Dufferin Aggregates is a division of CRH Canada Group Inc., a part of CRH plc’s Americas Materials, North America’s leading vertically integrated supplier of aggregates, asphalt, cement, ready mixed concrete, paving and construction services. We are a member of CRH plc, a global building materials company with a proud and successful history, a strong track record of performance and a clear commitment to safety and ethical business practices. The company employs over 90,000 people in 37 countries around the world.