Synthetic Diamond Dust for Lapping and Polishing from Japan
Synthetic diamond dust in powder form (90%+ <0.5mm) optimized for precision lapping of carbide and ceramic components. Falls under HTS 7105.10.0050 as 'other' synthetic diamond powder, separate from diamond jewelry or tools. Synthetic per chapter notes, excluding natural stones.
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
• Label shipments clearly as 'synthetic diamond powder - industrial abrasive grade' with CVD/HPHT production method noted
• Retain third-party sieve analysis reports; customs often tests for powder compliance