Zinc Dust for Diamond Polishing Compounds from Canada
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 — Canada → United States
13%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, 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