Because this grouping is a catch-all for diverse mineral articles, the corresponding HTS classifications span multiple chapters with very different duty rates, admissibility requirements, and potential trade-remedy exposure. A friction material, a mica sheet, and a graphite electrode each require separate classification analysis — there is no single tariff treatment for the group.

Potentially yes. Articles containing asbestos face strict import and use restrictions under EPA regulations, and certain graphite or carbon products may be subject to antidumping orders. Importers should conduct a material-content review alongside HTS classification to identify any admissibility or trade-remedy issues before shipment.