With a location in St. Bonifacious, Minn., Cemstone Products Company is a part of Cemstone. Operational for more than 80 years, Cemstone is one of the leading providers of ready-mix, engineered and decorative concrete products in the Midwest. It owns and operates a network of ready-mix concrete plants and aggregate facilities. The company offers a range of aggregate products, concrete masonry units, bricks and decorative stones. Its engineering services include plastic and hardened concrete testing, consulting, forensic and petrographic examination and certified lab testing. The company employs licensed engineers, geologists, certified field technicians and support personnel. It sponsors and supports the John Kriesel Project and Schwan Super Rink. Cemstone offers more than 10,000 professional-grade concrete and masonry items through its network of supply stores.