7601.10.60.90 - Other

This HTS category, 7601.10.60.90, encompasses unwrought aluminum that is not alloyed, and which does not fall into the specific purity levels defined by its sibling categories. It serves as a residual classification for aluminum in its primary, unworked form when its aluminum content is below the thresholds specified for other classifications within this section.

This classification is distinguished from its siblings, 7601.10.60.40 ("Of 99.9 percent aluminum or greater") and 7601.10.60.45 ("Of greater than 99.8 percent but less than 99.9 percent"), by the absence of specific minimum purity requirements. Therefore, unwrought, unalloyed aluminum with a purity level below 99.8 percent would fall under this "Other" designation.

As a leaf node, this category has no further subdivisions. Classification into this subcategory is primarily determined by the absence of meeting the higher purity standards of its direct siblings, focusing on the overall composition of the unwrought aluminum product rather than its specific application or further processing.