Refined Copper Anode Slime Residue Scrap
Refined copper anode slime residue scrap is a residue material generated during anode slime treatment in copper refineries. It assays less than 94% copper by weight and contains precious metal contaminants, making it classifiable as copper waste and scrap under tariff item 7404.00.91.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the copper content is 94% or more by weight
Residue with higher copper content would be classified under the residual waste and scrap item.
If the residue is derived from spent anodes and is not alloyed
Spent anode-derived residue with copper below 94% falls under this item.
If the precious metal content is significant enough to classify as waste of precious metals
Chapter 71 covers waste and scrap of precious metals, which may take precedence over base metal waste.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Due to precious metal content, verify whether the residue also falls under Chapter 71 rules for precious metals; if so, additional declarations may be required
• Provide a detailed assay report to the CBSA to substantiate the copper content below 94% by weight
• Check if the residue qualifies as hazardous waste under Canadian environmental regulations, which may require permits beyond customs clearance
Related Products under Tariff item 7404.00.91
Architectural Bronze Trim Scrap
Architectural bronze trim scrap salvaged from building demolition, consisting of copper-tin base alloy (bronze) with 87% copper, 11% tin, and 1% phosphorus. This scrap has a copper content below 94% by weight, qualifying it under tariff item 7404.00.91 as other copper waste and scrap with less than 94% copper.
Bronze Bearing Scrap
Scrap from phosphor bronze bushings and bearings, containing 88% copper, 10% tin, and trace phosphorus, with copper content below 94%. This is a copper-tin base alloy (bronze) per subheading note (b), making it eligible for classification under tariff item 7404.00.91 as other copper waste and scrap.
Copper Refinery Cathode Edge Trim Scrap
Copper refinery cathode edge trim scrap consists of trimmings removed from refined copper cathodes during finishing operations. The copper content is below 94% by weight due to surface impurities and residual electrolyte, making it classifiable as copper waste and scrap under tariff item 7404.00.91.
Electrolytic Copper Refinery Turnings Scrap
Electrolytic copper refinery turnings scrap consists of fine turnings and shavings produced during machining of refined copper anodes. The copper assay is under 94% by weight due to contamination from cutting fluids and tool wear, qualifying it as copper waste and scrap under tariff item 7404.00.91.
Refined Copper Electrolyte Tank Lining Scrap
Refined copper electrolyte tank lining scrap consists of replaced linings from copper electrolyte tanks, with copper content below 94% by weight due to solution pickup and contamination. It is classifiable as copper waste and scrap under tariff item 7404.00.91.
Refinery Copper Filter Cake Scrap
Refinery copper filter cake scrap is a byproduct of copper electrolyte purification, containing metallic copper at levels below 94% by weight. It is classified as refined copper scrap under tariff item 7404.00.91, as it results from refinery filtration systems that remove impurities.