Tenorite-Zinc Supergene Enrichment Concentrate from China
Supergene concentrate featuring tenorite (CuO) enriched over zinc sulfides in weathered deposits. Classified via copper content under HTS 2608.00.0010 for zinc concentrates.
Duty Rate — China → United States
25%
Rate breakdown
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Report oxide vs sulfide copper fractions separately
• Use dust suppression in shipping to control fines
• Confirm no chemical processing; raw ore status critical