Type IL Portland-Limestone Cement from Canada
Type IL Portland-limestone cement contains up to 15% limestone interground with clinker, offering similar performance to traditional Portland with lower CO2 footprint. It qualifies under HTS 2523.29.00.00 as other Portland cement since limestone is a permitted addition. Used increasingly for sustainable concrete mixes.
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
• ASTM C595 Type IL test reports mandatory; limestone content must not exceed 15% per specs; watch for reclassification if limestone >15% as filler blends