Summit founder, Oldcastle Materials architect Hill joins Knife River board

Sources: Knife River Corp., Bismarck, N.D.; CP staff

Knife River shareholders have elected Thomas W. Hill, retired Summit Materials Inc. chief executive officer and longtime head of (pre-CRH Americas) Oldcastle Materials, as director for a three-year term. He serves on the Compensation plus Nominating and Governance committees, and fills the seat of Tom Everist, who was director since Knife River’s mid-2023 separation from MDU Resources Group Inc. Along with decades in Summit Materials and Oldcastle Materials executive leadership, Hill served as treasurer of the American Road and Transportation Builders Association, National Stone, Sand and Gravel Association, and National Asphalt Pavement Association.

Thomas W. Hill

“Tom Hill is very well respected in our industry and has a wealth of experience to share as we continue to establish Knife River as a leading provider of construction materials and contracting services,” says Knife River CEO Brian Gray. “His background and enthusiasm for the industry—and his success leading growth efforts—is a great fit with the Knife River culture.”

“In our extensive search for another director, Tom stood out as someone who can bring a tremendous amount of expertise to Knife River, as we focus on delivering long-term, profitable growth for our shareholders,” adds Board Chair Karen Fagg. 

Hill joins another Oldcastle veteran, retired U.S. Concrete CEO William Sandbrook, who was elected to the six-member Knife River board in 2023.

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