Zirconia-Supported Molybdenum Hydrodesulfurization Catalyst from Japan
MoS2 on zirconia promotes hydrodesulfurization removing sulfur from diesel fuel. Falls under 3815.19.00.00 as supported catalyst preparation NESOI with complex metal-support interaction.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include sulfiding procedure documentation proving activated catalyst status
• Certify zirconia purity >90% to distinguish from 3815.14 ceramic-supported catalysts
• Declare spent catalyst regeneration status; fresh vs regenerated affects valuation