7901.20.00.00 - Zinc alloys

This HTS category, **7901.20.00.00 - Zinc alloys**, encompasses zinc that has been intentionally combined with one or more other elements to create a material with improved properties such as increased strength, hardness, or castability. These alloys are typically produced in a primary form, such as ingots, pigs, or cast shapes, prior to further manufacturing. The key defining characteristic is the presence of zinc as the predominant metal, with other elements intentionally added for specific metallurgical benefits.

This category is distinct from its sibling, **Zinc, not alloyed (7901.10)**, which covers pure zinc or zinc with minor impurities not intentionally added to alter its properties. The presence and specific composition of alloying elements are the primary differentiators for classification. For instance, common zinc alloys include Zamak (zinc, aluminum, magnesium, and copper) and brass (copper and zinc, though often classified under copper alloys if copper is predominant).

As this node represents a leaf category within the HTS, there are no further subdivisions. Classification under 7901.20.00.00 is based on the confirmation that the unwrought zinc material is indeed an alloy, distinguished by its intentional compositional additions beyond pure zinc. This often requires examination of available technical documentation or certificates of analysis to verify the presence and proportion of alloying elements.