2620.19.60.50 - Gold content

This classification pertains to slag, ash, and residues, excluding those derived from iron or steel manufacturing, which contain gold as a principal metallic component. These materials often originate from various industrial processes, such as smelting, refining, or manufacturing, where gold is present either as a valuable byproduct or as an incidental constituent of waste streams. The "Gold content" designation signifies that the primary metallic value or focus of the classification is on the gold present within these slag, ash, or residue materials.

Distinguishing this category from its siblings, such as those classified for copper, lead, zinc, or silver content, hinges on the predominant metal identified in the residue. While other metals may be present, the classification under 2620.19.60.50 is specifically for materials where gold is the most significant metal by weight or value. The "Other" qualifier at the parent level indicates that these are not specifically enumerated categories for zinc-containing residues, but rather a general classification for other residues with a defined metallic focus.

As this is a leaf node within the HTS classification system, there are no further subcategories. Therefore, classification into this code is final once the criteria of being a slag, ash, or residue (not from iron/steel), containing arsenic, metals, or their compounds, primarily containing zinc (as per the parent node), and specifically highlighting gold content, are met. Practical application would involve assessing the elemental composition and origin of the material to confirm gold as the principal metallic constituent for classification purposes.