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3202.90.10.00/Ammonium Aluminum Sulfate Tanning Salt/Canada

Ammonium Aluminum Sulfate Tanning Salt from Canada

Ammonium aluminum sulfate (alum) acts as an inorganic tanning agent for producing vegetable-retanned or combination leathers with firm texture. Classified under HTS 3202.90.10.00 for its purely inorganic composition and tanning application. Traditional use in glove and bookbinding leathers.

Duty Rate — Canada → United States

10%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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Import Tips

• Provide comparative analysis vs. potassium alum to confirm tanning-grade specifications

• Ensure ammonia content declarations for proper hazmat classification

• Document batch tanning trials supporting classification over general alums

Ammonium Aluminum Sulfate Tanning Salt from Canada — Import Duty Rate | HTS 3202.90.10.00