Flue Dust from Copper Smelters with Silver Particles
Flue dust from copper smelters is fine ash and particulate matter captured from the flue gases of copper smelting furnaces. It consists mainly of copper with silver content and is used for the recovery of metals in industrial applications. This product falls under tariff item 2620.30.00 as a copper-containing residue, excluding by-products of the steel industry.
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 dust contains arsenic, mercury, thallium or their mixtures
Subheading note 2 requires classification in 2620.60 for such residues.
If the dust is ash from the incineration of municipal waste
Chapter note 3 excludes municipal waste incineration ash from heading 26.20.
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
• Confirm the flue dust originates from copper smelting and not from iron or steel production
• Provide assay documentation showing copper as the main metal content
• Be aware that flue dust may be classified as hazardous waste, requiring special handling and permits under Canadian environmental law
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.