Nano Chromium Oxide Powder from Mexico
Nanoparticle chromium(III) oxide (20-50 nm) used in advanced ceramics and catalysts. Falls under HTS 2819.90.00.00 as the particle size does not affect inorganic compound classification.
Duty Rate — Mexico → United States
13.7%
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
• Include TEM/SEM analysis confirming primary particle size and agglomeration state
• Declare specific surface area (BET) data for reactivity assessment
• Provide toxicological data for nanoparticles under emerging nanomaterial regulations