Heap Leach Copper Concentrate 8g/t Gold Content from Mexico
Concentrate from heap leaching operations with 8g/t gold recovered in copper circuit. HTS 2603.00.0050 applies for gold content subset per assay quantities. Sustainable mining byproduct import.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Certify leach process to distinguish from primary concentrates for duty rates
• Use sealed samples for customs gold assays
• Pitfall: Leach residues misclassified as waste under 2621