Zircon or zircon-mullite refractories

Zircon or zircon-mullite refractory ceramic goods

NO PGA · STANDARD CUSTOMS PROCEDURE

HSN 6903 90 10 (zircon or zircon-mullite refractories) 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 refractory ceramic goods under Chapter 69 — particularly those classified by silica, magnesia, or alumina content — may fall under sibling tariff lines that carry distinct compliance obligations.

No partner government agency notification covers this tariff line.

A word of counsel

The principal importer risk at this tariff line is misclassification: refractory goods are sub-classified by mineralogical composition, and a customs re-examination that determines the product is better described by a more specific heading — such as a high-alumina or basic refractory under Chapter 69 — triggers retrospective compliance and potential detention. Verify the precise zircon and mullite content percentages in the product specification against the customs tariff before relying on absence of compliance.

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Frequently asked

Does HSN 6903 90 10 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 refractory goods contain a different primary mineral composition?

Refractory ceramics classified by silica, magnesia, alumina, or other dominant mineral content fall under separate tariff lines within Chapter 69 that may carry their own compliance requirements, and re-classification by customs to such a line triggers retrospective compliance.

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