Converter Slag from Copper Pyrometallurgy with Gold
Slag from Peirce-Smith converters in copper production, mainly copper sulfides and oxides with gold traces for recovery. Under 2620.30.00.50 as copper-predominant with gold content, for metal/compound manufacture. Not from iron/steel per hierarchy.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If in form of copper matte
Matte is semi-processed copper product in 7402, beyond slag residue.
If silver content predominant with gold
Precious metal synthetic filings/waste in Chapter 71 if not industrial slag.
If ferrous converter slag
Iron/steel exclusion routes to Chapter 72 slag headings.
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Import Tips & Compliance
• Ensure slag cooling certificates to confirm non-hazardous state for shipping
• Differentiate from ore fines via processing history docs
• Monitor for alternative claims if gold assay exceeds typical thresholds
Related Products under HTS 2620.30.00.50
Copper Smelter Slag with Gold Content
Residue from copper smelting operations containing primarily copper compounds along with recoverable gold content, used in the extraction of precious metals. Classified under HTS 2620.30.00.50 due to its main copper composition and gold assay quantity as per statistical notes. Excludes iron/steel manufacture residues and municipal waste ash.
Leaching Residue from Copper-Gold Ore Processing
Ash-like residue from hydrometallurgical leaching of copper-gold ores, predominantly copper with embedded gold for recovery. Falls under 2620.30.00.50 for copper-main slags containing gold, used in metal extraction per heading scope. Assay reports gold content per statistical requirements.
Doré Slag from Copper Refinery with Gold Impurities
Slag byproduct from refining doré (gold-silver alloy) in copper plants, mainly copper compounds with residual gold for reclamation. HTS 2620.30.00.50 applies to copper-dominant residues containing gold, for industrial metal recovery. Excludes iron/steel slags.
Flue Dust from Copper Smelters with Gold Content
Fine ash collected from copper smelter exhausts, rich in copper particles and gold for metal recovery operations. Classified in 2620.30.00.50 as copper-mainly containing gold, per chapter note for industrial use in extraction. Quantity reported via assay.
Electrostatic Precipitator Ash from Copper-Gold Processing
Ash captured by electrostatic filters in copper-gold smelters, primarily copper with gold for extraction. HTS 2620.30.00.50 for copper-containing residues with gold content, used industrially per heading 2620 scope. Assay-based quantity reporting.