Ultra-High Purity Luminescent Zinc Sulfide (5N Grade) from China
5N (99.999%) luminescent grade zinc sulfide, exceeding the 99.99% threshold, for advanced phosphor applications in lasers. Covered by HTS 2830.90.1000 as zinc sulfide luminescent grade with specified minimum purity. Chapter notes confirm inclusion as chemically defined.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Use ICP-MS analysis reports for sub-ppm impurity proof; high-value goods need detailed valuation support
• ITAR/EAR checks for defense end-uses