Ammonium Tungstate Powder from China
Ammonium tungstate powder is an ammonium salt of tungstic acid, classified as a tungstate under heading 28.41. It serves as a key precursor in the production of tungsten carbide for cutting tools and as a source of tungsten in various chemical processes.
Duty Rate — China → Canada
0%
Import Tips
• Provide the exact chemical composition and CAS number on shipping documents to expedite CBSA clearance
• Confirm the powder is free of organic impurities that might shift classification
• Consider using a customs broker familiar with chemical imports