Zinc Electrolyte Purification Slag Silver from China
Slag generated during zinc electrolyte purification in electrowinning plants, primarily zinc-based with silver precipitates and arsenic. Classified in 2620.19.60.40 for silver-content zinc residues used in metal recovery, per legal definitions excluding iron/steel and municipal waste. Basis for silver extraction processes.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Include electrowinning process flowcharts and silver assay reports for customs; report gross metal content
• Certify non-municipal origin; common issue is moisture content affecting weight-based duties
• Use ISPM-15 compliant pallets for transport; declare arsenic levels for EPA compliance