Florida Rock Industries, Inc., whose predecessors began business in 1929, was incorporated in Florida in 1945. Florida Rock Industries, Inc. and its subsidiaries (the "Company"), are principally engaged in three business segments: construction aggregates, concrete products and cement and calcium products. The construction aggregates segment is engaged in the mining, processing, distribution and sale of sand, gravel and crushed stone. The concrete products segment is engaged in production and sale of ready mix concrete, concrete block, prestressed and precast concrete as well as sales of other building materials. The cement and calcium products segment is engaged in the production and sale of portland and masonry cement, the importation of cement and slag which are either sold, ground or blended and then sold and sale of calcium products to the animal feed, paint, plastics and joint compound industries. Substantially all operations are conducted in Florida, Virginia, Georgia, Maryland, Washington D.C., Tennessee, Alabama, North Carolina, Illinois and Delaware. The Company also has an investment in a crushed stone plant in Charlotte County, New Brunswick, Canada and a distribution yard in New York City, New York.