Doré Slime with Copper Impurities
Refinery slime from doré processing containing residual copper alongside precious metals, concentrated for recovery. Classified under HTS 2616.90.00.10 due to copper content reporting in precious metal concentrates category. Not slag under heading 2620 as it's ore-derived.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If other base metal content dominates statistical reporting
Catch-all suffix for precious metal concentrates with unspecified or mixed base metals.
If containing precious metals for chemical compound manufacture
Heading 2620 includes residues used as basis for metal chemical compounds per chapter notes.
If lead-zinc ores with copper byproduct
Lead ores are under heading 2607 when lead is principal, separate from precious metals.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Classify based on origin as ore concentrate, not as 2620 residues unless industrially processed for extraction
• Laboratory certificates must specify copper assay for statistical reporting accuracy
• Beware reclassification if copper content suggests base metal concentrate under Chapter 26
Related Products under HTS 2616.90.00.10
Copper-Bearing Gold Ore Concentrate
A concentrate derived from precious metal ores containing significant copper content, primarily used for gold extraction with copper as a byproduct. It falls under HTS 2616.90.00.10 due to its classification as 'other' precious metal ores and concentrates specifically reported under the copper content statistical suffix. The copper assay quantity is reported without deductions per statistical notes.
Silver-Copper Ore Tailings Concentrate
Tailings from silver ore processing that have been concentrated to recover residual copper alongside silver values. Classified under HTS 2616.90.00.10 for precious metal concentrates with reportable copper content per statistical requirements. Not considered industrial residues under heading 2620.
Platinum Group Metals-Copper Flotation Concentrate
Flotation concentrate from PGM ore processing containing copper sulfides recovered with platinum group metals. HTS 2616.90.00.10 applies to such 'other' precious metal concentrates where copper content is statistically reported. Distinguished from base metal concentrates by precious metal recovery intent.
Gold-Copper Pyrrhotite Concentrate
Concentrate containing gold values associated with copper-bearing pyrrhotite from polymetallic deposits. Falls under HTS 2616.90.00.10 for copper content in precious metal ores and concentrates. Particle size typically fine, not qualifying as 'coarse' iron ore.