The Monarch Cement Company engages in the manufacture and sale of portland cement in the United States. The company also sells masonry cement, ready-mixed concrete, concrete products, and sundry building materials. It serves contractors, ready-mixed concrete plants, concrete products plants, building materials dealers, and governmental agencies. The company sells its products in the State of Kansas, the State of Iowa, southeast Nebraska, western Missouri, northwest Arkansas, and northern Oklahoma. The Monarch Cement Company was founded in 1908 and is based in Humboldt, Kansas.