Heap Leach Cement Copper
Precipitated copper from heap leach solutions using cementation with shredded steel. HTS 7401.00.00.00 includes this low-cost copper recovery method product from oxide ores.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If insufficient cementation
Partially leached oxide ore remains copper ore concentrate.
If mixed with steel scrap residues
Contaminated with significant iron scrap classified as copper scrap.
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Import Tips & Compliance
• Provide heap leach solution chemistry and iron-to-copper precipitation ratios
• Separate silica gangue may require washing documentation
Related Products under HTS 7401.00.00.00
Copper Matte from Smelting Operations
Copper matte is an intermediate product from copper smelting furnaces, consisting primarily of copper and iron sulfides with low precious metal content. It falls under HTS 7401.00.00.00 as a copper matte used in pyrometallurgical refining processes to produce blister copper.
Cement Copper Precipitate
Cement copper is precipitated elemental copper recovered from low-grade leach solutions using scrap iron in cementation process. Classified under HTS 7401.00.00.00 as precipitated copper, typically 50-80% pure, used as feed for further refining.
SX-EW Cement Copper Sludge
Precipitated copper sludge from solvent extraction-electrowinning (SX-EW) plant bleed streams, recovered via cementation. Falls under HTS 7401.00.00.00 as cement copper from hydrometallurgical operations.
Black Copper Matte
Initial matte product from copper smelting containing 40-50% copper, also called 'black copper' due to high iron content. HTS 7401.00.00.00 specifically includes all copper mattes regardless of grade.
Electrolytic Cement Copper
Cement copper precipitated in electrolytic tankhouse purification circuits using iron scrap. HTS 7401.00.00.00 covers this high-purity (80%+) precipitated copper used in anode casting.
Converter Blow Matte
Matte generated during final converting blow in Peirce-Smith converters, containing 72-78% copper. Falls under HTS 7401.00.00.00 as standard copper smelting intermediate product.