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HS 3811.90 Subheading · Chemicals & Allied Industries

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

HS subheading 3811.90 identifies 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 — a six-digit classification under Chapter 38 used to set duty and paperwork.

India exports 2024
$146M
Share of Chapter 38
2.2%
Rank in its heading
#1 of 5

Source: UN Comtrade — India's reported merchandise exports to the world, 2024.

Sourcing this category from India

HS 3811.90 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 leaf classification, so it sets the duty line directly for goods that fall under it. India's diversified chemical sector exports a broad range of specialty and composite chemical products. India exported $146M under this code worldwide in 2024, about 2.2% of all Chapter 38 exports, ranking #1 of 5 lines in its heading (UN Comtrade).

How to read this code

3811.90 is the six-digit HS subheading for oxidation and gum inhibitors, viscosity improvers,. To clear customs your destination country extends it to a full 8–10 digit code and assigns the duty rate. India's preferential trade agreements (UAE CEPA, Australia ECTA, and others) can reduce or zero out that duty on many chemicals & allied industries lines — check our import guides for your market.

Top destinations for Chapter 38 exports

India's largest buyers of goods in this HS chapter in 2024, ranked by export value.

#1 USA $1.24B
#2 Brazil $1.07B
#3 Japan $449.1M
#4 United Arab Emirates $222.3M
#5 China $201.8M

Chapter-level destination mix — your specific HS line may skew differently. Source: UN Comtrade, 2024.

More codes in 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

Jump to the other codes classified under 38.11 — hover a code for its description.

Working out import duty for HS 3811.90 into your market? See full duty context and India-vs-rivals comparisons in our India comparison guides and export resource hub.

Indian exporters in this category

Established export houses with relevant HS focus. Listings are compiled from public records — run your own due diligence.

Browse the full exporter directory →
Last updated 28 Jun 2026 Figures are indicative sourcing benchmarks compiled from exporter quotes, India trade-scheme notifications and public customs tariffs. Confirm live pricing and HS classification before contracting.
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