9902.10.41 - Mixtures of (acetato) pentammine cobalt dinitrate (CAS No. 14854-63-8) with a polymeric or paraffinic carrier (provided for in subheading 3815.90.50)

This HTS category, 9902.10.41, specifically covers mixtures containing (acetato) pentammine cobalt dinitrate (CAS No. 14854-63-8) when these mixtures are presented with a polymeric or paraffinic carrier. The crucial defining characteristic is the combination of this specific cobalt compound with a carrier material, indicating a formulated product rather than the pure chemical itself. These mixtures are typically intended for specific industrial applications where controlled release or dispersion of the cobalt compound is desired.

Distinguishing this category from its siblings within Chapter 99, which deals with temporary legislation and special provisions, is essential. While siblings might cover other temporary import restrictions or modified classifications, 9902.10.41 is highly specific to this particular mixture. It's important to note that the parenthetical reference to subheading 3815.90.50 signifies that if these mixtures are not otherwise specifically classified under Chapter 99, they would typically fall under the broader category of chemical products and preparations in Chapter 38.

As this is a leaf node, there are no further subcategories within 9902.10.41. Classification under this code is definitive based on the presence of both (acetato) pentammine cobalt dinitrate and a polymeric or paraffinic carrier. Importers should ensure that their goods precisely match this description to correctly apply this specialized tariff provision.