Iridium Powder Precursor Sponge
Coarse sponge fragments intended for milling into powder, classified as unwrought under this tariff item since the current form doesn't meet powder sieve criteria. Used in additive manufacturing and catalyst preparation.
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 sponge is milled into powder
Milled powder would be classified as powder form.
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
• Confirm the sponge does not meet the powder sieve test
• Document the intended use as a precursor
• Ensure proper labeling for customs
Related Products under Tariff item 7110.41.00
99.999% Iridium Lump
Irregular chunks of ultra-high purity (5N) iridium from electrolysis, weighing 100g-500g each. They are classified as unwrought pure iridium under this tariff item.
Arc-Melted Iridium Button
Disc-shaped iridium mass from vacuum arc remelting, typically 50mm diameter, serving as stock for forging. It remains unwrought under this tariff item despite casting.
Cast Iridium Sponge
Cast iridium sponge is a porous, unwrought form of iridium produced by chemical precipitation and reduction. It is considered unwrought prior to fabrication and is a common precursor for further processing into semi-manufactured forms.
Cast Osmium Sponge
Cast Osmium Sponge is a porous form of osmium produced by reduction processes, considered unwrought as it requires further refining before fabrication. It is a dense platinum group metal used in various industrial applications. This product falls under tariff item 7110.41.00 as unwrought osmium in a non-powder form.
Electrolytic Osmium Cathodes
Electrolytic Osmium Cathodes are cathode deposits of osmium from electrolytic refining, in plate form but still unwrought. They represent refined but unworked osmium metal. This product falls under tariff item 7110.41.00 as unwrought osmium, a platinum group metal.
Electrolytic Ruthenium Ingot
Electrolytic Ruthenium Ingot is a high-purity ruthenium ingot cast from electrolytic deposition, in unwrought rectangular form for remelting. It is not further processed into semi-manufactured states. This product falls under tariff item 7110.41.00 as unwrought ruthenium per Chapter 71 definitions.