Digenite-Sphalerite Mixed Concentrate from China

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.

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
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

Import Tips

Provide mine-specific grade certificates for consistent classification

Beware reclassification if moisture content alters dry assay weights

Coordinate with smelters for joint import permits if multi-metal