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.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | +25.0% | 25% |
| 🇲🇽Mexico | Free | — | Free |
| 🇨🇦Canada | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If primarily precious metal-bearing slag
Anode slimes rich in gold/silver classified as Chapter 26 metallurgical residues by predominant value.
If shredded/briquetted form for statistical reporting
Processed scrap forms have specific statistical suffixes within the same <94% refined copper heading.
If chemically treated for metal recovery
Chemical precipitates from refinery waste move to Chapter 38 as prepared chemical products.
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Import Tips & Compliance
• Declare trace precious metals (gold/silver) separately; failure triggers CBP penalty for incomplete manifests
• Provide refinery origin documentation distinguishing from mining concentrates (Chapter 26)
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.
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.
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.
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.