Ultra-Fine Boron Carbide Nanopowder <500nm from Canada
Nanoscale boron carbide powder with average particle size <500nm for advanced composites and coatings. Meets HTS 2849.90.10.00 criteria as chemically defined boron carbide nanomaterial.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include TEM/SEM analysis confirming particle size distribution for nanomaterial classification
• Declare surface area (BET method) as >10 m²/g distinguishes from conventional powders
• Special handling for inhalation hazards; require NIOSH-approved respirators