2620.60 - Containing arsenic, mercury, thallium or their mixtures, of a kind used for the extraction of arsenic or those metalsor for the manufacture of their chemical compounds:

This HTS category, 2620.60, encompasses slag, ash, and residues, excluding those derived from iron or steel manufacturing, that specifically contain arsenic, mercury, thallium, or mixtures thereof. These materials are further defined by their intended use: either for the extraction of arsenic or these specific metals, or for their subsequent conversion into chemical compounds. This distinguishes them from other categories within 2620 that are primarily classified by the main metal content, such as those containing mainly zinc, lead, copper, or aluminum.

The classification of goods under 2620.60 hinges on the presence of arsenic, mercury, or thallium and their designated application. This focus on specific toxic elements and their extraction or chemical processing differentiates them from general metallic residues.

Within this category, further subdivision is provided by subheadings 2620.60.10 and 2620.60.90. The former specifically addresses materials intended solely for the extraction of arsenic or the manufacture of its chemical compounds. The latter, "Other," serves as a residual category for all other slag, ash, and residues containing arsenic, mercury, or thallium that do not meet the specific criteria for arsenic extraction or compound manufacture but are still used for extracting these metals or manufacturing their compounds.