HS Code 381190: Oxidation and gum inhibitors, viscosity improvers, anti-corrosive preparations, other prepared additives for mineral oils or liquids used as mineral oils (including gasoline), n.e.c. in heading no. 3811
What is HS Code 381190
HS Code 381190 covers Oxidation and gum inhibitors, viscosity improvers, anti-corrosive preparations, other prepared additives for mineral oils or liquids used as mineral oils (including gasoline), n.e.c. in heading no. 3811. 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.
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What does HS Code 381190 Oxidation and gum inhibitors, viscosity improvers, anti-corrosive preparations, other prepared additives for mineral oils or liquids used as mineral oils (including gasoline), n.e.c. in heading no. 3811 Cover?
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.
