Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Vulcan Materials Company NYSE: VMC, based in Birmingham, Alabama is principally engaged in the production, distribution and sale of construction materials. Vulcan is the largest producer of construction materials, primarily gravel, crushed stone, and sand, and employs approximately 9,700 people at over 356 facilities. Vulcan serves 24 states, the District of Columbia and Mexico. Shipments of all construction aggregates totaled approximately 260 million tons, during the year ended December 31, 2005.