Mixed Arsenic-Mercury Electroplating Sludge
Sludge from electroplating baths with arsenic-mercury compounds, recovered for metal reclamation. Qualifies under HTS 2620.60.90.00 as industrial residues for extraction.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If chemical treatment applied
Treated sludges as chemical waste preparations in 3824.
If not used for extraction
Unused residues become general industrial waste in 2621.
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Import Tips & Compliance
• Sludge moisture content affects weight declaration; dry basis assays preferred
• De-watering pre-import reduces shipping hazmat class
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-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.