Trimanganese Tetraoxide (Mn3O4) Powder from United States
Trimanganese tetraoxide (Mn3O4) powder is a mixed-valence manganese oxide used in the production of ferrites for magnetic applications and as a sintering aid in ceramics. As a chemically defined inorganic compound of manganese, it is not excluded by Chapter 28 notes. It is classified under tariff item 2820.90.00 as other manganese oxides, covering oxides not specifically named elsewhere.
Duty Rate — United States → Canada
0%
Import Tips
• Specify the exact chemical formula (Mn3O4) and purity level on the commercial invoice to avoid confusion with MnO2
• If the product is used for ferrite production, note that it is not a prepared magnetic material, which would fall under Chapter 85
• Keep a certificate of analysis to support the classification in case of CBSA inspection