2830.90.15.00 - Other zinc sulfide

This HTS category, 2830.90.15.00, specifically covers zinc sulfide that does not meet the stringent purity requirements for luminescent grade material. It encompasses zinc sulfide in various forms and purities, excluding those designated for specialized luminescent applications. This classification is appropriate for zinc sulfide used in broader industrial, chemical, or manufacturing processes where extremely high purity is not a critical determining factor.

This classification is distinguished from its sibling category, 2830.90.10.00, which is reserved for zinc sulfide with a purity of 99.99 percent or more by weight, specifically intended for luminescent applications. It also differs from 2830.90.20.00, which pertains to cadmium sulfide, a different metallic sulfide compound. Furthermore, it is distinct from the residual category 2830.90.90.00, which serves as a catch-all for other sulfides and polysulfides not otherwise specified.

As this is a leaf node in the HTS structure, there are no further subcategories under 2830.90.15.00. Classification within this code is therefore definitive based on the material being zinc sulfide and not fitting the specific criteria of the luminescent grade sibling or other related sulfide entries.