6903Refractory ceramic goods
HTS Code 6903 covers any article best defined as Articles of Stone, Plaster, Cement, Asbestos, Mica or Similar Materials; Ceramic Products; Glass and GlasswareCeramic productsOther refractory ceramic goods (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths, rods and slide gates), other than those of siliceous fossil meals or of similar siliceous earths: in the Harmonized Tariff Schedule — covering 3 sub-classifications.
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Relevant HTS Notes
Official USITC notes that may affect classification under HTS 6903.
Search CROSS Rulings for HTS 6903
See how Customs classified similar products. CBP's CROSS database holds the classification rulings that cite 6903.
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What does HTS code 6903 cover?
HTS code 6903 covers refractory ceramic goods (Other refractory ceramic goods (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths, rods and slide gates), other than those of siliceous fossil meals or of similar siliceous earths:), classified under Chapter 69 (Ceramic products) in the US Harmonized Tariff Schedule. There are 3 more specific sub-classifications under this code.
Primary Sources
The official documents behind the rates and tariffs on this page. Duties are worked out from them; check the legal text before you file.