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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