Doped Luminescent ZnS Powder 99.99% Base Purity from Mexico
Zinc sulfide luminescent grade powder (99.99% ZnS purity) lightly doped for specific emission wavelengths in displays. Still classifiable under HTS 2830.90.1000 if dopant levels keep it chemically defined as primary zinc sulfide. Minimal doping doesn't alter base classification.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Disclose dopant percentage (<1%) to avoid Chapter 38 reclass; provide emission spectrum data
• Test for homogeneity in samples