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February 26, 2026

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Basics of GST

Dolomite GST Rates & HSN Codes Explained

In the industrial mineral sector, the importance of dolomite is immense. Ranging from being a flux in steel production to a soil conditioner in the agricultural sector and a filler in the glass industry, its uses are numerous. But for companies involved in the trading of this mineral, "technicalities" can often be more than just the chemistry of the mineral, but the complexity of taxation.

Understanding the Dolomite GST rate and HSN codes is essential for companies to stay on the right side of the law and minimize their tax outflows. Whether it is raw chips, fine powder, or calcined dolomite, the classification of these products by the government is essential for companies to claim their Input Tax Credit and avoid any legal hassles.

What Is Dolomite?

Dolomite mainly consists of the sedimentary origin. It has properties characteristic of limestone but also has higher amounts of magnesium and additional amounts of calcium. Also used in most of our industries; dolomite is often referred to as “magnesium limestone”. The properties of dolomite that are commonly accepted as advantages are that; it is extremely strong, resistant to heat, and dense.

You will find it being applied in different forms according to the requirements of the industry:

Raw Dolomite: These are typically crushed chips or lumps that are primarily used in the construction and iron industry.
Dolomite Powder: This is the powdered form of dolomite that is used in the production of paints, glass, and even as a fertilizer in the agricultural industry.
Calcined Dolomite: This is the form of dolomite that is "calcined" or heated to a high temperature to make it more reactive, which is a prerequisite for the steel melting industry.

Dolomite GST Rate in India

As of February 2026, the taxation of minerals is one of the most important areas of focus for the "GST 2.0" reform plan, which is striving to make the manufacturing sector simpler. For a long time, the Dolomite GST rate has been made normal to avoid tax cascading for the raw materials.

Currently, the normal GST rate for all types of dolomite is 5%.

This 5% rate is equally split for intra-state transactions:

CGST: 2.5%
SGST: 2.5%

For inter-state transactions, an IGST of 5% is levied. It is pertinent to mention that despite the recent council meetings, where most of the sin goods and luxury goods have seen an increase in rates, industrial materials like dolomite have continued to remain in the 5% category to facilitate the "Make in India" plan in the steel and infrastructure sectors.

Dolomite HSN Code Breakdown

The classification of the goods is the basic premise for GST compliance. If you have the wrong HSN code for your goods, you may well pay the right amount of tax; however, you may also be liable for payment of penalties for "misclassification" of the goods.

Dolomite is classified under Chapter 25 of the HSN Classification System as it is "Salt; sulphur; earth and stone; plastering materials (lime) and cement." The principal HSN Code for dolomite is 2518. The principal HSN Code for dolomite (2518) has eight different sub-codes based on the physical form of the dolomite:

Product Type	HSN Code	GST Rate
Dolomite, Not calcined or sintered (Raw/Crude)	2518 10 00	5%
Calcined or sintered dolomite	2518 20 00	5%
Dolomite Ramming Mix	2518 30 00	5%
Articles of Stone (containing Dolomite)	6815 91 00	12%

GST on Different Forms of Dolomite

The physical state of the dolomite mineral may give rise to confusion regarding the applicable Harmonised System code (HSN) and GST rate applicable to each of the respective tradeable forms of the mineral. A breakdown of the relevant HSN codes and applicable GST rates is outlined below:

1. Raw Dolomite (Lumps / Chips)

Raw dolomite remains GST taxable at 5%, regardless of whether the dolomite has been roughly or neatly cut into blocks or slabs. Crushed dolomite used for industrial purposes also remains GST taxable at 5%. However, crushed dolomite that is created specifically for use as concrete aggregates or as road construction materials may occasionally be assessed under HSN 2517;

However, the mineral itself will remain standardly classified by HSN 2518.

2. HSN Code for Dolomite Powder

Dolomite powder is widely used in the paint and other chemical industries. Dolomite powder, while having been 'processed' by way of grinding, remains classified by HSN 2518 10 00. The GST rate applicable to dolomite powder is 5%, provided that no other chemical feeds have been added that may alter how dolomite powder is defined as a mineral.

3. GST Rate Applicable to Calcined Dolomite

Calcined dolomite is produced by taking dolomite and breaking it down using high-temperature kilns. Not only is the calcination of dolomite one of the largest manufacturing processes, but the GST rate applicable to calcined dolomite (HSN 2518 20 00) is also set at 5%. The GST rate of 5% is designed to keep manufacturing costs low for producers of steel, who use complex manufactured re-fractory materials (calcined dolomite) as a key component of their products.

Also Check Out: Lubricating Preparations GST Rates and HSN Code 3403

Input Tax Credits (ITC): How they apply to Dolomite Businesses

The ability to claim ITC is one of the main benefits of being in the dolomite industry. Dolomite is a B2B product, which means that GST paid on the purchase of dolomite can be claimed as an offset against GST owed when selling products made from dolomite.

Manufacturers: Manufacturers can claim a 5% ITC on their purchase of raw dolomite, which offsets the GST they owe on finished goods (i.e., 18% or 12%) produced from dolomite (i.e., steel, ceramics).
Traders: For traders, they can also use a 5% ITC when purchasing dolomite, and charge customers 5% (tax only on value added to product), so they only pay tax on the value-added margin.
Documentation required to claim ITC: You need to obtain a valid tax invoice, with proper matching Dolomite HSN code, from your supplier. Your supplier must have a valid GSTN, and must have filed their GSTR-1, in order for the amount to appear in your GSTR-2B.

Conclusion

Identifying the GST figure for dolomite minerals is easy compared with other mineral products as the Government has decided to put the entire mineral in the lowest bracket i.e. 5%. Identifying the precise type of dolomite is crucial in order to classify the dolomite correctly and use the HSN code for the particular dolomite you are selling, whether it is in the form of raw blocks or calcined mixes.

By correctly identifying the type of product you are purchasing, you eliminate the risk of having issues in your supply chain and you will reduce the amount of friction that you will encounter if you are subject to a tax audit. As GST rates on minerals in India continue to stabilise until 2026, remaining aware of the current rate is your best strategy for your business to be successful.

FAQs

1. Does dolomite raw and dolomite powder differ in their GST rates?

There is no difference. They are both classified under the HSN code (2518 10 00) and therefore attract the same GST rate of 5%.

2. Can I claim ITC on purchasing dolomite from an unregistered mine?

If you purchase from an unregistered dealer, if you are required to pay tax under Reverse Charge Mechanism (RCM) on certain mining operations or if there was no tax levied to the seller, no ITC is available. It is advisable to always buy from registered GST dealers.

3. What is the GST rate for dolomite for agricultural use?

Although dolomite may be used to neutralize soil, it still retains a 5% GST rate for all dolomite regardless of how it is used. The GST rate is determined based on the description of the item (HSN Code), the way in which an item is used does not affect its GST, unless there is an exemption.

4. Is an e-way bill required for transporting dolomite?

Transportation of dolomite requires an e-way bill except where the value of the consignment exceeds ₹50000 (or the amount specified by the state) for which a Map on the E-Way Bill system will show a tracking number.

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