Sodium Aluminum Sulfate Hydrate from Canada
Sodium alum (NaAl(SO4)2·12H2O), also known as soda alum, is used in paper manufacturing and as a food additive (SAS). It is classified under HTS 2833.30.00.00 for its alum structure as a double sulfate.
Duty Rate — Canada → United States
11.6%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• For food-grade, include FDA compliance docs; test hydration level to distinguish from anhydrous forms
• Avoid bulk packaging mix-ups with single salts