Summit Materials, Inc., through its subsidiaries, produces and sells construction materials and related downstream products for the public infrastructure, residential and nonresidential, and other markets. It operates in three segments: West, East, and Cement. The company's products include aggregates, cement, ready-mix concrete, asphalt paving mixes, and concrete products, as well as plastics components. It also provides paving and related services primarily comprising asphalt paving services to the private and public infrastructure sectors. In addition, the company operates municipal waste, construction, and demolition debris landfills; and liquid asphalt terminal. It has operations in the United States; and British Columbia, Canada. The company was founded in 2009 and is headquartered in Denver, Colorado.