Phosphor-Grade Zinc Sulfide Granules 99.99% Pure from Mexico
Granular form of zinc sulfide, luminescent grade at 99.99% purity or higher, used in manufacturing cathode ray tube phosphors and fluorescent lamps. This product is specifically covered by HTS 2830.90.1000 as a high-purity sulfide for luminescent applications per Chapter 28 notes. Purity distinguishes it from commodity zinc sulfides.
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
• Obtain third-party assay reports for purity verification during customs; specify 'luminescent grade' on commercial invoice
• Check for REACH-like restrictions on sulfides in destination markets