Founded in 1912, St Marys Cement produces concrete and aggregate materials. It supplies cementitious materials to the Great Lakes region. The company is one of the leading producers of cement and related construction products in the United States and Canada. St Marys Cement handles engineering, civic and residential projects. The company serves the chemical, agricultural, financial, energy, and pulp and paper industries. It maintains docking facilities and more than five manufacturing plants. St Marys Cement has completed projects for Roy Thompson Hall, Maple Leaf Gardens and Darlington Nuclear Station. It operates Hutton Transport, which maintains a fleet of over 90 tractors and nearly 115 trailers. The company is a wholly owned subsidiary of Votorantim Cimentos.