Zinc Dust for Diamond Polishing Compounds from Japan
Ultra-fine zinc dust meeting chapter note (c) specs, used as a binder in diamond polishing slurries for gemstone and industrial diamond finishing. Falls under 7903.90.60.00 as other zinc dust/powders/flakes.
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
• Submit production process documentation proving vapor condensation to avoid reclassification as generic powder
• Ensure dust is packaged in inert atmospheres to prevent oxidation during ocean transit
• Comply with REACH regulations if importing to EU markets post-clearance