Classification generally follows the material that gives the article its essential character. A copper-clad steel pot, for example, would typically be classified by its predominant material or essential character rather than automatically here. Solid copper articles and those where copper is the primary structural material are the clearest candidates for this heading.

Copper alloys, including brass and bronze, are generally treated as copper for HTS and SITC classification purposes when copper is the base metal. Importers should confirm the alloy composition and verify that the specific alloy falls within the copper-base-metal definition used in the applicable schedule before classifying under this heading.