Other
Refractory bricks and blocks, high-alumina or silica composition, other
HSN 6902 20 90 (other refractory bricks, blocks, tiles and similar goods containing more than 50% alumina or silica by weight) 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 within Chapter 69 — particularly those classified by a more specific alumina or magnesia threshold — may fall under sibling tariff lines that carry compliance obligations.
The absence of compliance at this tariff line turns on precise composition: refractory goods containing magnesia, chrome, or other specified oxides are classified under separate subheadings within heading 6902 and may attract distinct requirements. Re-classification by customs on examination — based on actual alumina, silica, or other oxide content — triggers retrospective compliance and potential detention. Importers should obtain and retain the manufacturer's certified chemical composition analysis before filing the bill of entry.