Calcined Flint Powder Road Dusting from Canada
Calcined (heat-treated) flint powder for road surface dusting and stabilization. HTS 2517.10.0055 includes heat-treated powders of such stones for road metalling. Dust suppression properties.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Calcination temp records (>800°C) validate processing
• Respirable silica warnings on SDS required
• Pneumatic unloading specs for powder handling