Gold on Ceria Catalyst for Oxidation from Mexico
Nanogold particles supported on cerium oxide for low-temperature CO oxidation in air purification systems. Fits HTS 3815.12.00.90 as other supported precious metal catalysts. Applied in respiratory protection and indoor air quality devices.
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
• Particle size analysis mandatory for nano-gold verification; CARB certification for emission apps; separate from jewelry gold under Chapter 71