2620.29.00.10 - Copper content

This classification pertains to slag, ash, and residues, other than those originating from the manufacture of iron or steel, that contain arsenic, metals, or their compounds. Specifically, this heading covers such materials when they contain copper as their principal metallic constituent, but do not fall under other more specific subheadings within 2620.29.00.

It is crucial to distinguish this category from its siblings, which are differentiated by their primary metallic content. For instance, 2620.29.00.20 specifically addresses residues where lead is the predominant metal, while 2620.29.00.30 covers those where zinc is the main metallic component. Similarly, 2620.29.00.40 and 2620.29.00.50 are reserved for residues with silver and gold as their principal metallic constituents, respectively. Therefore, the determining factor for classification under 2620.29.00.10 is the presence of copper as the dominant metal in the residue, ash, or slag, in the absence of other dominant metals specified in its sibling categories.

As this is a leaf node within the HTS structure, there are no further subcategories. Classification within this heading relies on the accurate identification of the principal metallic content based on assay results and other relevant analytical data. The scope of this classification is limited to residues and by-products that are not primarily intended for direct use as raw materials in other manufacturing processes but are rather the result of smelting, refining, or other metallurgical operations.