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381121Chapter 38

381121Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity…: Containing petroleum oils or oils obtained from bituminous minerals

HS code 381121 classifies Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity…: Containing petroleum oils or oils obtained from bituminous minerals. 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.

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 : Additives for lubricating oils : Containing petroleum oils or oils obtained from bituminous minerals

Duty rates

US MFN base rate (HTS 2026, Column-1 General) — excludes Section 301 / IEEPA add-ons; not legal advice. Other countries’ rates and live duties via the EximAgent CLI.

  • USUnited States6.5%
    MFNas of Jan 1, 2026

Common questions

What is HS code 381121?
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 : Additives for lubricating oils : Containing petroleum…
What duty rates apply to 381121?
Listed duty rates range from 6.5% across 1 country rate.

Browse all of Chapter 38: Miscellaneous chemical products

Go beyond the code

Find verified importers of 381121Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity…: Containing petroleum oils or oils obtained from bituminous minerals by country, with live tariff context, OFAC sanctions screening, and ready-to-send outreach — each result confidence-tagged.

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