Knife River acquires assets of Donaldson Brothers Ready Mix, no terms disclosed

Knife River (KNF) announced that it has acquired the assets of Donaldson Brothers Ready Mix, an aggregates-based ready-mix supplier in western Montana. This is Knife River’s third acquisition in its Mountain Segment in 2026. Donaldson is a supplier of aggregates and ready-mix in the growing Bitterroot Valley, south of Missoula. In addition to three aggregates sources that provide the business with over 30 years of supply, Donaldson operates a ready-mix plant and manufactures precast concrete products.