Synthetic Zinc Sulfide Crystals from China
Laboratory-grown zinc sulfide single crystals used in infrared optics and laser components. Classified under HTS 2830.90.1500 as other zinc sulfide, fitting the chemically defined inorganic compound definition excluding optical elements per Chapter 28 Note 2(h). Ideal for high-transmission windows in thermal imaging.
Duty Rate — China → United States
40.3%
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
• Provide X-ray diffraction (XRD) reports confirming cubic/sphalerite structure to distinguish from natural mineral (2608)
• Ensure declaration specifies 'chemically defined' to avoid reclassification under mineral Chapter 26
• For crystal forms, confirm not cut/polished optical elements (9001) via manufacturing process documentation