Aluminum Sulfate Leather Tanning Salt from China
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 — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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