Q3HSN Code 2521
Limestone flux; limestone and other calcareous stones
Limestone flux; limestone and other calcareous stones, of a kind used for the manufacture of lime or cement
GST rate
5%
Codes under 2521
| Code | Description | GST rate |
|---|---|---|
| 2521 00 | Limestone flux, limestone and other calcareous stones, of a kind used for the manufacture of lime or cement: | 5% |
| 2521 00 10 | Limestone flux (l.d., below 1% sio2) | 5% |
← Chapter 25: Salt, cement, lime, sand and stone
Related HSN codes
Frequently Asked Questions
What is the HSN code for limestone flux; limestone and other calcareous stones?
The HSN code for limestone flux; limestone and other calcareous stones is 2521, under Chapter 25 (Salt, cement, lime, sand and stone).
What is the GST rate on limestone flux; limestone and other calcareous stones?
Limestone flux; limestone and other calcareous stones is taxed at 5% GST under HSN code 2521.
How many digits of the HSN code go on a GST invoice?
It depends on your turnover in the previous financial year: businesses above ₹5 crore generally show 6 digits (8 for certain specified goods), and smaller businesses show 4 digits on B2B invoices. Check the current e-invoicing/HSN notification for the exact threshold that applies to you.
Rates as per Notification No. 9/2025-Central Tax (Rate), as amended, as of 7 October 2026. For guidance only — verify with your tax advisor.