Leaching Residue from Copper-Gold Ore Processing from Mexico
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 — Mexico → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 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