Vulcan Materials Company, the nation's largest producer of construction aggregates, today announced that it has reached a definitive agreement with SPO Partners to acquire its aggregates business, Aggregates USA LLC for $900m in cash. Aggregates USA LLC operates 31 facilities serving high growth markets in Georgia, Florida, Tennessee, South Carolina and Virginia. "We are pleased to have reached agreement with SPO Partners for these strategic assets, which enhance our ability to serve high growth markets throughout the southeastern U.S." Tom Hill Vulcan's Chairman and Chief Executive Officer.