Ammonium Metatungstate from Japan
Ammonium metatungstate (AMT) is a soluble white powder with the formula (NH4)6[H2W12O40]·xH2O, used in catalysts, fire-retardant treatments, and electroplating solutions. It is an ammonium salt of tungstic acid in its polymeric metatungstate form, falling squarely within the tungstates heading.
Duty Rate — Japan → Canada
0%
Import Tips
• Declare the exact hydration level and assay purity on the invoice, as these affect the customs value calculation
• If the product is used as a catalyst precursor, keep documentation of its chemical composition ready for CBSA verification
• Verify whether the product qualifies for any free trade agreement preferential tariff treatment based on its country of origin