Calcium Thiosulfate Powder from China
Calcium thiosulfate (CaS2O3) powder, used in rubber processing and wastewater treatment. It is a chemically defined thiosulfate of calcium, classifiable under this tariff item as a thiosulphate.
Duty Rate — China → Canada
0%
Import Tips
• Ensure the powder is pure calcium thiosulfate with no organic additives
• Provide the chemical composition and purity certificate
• If used in wastewater treatment, check if it is a formulated product that could fall under Chapter 38