High-Purity Zinc Sulfide (99.99%) for Thin Films from Mexico
Ultra-pure zinc sulfide granules for physical vapor deposition (PVD) in optical thin films. Falls under HTS 2830.90.1500 as other zinc sulfide, chemically defined and not excluded by chapter notes on worked forms. Essential for anti-reflective and protective coatings.
Duty Rate — Mexico → United States
12.8%
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
• Submit ICP-MS analysis confirming >99.99% purity to support 'chemically defined' status
• Declare evaporation source form (granules/powder) to prevent confusion with fabricated parts
• Comply with REACH-like US chemical import notifications for optical chemicals