Refinery Copper Filter Cake Scrap
Filter cake from copper electrolyte purification containing metallic copper <94%, classified as refined copper scrap under HTS 7404.00.30.20. Byproduct of refinery filtration systems removing impurities.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If from ore leaching operations
Mining-derived copper precipitates classified as roasted ore concentrates in Chapter 26.
If metal salts exceed metallic copper
Salts of copper/metals from purification move to Chapter 28 inorganic salts.
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Import Tips & Compliance
• Critical moisture analysis required—wet cake undervalues duty; dry to <8% moisture
• Avoid classification as 2613 copper concentrates by proving refinery (not mining) origin
• Bag in anti-corrosive material due to sulfate content
Related Products under HTS 7404.00.30.20
Refined Copper Spent Anodes
Spent anodes recovered from electrolytic copper refining processes, containing less than 94% copper by weight after use. These are classified under HTS 7404.00.30.20 as copper waste and scrap of refined copper origin. The material consists primarily of corroded copper with impurities accumulated during electrolysis.
Copper Refinery Cathode Edge Trim Scrap
Trimmed edge scrap from refined copper cathodes during finishing, with copper content below 94% due to surface impurities. HTS 7404.00.30.20 applies to this refined copper waste stream. Generated post-electrowinning before final cathode packaging.
Refined Copper Electrolyte Tank Lining Scrap
Scrap metal from replaced linings of copper electrolyte tanks, with <94% copper from solution pickup. HTS 7404.00.30.20 covers this refinery-specific waste. Contains adherent electrolyte residues.
Electrolytic Copper Refinery Turnings Scrap
Fine copper turnings and shavings generated during machining of refined copper anodes, with copper assay under 94%. Classified as waste and scrap under HTS 7404.00.30.20 due to refined copper source and low purity from wear. Primarily used in secondary copper smelting.
Refined Copper Anode Slime Residue Scrap
Residue scrap from anode slime treatment in copper refineries, assaying less than 94% copper with precious metal contaminants. Falls under HTS 7404.00.30.20 as spent anode-derived waste of refined copper. Collected during electrolytic purification processes.
Spent Refined Copper Busbar Scrap
Used busbar sections from copper refineries, degraded to <94% copper assay from oxidation and contamination. Classified under HTS 7404.00.30.20 as scrap of refined copper. Common in electrical systems within refining plants.