Colloidal Gold Solution
A stable suspension of gold nanoparticles in water or another solvent, used in diagnostics and nanotechnology. The product consists of gold in colloidal form, meeting the definition of colloidal precious metals under this tariff item.
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 gold is in the form of a chemical compound rather than elemental colloidal particles
Gold compounds are classified separately from colloidal precious metals.
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
• Document the concentration and particle size of the gold colloid to support classification
• Ensure the solvent is water or a simple carrier without functional additives
• Be aware that if the solution is for human consumption, it may face additional health product regulations
Related Products under Tariff item 2843.10.00
Colloidal Gold Diagnostic Reagent
A bulk colloidal gold reagent consisting of gold nanoparticles suspended in a liquid, imported before any conjugation with antibodies. It is a colloidal precious metal, as the gold particles are finely dispersed in the medium, falling squarely under tariff item 2843.10.00.
Colloidal Gold Ink for Electronics
A bulk colloidal gold ink containing gold nanoparticles dispersed in a solvent, used for printing conductive circuits. It is a colloidal precious metal because the gold is in colloidal form, not yet printed onto any substrate, and is classifiable under this tariff item.
Colloidal Palladium Solution
A stable liquid colloid of palladium nanoparticles used in catalysis and electronics. Palladium is a precious metal, and its colloidal dispersion falls under this tariff item as a colloidal precious metal.
Colloidal Platinum Catalyst Precursor
An ethanol dispersion of platinum nanoparticles intended for depositing onto fuel cell electrodes. The platinum is in colloidal form, making it a colloidal precious metal under this tariff item.
Colloidal Platinum Dispersion
An aqueous suspension of platinum nanoparticles used as a catalyst in chemical reactions and fuel cells. The platinum is in colloidal form, and the product is classifiable as a colloidal precious metal under this tariff item.
Colloidal Silver Nanoparticles
A water-based colloid of silver nanoparticles used for antimicrobial treatments in textiles. Silver is a precious metal, and the colloidal form falls under this tariff item.