Empresas ICA, S.A.B. de C.V. is a holding company that conducts all of its operations through subsidiaries that perform civil and industrial construction and engineering; engage in real estate and home development, and operate infrastructure facilities, including airports, toll roads and water treatment systems. The Company operates in five segments: Civil Construction, Industrial Construction, Concessions, Airports, and Corporate and Other. It is an engineering, procurement and construction company, and a provider of construction services to both public and private−sector clients in Mexico and abroad. It is engaged in a range of construction and related activities, involving the development and construction of infrastructure facilities, as well as industrial and urban construction. It is engaged in the construction, maintenance and operation of airports, highways, social infrastructure and tunnels, and in the management and operation of water supply systems.