Ditungsten Trioxide (W2O3) Technical Grade from China
Ditungsten trioxide (W2O3) is a technical-grade tungsten oxide used in alloy production and high-temperature ceramics. It is a chemically defined compound of tungsten and oxygen, falling under Chapter 28. Tariff item 2825.90.00 applies as an 'other' metal oxide, provided the product is not mixed with other substances.
Duty Rate — China → Canada
0%
Import Tips
• Verify the exact stoichiometry of the tungsten oxide, as different oxides may be classified differently
• Provide the CBSA with the chemical formula and purity analysis
• If the product is used in ceramics with other additives, classification may shift