Potassium Tungstate from China
Potassium tungstate (K2WO4) is an inorganic salt of tungstic acid, used in fireproofing textiles and as a catalyst precursor. It is classified under tariff item 2841.80.00 as a tungstate (wolframate), being a separate chemically defined salt of an oxometallic acid. The product meets Chapter 28 criteria for chemically defined inorganic compounds.
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
• Ensure the potassium tungstate is not mixed with organic substances, as that could change classification
• Keep documentation showing the chemical formula and purity
• Verify if the product is for industrial use, which may affect duty rates or require permits