2620.21.00.50 - Gold content

This HTS category, 2620.21.00.50, specifically covers residues containing gold content, falling under the broader heading of "Slag, ash and residues (other than from the manufacture of iron or steel), containing arsenic, metals or their compounds." These materials are typically derived from industrial processes, such as smelting, refining, or the handling of spent catalysts, where gold is present as a primary or significant component. The classification hinges on the identification of gold as the predominant or most commercially valuable metal within the residue.

Distinguishing this category from its siblings is crucial for accurate classification. While all sibling categories within 2620.21.00 address residues with specific metallic contents, this subcategory is solely for those where gold is the defining element. For example, residues classified under 2620.21.00.10 would primarily contain copper, while 2620.21.00.20 would focus on lead content. The presence and concentration of gold are the determining factors for classification under 2620.21.00.50, overriding the classification if another metal is present in a lesser or non-commercial quantity.

As a leaf node, this category does not have further subdivisions. Therefore, the classification is directly determined by the presence of gold as the principal metallic component of the slag, ash, or residue. Importers and exporters should ensure they have accurate assay reports or other supporting documentation to confirm the gold content for customs purposes. This classification is essential for the correct application of tariffs and trade regulations related to precious metal-bearing waste materials.