Thorium Lantern Mantle Residue
Waste residues from manufacturing gas lantern mantles impregnated with thorium nitrate, retaining thorium-232 daughters. These are radioactive residues under Chapter 28 Note 4(f) and are classified under tariff item 2844.44.00.
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 residue is processed to recover thorium as a pure compound
Thorium compounds are classified under a specific tariff item.
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
• Secure a CNSC import permit and provide a thorium-232 and daughter nuclide analysis
• Ensure packaging meets Transport Canada Class 7 standards
• Coordinate with CBSA for radiation monitoring
Related Products under Tariff item 2844.44.00
Decommissioned Reactor Coolant Residue
Evaporated residues from reactor coolant systems containing tritium, cobalt-60, and other activation products. These are radioactive residues as defined in Chapter 28 Note 4(f) and are classified under tariff item 2844.44.00.
Fission Product Recovery Residue
Residues from extracting fission products such as strontium-90 and cesium-137 from spent nuclear fuel, retaining a mixture of radionuclides. These are radioactive residues under Chapter 28 Note 4(f) and are classified under tariff item 2844.44.00.
Medical Cyclotron Target Residue
Residues from bombarded cyclotron targets used for Mo-99/Tc-99m production, containing residual radionuclides. These are radioactive residues as defined in Chapter 28 Note 4(f) and are classified under tariff item 2844.44.00.
Nuclear Glovebox Contamination Residue
Swipes and HEPA filter residues from nuclear glovebox decontamination containing alpha emitters like americium-241. These are radioactive residues under Chapter 28 Note 4(f) and are classified under tariff item 2844.44.00.
Plutonium Processing Radioactive Sludge
Sludge residues from nuclear fuel reprocessing containing plutonium-239 and fission byproducts like cesium-137. These are radioactive residues under Chapter 28 Note 4(f) and are classified under tariff item 2844.44.00, not as pure compounds.
Radium Scale from Pipe Cleaning
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