2620.30.00.20 - Lead content

This classification, HTS Code 2620.30.00.20, specifically covers slag, ash, and residues that are not derived from the manufacture of iron or steel, and which contain predominantly copper compounds. These materials are typically byproducts of metallurgical processes, such as smelting or refining, where copper is a primary element of recovery or is present in significant quantities within the waste streams. The classification hinges on the principal metal content, identifying those residues where copper is the dominant metal compound present.

This category is distinct from its siblings by its focus on copper as the primary metal. For example, 2620.30.00.10 covers residues where copper content is not the main component, but rather some other metal is dominant. Similarly, 2620.30.00.30, 2620.30.00.40, and 2620.30.00.50 differentiate based on the principal content being zinc, silver, or gold, respectively. The key determinant for this subheading is the metallurgical analysis confirming copper as the foremost metal present in the ash, slag, or residue.

As this is a leaf node within the HTS structure, there are no further subcategories. Therefore, classification decisions for this heading will rely on a thorough chemical analysis of the material to ascertain the dominant metal content, as well as confirmation that the material originates from slag, ash, or residues not related to iron or steel production. Importers and exporters must ensure their documentation accurately reflects the composition and origin of these materials to facilitate correct customs processing.