HS Code for Cement copper

Cement copper, also known as precipitated copper, is classified under HS code 7401.00. This heading covers copper mattes and cement copper. Cement copper is a finely divided, impure powder obtained through a hydrometallurgical process where copper is precipitated from an aqueous solution of copper salts (usually by adding iron scrap to a copper sulfate solution). According to the Explanatory Notes to Chapter 74, cement copper is distinct from refined copper powders because it contains significant levels of impurities, such as iron and oxides, and is generally used as a raw material in copper smelting or refining rather than as a finished industrial powder. The classification is based on GRI 1, as the heading specifically names "cement copper (precipitated copper)." It represents an intermediate stage in the production of copper, sitting between the ore/concentrate stage and the refined metal stage. The chemical nature of the precipitation process is what defines this product under heading 7401 rather than as a metal powder or a refined ingot.

Products Included

• Precipitated copper powder from leaching processes
• Impure copper sludge used for smelting
• Cement copper obtained from mine water treatment
• Copper precipitates intended for further electrolytic refining

Common Misclassification

Cement copper is frequently misclassified as copper powder under HS code 7406. However, 7406 is reserved for manufactured powders and flakes used in paints, metallurgy, or chemical processes. Another error is 7403, which covers refined copper and copper alloys in unwrought forms like ingots or cathodes. Cement copper is also distinct from copper ores and concentrates (2603), as it has undergone a chemical precipitation process that concentrates the metal beyond the level of mechanical ore dressing. Confusing cement copper with refined powder can lead to incorrect regulatory compliance.

FAQ

What is the HS code for cement copper?

The HS code for cement copper, also referred to as precipitated copper, is 7401.00.

Is cement copper the same as refined copper powder?

No, cement copper is an impure intermediate product classified under 7401.00. Refined copper powders, which are manufactured for specific industrial applications, are classified under HS code 7406.10 or 7406.20.