Zirconium Oxide Solid Acid Catalyst from Mexico
Sulfated zirconia catalyst for alkylation reactions in gasoline production. Inorganic zirconia base qualifies for 3815.90.3000.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Acid site density measurement (Hammett acidity) confirms catalytic strength
• Thermal stability >500°C distinguishes from ceramic materials
• Sulfate content <10wt% maintains inorganic classification