Zinc Sulfide Phosphor Powder from China

Fine powder of zinc sulfide doped with activators like copper or manganese, used as a green or blue-emitting luminophore in glow-in-the-dark paints and coatings. Classified under HTS 3206.50.00.00 as an inorganic product specifically designed for luminescence applications, fitting the chapter's scope for luminophores whether chemically defined or not.

Duty Rate — China → United States

41.5%

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

Verify chemical purity and activator content via lab analysis to confirm luminophore function and avoid reclassification as general inorganic chemicals under Chapter 28

Provide Safety Data Sheets (SDS) and emission spectra documentation to customs for proof of use as luminophores

Avoid common pitfalls like mislabeling as 'pigment' without specifying phosphor properties, which could shift to heading 3206 other subheadings