for use in the manufacture of blends of additives
- 3811 21 00 90Containing petroleum oils or oils obtained from bituminous: other
Legal notes
Commodity code 3811 21 00 25 is a line of the UK Global Tariff under HS subheading 3811.21 (containing petroleum oils or oils obtained from bituminous minerals).
The third-country duty is 4%.
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 4%.
Imports of lubricating oil additives (with petroleum oil) (HS 3811.21) into the UK came to £110.8m between September 2025 and August 2026 (up 5% on the year before); France supplied 38%, followed by Italy.
For the same subheading, the EU duty is 5.3%, the Türkiye duty is 5.3%, the US duty is 6.5%, the Canada duty is free, the Mexico duty is 0%–15%, the Brazil duty is 0%–12.6%, the Argentina duty is 0%–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 3811.21 worth US$127m in 2024; the largest supplier was France.
Questions and answers
What is the UK import duty for commodity code 3811 21 00 25?
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 21 00 25?
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 3811.21 as a whole, the largest supplier in 2024 was France (US$55m), followed by Italy.
Typical products
Everyday names, not part of the legal text.