Copper Electrorefining Anode Slime with Silver
Copper electrorefining anode slime is a residue that settles at the bottom of electrolytic cells during the electrorefining of copper anodes. It contains mainly copper along with significant silver content and is processed for the recovery of precious metals and other valuable elements. This product falls under tariff item 2620.30.00 as a slag, ash or residue containing mainly copper, used industrially for metal extraction.
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 |
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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 primary purpose is the recovery of precious metals and the copper content is incidental
Waste or scrap containing precious metals for recovery may be classified in Chapter 71.
If the slime contains arsenic, mercury, thallium or their mixtures
Subheading note 2 requires classification in 2620.60 for such residues.
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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
• Because the slime contains silver, be aware that the precious metal content may be subject to additional reporting requirements under Canadian customs regulations
• Provide a detailed assay showing copper as the main component to justify classification under 2620.30.00
• Confirm whether the slime requires a permit under the Canadian Environmental Protection Act due to its metal content
Related Products under Tariff item 2620.30.00
Arsenic-Lead Copper Tailings Residue
Flotation tailings from copper ore processing, containing mainly copper along with lead and arsenic compounds, used for further metal extraction. This residue qualifies under tariff item 2620.30.00 as slag, ash and residues containing mainly copper, per the chapter notes for industrial metal recovery.
Brass Foundry Zinc Ash
Ash generated in brass (copper-zinc alloy) foundry operations, containing mainly copper with zinc, classified under tariff item 2620.30.00 for recovery of metals. This material qualifies under Chapter 26 notes for residues used in metal extraction.
Converter Copper Slag
Converter copper slag is a byproduct of the copper smelting process, primarily composed of copper compounds and oxides. It is used in the metallurgical industry for the recovery of copper and other metals, and is not derived from iron or steel manufacturing.
Converter Slag from Copper Pyrometallurgy with Gold
Converter slag from copper pyrometallurgy is a by-product of the converting stage in copper production, such as from Peirce-Smith converters. It consists mainly of copper sulfides and oxides with trace amounts of gold, and is used for the recovery of metals. This product falls under tariff item 2620.30.00 as a copper-predominant residue for metal or compound manufacture, not from iron or steel.
Copper Alloy Scrap Ash
Ash from incinerating copper alloy scrap with zinc, mainly copper, classified under tariff item 2620.30.00, excluding municipal waste per chapter notes. This material is used for zinc and copper extraction in industrial processes.
Copper Anode Slime
Copper anode slime is a residue from the electrolytic refining of copper anodes, containing mainly copper along with precious metals like gold and silver. It is used industrially for the extraction of copper and precious metals, falling under this tariff item as a copper-containing residue.