Zinc Sulfide Crystals from Japan
Zinc sulfide (ZnS) in crystalline form is used in optical coatings, phosphors, and semiconductors. Classified under HTS 2830.90.90.00 as a polysulfide or other sulfide compound meeting chemical definition criteria.
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 lab test results proving it's pure ZnS, not doped for electronics (which may go to 3818)
• Comply with REACH-like regulations for zinc compounds; declare intended end-use
• Package in inert atmosphere to prevent oxidation during shipping