Tungsten Oxide Vanadate Mixture from Mexico
Mixed metal oxide powder of tungsten trioxide and vanadium pentoxide for selective catalytic reduction (SCR) systems in emissions control. Inorganic catalyst base material. Classified under 3824.99.3500 for tungsten-containing inorganic mixtures.
Duty Rate — Mexico → United States
16.5%
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
• Provide SCR system end-use verification to support catalyst classification
• Fine dust hazard - requires NIOSH-approved respirators for handling
• Check state VOC regulations for catalyst coating applications