Doped Luminescent ZnS Powder 99.99% Base Purity from China
Zinc sulfide powder with a 99.99% base purity, lightly doped to achieve specific emission wavelengths for display applications. The dopant level is minimal and does not alter the chemically defined nature of the zinc sulfide, keeping it classifiable under tariff item 2830.90.00.
Duty Rate — China → Canada
0%
Import Tips
• Provide a detailed specification sheet showing the dopant concentration to demonstrate it remains a chemically defined compound
• If the dopant exceeds trace levels, consult CBSA to confirm classification
• Maintain records of the manufacturing process to support the tariff classification