Steel manufacturers and glass producers source this grade of limestone to lower melting temperatures and improve melt fluidity in their furnaces. It is also employed in cement kilns as a supplementary raw material.
HSN code 25210010 is classified as Free under India's DGFT ITC(HS) export policy — no export license is required.
This product may be freely exported/imported from India without a license.
HSN Code Details
Before loading, verify that the limestone flux is dry and free‑flowing, as moisture can cause clumping during transport. It is a fine, low‑density calcium carbonate material used primarily for its fluxing properties.
Pack the product in sealed, moisture‑resistant bulk bags or containers, and attach a certificate of analysis; note that it is freely exportable from India without a licence.
Related HSN Codes (Heading 2521)
Frequently Asked Questions
No. HSN 25210010 is classified as Free under DGFT ITC(HS) policy, so it can be exported from India without an export license or permit.
HSN 25210010 designates limestone flux used to aid melting processes in metallurgical and glass‑making industries.
HSN 25210010 falls under Chapter 25 and Heading 2521 of India's customs tariff schedule.
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