Summit Materials Inc is engaged in the production and sale of aggregates, cement, ready-mix concrete, asphalt paving mix and concrete products and owns and operates quarries, sand and gravel pits, two cement plants, cement distribution terminals, ready-mix concrete plants, asphalt plants and landfill sites. It is also engaged in paving and related services. The Company’s three operating and reporting segments are the West, East and Cement segments. It operates in 21 U.S. states and in British Columbia, Canada and has assets in 21 U.S. states and in British Columbia, Canada through its platform.