Zinc Sulfide Phosphor Precursor from United States
Refined zinc sulfide used to produce ZnS:Cu/Au phosphors for electroluminescent panels. In its unactivated state, this product is a chemically defined sulphide, classifiable under tariff item 2830.90.00.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm the product is not already activated with copper or gold, which would make it a prepared luminophore
• Provide documentation on the refining process and purity
• If the product is for electroluminescent panels, ensure it is not part of a complete panel