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.
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
Higher-purity filter cake would be classified under the residual waste and scrap item.
If the filter cake is derived from spent anodes and is not alloyed
Spent anode-derived waste with copper below 94% falls under this item.
If the filter cake is primarily ash or residue from incineration rather than metallic scrap
Chapter 26 covers ash and residues containing metals, which may apply if the material is non-metallic.
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
• Obtain a laboratory analysis confirming the copper content is below 94% by weight, as filter cake can vary significantly in composition
• Check whether the filter cake contains hazardous substances (e.g
• arsenic or lead) that trigger environmental controls under Canadian law
• Declare the material as waste and scrap, not as a chemical product, to align with the tariff item's scope
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 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.
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.