2620.29.00 - Other

This HTS category, 2620.29.00, encompasses "Other" residues containing arsenic, metals, or their compounds, specifically within the subgroup of slag, ash, and residues not originating from the manufacture of iron or steel, and primarily containing lead. This classification serves as a residual category for lead-bearing waste materials that do not fall under more specific descriptions within heading 2620.

It is crucial to distinguish this category from its sibling, 2620.21.00. While 2620.21.00 specifically covers sludges derived from leaded gasoline and leaded anti-knock compounds, 2620.29.00 is intended for other types of lead-containing waste and residues. The primary differentiating factor is the specific origin and composition of the waste, with this subcategory capturing materials not explicitly defined as gasoline or anti-knock compound sludges.

The subdivisions within 2620.29.00 (e.g., copper content, lead content, zinc content, silver content, gold content) further refine the classification based on the dominant metallic composition of the residue. This allows for more precise accounting and potential duty assessment based on the recovery value or environmental management needs associated with specific metals present in these lead-containing wastes.