Ultrahigh Purity Copper Sulfate from United States
Ultrahigh purity copper sulfate (99.999% CuSO4) is used in semiconductor doping and advanced materials research. It is a chemically defined compound and falls under this tariff item as a sulfate of copper; the electronic grade designation does not change classification, as it is not in a worked form.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the product is in powder or crystalline form, not as discs or wafers, which would fall under Chapter 38
• Provide a certificate of analysis to CBSA to confirm purity and chemical identity
• Check if the product requires an import permit under the Export and Import Permits Act if used in controlled technologies