Vulcan Materials Company is a producer of construction aggregates, primarily crushed stone, sand and gravel, a producer of asphalt mix and concrete and a producer of cement in Florida. It operates in three segments: Aggregates, Asphalt mix and Concrete, and Cement. In April 2008, it announced that it had completed the divestitures required for Vulcan's acquisition of Florida Rock Industries, Inc., which closed on November 16, 2007. The divestitures were completed in a series of three independent transactions. In a transaction with Martin Marietta Materials, Inc., Vulcan sold four quarries and a greenfield site in Georgia and a quarry in Tennessee. With the Luck Stone Corporation, Vulcan exchanged a former Florida Rock quarry and a sales yard in Virginia for Luck Stone quarries in Elkton and Augusta, Virginia. In a third transaction, Vulcan sold its interests in a quarry in Georgia to The Concrete Company, which had been the joint venture partner with Florida Rock in this operation.