2830.90.15.00/Zinc Sulfide Powder (Luminescent Grade)/Japan

Zinc Sulfide Powder (Luminescent Grade) from Japan

High-purity zinc sulfide powder used as a phosphor precursor in manufacturing glow-in-the-dark materials and fluorescent pigments. It falls under HTS 2830.90.1500 as 'other zinc sulfide,' a chemically defined inorganic sulfide compound not specified elsewhere in heading 2830. This non-sphinglerite form is prized for its optical properties in lighting and displays.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter

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Import Tips

• Verify chemical purity via certificate of analysis (COA) to confirm classification as chemically defined zinc sulfide per Chapter 28/29 notes

• Include Safety Data Sheet (SDS) showing non-radioactive, non-toxic handling; avoid misclassification as pigments (3206)

• Declare exact CAS number (1314-98-3) on entry to prevent scrutiny as organo-inorganic compounds excluded by Chapter 28 Note 2