Ammonium Metatungstate Granules from Mexico
Ammonium metatungstate granules are a spray-dried form of ammonium metatungstate, a complex ammonium salt of tungstic acid. They are used primarily as a precursor for producing tungsten powder and in thermal spraying applications. As an ammonium tungstate, it falls under tariff item 2841.80.00.
Duty Rate — Mexico → Canada
0%
Import Tips
• Ensure the product is clearly identified as ammonium metatungstate on the commercial invoice
• Verify the chemical formula and purity to support classification under 2841.80.00
• Consult the CBSA's tariff classification advice service for binding rulings if uncertain