Pozzolanic Hydraulic Cement Blend from Canada
Blend of Portland clinker (<50%), fly ash, and gypsum creating hydraulic set via pozzolanic reaction. HTS 2523.90.00.00 for such composite other hydraulics. Sustainable alternative for low-carbon concrete.
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
• Clinker fraction analysis critical; >50% becomes Portland cement
• Fly ash quality certs (Class F/C) required for green building claims
• Avoid declaring as 'slag substitute' which confuses with 2523.28