Leaching Residue from Copper-Gold Ore Processing from Canada
Ash-like residue from hydrometallurgical leaching of copper-gold ores, predominantly copper with embedded gold for recovery. Falls under 2620.30.00.50 for copper-main slags containing gold, used in metal extraction per heading scope. Assay reports gold content per statistical requirements.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Submit lab assays confirming gold content and copper dominance before import
• Ensure documentation proves industrial use for metal extraction to meet chapter note (a)
• Avoid bulk packaging that might suggest waste disposal