HS Code 381121: Lubricating oil additives; containing petroleum oils or oils obtained from bituminous minerals

Q: Is HS code 381121 the same in every country?

Yes — HS code 381121 is part of the WCO Harmonized System and is the same in every WCO member country at the 6-digit level. Beyond 6 digits, each country extends the code under its own system (e.g. HTSUS in the US, CN/TARIC in the EU, HSK in Korea, CCCHS in China) for national tariff rates and trade statistics. To see how a specific country classifies this code, select a country.

Q: Which WCO edition does HS code 381121 belong to, and has it been reclassified?

The Harmonized System is maintained by the World Customs Organization (WCO) and revised approximately every five years. The current edition is HS 2022, which replaced HS 2017 on 1 January 2022. Codes are added, merged, or split between editions to reflect new products and trade patterns, so a code valid in one edition may not exist or may mean something different in another.

Q: How do I find the correct country-specific version of HS code 381121?

Beyond the international 6-digit level, each country adds its own digits — the US extends to 10 digits (HTSUS), the EU to 8 or 10 (CN/TARIC), China to 13 (CCCHS), Korea to 10 (HSK), Japan to 9, and so on. To find the full code used by a specific country, select a country in TradeInt's HS Code Tool and search for 381121.

What is HS Code 381121

HS Code 381121 covers Lubricating oil additives; containing petroleum oils or oils obtained from bituminous minerals. It is a 6-digit subheading — the deepest level of the international HS — within: · Section VI — Products of the chemical or allied industries · Chapter 38 — Miscellaneous chemical products · 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. At 6 digits, this code is the same in every HS-adopting country. From digit 7 onward, each country extends it.

Explore global 2026 latest import export trade data and shipment records for Petroleum-Based Lubricant Additives on TradeInt global trade data platform

What does HS Code 381121 Lubricating oil additives; containing petroleum oils or oils obtained from bituminous minerals Cover?

Section VI

Chapters (28-38) Products of the chemical or allied industries

Chapter 38

Miscellaneous chemical products

HS Code 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

HS Code 381121

Lubricating oil additives; containing petroleum oils or oils obtained from bituminous minerals

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What HS Codes for Miscellaneous Chemicals Do Not Cover

Chapter 38 is the catch-all for chemical products not specified elsewhere — pesticides, catalysts, lab reagents, biodiesel. Goods frequently misclassified here but that belong elsewhere include:

Separate chemically defined compounds

Chapters 28, 29

Pharmaceutical preparations

Chapter 30

Fertilizers

Chapter 31

Plastics in primary form

Chapter 39

This list highlights common classification errors only — it is not exhaustive. For binding classification, work with a licensed customs broker or qualified trade compliance professional.

Top Trading Countries for Petroleum-Based Lubricant Additives HS 381121

India

Key Importer & Exporter

Mexico

Key Importer & Exporter

United States of America

Key Importer & Exporter

United Arab Emirates

Key Importer & Exporter

Frequently Asked Questions

What is HS code 381121?

HS code 381121 covers Lubricating oil additives; containing petroleum oils or oils obtained from bituminous minerals under the WCO Harmonized System. It belongs to Chapter 38 (Miscellaneous chemical products), Heading 3811, and represents the most specific level of classification that is harmonized internationally.

Is HS code 381121 the same in every country?

Which WCO edition does HS code 381121 belong to, and has it been reclassified?

How do I find the correct country-specific version of HS code 381121?