HS Heading 3811
Anti-knock preparations, oxidation and gum inhibitors, viscosity improvers, anti-corrosive preparations and the like, for mineral oils (including gasoline) or other liquids used for the same purposes
5 tariff lines in this heading, within chapter 38 (Miscellaneous chemical products). Click any HS code for the full breakdown and a duty calculation.
| HS Code | Description | CD | SD | VAT | AIT | RD | AT | TTI |
|---|---|---|---|---|---|---|---|---|
| 38111100 | Anti-Knock Preparations Based On Lead Compounds | 5 | 0 | 15 | 5 | 0 | 7.5 | 33.63% |
| 38111900 | Anti-Knock Preparations (Excl. Based On Lead) | 5 | 0 | 15 | 5 | 0 | 7.5 | 33.63% |
| 38112100 | Containing petroleum oils or oils obtained from bituminous minerals | 10 | 0 | 15 | 5 | 0 | 7.5 | 39.75% |
| 38112900 | Other additives for lubricating oils (excl. with petroleum oils) | 10 | 0 | 15 | 5 | 0 | 7.5 | 39.75% |
| 38119000 | OTHER PREPARATIONS, EXCL.ANTI-KNOCK PREPARATIONS, ADDITIVES FOR LUBRICATING OILS | 10 | 0 | 15 | 5 | 0 | 7.5 | 39.75% |
Recorded imports
Between December 2025 and May 2026, NBR recorded commercial imports worth BDT 591,690,184 (1,630,773 kg) under this heading, across 5 of its 5 tariff lines.
| Month | Lines with imports | Net weight | Assessable value |
|---|---|---|---|
| December 2025 | 3 | 371,319 kg | BDT 150,092,395 |
| January 2026 | 4 | 269,817 kg | BDT 100,232,510 |
| February 2026 | 4 | 253,613 kg | BDT 81,852,605 |
| March 2026 | 4 | 220,051 kg | BDT 70,700,651 |
| April 2026 | 4 | 341,104 kg | BDT 118,207,349 |
| May 2026 | 3 | 174,869 kg | BDT 70,604,674 |
The largest lines by assessable value in May 2026:
Bonded imports. A further BDT 20,950,654 (33,027 kg) entered under the bonded-warehouse regime over the same months — duty-free inputs imported against an undertaking to re-export them. That is 3.4% of the total value imported under this heading.
Import figures: NBR Import Statements (IM-4 commercial, IM-7 bonded), December 2025 – May 2026. Assessable value is the customs value on which duty is charged, not the retail or invoice price.