Zirconia-Supported Gold Catalyst for CO Oxidation from Mexico
Gold nanoparticles on zirconia carrier for low-temperature carbon monoxide oxidation in fuel cell applications and air purification. HTS 3815.90.5000 covers this as a catalytic preparation not specifically enumerated.
Duty Rate — Mexico → United States
15%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Gold content verification by certified assayer prevents disputes
• Nano-particle size declarations for TSCA new chemical review
• Fuel cell end-use certification avoids defense export controls