Oil Well Cement Clinker from Mexico
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 — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
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