7601.10.60.45 - Of greater than 99.8 percent but less than 99.9 percent

This HTS category encompasses unwrought aluminum that is not alloyed and contains a specific purity level. The material classified here is aluminum with a purity of greater than 99.8 percent but less than 99.9 percent. This precise specification defines the chemical composition of the unwrought aluminum, distinguishing it from other forms of unalloyed aluminum based on its metallic content.

It is crucial to differentiate this category from its siblings. Specifically, HTS 7601.10.60.40 covers unwrought, unalloyed aluminum of 99.9 percent purity or greater, a higher standard of purity. Conversely, HTS 7601.10.60.90, "Other," is a residual category for unalloyed unwrought aluminum that does not meet the purity thresholds defined in the preceding subcategories. Therefore, classification hinges directly on the measured percentage of aluminum content.

As this is a leaf node within the HTS structure, there are no further subcategories. The classification is determined solely by the purity level of the unwrought aluminum. Practical examples of goods that would fall into this category include ingots, billets, or wire bars of unalloyed aluminum that have undergone refining processes to achieve a purity between 99.8% and 99.9%. Importers and exporters must rely on assay certificates or product specifications to accurately ascertain the aluminum content for correct classification.