Molybdenum Trioxide Catalyst from Japan
Pure molybdenum trioxide (MoO3) used as a catalyst in petroleum refining processes like hydrodesulfurization. This inorganic compound falls under HTS 3815.90.2000 because it consists wholly of inorganic substances, specifically molybdenum, and serves as a reaction accelerator not specified elsewhere.
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
• Verify purity and composition via lab analysis to confirm 100% inorganic molybdenum content for this subheading
• Include safety data sheets (SDS) documenting non-toxicity and catalytic use to avoid hazardous material surcharges