Alum Cake (Aluminum Sulfate Byproduct) from United States
Alum cake is a solid byproduct of water treatment processes, primarily composed of aluminum sulfate (Al2(SO4)3). It is a chemically defined compound of aluminum and falls under tariff item 2833.22.00 as an aluminum sulfate.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the product is clearly identified as aluminum sulfate byproduct to avoid misclassification
• Have a certificate of analysis ready to confirm chemical composition
• Check with CBSA for any environmental regulations on byproduct imports