Thallium-Lead Alloy Processing Residue
Residue from thallium-lead alloy production containing recoverable thallium, used in chemical compound synthesis. Covered by HTS 2620.60.90.00 for thallium-bearing industrial residues per chapter note.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If unwrought lead content primary
Lead metal/unwrought forms supersede residue classification.
If complex thallium compounds isolated
Inorganic mercury/thallium compounds post-processing in Chapter 28.
If used as catalyst support
Functionalized residues become Chapter 38 catalysts.
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Import Tips & Compliance
• Alloy residues need metallurgical flow charts for classification support
• Monitor thallium solubility; leachable forms require additional wastewater permits
• Avoid retail packaging; bulk industrial only to stay in 2620
Related Products under HTS 2620.60.90.00
Arsenic-Bearing Copper Smelter Slag
Residue from copper smelting processes containing arsenic and metal compounds, primarily used for arsenic extraction or chemical compound production. Classified under HTS 2620.60.90.00 as slag containing arsenic for metal extraction or chemical manufacturing, per Chapter Note (b). Excludes iron/steel slag and municipal waste ash.
Mercury-Contaminated Zinc Refinery Ash
Ash residue from zinc refining operations laden with mercury and metal compounds, utilized for mercury recovery or compound synthesis. Falls under HTS 2620.60.90.00 for residues containing mercury used in extraction or chemical manufacture, distinct from iron/steel byproducts.
Thallium-Rich Lead Smelter Residue
Slag-like residue from lead smelting containing thallium compounds, employed in thallium extraction or chemical production. HTS 2620.60.90.00 covers such non-iron/steel residues with thallium for industrial metal/compound recovery, per chapter legal definitions.
Arsenic-Mercury Mixed Smelter Dust
Fine dust collected from non-ferrous smelters containing both arsenic and mercury mixtures, destined for selective metal recovery. Classified in HTS 2620.60.90.00 as 'other' residues with specified toxic elements for extraction or compound production, excluding municipal sources.
Thallium-Contaminated Gold Cyanidation Ash
Ash from gold cyanidation leaching containing thallium impurities, used for thallium and precious metal recovery. HTS 2620.60.90.00 includes such chemical process residues with thallium for extraction purposes, per Heading 2620 scope.
Thallium Gallium Arsenide Etch Residue
Etch residue from semiconductor GaAs wafer processing with thallium dopants, for metal recovery. Industrial residue under HTS 2620.60.90.00.