Mendes Junior Engenharia SA, formerly known as Mendes Junior SA, is a Brazil-based company active in the civil engineering sector. The Company is mainly engaged in the heavy civil construction industry and other related activities, including equipment leasing. The Company divides its activities into 12 segments: Constructions; Oil and Gas - Onshore; Transportation - Ports and Airports; Transportation - Roadway Constructions; Hydroelectric; Pipelines; Infrastructure; Energy; Electromechanical; Industrial Maintenance; Offshore Platforms, and Industries. As of December 31, 2011, the Company had one wholly owned subsidiary, Companhia Brasileira de Desenvolvimento Economico e Social (CBDES). As of October 20, 2011, Edificadora SA was the major shareholder of the Company, with 95.36% of total number of shares.