Oil Well Cement Clinker from Canada
Oil well cement clinker is engineered for high-pressure, high-temperature oilfield applications with specific API Class grades. It qualifies as hydraulic cement clinker under HTS 2523.10.00.00 before grinding to API specifications.
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
• Include API Class certification (e.g
• Class G, H) proving hydraulic properties for oilfield use
• Declare thickening time and compressive strength data to support clinker status