Primary Lead Smelter Sludge with Silver Content from China
Primary lead smelter sludge with silver content is generated during primary lead smelting, with lead as the dominant metal and recoverable silver and arsenic impurities. It is classified under tariff item 2620.21.00 as a lead-dominant sludge used in industry for metal or compound manufacturing, per the chapter notes.
Duty Rate — China → Canada
0%
Import Tips
• Verify that the sludge meets the definition of 'leaded gasoline sludge' or 'leaded anti-knock compound sludge' under subheading note 1; otherwise, consider alternative classifications
• Provide detailed assay results to CBSA to confirm lead content
• Check for any provincial or federal permits required for importing metal-bearing residues