St. Lawrence Cement Inc. is a leading producer and supplier of products and services for the construction industry, namely cement, concrete, aggregates and construction. The annual cement production capacity is 4.8 million tonnes. The corporate office is located in Concord/Ontario, and the company employs more than 3,300 people.

St. Lawrence Cement Inc. serves around 9,000 customers in Canada and the United States through its four cement plants, 21 cement distribution terminals, one slag granulator, two mineral components distribution terminals, a GranCem facility, 43 ready-mixed concrete plants, 22 quarries and sand pits as well as its three construction companies.