---
title: "HSN Code for Water Treatment Chemicals; Ion Exchanger | HSN 38249021 GST Rate"
description: "Find HSN and GST Rates for 38249021 related to Water Treatment Chemicals; Ion Exchanger with BUSY Accounting - The reliable source for HSN and GST details in India."
canonical: "https://busy.in/hsn/hsn-38249021/"
---

# HSN Code 38249021: Water Treatment Chemicals; Ion Exchanger

- [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 other: electroplating salts; water treatment chemicals; ion exchanger; correcting fluid; precipitated silica and silica gel; oil well chemical: electroplating salts | 9% | 9% | 18% | 0% |

## Frequently asked questions

### What products are classified under HSN 38249021 ?

It includes Other Plasticised PVC

### Can we claim ITC on inputs used to trade Water Treatment Chemicals; Ion Exchanger?

If your outward supply is taxable, eligible ITC is available subject to general restrictions. For exempt/Nil supplies, reverse credit per Rule 42.

### How much GST applies to Water Treatment Chemicals; Ion Exchanger?

Under HSN 38249021, Water Treatment Chemicals; Ion Exchanger attracts Varies when sold in taxable form. Describe the exact form on the invoice.

### How should mixed supplies be billed when Water Treatment Chemicals; Ion Exchanger is sold with other items?

Use separate invoice lines per HSN and apply the correct rate per line (e.g., Varies for Water Treatment Chemicals; Ion Exchanger; Nil for exempt items if applicable).

### Do e‑way bill and e‑invoice apply for Water Treatment Chemicals; Ion Exchanger?

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.

### Does packaging or labelling change the GST for Water Treatment Chemicals; Ion Exchanger?

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 Water Treatment Chemicals; Ion Exchanger?

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