Flue Dust from Copper Smelters with Gold Content from Mexico
Fine ash collected from copper smelter exhausts, rich in copper particles and gold for metal recovery operations. Classified in 2620.30.00.50 as copper-mainly containing gold, per chapter note for industrial use in extraction. Quantity reported via assay.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Use sealed containers to prevent dust escape during transport, complying with hazmat rules if arsenic present
• Provide origin certificates excluding municipal sources
• Test for particle size if borderline with ore headings