Aluminum Sulfate Leather Tanning Salt from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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