Marine

Marine gypsum or anhydrite, naturally occurring

NO PGA · STANDARD CUSTOMS PROCEDURE

HSN 2520 10 20 (marine gypsum or anhydrite) 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 gypsum and plaster products classified elsewhere in Chapter 25 may carry distinct compliance obligations, making precise product characterisation essential before shipment.

No partner government agency notification covers this tariff line.

A word of counsel

The absence of compliance at this tariff line does not extend to calcined or processed gypsum products classified within Chapter 25 as plasters, which may attract quality or standards obligations. Re-classification on customs examination — for instance, where marine gypsum is found to be partially calcined — triggers retrospective compliance and potential detention pending resolution. Importers should retain laboratory certificates confirming the raw, uncalcined nature of the product to defend classification at examination.

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Frequently asked

Does HSN 2520 10 20 require any pre-import registration?

A valid Importer-Exporter Code is required for any commercial import; no product-specific registration applies to this tariff line.

What changes if the gypsum has been calcined or processed into plaster?

Calcined gypsum and plaster products are classified under a different tariff line within Chapter 25 and may attract compliance obligations absent from this raw-mineral line.

Last verified against gazette notifications: 2026-05-16. Source: BIS / DGFT / Indian Customs CUSDATA.