Aluminum Sulfate Leather Tanning Salt from Canada
Aluminum sulfate serves as an inorganic tanning agent, particularly in combination with chrome salts, to produce combination-tanned leathers with enhanced stability. Classified under HTS 3202.90.10.00 as it consists entirely of inorganic substances used specifically for pre-tanning or tanning hides. It helps achieve firmer leather grain and improved heat resistance.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide technical data sheets confirming exclusive use in tanning to distinguish from water treatment chemicals
• Ensure packaging labels specify 'tanning preparation' to avoid classification as industrial alum under 2833
• Check for pH specifications as importers often face issues with acidity declarations