Nano-Zirconium Carbonate Particles from Mexico
Nanoparticulate zirconium carbonate (<100nm) for advanced catalysts and coatings. Remains under HTS 2836.99.50.10 as chemically defined carbonate, not doped electronics per Chapter note. Enhances catalytic efficiency in petrochemical processes.
Duty Rate — Mexico → United States
3.7%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Declare particle size and certify non-doped per Chapter 28 note on electronics; TSCA notification for new nano forms
• Pitfall: misclass as 'worked' to 3818