Silica-Alumina Cracking Catalyst from Mexico
Amorphous silica-alumina gel catalyst for fluid catalytic cracking in refineries. Wholly inorganic composition qualifies for 3815.90.3000.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Pore volume and acidity measurements (Hammett H0) confirm catalytic specs
• Microsphere morphology (60-150μm) distinguishes FCC from other catalysts
• Rare earth content declaration affects valuation and origin rules