Cerium Oxide Polishing Catalyst from Canada
Ceria nanoparticles catalyzing chemical mechanical planarization in semiconductor manufacturing. Classified under 3815.90.3000 as inorganic reaction accelerator.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• ITAR/EAR export controls may apply for semiconductor end-use; obtain validated licenses
• Particle size <50nm and zeta potential specs confirm catalytic grade
• Radioactive impurity limits (<1ppm) required for cleanroom certification