Calcium Tungstate Luminescent Powder from Mexico
Fine calcium tungstate powder activated for blue luminescence in cathode ray tubes and lighting phosphors. It is a chemically defined tungstate of calcium, classified under this tariff item per Chapter 28 notes, and used in legacy display technologies.
Duty Rate — Mexico → Canada
0%
Import Tips
• If the powder is activated with rare earth elements, provide the full chemical composition to ensure correct classification
• Note that products of a kind used as luminophores may fall under Chapter 32 if put up for that specific use
• Keep documentation of the activation process to support the tariff classification