Gold-Tellurium Ore from Oxidation Zones from Mexico
Supergene enriched gossan containing native gold and tellurides from Carlin trend. Classified HTS 2616.90.00 as complex precious metal ore requiring specialized metallurgy. Oxidized zones yield higher recovery rates.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include oxidation state analysis (gossan vs sulfide) for appropriate processing declarations
• Monitor arsenic content from scorodite minerals for DOT hazardous material shipping
• Use silica flour additives in bulk bags to prevent dust and segregation during transit