---
title: "HSN Code for Slag, Ash, Residues: Mainly Zinc, Other | HSN 25289020 GST Rate"
description: "Find HSN and GST Rates for 25289020 related to Slag, Ash, Residues: Mainly Zinc, Other with BUSY Accounting - The reliable source for HSN and GST details in India."
canonical: "https://busy.in/hsn/hsn-25289020/"
---

# HSN Code 25289020: Slag, Ash, Residues: Mainly Zinc, Other

- [Section 05: Guide to HSN Section 05](https://busy.in/hsn/section-05/)
- [Chapter 25: Salt, Stones and Cement](https://busy.in/hsn/chapter-25/)
- [Sub-chapter 2528: Natural borates & boric acid](https://busy.in/hsn/sub-chapter-2528/)

## GST rates

| Description | CGST | SGST | IGST | CESS |
| --- | --- | --- | --- | --- |
| Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85% of h3bo3 calculated on the dry weight- other: natural calcium borates and concentrates thereof (whether or not calcined) | 2.5% | 2.5% | 5% | 0% |

## Frequently asked questions

### What products are classified under HSN 25289020 ?

It includes Superior Kerosene Oil (SKO)

### How much GST applies to Slag, Ash, Residues: Mainly Zinc, Other?

Under HSN 25289020, Slag, Ash, Residues: Mainly Zinc, Other attracts Varies when sold in taxable form. Describe the exact form on the invoice.

### Does packaging or labelling change the GST for Slag, Ash, Residues: Mainly Zinc, Other?

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 Slag, Ash, Residues: Mainly Zinc, Other?

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

### How should mixed supplies be billed when Slag, Ash, Residues: Mainly Zinc, Other is sold with other items?

Use separate invoice lines per HSN and apply the correct rate per line (e.g., Varies for Slag, Ash, Residues: Mainly Zinc, Other; Nil for exempt items if applicable).

### Do e‑way bill and e‑invoice apply for Slag, Ash, Residues: Mainly Zinc, Other?

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.

### Can we claim ITC on inputs used to trade Slag, Ash, Residues: Mainly Zinc, Other?

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