Tungsten Trioxide Powder (WO3) from Mexico
Tungsten trioxide powder (WO3) is a yellow-green powder used in the production of tungsten metal and as a catalyst. It is a chemically defined tungsten oxide, distinct from tungstates, and falls under tariff item 2825.90.00 as 'Other' metal oxides. The product is not excluded by Chapter 28 notes.
Duty Rate — Mexico → Canada
0%
Import Tips
• Ensure the product is labelled as tungsten trioxide (WO3) with purity specifications on the commercial invoice
• Verify the duty rate for tariff item 2825.90.00, which may be duty-free under certain trade agreements
• Keep a certificate of analysis to support the chemical composition if requested by the CBSA