Monoclinic Tungsten Trioxide Crystals from Japan
Monoclinic tungsten trioxide crystals are synthetic crystals of WO3 grown for research and thin-film deposition in photochromic applications. As a chemically defined metal oxide, they fall under Chapter 28. Tariff item 2825.90.00 applies as an 'other' metal oxide, provided the crystals are not optical elements.
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
• Confirm that the crystals are not polished or shaped as optical elements, which would fall under Chapter 90
• Provide the CBSA with the crystal structure and intended use
• If the crystals are doped for electronics, Chapter 38 may apply