Containing by weight more than 50% of free carbon
Refractory ceramic goods containing more than 50% free carbon
HSN 6903 10 00 (refractory ceramic goods containing by weight more than 50% of free carbon) 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 goods within Chapter 69 — particularly those based on alumina, silica, or magnesia compositions — may attract distinct tariff classification and, depending on the product, closer regulatory scrutiny.
The principal risk at this tariff line is misclassification: refractory ceramic articles with a lower free-carbon content, or those composed primarily of alumina or magnesia, are classified under separate subheadings within Chapter 69 and may carry different duty rates. Customs re-classification on examination triggers retrospective duty recovery and potential detention pending resolution. Verify the tested free-carbon content by weight against the relevant material specification before finalising the tariff declaration.