HSN code 381121
Sub-heading in chapter 38 — Miscellaneous chemical products
Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers… – containing petroleum oils or oils obtained from bituminous minerals
Classification
| Code type | HSN — Harmonized System of Nomenclature |
|---|---|
| Level | Sub-heading (6 digits) |
| Section | Section VI — Chemical and allied products |
| Chapter 38 | Miscellaneous chemical products |
| Heading 3811 | 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 |
| Sub-heading 381121 | Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers… – containing petroleum oils or oils obtained from bituminous minerals |
1 code under HSN 381121
Using HSN 381121 in GST
On GST invoices, a business with annual turnover up to ₹5 crore must show at least the first 4 digits (3811) on B2B invoices, and a business above ₹5 crore must show 6 digits (381121) on all invoices. The full 8-digit code is used for imports and exports.
The GST rate depends on the exact goods or service and any conditions in the rate notification, so it is not listed here. Check the official CBIC GST rate finder, then work out the tax with the GST calculator or make a bill with the GST invoice generator.
Frequently asked questions
What is HSN code 381121?
HSN code 381121 is the sub-heading for: Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers… – containing petroleum oils or oils obtained from bituminous minerals.
What is the GST rate for HSN 381121?
GST rates are set by CBIC rate notifications and can depend on conditions, so check the CBIC GST rate finder for HSN 381121 before invoicing.
How many digits of HSN 381121 should I write on my invoice?
Up to ₹5 crore turnover: at least 4 digits (3811) on B2B invoices. Above ₹5 crore: 6 digits (381121) on all invoices.