Covellite Copper Sulfide Concentrate from Japan
Covellite (CuS) is an indigo-blue copper sulfide mineral producing high-purity concentrates (30-40% Cu) via selective flotation. Ideal for direct smelting. Classified in HTS 2603.00.00 as copper concentrates.
Duty Rate — Japan → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Monitor sulfur content for SO2 emission compliance at destination
• Provide differential flotation circuit details for concentrate purity proof
• Declare gangue minerals to assess penalty element deductions