Ash Grove Cement Company Seattle plant, on the right (east) bank of the Duwamish River
Ash Grove Cement Company is a cement manufacturer based in Overland Park, Kansas, United States. It is the sixth largest cement manufacturer in North America, and the largest US-owned cement company.
The company was established in 1882 at Ash Grove, Missouri, as the Ash Grove White Lime Association. It commenced cement manufacture in 1908, with a plant at Chanute, Kansas. It now has an annual cement manufacturing capacity of nearly 9 million tons, from 9 plants:
The company makes Portland cements, flyash cements, masonry cements, oilwell cements and soil stabilizers. It also operates a lime plant in Oregon, many ready-mix concrete plants in the Midwest, and a limestone quarry at Blubber Bay, Texada Island, British Columbia.
On 20 October 2017, Ash Grove announced that its stockholders had approved a plan for the company to be acquired by CRH plc, a global building materials business headquartered in Ireland.