 In October 2011, Argos purchased the Lafarge operations in the southeastern U.S. adding two cement plants, one clinker grinding, 79 concrete plants and five terminals to the Argos U.S. operation.Cementos Argos Corporate Headquarters is in Medellín, Colombia, and its U.S. operations headquarters is in Alpharetta, Georgia.The company operates in over 15 countries/territories around the world including