HTS Code: 2508 — Other Clays, Andalusite, Kyanite, Sillimanite and Related Minerals
HTS US: 2508.XX.XXXX Description This heading encompasses a variety of specialized clays and refractory minerals that are widely used in...
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HTS Code: 2507 — Kaolin and Other Kaolinic Clays
HTS US: 2507.00.00.00 Description This heading pertains to kaolin and other kaolinic clays, which are naturally occurring, fine-grained minerals primarily...
HTS Code: 2506 — Quartz and Quartzite Products
HTS US: 2506.XX.XXXX Description This heading covers quartz in various forms except natural sands, as well as quartzite, whether roughly...
HTS Code: 2505 — Natural Sands Including Silica Sands
HTS US: 2505.XX.XXXX Description HTS Code 2505 encompasses natural sands of all kinds, whether or not colored, excluding metalbearing sands...
HTS Code: 2504 — Natural Graphite Classification and Details
HTS US: 2504.XX.XXXX Description HTS Code 2504 covers natural graphite, a crystalline form of carbon widely used in industrial applications...
