Lehigh Hanson, Inc. is one of the largest construction materials companies in North America with more than 550 active operations in the U.S. and Canada. Lehigh Hanson and its affiliated companies produce aggregates, cement, slag, concrete and other related building materials. Lehigh Hanson is part of HeidelbergCement, one of the worldÍs largest integrated manufacturers of building materials with leading market positions in aggregates, cement and ready mixed concrete. Following the acquisition of Italcementi, the company employs some 62,000 people at more than 3,000 locations in around 60 countries.