Heading · Chapter 38 · Section VI, Products of the chemical or allied industries
HS 3811Anti-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
Miscellaneous chemical products
- Customs duty
- 10%
- 5 tariff items
- GST now
- 18%
- or 5% for some goods
- Import policy
- Free
- Export policy
- Free
- Unit
- kg
- Duty in China
- 5.5% to 6.5%
- On Indian goods
Codes under this heading
5 codes. Duty and GST are set on the 8-digit tariff items; open the one that describes your goods.
| Code | Description | Customs duty | GST now | Unit |
|---|---|---|---|---|
| 3811 11 00 | Based on lead compounds | 10% | 18% | kg |
| 3811 19 00 | Other | 10% | 18% | kg |
| 3811 21 00 | Containing petroleum oils or oils obtained from bituminous minerals | 10% | 18% | kg |
| 3811 29 00 | Other | 10% | 18% | kg |
| 3811 90 00 | Other | 10% | 18% | kg |
Importing into India
Duty is set on each 8-digit tariff item: open one of the codes above. Basic customs duty across its 5 tariff items: 10%. The rules below cover this whole code.
Anti-dumping, countervailing and safeguard duty
None in force on this code as on 19 Oct 2026. 1 earlier measure has ended.
Import policy (DGFT ITC(HS)) of its tariff items
- Free: 5 tariff items
GST
IGST on imports is the GST rate. Rates changed on 22 September 2025.
- Now 18%, or 5% for some goods.
- Until 21 September 2025 18%, or 12% for some goods.
- Change: Unchanged.
The rules that set it now
| Notification | Goods | Rate |
|---|---|---|
| 9/2025-Integrated Tax (Rate)Schedule II, S.No. 98 | 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 | 18% |
| 9/2025-Integrated Tax (Rate)Schedule I, S.No. 221 | Micronutrients, which are covered under serial number 1(g) of Schedule 1, Part (A) of the Fertilizer Control Order, 1985 and are manufactured by the manufacturers which are registered under the Fertilizer Control Order, 1985 | 5% |
History
| Period | Rate | Notification |
|---|---|---|
| Until 21 Sep 2025 | 12% or 18% | 1/2017-Central Tax (Rate) |
| From 22 Sep 2025 | 5% or 18% | 9/2025-Integrated Tax (Rate) |
Exporting from India
Export duty
Nil. The Second Schedule to the Customs Tariff Act does not list these goods, so no export duty is charged.
Duty drawback (All Industry Rates)
| Drawback item | Goods | Rate | Cap |
|---|---|---|---|
| 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 | 1.2% | — |
Drawback items follow the 4-digit heading, not the 8-digit code: claim the one that describes your goods. Rates of notification 77/2023-Customs (N.T.) as amended, in force on 19 Oct 2026.
Export policy (DGFT ITC(HS) Schedule 2) of its tariff items
- Free: 5 tariff items
China: the same goods (3811)
China shares the first 6 digits with India and splits them into 10-digit codes of its own: 5 in force under 3811. Exporters see what China charges Indian goods; importers see the rebate and licences their Chinese supplier deals with.
| China code | Goods | Duty on Indian goods | MFN | Import VAT | Export rebate | Licences |
|---|---|---|---|---|---|---|
| 3811.11.00.00 | Anti-knock preparations based on lead compounds以铅化合物为基本成分的抗震剂 | 6.5%MFN rate (no APTA concession on this line) | 6.5% | 13% | 0% | None |
| 3811.19.00.00 | Other anti-knock preparations其他抗震剂 | 6.5%MFN rate (no APTA concession on this line) | 6.5% | 13% | 0% | None |
| 3811.21.00.00 | Lubricating oil additives containing petroleum oils含有石油的润滑油添加剂 | 6.5%MFN rate (no APTA concession on this line) | 6.5% | 13% | 0% | None |
| 3811.29.00.00 | Lubricating oil additives, not containing petroleum oils不含石油的润滑油添加剂 | 5.5%APTA rate, with an APTA certificate of origin | 6.5% | 13% | 0% | None |
| 3811.90.00.00 | Other prepared additives for mineral oils其他矿物油用的配制添加剂 | 6.5%MFN rate (no APTA concession on this line) | 6.5% | 13% | 0% | None |
- India is a member of the Asia-Pacific Trade Agreement (APTA). With an APTA certificate of origin, Indian goods pay China's APTA rate where the line has one; China applies the lower of that and its provisional rate.
- The export VAT rebate is what China refunds its own exporters. When China cuts it, Chinese export prices tend to rise.
China's tariff as compiled by HS编码网 from China Customs, the State Council Tariff Commission and the State Taxation Administration. The Chinese is the original.
Nearby codes
Sources
- GSTN HSN code masterChecked 13 Oct 2026
- DGFT ITC(HS) import and export policyChecked 9 Oct 2026
- GST rate per HSN (archived GSTZen extract)Checked 29 Sep 2026
- Customs Tariff of India (First Schedule): sections, chapters, notes and statutory BCDChecked 19 Oct 2026
- GST rates on goods, before and after 22 September 2025Checked 18 Oct 2026
- BIS compulsory certification: products and Quality Control OrdersChecked 18 Oct 2026
- Anti-dumping, countervailing and safeguard duties in force (India)Checked 19 Oct 2026
- India's export duty (Second Schedule to the Customs Tariff Act and notifications 27/2011, 55/2022, 22/2024)Checked 18 Oct 2026
- India's All Industry Rates of duty drawback (notification 77/2023-Customs (N.T.))Checked 19 Oct 2026
- China customs tariff (HS编码网)Checked 19 Oct 2026
For information, not a customs ruling. Only notifications published in the Gazette have legal force; confirm the duty with your customs broker or ICEGATE before you price a deal.