2822.00.00.90 - Other

This HTS category, "Other," within the broader classification of Cobalt oxides and hydroxides; commercial cobalt oxides, serves as a residual category for cobalt compounds that do not fit into more specific subheadings. It encompasses various forms of cobalt oxides and hydroxides that are not explicitly defined elsewhere in the tariff schedule. This includes, but is not limited to, less common or specifically processed cobalt oxides and hydroxides used in diverse industrial applications such as pigments, catalysts, and battery materials.

Distinguishing this category from its sibling, 2822.00.00.10, is crucial. The sibling specifically enumerates Cobalt(II, III) oxide, also known as cobalt tetroxide. This residual category, therefore, covers all other cobalt oxides and hydroxides not meeting the specific chemical composition or designation of cobalt tetroxide. Classification hinges on the precise chemical identity and formulation of the imported substance.

As this is a leaf node within the HTS structure, there are no further subcategories to introduce. All qualifying cobalt oxides and hydroxides, apart from cobalt tetroxide, will be classified under this "Other" subheading. Importers and customs brokers must carefully review the product's chemical specifications and compare them against the definitions of more specific headings within Chapter 28 to ensure accurate classification.