Zinc Sulfide Crystals from United States
Zinc sulfide (ZnS) crystals, a chemically defined inorganic compound, used in optical coatings, phosphors, and semiconductor applications. They are classified under tariff item 2830.90.00 as 'other' sulfides, provided they are not doped for electronics use.
Duty Rate — United States → Canada
0%
Import Tips
• If the crystals are doped for electronics and cut into discs or wafers, they fall under heading 38.18, not this item
• Confirm the crystals are not optical elements of heading 90.01
• Keep records of the crystal form and any treatments applied