Magnesium-25 Carbonate from China
Magnesium-25 carbonate is a compound of the stable isotope magnesium-25, used in nutrition studies and isotope dilution analysis. It is not radioactive and therefore not classified under heading 28.44. This tariff item covers compounds of isotopes other than those of heading 28.44.
Duty Rate — China → Canada
0%
Import Tips
• Classify magnesium-25 carbonate under tariff item 2845.90.00 as a compound of a stable isotope
• Provide a certificate of analysis showing the isotopic enrichment
• Ensure the product is not mixed with other carbonates that could affect classification