Mullite bricks

Mullite bricks, refractory ceramic constructional goods

NO PGA · STANDARD CUSTOMS PROCEDURE

HSN 6902 20 50 (Mullite bricks) 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. Other refractory ceramic constructional goods within Chapter 69 — particularly those with differing alumina or silica compositions, or those serving specialised industrial furnace applications — may be classified under sibling tariff lines that carry distinct compliance obligations.

No partner government agency notification covers this tariff line.

A word of counsel

Mullite bricks are classified by composition — more than 50% alumina, silica, or a mixture — and a product that falls outside that threshold may be re-classified by customs to a different tariff line within heading 6902 or elsewhere in Chapter 69. Re-classification on examination triggers retrospective compliance and risks detention pending resolution. Importers should verify the precise oxide composition and fired density of each consignment against the customs tariff before relying on this tariff line.

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Frequently asked

Does HSN 6902 20 50 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 bricks contain a different oxide composition?

Refractory bricks with an alumina or silica content at or below 50% by weight are classified under a different subheading within Chapter 69 and may attract separate compliance requirements.

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