Ruthenium on Alumina for Ammonia Synthesis Alternative
Promoted ruthenium on high-alumina support as a lower-pressure alternative to iron-based Haber-Bosch ammonia synthesis catalysts. This supported catalyst uses ruthenium, a precious metal, as the active substance. It falls under tariff item 3815.12.00 as a supported precious metal catalyst.
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 catalyst is not supported on a carrier
This alternative covers unsupported catalysts, which do not have a support material.
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
• Provide the ruthenium content and the promoter details for accurate classification
• Ensure the catalyst is not classified as a fertilizer product under Chapter 31
• Verify if any ammonia production regulations apply
Related Products under Tariff item 3815.12.00
Gold on Ceria Catalyst for Oxidation
Nanogold particles supported on cerium oxide, used for low-temperature CO oxidation in air purification systems. This supported catalyst is classified under tariff item 3815.12.00 because gold, a precious metal, is the active catalytic substance.
Gold on Titania Catalyst for CO Oxidation
Nanosize gold particles (2-5nm) supported on titanium dioxide (TiO2) for low-temperature carbon monoxide oxidation. This catalyst is used in air purification systems and fuel cell applications to remove CO from gas streams. It falls under tariff item 3815.12.00 because gold is a precious metal and the active substance is supported on a carrier.
Iridium Oxide on Carbon Catalyst
Iridium(IV) oxide nanoparticles supported on vulcan carbon black, used in polymer electrolyte membrane (PEM) fuel cells. This catalyst uses iridium, a precious metal compound, as the active substance on a carbon support. It falls under tariff item 3815.12.00 as a supported catalyst with precious metal compounds.
Iridium Oxide on Titania Catalyst
Iridium oxide nanoparticles supported on titanium dioxide, applied in electrochemical reactions and fuel cell technology. This supported catalyst falls under tariff item 3815.12.00 because iridium oxide, a precious metal compound, is the active substance.
Iridium Oxide Supported Catalyst for Hydrazine Decomposition
Iridium oxide supported on alumina or titania for catalytic decomposition of hydrazine in spacecraft propulsion systems. This aerospace-grade catalyst uses iridium, a precious metal, as the active substance on a support. It is classified under tariff item 3815.12.00 as a supported catalyst with precious metal compounds.
Mixed PGM on Ceria-Zirconia for TWC Front Bed
A Pd-Pt-Rh ternary precious metal catalyst on ceria-zirconia oxygen storage support for three-way converter front bed position. This multi-precious metal supported catalyst optimizes cold-start emissions performance in automotive applications. It falls under tariff item 3815.12.00 as a supported catalyst with precious metal compounds as the active substance.