Tungsten Magnéli Phase Oxide (W18O49) from Japan
Tungsten Magnéli phase oxide (W18O49) is a non-stoichiometric tungsten suboxide used in electrochromic windows and field emission displays. Despite its non-stoichiometric composition, it is considered a chemically defined tungsten oxide under Chapter 28. It is classified under tariff item 2825.90.00 as 'Other' metal oxides.
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
• Provide a technical datasheet confirming the W18O49 composition and its intended use to support classification
• Verify whether the product meets the definition of a separate chemically defined compound under Chapter 28 Note 1
• Consult the CBSA if uncertain about the duty rate, as non-stoichiometric oxides may require additional review