From Business: Based in Lake City, S.C., Carolina Prestress Corp. is an independent American-owned concrete block manufacturer. It produces standard (gray) and architectural (colored)…

From Business: Holcim is one of the world s leading suppliers of cement; aggregates, including gravel and sand; concrete; and construction-related services. From its origins in Switzerland,…

From Business: Giant Cement Holding, a subsidiary of Spain's Cementos Portland Valderrivas, produces portland and masonry cement and related aggregates. The company operates limestone…