Telluride Gold Ore Concentrate from Mexico
Flotation concentrate from Cripple Creek-type deposits containing calaverite and sylvanite gold tellurides. Classified under HTS 2616.90.00 as precious metal ore concentrate not fitting specific gold subheadings. Requires pressure oxidation or roasting prior to cyanidation.
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 XRF/ICP assay results showing tellurium-gold association for processing method declarations
• Use ISPM-15 compliant wooden dunnage for bulk shipments to prevent pest introduction
• Declare cyanide leaching incompatibility on MSDS for proper handling at destination ports