7601.20.90 - Other

This category, HTS 7601.20.90, encompasses unwrought aluminum alloys that do not meet the specific composition criteria of other listed subcategories. It broadly covers various aluminum alloy forms that are in an unworked state, such as ingots, pigs, and billets, and are intended for further processing. These alloys are characterized by their composition of aluminum combined with other metallic elements to achieve specific properties like increased strength, hardness, or corrosion resistance.

This subheading is distinct from its sibling category, HTS 7601.20.60.00, which specifically covers aluminum alloys containing 25 percent or more by weight of silicon. Therefore, HTS 7601.20.90 applies to all other unwrought aluminum alloys not classified under that silicon-specific provision, provided they are not pure unwrought aluminum (which would fall under HTS 7601.10).

Within this category, further distinctions are made to refine classification. Subcategories exist to identify specific types of alloys, such as aluminum vanadium master alloy (HTS 7601.20.90.30). The remaining subdivisions within this "Other" category will then capture the remaining diverse range of unwrought aluminum alloys not otherwise specified, based on their precise chemical composition and intended use.