Fines (including sand)
Andalusite, kyanite and sillimanite, fines including sand
HSN 2508 50 32 (andalusite, kyanite and sillimanite fines, including sand) is not covered by a Bureau of Indian Standards Quality Control Order and carries no Partner Government Agency clearance requirement at the tariff-line level. Import follows the standard customs procedure: Importer-Exporter Code (IEC), bill of entry, commercial invoice, packing list. Calcined or otherwise processed forms of these aluminosilicate minerals, or chamotte and mullite classified elsewhere in Chapter 25, may attract separate compliance considerations.
The principal importer risk at this tariff line is misclassification: calcined andalusite, kyanite, or sillimanite and their lump or grain forms are classified under distinct tariff lines within Chapter 25, and customs re-classification to a line carrying compliance triggers retrospective obligations including detention. Verify the product's physical form — fines versus lumps, raw versus calcined — and intended end use against the customs tariff before relying on the absence of compliance at this line.