Zinc Electrowinning Sludge
Sludge from zinc electrowinning cells containing zinc compounds, arsenic, and recoverable metals for chemical processing. Fits HTS 2620.19.60 as other zinc slag/ash from hydrometallurgical operations.
Import Duty Rates by Country of Origin
More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If roasted zinc ores
Upstream ore roasts classify under 2613, not downstream residues.
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Import Tips & Compliance
• Include electrowinning process certification for accurate heading 2620 placement
• Declare sludge moisture content to avoid semi-solid misclassification
• Monitor for export controls on arsenic-bearing materials
Related Products under HTS 2620.19.60
Zinc Smelter Slag Residue
Residue from zinc smelting processes containing mainly zinc along with arsenic and other metal compounds, used in industry for metal recovery. Classified under HTS 2620.19.60 as slag from non-iron/steel manufacture with primarily zinc content and arsenic. Excludes municipal waste incineration residues.
Galvanizing Plant Zinc Dust Ash
Ash generated from zinc dust recovery in hot-dip galvanizing operations, rich in zinc compounds and trace arsenic. Falls under HTS 2620.19.60 for non-ferrous residues containing mainly zinc and arsenic, intended for chemical compound production.
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. HTS 2620.19.60 applies to such non-steel industry residues used in metal extraction.
Zinc Oxide Production Ash
Ash byproduct from zinc oxide manufacturing via French process, containing residual zinc, arsenic, and compounds for recycling. Classified in HTS 2620.19.60 as 'other' zinc-mainly residues from non-ferrous operations.
Die Casting Zinc Skimmings
Skimmings and residues from zinc die casting containing mainly zinc with arsenic contaminants, used for metal reclamation. HTS 2620.19.60 covers these industrial non-ferrous slags.
Alloy Anodizing Zinc Ash
Ash from zinc alloy anodizing baths, predominantly zinc with arsenic traces, destined for metal compound synthesis. HTS 2620.19.60 for such surface treatment residues.