Hydrated Magnesium Oxide Powder from China
Hydrated magnesium oxide powder is a partially hydrated form of magnesium oxide (MgO·H2O) used in rubber compounding and flame retardants. It is classified under tariff item 2519.90.00 as 'other' magnesium oxide when derived from natural calcined sources, as hydration does not constitute a process beyond Chapter 25 Note 1.
Duty Rate — China → Canada
0%
Import Tips
• Verify that the hydration is incidental and the product is not a prepared additive for specific uses, which could shift classification
• Keep records of the natural magnesite source and hydration method for CBSA