Vanadium Dioxide Nanoparticles from Mexico
Vanadium dioxide nanoparticles are engineered for optical switching applications in photonics and camouflage materials. As pure V O2 in unworked powder form, they classify under HTS 2825.30.00 per Chapter 28 notes on chemically defined oxides. Size control enables phase transition at lower temperatures.
Duty Rate — Mexico → United States
5.5%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Declare average particle size and purity >99% to maintain oxide classification; follow US EPA nanomaterial reporting; use certified reference materials for assay