Chapter 38 · Miscellaneous chemical products · Section 6
HS Code 3811.21
Containing petroleum oils or oils obtained from bituminous minerals
Heading 3811: Antiknock 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
US duty (general)
6.5%
US HTS lines
1
EU CN codes
1
UK commodity codes
36
Unit
kg
US HTS + UK Tariff v4.0.1596 · updated 2026-09-10 · sources
United States - HTS lines under 3811.21
Source: official Harmonized Tariff Schedule (USITC). "General" is the normal-trade-relations rate; "Special" lists preference programs; "Other" is the column-2 rate. Additional Section 232/301 duties may apply on top.
| HTS code | Description | General | Special | Other | Unit |
|---|---|---|---|---|---|
| 3811.21.00 | Containing petroleum oils or oils obtained from bituminous minerals | 6.5% | Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG) | 60% | kg |
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Enter the customs value (and quantity, when a rate is per-unit) to estimate the general-rate duty per HTS line. Estimates exclude Section 232/301 surcharges, MPF/HMF and fees. Not a customs ruling.
European Union - CN codes under 3811.21
Source: EU Combined Nomenclature (Eurostat, © European Union, reused per Decision 2011/833/EU). Duty rates and measures live in TARIC; each code links to the official consultation.
| CN code | Description | |
|---|---|---|
| 3811 21 00 | Containing petroleum oils or oils obtained from bituminous minerals | EU duty (TARIC) → |
United Kingdom - commodity codes under 3811.21
Source: UK Integrated Online Tariff (Open Government Licence v3.0). Declarable 10-digit codes go on the customs declaration; check the official page for the current duty and VAT measures.
| Commodity code | Description | |
|---|---|---|
| 3811 21 00 00 | Containing petroleum oils or oils obtained from bituminous minerals | UK duty & VAT → |
| 3811 21 00 11 | Dispersing agent and oxidation inhibitor containing :<br> <br><br><br>- o-amino polyisobutylenephenol (CAS RN 78330-13-9),<br> <br><br><br>- more than 30 % by weight but not more than 50 % by weight of mineral oils,<br>used in the manufacture of blends of additives for lubricating oils | UK duty & VAT → |
| 3811 21 00 12 | Dispersing agent containing :<br> <br><br><br>- esters of polyisobutenyl succinic acid and pentaerythritol (CAS RN 103650-95-9),<br> <br><br><br>- 35 % or more but not more than 55 % by weight of mineral oils and<br> <br><br><br>- with a chlorine content of not more than 0,05 % by weight,<br>used in the manufacture of blends of additives for lubricating oils | UK duty & VAT → |
| 3811 21 00 13 | Additives containing :<br> <br><br><br>- borated magnesium (C16-C24) alkylbenzene sulphonates and<br> <br><br><br>- mineral oils,<br>having a total base number (TBN) of more than 250, but not more than 350, for use in the manufacture of lubricating oils | UK duty & VAT → |
| 3811 21 00 14 | Dispersing agent :<br> <br><br><br>- containing polyisobutene succinimide derived from reaction products of polyethylenepolyamines with polyisobutenyl succinic anhydride (CAS RN 147880-09-9),<br> <br><br><br>- containing 35 % or more but not more than 55 % by weight of mineral oils,<br> <br><br><br>- with a chlorine content by weight of not more than 0,05 %, <br> <br><br><br>- having a total base number of less than 15,<br>used in the manufacture of blends of additives for lubricating oils | UK duty & VAT → |
| 3811 21 00 16 | Detergent containing :<br> <br><br><br>- Calcium salt of beta-aminocarbonyl alkylphenol (reaction product Mannich base of alkylphenol)<br> <br><br><br>- 40 % or more but not more than 60 % by weight of mineral oils and<br> <br><br><br>- having a total base number more than 120<br>used in the manufacture of blends of additives for lubricating oils | UK duty & VAT → |
| 3811 21 00 19 | Additives containing:<br> <br><br><br>- a polyisobutylene succinimide based mixture, and<br> <br><br><br>- more than 30 % but not more than 50 % by weight of mineral oils,<br>having a total base number of more than 40, for use in the manufacture of lubricating oils | UK duty & VAT → |
| 3811 21 00 20 | Additives for lubricating oils, based on complex organic molybdenum compounds, in the form of a solution in mineral oil | UK duty & VAT → |
| 3811 21 00 21 | Additive 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 | UK duty & VAT → |
| 3811 21 00 22 | Additive 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 | UK duty & VAT → |
| 3811 21 00 24 | Additive 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 | UK duty & VAT → |
| 3811 21 00 25 | Additives containing:<br> <br><br><br>- 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<br> <br><br><br>- more than 15 % , but not more than 30 % by weight of mineral oils,<br>for use in the manufacture of lubricating oils | UK duty & VAT → |
| 3811 21 00 26 | Additive 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 | UK duty & VAT → |
| 3811 21 00 27 | Additives containing:<br>-10 % or more by weight of an ethylene-propylene copolymer chemically modified by succinic anhydride groups reacted with 3-nitroaniline, and<br><br>-mineral oils,<br><br>for use in the manufacture of lubricating oils | UK duty & VAT → |
| 3811 21 00 28 | Additive 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 | UK duty & VAT → |
| 3811 21 00 29 | Additive 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 | UK duty & VAT → |
| 3811 21 00 30 | Additives 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 | UK duty & VAT → |
| 3811 21 00 32 | Additive 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 | UK duty & VAT → |
| 3811 21 00 33 | Additives containing:<br> <br><br><br>- calcium salts of heptylphenol reaction products with formaldehyde (CAS RN 84605-23-2), and<br> <br><br><br>- mineral oils,<br>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 | UK duty & VAT → |
