Copper content
Zinc ores and concentrates > Copper content
Duty Rate (from China)
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
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2608.00.00.10
Zinc-Copper Blende Concentrate
A zinc ore concentrate derived from sphalerite (zinc blende) deposits containing significant copper impurities, processed to recover both metals. Classified under HTS 2608.00.0010 due to its copper content within zinc ores and concentrates, with quantity reported as assay copper without deductions.
Chalcopyrite-Zinc Ore Concentrate
Concentrate from polymetallic ores where chalcopyrite provides copper content alongside sphalerite zinc, beneficiated via flotation. Falls under HTS 2608.00.0010 for copper-bearing zinc concentrates, emphasizing the copper assay quantity.
Bornite-Zinc Polymetallic Concentrate
Flotation concentrate from bornite-rich zinc deposits, capturing copper as peacock ore alongside zinc sulfides. HTS 2608.00.0010 captures its copper content within zinc ore concentrates per statistical notes.
Enargite-Zinc Copper Sulfide Concentrate
High-sulfide concentrate from enargite (Cu3AsS4) zones in zinc mines, with copper content highlighted for statistical reporting. HTS 2608.00.0010 applies to this copper-bearing zinc ore product.
Digenite-Sphalerite Mixed Concentrate
Mixed sulfide concentrate blending digenite copper mineral with sphalerite zinc, common in porphyry deposits. Reported under HTS 2608.00.0010 based on copper assay in zinc concentrates.
Tenorite-Zinc Supergene Enrichment Concentrate
Supergene concentrate featuring tenorite (CuO) enriched over zinc sulfides in weathered deposits. Classified via copper content under HTS 2608.00.0010 for zinc concentrates.
Tetrahedrite-Zinc Ore Flotation Product
Concentrate featuring tetrahedrite (copper-antimony sulfide) intergrown with zinc minerals, separated for dual metal recovery. Classified in 2608.00.0010 for its measurable copper content in zinc ore streams.
Covellite-Zinc Ore Byproduct Concentrate
Byproduct concentrate from covellite (CuS) liberated during zinc ore processing, retaining copper for reporting. HTS 2608.00.0010 designates copper content in such zinc concentrates.
Azurite-Malchite Zinc Tailings Concentrate
Recovered concentrate from oxidized copper minerals like azurite and malachite in zinc tailings streams. Copper content qualifies it for HTS 2608.00.0010 within zinc ores.