Alabama-based Vulcan Materials Company, which operates primarily in the United States, has four main segments: Aggregates, Asphalt, Concrete, and Calcium. The Aggregates segment provides various products and services for the construction and maintenance of highways, streets, public works, housing, and commercial and industrial facilities, utilizing crushed stones, sand, gravel, and other aggregates. Meanwhile, the Asphalt Mix segment offers asphalt in six states, with construction paving activity in Alabama, Tennessee, and Texas. The Concrete segment provides ready-mixed concrete in eight states and Washington D.C. Lastly, the Calcium segment mines, produces, and sells calcium products for the animal feed, plastics, and water treatment industries. Vulcan Materials Company, which dates back to 1909 and was formerly known as Virginia Holdco, is now headquartered in Birmingham, Alabama.