Other (includes processed and ground)
Bentonite, processed or ground (other than crude)
HSN 2508 10 90 (bentonite — processed and ground) 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, bill of entry, commercial invoice, packing list. Other minerals and clays within Chapter 25 — and processed mineral-based products in Chapters 26 and 28 — may attract distinct compliance depending on processing state and end use.
The principal importer risk at this tariff line is misclassification: crude or unprocessed bentonite is classified separately within the same subheading, and bentonite-based preparations formulated for a specific end use — drilling fluids, foundry binders, or cat litter — may attract reclassification into a downstream chapter that carries compliance obligations. Customs re-examination of the processing state or intended use can trigger retrospective duty recovery and detention pending resolution. Product specification documentation — degree of processing, particle size, and declared use — should accompany every shipment.