Cement Copper Nuggets
Cement copper nuggets are unrefined copper recovered by cementation from acidic mine drainage waters, with typical purity of 60-80% copper. They require smelting and electrolytic refining, fitting the tariff item's scope for unrefined copper.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the nuggets are considered waste or scrap
Copper waste and scrap is classified under heading 7404.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the nuggets are not classified as copper waste under heading 7404; provide a certificate of analysis showing copper content and impurities
• Confirm the material is intended for smelting and refining processes
Related Products under Tariff item 7402.00.00
Anode Casting Wheel Scrap
Overflow and trim scrap from continuous anode casting wheels in copper smelters. This material is unrefined copper returned to the casting circuit, containing typical anode impurities such as oxygen and sulfur, and is not yet suitable for direct use without further refining.
Black Copper Precipitate
Black copper precipitate is a low-grade unrefined copper produced by cementation from copper-bearing solutions, containing impurities like iron and sulfur. It is not suitable for direct use and requires smelting and electrolytic refining, aligning with the tariff item's scope.
Blister Copper Buttons
Blister copper buttons are small castings of blister copper from fire refining, used as test samples or furnace charge. They are unrefined copper with typical purity of 98-99% and gas porosity, requiring electrolytic refining before use.
Copper Cliff Anodes
Copper Cliff anodes are cast copper shapes produced from smelter matte, used directly in electrolytic tank houses for refining. They are copper anodes specifically for electrolytic refining, matching the tariff item's description.
Electrolytic Copper Starter Sheets
Electrolytic copper starter sheets are thin stainless steel-backed copper sheets used to initiate cathode deposition in electrolytic refining cells. The deposited copper layer is unrefined and intended for further refining, aligning with the tariff item.
Fire-Refinery Anode Scrap
Fire-refinery anode scrap consists of scrap copper anodes returned from fire refining operations, containing 95-98% copper with slag inclusions. This unrefined copper is destined for re-melting and electrolytic refining, fitting the tariff item.