Palladium Membrane Catalyst for Hydrogen Purification
A thin-film palladium membrane on a porous ceramic or metal support, used to purify hydrogen by selective diffusion while also acting as a catalyst. This dual-function product is classified under tariff item 3815.12.00 because the precious metal palladium is the active substance in a supported catalytic 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 |
PGA flags
No agency flag on this HTS number in the CBSA Single Window matching criteria.
CBSA Single Window matching criteria, unknown
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 imported primarily as a gas purification membrane rather than a catalyst
The product could be classified as a filtering or purifying machine if its membrane function is the principal use.
If sold as a separate chemically defined palladium compound without a support
Section note 1(B) directs goods answering to heading 28.43 to be classified there, not in Chapter 38.
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 catalyst is described as a supported catalytic preparation, not as a filtration membrane, to avoid classification disputes
• Verify whether the palladium content triggers any permit requirements under Canada's chemicals or precious metals regulations
• Keep commercial invoices detailed with the support material and active substance percentages
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.