Chemical-Grade Flux Limestone from Canada
Ultra-pure limestone flux for chemical processes requiring consistent calcium source, such as precipitated calcium carbonate production. HTS 2521.00.00.00 applies to its role in lime-based chemical manufacturing. Low silica ensures purity in end products.
Duty Rate — Canada → United States
10%
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
• Chemical analysis certificates critical for ultra-low impurity claims
• Specify chemical end-use in commercial invoices
• Powdered forms risk 2517 if not documented as flux