Tungsten Dioxide (WO2) Nanopowder from Japan
Tungsten dioxide (WO2) nanopowder is a chemically defined tungsten oxide used in infrared shielding coatings and gas sensing elements. Its nanoparticle form does not alter its classification as an inorganic oxide under Chapter 28. It falls under tariff item 2825.90.00 as 'Other' metal oxides, consistent with the chapter's coverage of separate chemically defined compounds.
Duty Rate — Japan → Canada
PGA flags (2)Show detailsHide detailsCFIAAll ProgramsRequiredHCActive Pharmaceutical IngredientsMay be required
- CFIA
All Programs · Required
CANADIAN FOOD INSPECTION AGENCY: CFIA All Programs requires review / declaration data. CBSA's Single Window matching criteria match this classification number (Equal To 2825900000).
- HC
Active Pharmaceutical Ingredients · May be required
May require HC Active Pharmaceutical Ingredients depending on intended use (HC13) and Canadian product category (HC01). Matching criteria: Starts With 2825. Logic: MATCH IF (Valid HS Code) AND (Intended Use Code) AND (Valid Canadian Product Category).
CBSA Single Window matching criteria, unknown
Import Tips
• Declare the product as tungsten dioxide (WO2) nanopowder, including particle size and purity in the commercial invoice
• Confirm with the CBSA whether the nanopowder form requires any special documentation, such as safety data sheets
• Check if the product qualifies for duty-free treatment under a free trade agreement by providing a valid certificate of origin