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March 30, 2026

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Sulphur GST Rate & HSN Code 2503: A Complete Guide

Sulphur comes in a variety of grades and has many industrial uses, figuring out the right GST rate for sulphur can sometimes cause a headache at the billing counter. By importing crude sulphur to utilize in your fertiliser manufacturing unit or by selling sticks of refined sulphur to utilize in a chemical process, the first step to achieving compliance with GST is to ascertain the correct HSN classification of your product. We will present the information you require in a simple and straightforward manner to assist you in maintaining accurate accounts and running your business smoothly.

What Is Sulphur? An Industrial Powerhouse

Sulphur is a non-metallic chemical that exists in the form of natural deposits and by-products of petroleum and natural gas refining. It is called the "king of chemicals" as the consumption of sulphuric acid, which is the primary derivative of sulphur, is usually an important criterion for measuring the health of a country's industrial sector.

In India, the primary users of sulphur are the agricultural and chemical sectors. The GST Council has classified it under special HSN codes due to the high volumes of interstate and international trade of the product.

HSN Code 2503 Explanation

When it comes to Goods and Services Tax, HSN code plays a vital role as it is a common language used for GST. In the case of sulphur, the first level of HSN code is 2503.

HSN code 2503 includes "Sulphur of all kinds, other than sublimed sulphur, precipitated sulphur, and colloidal sulphur."

The next part of the HSN code where people generally go wrong is that not all types of sulphur fall under code 2503. If you are dealing with "Precipitated" or "Colloidal" types of sulphur, which are used in pharmaceutical applications or high-end quality rubber vulcanization, then you must look at Chapter 28, i.e., HSN code 2802. However, for the majority of the types of sulphur, i.e., crude and unrefined types, HSN code 2503 is used.

Also Check Out: GST Rates & HSN Code for Quartz:

HSN 2503 Classification Table

HSN Code	Description
2503 00	Sulphur of all kinds (other than sublimed, precipitated, and colloidal)
2503 00 10	Sulphur, crude or unrefined
2503 00 90	Other (Refined sulphur, etc.)

Sulphur GST Rate in India

The existing GST rates for Sulphur in India are fixed at a level that provides an opportunity for the industry to keep raw materials at a low cost. The existing GST rates for goods classified under HSN 2503 are as follows:

GST Rate: 5%
IGST: 5%
CGST + SGST: 2.5% + 2.5%

The GST rates for Sulphur are low at 5% as compared to the existing rates for most goods at 12% or 18%. This is mainly due to the fact that Sulphur is a raw material for the fertilizer industry. The government does not want the cost of fertilizers to rise for farmers.

Also Check Out: GST Rates and HSN Code 2508

Types of Sulphur Covered Under HSN 2503

For the purpose of understanding the exact amount of tax to be paid, it is important to identify what comes under this particular category. HSN 2503 is a broad category but has specific exclusions. Some of the types of sulphur that fall under this category:

1. Crude or Unrefined Sulphur

This type of sulphur comes in raw form and is often obtained as a by-product of the desulphurization of natural gas or oil. It may be found in the form of "slate," "granules," or "bulk."

However, as long as it has not been chemically refined to alter its composition, this type of sulphur remains in the 5% GST bracket.

2. Refined Sulphur

Even when this type of sulphur has been melted and purified to remove impurities, it remains in the HSN 2503 00 90 category unless it has been "sublimed" or "colloidal." This type of sulphur may be found in the form of sticks, cakes, or powder for general industrial use.

3. Recovered Sulphur

Today, in the wake of environmental concerns, many refineries "recover" sulphur to prevent pollution.

Uses of Sulphur in The Industries

Being aware of the industrial applications of sulphur assists in justifying our classifications for an audit. If your business qualifies for a GST rate on sulphur of 5%, then it will probably fit into one of these categories:

Production of Fertilizers: Approximately 90% of all sulphur produced is transformed into sulphuric acid which will be utilised to produce phosphor fertilisers, mainly DAP and NPK.
Manufacture of Chemicals: Sulphur is involved in the production of detergents, synthetic fibres and colours.
Vulcanization of Rubber: Sulphur is an essential predicate in rubber!
Refinement of Sugar: Sulphur dioxide is used as a bleaching agent to whiten the product in the sugar industry.
Pulp and Paper: Sulphur has a role in the process to decompose wood to produce pulp.

GST Compliance & Classifying Taxation

If tax authorities discover an error around the classification of a good then they will issue a ''Notice of Under-Reporting''. Below are some tips to help you comply with regulations:

Examine Purity/Forms: If your sulphur is categorized as either Sublimated or Precipitated, you’ll need to re-classify GST rate from HSN 2503 on to HSN 2802 which is subject to a 12% GST compared to 5% GST for Crude Sulphur.
Input Tax Credit: Sulphur is classified as raw material therefore manufacturers can claim full Input Tax Credit on purchasing sulphur at the 5% GST rate. You must verify that your supplier’s GSTIN (Goods & Services Tax Identification Number) is both activated and that their GSTR-1 (Goods & Services Tax Returns) has been submitted or otherwise your Input Tax Credit will be blocked.
Documentation for Imports: When you are importing sulphur especially from the Middle-East, ensure that the Bill of Entry matches HSN 2503 regardless of what HSN is shown on the international invoice compared to GST Portal in India as this may delay shipping of goods.

Read More: HSN Code 8484

Conclusion

Not only does getting your sulphur GST rate right mean paying the tax, but it also means being competitive in your prices and having peace of mind in being GST compliant. By sticking to HSN code 2503 for your standard industrial and crude sulphur requirements, you get to enjoy the lower 5% tax slab. However, do keep an eye out for the "specialty" grades of sulphur, namely sublimed and colloidal sulphur, as this might attract a higher rate of tax for your sulphur GST requirements.

Always make sure your invoices reflect the HSN code correctly, and your records accurately reflect the physical form of the mineral. In case of doubt, your best defense in case of a GST audit would be to conduct a simple purity test or technical data sheet.

FAQs

1. Does the use of sulfur as a fertilizer or non-fertilizer affect the GST applicable to that sulfur?

No. The GST applicable to sulfur is determined based solely on its HSN classification (Ahmad) i.e. based on the physical characteristics and quality of the product. Therefore, when sulfur is classified under HSN 2503, the rate of GST will be 5% no matter whether the sulfur is to be used in a fertilizer facility or in a matchstick facility.

2. What HSN classification will sulphur powder utilize?

Generally, sulphur powder will utilize HSN 2503 00 90 however, if sulphur powder is Precipitated sulphur (which is a very fine powder produced chemically) the HSN number is 2802.

3. Is there any additional Cess that would be applicable to GST on sulphur apart from the GST rate?

Currently there is no additional Compensation Cess that would apply to sulphur under HSN 2503, only the 5% GST needs to be calculated.

4. What HSN classification should be used for importing sulphur?

Most bulk industrial commercial imports of sulphur will utilize HSN 2503 00 10 (Crude) and HSN 2503 00 90 (Other), however you should check with your Customs House Agent to ensure the product is consistent with the lab test or lab report.

5. Can I use the input tax credit for sulphur I used to manufacture taxable supplies?

Yes, provided that sulphur has been used to manufacture taxable outward supplies, you may utilize the 5% GST that you paid for sulphur to claim Input Tax Credit.

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