---
title: "HSN Code for Naphthenic Acids | HSN 38242010 GST Rate"
description: "Find HSN and GST Rates for 38242010 related to Naphthenic Acids with BUSY Accounting - The reliable source for HSN and GST details in India."
canonical: "https://busy.in/hsn/hsn-38242010/"
---

# HSN Code 38242010: Naphthenic Acids

- [Section 06: Guide to HSN Section 06](https://busy.in/hsn/section-06/)
- [Chapter 38: Miscellaneous Chemical Products](https://busy.in/hsn/chapter-38/)
- [Sub-chapter 3824: Chemical products for moulds & cores](https://busy.in/hsn/sub-chapter-3824/)

## GST rates

| Description | CGST | SGST | IGST | CESS |
| --- | --- | --- | --- | --- |
| Prepared binders for foundry moulds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included naphthenic acids, their water-insoluble salts and their esters: copper naphthenate | 9% | 9% | 18% | 0% |

## Frequently asked questions

### What products are classified under HSN 38242010 ?

It includes Case Hardening Compound

### How should mixed supplies be billed when Naphthenic Acids is sold with other items?

Use separate invoice lines per HSN and apply the correct rate per line (e.g., Varies for Naphthenic Acids; Nil for exempt items if applicable).

### How much GST applies to Naphthenic Acids?

Under HSN 38242010, Naphthenic Acids attracts Varies when sold in taxable form. Describe the exact form on the invoice.

### Does packaging or labelling change the GST for Naphthenic Acids?

For food/agri items, GST can be 5% when not fresh/chilled and sold as pre‑packaged & labelled; otherwise often Nil. For non‑food items, rates depend on the specific sub‑heading.

### Any common misclassification issue with Naphthenic Acids?

Use the exact HSN and describe the form/grade. For multi‑line invoices, apply the rate per line to avoid wrong tax collection.

### Do e‑way bill and e‑invoice apply for Naphthenic Acids?

e‑Way bill is needed above ₹50,000 consignment value (subject to exemptions). e‑Invoicing is turnover‑based (presently AATO > ₹5 crore) for B2B supplies.