| 3811 21 00 34 | Detergent 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 | UK duty & VAT → |
| 3811 21 00 37 | Additives containing:<br> <br><br><br>- a styrene-maleic anhydride copolymer esterified with C4-C20 alcohols, modified by aminopropylmorpholine, and<br> <br><br><br>- more than 50 % but not more than 75 % by weight of mineral oils,<br> for use in the manufacture of lubricating oils | UK duty & VAT → |
| 3811 21 00 38 | Solution 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) | UK duty & VAT → |
| 3811 21 00 48 | Additives 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 | UK duty & VAT → |
| 3811 21 00 53 | Additives containing: <br> <br><br><br>- overbased calcium petroleum sulphonates (CAS 68783-96-0) with a sulphonate content by weight of 15 % or more, but not more than 30 % and<br> <br><br><br>- by weight more than 40 % but not more than 60 % of mineral oil,<br>having a total base number of 280 or more but not more than 420,for use in the manufacture of lubricating oils | UK duty & VAT → |
| 3811 21 00 55 | Additives containing:<br> <br><br><br>- low base number calcium polypropylbenzenesulphonate (CAS RN 75975-85-8) and<br> <br><br><br>- by weight more than 40 % but not more than 60 % mineral oils,<br>having a total base number of more than 10 but not more than 25, for use in the manufacture of lubricating oils | UK duty & VAT → |
| 3811 21 00 60 | Additives for lubricating oils, containing mineral oils,<br> <br><br><br>- 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 %,<br> <br><br><br>- with a total base number (TBN) of 280 or more but not more than 320,<br>used as a concentrated additive for the manufacture of engine oils through a blending process | UK duty & VAT → |
| 3811 21 00 63 | Additives containing:<br> <br><br><br>- 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<br> <br><br><br>- by weight more than 40 % but not more than 60 % of mineral oils,<br>having a total base number of 280 or more but not more than 320, for use in the manufacture of lubricating oils | UK duty & VAT → |
| 3811 21 00 65 | Additives containing:<br> <br><br><br>- a polyisobutylene succinimide based mixture (CAS RN 160610-76-4), and<br> <br><br><br>- more than 35 % but not more than 50 % by weight of mineral oils,<br>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 | UK duty & VAT → |
| 3811 21 00 70 | Additives for lubricating oils,<br> <br><br><br>- containing polyisobutylene succinimide derived from reaction products of polyethylenepolyamines with polyisobutenyl succinic anhydride (CAS RN 84605-20-9),<br> <br><br><br>- containing mineral oils,<br> <br><br><br>- with a chlorine content by weight of 0,05 % or more but not more than 0,25 %,<br> <br><br><br>- with a total base number (TBN) of more than 20,<br>used as a concentrated additive for the manufacture of engine oils through a blending process | UK duty & VAT → |
| 3811 21 00 73 | Additives containing:<br> <br><br><br>- borated succinimide compounds (CAS RN 134758-95-5),<br> <br><br><br>- mineral oils, and<br> <br><br><br>- having a total base number (TBN) greater than 40,<br>for use in the manufacture of additive mixtures for lubricating oils | UK duty & VAT → |
| 3811 21 00 75 | Additives containing:<br> <br><br><br>- Calcium (C10-C14) dialkylbenzenesulfonates,<br> <br><br><br>- more than 40 %, but not more than 60 % by weight of mineral oils,<br>with a total base number of not more than 10, for use in the manufacture of blends of additives for lubricating oils | UK duty & VAT → |
| 3811 21 00 77 | Antifoam additives consisting of:<br> <br><br><br>- a copolymer of 2-ethylhexyl acrylate and ethyl acrylate, and<br> <br><br><br>- more than 50 % but not more than 80 % by weight of mineral oils<br>for use in the manufacture of additive blends for lubricating oils | UK duty & VAT → |
| 3811 21 00 80 | Additives containing :<br> <br><br><br>- polyisobutylene aromatic polyamine succinimide,<br> <br><br><br>- more than 40 % but not more than 60 % by weight of mineral oils,<br>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 | UK duty & VAT → |
| 3811 21 00 83 | Additives containing:<br> <br><br><br>- polyisobutene succinimide derived from reaction of polyethylenepolyamines with polyisobutenyl succinic anhydride (CAS RN 84605-20-9),<br> <br><br><br>- containing more than 31,9 % but not more than 43,3 % by weight of mineral oils,<br> <br><br><br>- not more than 0,05 % by weight chlorine, and<br> <br><br><br>- having a total base number (TBN) greater than 20,<br>for use in the manufacture of additives blends for lubricating oils | UK duty & VAT → |
| 3811 21 00 85 | Additives, -|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 | UK duty & VAT → |
| 3811 21 00 90 | Other | UK duty & VAT → |
Not a customs ruling. Classification is determined by the importing country's customs authority and depends on the exact product. This page is reference information from official published schedules, not legal advice. For a binding decision, request a ruling (US: CBP CROSS · UK: HMRC ATaR · EU: BTI).
Other subheadings in 3811
3811.00 3811 Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, a
3811.11 Based on lead compounds
3811.19 Other
3811.21 Containing petroleum oils or oils obtained from bituminous minerals
3811.29 Other
3811.90 Other
Sources: U.S. International Trade Commission, Harmonized Tariff Schedule (public domain) · EU Combined Nomenclature © European Union, Eurostat (Decision 2011/833/EU) · UK Integrated Online Tariff, contains public sector information licensed under the Open Government Licence v3.0. Data refreshed weekly. Details on About & Data Sources.