Leaching Residue with Zinc Content
Ash-like residue from hydrometallurgical leaching of copper ores, mainly copper with zinc compounds, under HTS 2620.30.00.30 for its metal recovery applications. Fits heading 2620 as industrial residue for chemical compound manufacture.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If primarily roasted copper ores
Shifts from residue to ore if containing mainly copper sulfides in roasted state.
If zinc content is minimal
Lower zinc moves to other copper-containing residues without specific zinc statistical breakouts.
If sold as mixed metal compound mix
Not mainly copper composition directs to other residues containing 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
• Submit detailed chemical assays confirming mainly copper and zinc content for correct subheading
• Declare intended industrial use (e.g
• zinc recovery) to distinguish from waste under environmental regs
• Watch for particle size; coarse residues might overlap with ore statistical notes if not processed
Related Products under HTS 2620.30.00.30
Copper Smelter Zinc Slag
Residue from copper smelting processes containing primarily copper with significant zinc content, classified under HTS 2620.30.00.30 due to its metal compounds and use in metal recovery. It meets Chapter 2620 notes as slag used for extracting metals like zinc and copper.
Brass Foundry Zinc Ash
Ash generated in brass (copper-zinc alloy) foundry operations, containing mainly copper with zinc, classified in HTS 2620.30.00.30 for recovery of metals. Qualifies under Chapter 2620(b) for arsenic/metal extraction uses.
Copper Electrolysis Zinc Residue
Residues from copper electrolysis containing zinc impurities, mainly copper matrix, under HTS 2620.30.00.30 for industrial metal reclamation. Aligns with Chapter 2620 for residues used in compound production.
Secondary Copper Zinc Skimmings
Skimmings from secondary copper recycling with zinc content, primarily copper-based, in HTS 2620.30.00.30 for metal extraction. Excluded from iron/steel per hierarchy and used industrially.
Roasted Copper-Zinc Flue Dust
Flue dust from roasting copper concentrates with zinc, mainly copper, under HTS 2620.30.00.30 as arsenic/metal residue for recovery. Chapter 2620 applies for industrial chemical uses.
Galvanizing Plant Zinc Slag
Slag from copper-zinc galvanizing operations, copper-main with zinc, HTS 2620.30.00.30 for metal compound basis. Industrial use qualifies per Chapter 2620(a).