Chapter 38 · Miscellaneous chemical products · Section 6
HS Code 3811.29
Other
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 HTS + UK Tariff v4.0.1596 · updated 2026-09-10 · sources
United States - HTS lines under 3811.29
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 |
|---|---|---|---|---|---|
| 3811.29.00 | Other | 6.5% | Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG) | 25% | kg |
Estimate the US duty runs in your browser · no caps
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 3811.29
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 29 00 | Other | EU duty (TARIC) → |
United Kingdom - commodity codes under 3811.29
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 29 00 00 | Other | UK duty & VAT → |
| 3811 29 00 20 | Additives 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 | UK duty & VAT → |
| 3811 29 00 23 | Additive for lubricating oils consisting of molybdenum, bis(dibutylcarbamodithioato)di-μ-oxodioxodi-, sulfurized (CAS RN 68412-26-0) | UK duty & VAT → |
| 3811 29 00 30 | Additives 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 | UK duty & VAT → |
| 3811 29 00 33 | Additives 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 | UK duty & VAT → |
| 3811 29 00 38 | Additives 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 | UK duty & VAT → |
| 3811 29 00 40 | Additives 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 | UK duty & VAT → |
| 3811 29 00 43 | Reaction 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 | UK duty & VAT → |
| 3811 29 00 45 | Additives 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 | UK duty & VAT → |
| 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 | UK duty & VAT → |
| 3811 29 00 57 | Additives 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 | UK duty & VAT → |
| 3811 29 00 75 | Oxidation 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 | UK duty & VAT → |
| 3811 29 00 79 | Additives, 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 | UK duty & VAT → |
| 3811 29 00 85 | Additives 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 | UK duty & VAT → |
| 3811 29 00 90 | Other | UK duty & VAT → |
Other subheadings in 3811
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.