Zinc Sulfide Nanopowder from Japan
Ultrafine zinc sulfide particles (<100nm) for quantum dot synthesis and anti-reflective coatings. HTS 2830.90.1500 covers this as other zinc sulfide, a pure inorganic compound meeting chemical definition standards. Used in advanced displays and solar cells.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include particle size distribution and TEM images in documentation to justify nano-grade purity
• Watch for TSCA pre-notice requirements for novel nanomaterials entering US commerce
• Avoid bulk packaging misdeclared as industrial chemicals (3824) by specifying exact composition