Zinc Electrowinning Sludge
Sludge from zinc electrowinning cells containing zinc compounds, arsenic, and recoverable metals for chemical processing. This hydrometallurgical residue is used industrially for metal recovery. Classified under 2620.19.00 as other zinc-containing slag and ash.
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 the arsenic content is significant
Arsenic-containing residues are classified in subheading 2620.60 per subheading note 2.
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 sludge is from zinc electrowinning, not iron or steel production
• Provide a detailed chemical analysis for customs classification
• Verify that the sludge meets the industrial use criteria of Chapter Note 3
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 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.
Die-Casting Zinc Alloy Furnace Slag Copper
Slag from zinc alloy die-casting furnaces, containing mainly zinc, copper, and arsenic compounds for chemical recovery. This residue is used industrially for metal extraction. Classified under 2620.19.00 as other zinc-containing residues, distinct from iron/steel slags.
Die Casting Zinc Skimmings
Skimmings and residues from zinc die casting containing mainly zinc with arsenic contaminants, used for metal reclamation. These industrial non-ferrous slags are suitable for zinc recovery. Classified under 2620.19.00 as other zinc-containing residues.
Galvanized Steel Processing Zinc Dross
Zinc dross generated during hot-dip galvanizing of steel, skimmed from molten zinc kettles. Consists mainly of zinc oxides and zinc compounds, suitable for industrial recovery of zinc. Falls under tariff item 2620.19.00 as a non-ferrous slag/residue containing mainly zinc.