Digénite Copper Sulfide Concentrate from Germany
Digénite (Cu9S5) forms secondary copper sulfide concentrates through supergene enrichment, yielding 45-55% copper for smelter feed. Flotation separates from chalcopyrite. HTS 2603.00.00 classification.
Duty Rate — Germany → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Specify supergene vs hypogene origin affecting metallurgy
• Report bornite-digénite intergrowth percentages
• Ensure concentrate grade stability certificates