CVD Synthetic Diamond Micron Powder 0.5-5 Microns from Japan
Chemical vapor deposition (CVD) synthetic diamond powder graded to 0.5-5 micron size (far finer than 80 mesh), used in high-precision polishing of sapphire windows and optical components. Falls under HTS 7105.10.0030 due to synthetic diamond composition and powder form exceeding 90% through 0.5 mm sieve. Ideal for aerospace and semiconductor lapping.
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
Import Tips
• Include SEM analysis or laser diffraction reports proving micron size and 80 mesh compliance for CBP verification
• Label as 'synthetic industrial diamond powder - not gem quality' to prevent jewelry misclassification under 7115/7116
• Avoid bulk packaging without inner seals; humidity control certs needed as fines can agglomerate