European Union tariff line 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
Last updated
Key facts
- Tariff line
- 3811 29 00 79
- Covers
- Additives for lubricating oils, 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
- Duty (MFN)
- 5.8%
- Preferential rates
- From 0% (58 programmes or origins)
- Additional duties
- None recorded
- Restrictions
- None recorded
- Import VAT/GST in the European Union
- VAT 21%
- De minimis in the European Union
- Flat €3 duty up to €150; tax always charged
- Tariff
- European Union
- HS subheading
- 3811.29
Summary
In the European Union tariff, line 3811 29 00 79 covers additives for lubricating oils, 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. The general (MFN) duty rate is 5.8%. It falls under HS subheading 3811.29 in heading 38.11 (chapter 38).
What this line covers
In the European Union tariff, line 3811 29 00 79 covers additives for lubricating oils, 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.
Its legal text is “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”, read under “Additives for lubricating oils” and “Other”.
How it is structured
It falls under HS subheading 3811.29 in heading 38.11 (chapter 38). The first six digits are the Harmonized System code; the 4 digits after them are added by the European Union tariff.
- Chapter 38
- Miscellaneous chemical products
- Heading 38.11
- 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
- Subheading 3811.29
- Additives for lubricating oils
- Within the subheading
- Other
- Line 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
Duty
The general (MFN) duty rate is 5.8%.
The rate is published on 3811 29 00 00.
Duty-free entry applies to goods that qualify under 5 programmes, and to goods from 52 origins.
A preferential rate of 4.6% applies to goods from Mercosur.
| Preferential rate | Programme or origin |
|---|---|
| 0% | EU-Switzerland agreement: re-imported goods (1007) |
| 0% | CARIFORUM (1033) |
| 0% | Eastern and Southern Africa States (1034) |
| 0% | SADC EPA (1035) |
| 0% | Preferential origin in accordance with the Agreement in the form of an Exchange of Letters between the European Union and the Kingdom of Morocco on the amendment of Protocols 1 and 4 to the Euro-Mediterranean Agreement establishing an association between the European Communities and their Member St… (2000) |
| 0% | GSP-EBA (Special arrangement for the least-developed countries - Everything But Arms) (2005) |
| 0% | EEA - European Economic Area (2012) |
| 0% | GSP - General arrangements (2020) |
| 0% | GSP+ (incentive arrangement for sustainable development and good governance) (2027) |
| 0% | OCTs (Overseas Countries and Territories) (2080) |
| 0% | Central America (2200) |
| 0% | Andorra (AD) |
| 0% | Albania (AL) |
| 0% | Bosnia and Herzegovina (BA) |
| 0% | Canada (CA) |
| 0% | Switzerland (CH) |
| 0% | Côte d'Ivoire (CI) |
| 0% | Chile (CL) |
| 0% | Cameroon (CM) |
| 0% | Colombia (CO) |
| 0% | Algeria (DZ) |
| 0% | Ecuador (EC) |
| 0% | Egypt (EG) |
| 0% | Fiji (FJ) |
| 0% | Faroe Islands (FO) |
| 0% | United Kingdom (GB) |
| 0% | Georgia (GE) |
| 0% | Ghana (GH) |
| 0% | Israel (IL) |
| 0% | Jordan (JO) |
| 0% | Japan (JP) |
| 0% | Kenya (KE) |
| 0% | South Korea (KR) |
| 0% | Lebanon (LB) |
| 0% | Morocco (MA) |
| 0% | Moldova (MD) |
| 0% | Montenegro (ME) |
| 0% | North Macedonia (MK) |
| 0% | Mexico (MX) |
| 0% | New Zealand (NZ) |
| 0% | Peru (PE) |
| 0% | Papua New Guinea (PG) |
| 0% | Palestine (PS) |
| 0% | Solomon Islands (SB) |
| 0% | Singapore (SG) |
| 0% | Syria (SY) |
| 0% | Tunisia (TN) |
| 0% | Türkiye (TR) |
| 0% | Ukraine (UA) |
| 0% | United States (US) |
| 0% | Vietnam (VN) |
| 0% | Samoa (WS) |
| 0% | a group of origins (TARIC area XC) (XC) |
| 0% | Kosovo (XK) |
| 0% | a group of origins (TARIC area XL) (XL) |
| 0% | Serbia (XS) |
| 0% | South Africa (ZA) |
| 4.6% | Mercosur (5500) |
Import VAT and de minimis in the European Union
The European Union charges VAT on imports at a standard rate of 21%.
From 1 July 2026 until 1 July 2028, consignments sold to buyers in the European Union worth up to €150 pay a flat customs duty of €3 per tariff classification in the consignment instead of the tariff rate. Import tax is charged whatever the value.
Other lines under 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-, sulfurized (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 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 90Other
In other countries
National tariff lines under 3811.29 are live on border.bot for the United States (1 line, also used by 1 other country).
- United States1 line, used by 1 other country
Frequently asked questions
What does tariff line 3811 29 00 79 cover in the European Union tariff?
In the European Union tariff, line 3811 29 00 79 covers additives for lubricating oils, 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.
What is the general (MFN) duty on 3811 29 00 79 in the European Union?
The general (MFN) duty rate is 5.8%. The rate is published on 3811 29 00 00.
Which preferential rates apply to 3811 29 00 79?
Duty-free entry applies to goods that qualify under 5 programmes: EU-Switzerland agreement: re-imported goods, Preferential origin in accordance with the Agreement in the form of an Exchange of Letters between the European Union and the Kingdom of Morocco on the amendment of Protocols 1 and 4 to the Euro-Mediterranean Agreement establishing an association between the European Communities and their Member St…, EEA - European Economic Area, a group of origins (TARIC area XC) and a group of origins (TARIC area XL), and to goods from CARIFORUM, the Eastern and Southern Africa States, SADC EPA, GSP-EBA (Special arrangement for the least-developed countries - Everything But Arms), GSP - General arrangements, GSP+ (incentive arrangement for sustainable development and good governance), OCTs (Overseas Countries and Territories), Central America, Andorra, Albania, Bosnia and Herzegovina, Canada, Switzerland, Côte d'Ivoire, Chile, Cameroon, Colombia, Algeria, Ecuador, Egypt, Fiji, the Faroe Islands, the United Kingdom, Georgia, Ghana, Israel, Jordan, Japan, Kenya, South Korea, Lebanon, Morocco, Moldova, Montenegro, North Macedonia, Mexico, New Zealand, Peru, Papua New Guinea, Palestine, the Solomon Islands, Singapore, Syria, Tunisia, Türkiye, Ukraine, the United States, Vietnam, Samoa, Kosovo, Serbia and South Africa. A preferential rate of 4.6% applies to goods from Mercosur.
Sources and updates
The tariff lines for the European Union come from border.bot release 1, read from the publisher’s files, and have been live since 11 October 2026.
The duty rates for the European Union come from border.bot release 1, read from the publisher’s files, and have been live since 11 October 2026.
The trade programmes for the European Union come from border.bot release 1, read from the publisher’s files, and have been live since 11 October 2026.
The import taxes for the European Union come from border.bot release 1, imported from a file, and have been live since 9 October 2026.
The de minimis thresholds for the European Union come from border.bot release 2, entered by border.bot, and have been live since 11 October 2026.
This page was last updated on 11 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.