HSN Codes · Chapter 25: Salt, Sulphur, Earths, Stone, Cement

HSN Code 251010

Natural calcium phosphates, natural aluminium calcium phosphates and phosphatic chalk — unground

Typical GST rate

Varies

Depends on sub-classification

Type

Goods

HSN classification

Code level

6-digit

Sub-heading

Reading code 251010

The first two digits (25) place this code in chapter 25 — Salt, Sulphur, Earths, Stone, Cement. Heading 2510 groups the product family, and the remaining digits pin down this specific 6-digit classification. Remember: you can never invent a shorter code by truncating a longer one — only codes that exist in the official tariff are valid.

Salt, natural stone, sand, gypsum, lime, and cement. Cement attracts the 28% slab — a major line item for construction businesses.

Parent heading

2510 — Natural calcium phosphates, natural aluminium calcium phosphates and phosphatic chalk

More specific codes under 251010

  • 25101010 — Natural calcium phosphates, natural aluminium calcium phosphates and phosphatic chalk — unground — natural calcium phosphate
  • 25101020 — Natural calcium phosphates, natural aluminium calcium phosphates and phosphatic chalk — unground — natural aluminium calcium phosphate
  • 25101030 — Natural calcium phosphates, natural aluminium calcium phosphates and phosphatic chalk — unground — natural calcium phosphate apatite
  • 25101090 — Natural calcium phosphates, natural aluminium calcium phosphates and phosphatic chalk — unground — other

Related codes in heading 2510

  • 251020 — Natural calcium phosphates, natural aluminium calcium phosphates and phosphatic chalk — ground

Frequently asked questions

The GST rate under 251010 depends on the specific item and applicable notifications. Check the classification with our HSN code finder and confirm the rate before invoicing.
Businesses with annual aggregate turnover of ₹5 crore or more must report at least 6 digits on e-invoices and e-way bills; below ₹5 crore, 4 digits is the B2B minimum. Exports require 8 digits.
Every line item on a GST tax invoice carries its HSN code alongside the description, quantity, taxable value, and tax breakup. The code also flows into your GSTR-1 HSN summary and e-way bills.

Related tools & guides

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