8110 - Antimony and articles thereof, including waste and scrap:

This HTS category, 8110, encompasses antimony and articles manufactured from this base metal. Antimony is a metalloid primarily used as an alloying agent to increase the hardness and durability of other metals. This section includes not only pure antimony in various forms but also articles manufactured with antimony as a primary component, as well as waste and scrap materials containing antimony.

When classifying within Chapter 81, which covers "Other base metals; cermets; articles thereof," it's crucial to distinguish this category from other base metals like aluminum (2805.30), lead (7801), or zinc (7901). Unlike those categories, 8110 specifically focuses on antimony and its associated products, irrespective of their specific application or final form. The material composition of the article is the primary determinant for classification under this heading.

Within HTS 8110, three primary subcategories exist to further refine the classification of antimony-related goods. These are unwrought antimony and powders (8110.10.00.00), which cover antimony in its most basic, unrefined forms or as fine particulate matter. Waste and scrap (8110.20.00.00) are specifically designated for recyclable materials containing antimony. Finally, "Other" (8110.90.00.00) serves as a residual category for all other articles of antimony that do not fit into the previously defined subcategories, such as manufactured articles with a significant antimony content.