Ammonium Wolframate Crystals from China
Ammonium wolframate crystals are a metatungstate form used in photographic chemicals and corrosion inhibitors. As a defined inorganic salt of tungsten, it precisely fits the tungstates heading under this tariff item.
Duty Rate — China → Canada
PGA flags (1)Show detailsHide detailsHCActive Pharmaceutical IngredientsMay be required
- 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 2841. Logic: MATCH IF (Valid HS Code) AND (Intended Use Code) AND (Valid Canadian Product Category).
CBSA Single Window matching criteria, unknown
Import Tips
• Use the term 'ammonium tungstate' on the customs documentation, as 'wolframate' may cause confusion with the CBSA
• Provide the crystal size distribution if relevant to the product's end-use
• Keep records of the manufacturing process to demonstrate the product is a chemically defined compound