High-Calcium Limestone Flux from Mexico
High-calcium limestone flux is coarsely crushed stone with at least 95% calcium carbonate, used in blast furnaces to remove impurities. It falls under this tariff item as limestone flux, a calcareous stone for lime-related metallurgical processes, and is not processed beyond crushing or screening.
Duty Rate — Mexico → Canada
0%
Import Tips
• Ensure the limestone is not roasted or calcined, as that would change classification
• Provide purity certificates to confirm high calcium content for flux use
• Use tonnes as the unit of measure, excluding water weight