# 381111 — Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity…: Based on lead compounds

HS code 381111 classifies Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity…: Based on lead compounds. It belongs to Chapter 38 (Miscellaneous chemical products) of Section VI (Products of the chemical or allied industries) of the Harmonized System. Duty rates are recorded for 1 country.

> Section VI · Products of the chemical or allied industries
> Chapter 38 · Miscellaneous chemical products

**HS code:** `381111`

## Description

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 : Anti-knock preparations : Based on lead compounds

## Duty rates

| Country | Rate | Programme |
| --- | --- | --- |
| US United States | 0% | MFN |

Rates effective as of 2026-01-01.

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Source: https://hscode.eximagent.ai/38/381111
Last updated: 2026-06-03
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