Primary Lead Smelter Sludge with Silver Content
Sludge generated in primary lead smelters, lead-dominant with recoverable silver and arsenic impurities. Fits HTS 2620.21.00.40 for silver-bearing leaded sludges used in metal/compound manufacturing. Chapter notes confirm applicability to industrial arsenic/metal residues.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If as tin ores with lead impurities
If tin predominant, it's ore under 2609; lead dominance changes heading.
If containing mainly zinc with lead
Zinc-lead sludges have separate 2620.22; predominance rules.
If extracted as silver compounds
Post-extraction pure compounds move to Chapter 28 inorganics.
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Import Tips & Compliance
• Laboratory assays mandatory for silver without deductions
• Verify no iron/steel manufacturing origin to stay in 2620
• Use licensed hazwaste transporters
Related Products under HTS 2620.21.00.40
Leaded Gasoline Sludge with Silver Residue
Residue from the refining of leaded gasoline containing mainly lead along with silver compounds and arsenic traces. Classified under HTS 2620.21.00.40 due to its primary lead content and reportable silver assay, used for metal recovery in industrial processes. Excludes municipal waste incineration residues per Chapter notes.
Battery Recycling Leaded Sludge with Silver Recovery
Sludge from lead-acid battery recycling featuring high lead content, silver traces, and arsenic, destined for precious metal reclamation. Under HTS 2620.21.00.40 as leaded sludge residues per the code's specific statistical silver reporting. Exclusively industrial, non-municipal waste per notes.
Leaded Anti-Knock Compound Sludge with Silver Impurities
Sludge byproduct from leaded anti-knock fuel additives production, predominantly lead-based with silver and arsenic compounds. Falls under HTS 2620.21.00.40 for its silver content in leaded sludges used industrially for metal reclamation. Meets heading 2620 criteria for non-iron/steel residues extractable for metals.
Lead Refinery Slag with Silver and Arsenic Content
Slag from lead smelting operations containing silver for recovery and arsenic compounds, primarily lead-based. HTS 2620.21.00.40 applies to such non-steel residues used in industry for metal extraction per chapter notes. Silver content reported via assay for tariff purposes.
Leaded Fuel Additive Waste Ash with Silver Assay
Ash residues from leaded fuel additive manufacturing, mainly lead with silver and arsenic for extraction. HTS 2620.21.00.40 captures these leaded anti-knock sludges with silver content reporting. Used in chemical compound production aligning with heading 2620 scope.