Zinc Sulfide Phosphor Precursor from China
Refined zinc sulfide used to produce ZnS:Cu/Au phosphors for electroluminescent panels. Classified in HTS 2830.90.1500 as other zinc sulfide before doping/activation. Meets inorganic compound criteria excluding finished luminophores.
Duty Rate — China → United States
37.8%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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)
Import Tips
• Document as 'precursor, undoped' to distinguish from finished phosphors (3206)
• Provide emission spectra potential (pre-activation) in technical data
• Ensure no organic stabilizers present per Chapter 28 organo-inorganic exclusion