Zinc Refinery Skimmed Slag Copper Bearing
Skimmed residues from electrolytic zinc refineries, predominantly composed of zinc with copper and arsenic impurities. These materials are used in recovery operations to extract residual metals and are classified under tariff item 2620.19.00 as slag or ash containing mainly zinc, excluding those from iron or steel manufacture.
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 |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If copper becomes the predominant metal content
The classification under heading 2620 depends on the main metal present; a copper-dominant residue would be classified under the copper-specific subheading.
If the residue is used for arsenic extraction or contains significant arsenic
Subheading note 2 requires classification in 2620.60 for residues containing arsenic used for extraction of arsenic or metals.
If the main metal content is neither zinc nor copper
Residues containing mainly other metals fall under the residual subheading of heading 2620.
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
• Document the source of the skimmed slag to confirm it originates from zinc refining, not iron or steel production
• Provide a detailed chemical analysis to CBSA to support the classification under the zinc-main subheading
• Check if the material contains hazardous substances that may require additional permits under Canadian environmental regulations
Related Products under Tariff item 2620.19.00
Alloy Anodizing Zinc Ash
Ash from zinc alloy anodizing baths, predominantly zinc with arsenic traces, destined for metal compound synthesis. This residue is used industrially for manufacturing zinc compounds. Classified under 2620.19.00 as other zinc-containing slag and ash, not from iron or steel production.
Brass Foundry Residue with Copper and Arsenic
Ash and slag from brass production (zinc-copper alloy) containing mainly zinc, copper, and arsenic traces for chemical compound manufacture. This residue is used industrially for metal extraction. Falls under 2620.19.00 as other non-ferrous residue with specified metals.
Brass Foundry Residue with Zinc
Slag and ash from brass production containing mainly zinc and arsenic compounds, recovered for industrial zinc extraction. This material falls under tariff item 2620.19.00 as slag or ash containing mainly zinc, other than from iron or steel manufacture.
Brass Foundry Zinc-Rich Residue
Slag and ash from brass (zinc-copper alloy) foundry operations containing primarily zinc, arsenic impurities, and metal compounds for recovery. This residue is used in industry for metal extraction. Falls under 2620.19.00 as other zinc-containing slag and ash.
Brass Foundry Zinc Skimmings Silver Bearing
Skimmings from brass foundry melting pots, mainly zinc with silver and arsenic traces from scrap inputs, recovered industrially. These non-ferrous residues are classified under tariff item 2620.19.00 as containing mainly zinc.
Brass Foundry Zinc Skimmings with Lead
Skimmings from brass foundry melting operations, composed mainly of zinc residue with lead and arsenic impurities. These materials are used industrially for metal recovery and are classified under tariff item 2620.19.00 as slag or ash containing mainly zinc, other than from iron or steel manufacture.