2833.29.10.00 - Of cobalt

This HTS category, 2833.29.10.00, specifically covers sulfates where the primary metal component is cobalt. These compounds are inorganic salts of sulfuric acid in which cobalt is the essential cation. Examples include cobalt sulfate, often appearing as a pink or red crystalline solid, and other cobalt-containing sulfate compounds. The classification hinges on the presence of cobalt as the defining metallic element within the sulfate structure.

Distinguishing this category from its siblings is crucial for accurate classification. Unlike categories such as 2833.29.20.00 (of iron), 2833.29.30.00 (of vanadium), 2833.29.40.00 (of chromium), or 2833.29.45.00 (of zinc), this classification is exclusively for sulfates containing cobalt. The 2833.29.51 category for "Other" sulfates would encompass any other metallic sulfates not specifically enumerated in the preceding subheadings.

As a leaf node, this classification does not have further subdivisions. Therefore, the primary focus for classification within 2833.29.10.00 is the definitive identification of cobalt as the metallic element in the sulfate compound. This ensures that all cobalt sulfates are correctly accounted for, separate from sulfates of other metals, maintaining the integrity of customs data and tariff application.