Marco Antônio S. da Cunha Castello Branco

Cia Siderurgica Paulista manufactures and distributes flat steel products. Its products include slabs, hot & cold-rolled sheets and coils, heavy plates, and round blanks. The company supplies products to the automotive, shipbuilding, agriculture, and home appliances as well as industrial machinery manufacturing sectors. Companhia Siderurgica Paulista was founded on November 23, 1953 by Martinho Prado Uchôa and Plínio de Queiroz and is headquartered in São Paulo, Brazil.

Usiminas Mecanica SA manufactures fabricated metal products. It offers steel buildings structures, bridges, painting endorsements, residential, shipbuilding, offshore and piling steel shapes. The company was founded in 1970 and is headquartered in Belo Horizonte, Brazil.

Companhia de Desenvolvimento Econômico de Minas Gerais - Codemig engages in investments in mining sector. It mines niobium ore. The company was founded in 2003 and is headquartered in Belo Horizonte, Brazil.

Cemig Distribuição SA engages in electric energy distribution. Its solutions include study, plan, project, build, and commercially operate systems of distribution and sale of electricity and related services. The company was founded on September 8, 2004 and is headquartered in Belo Horizonte, Brazil.

Vallourec Tubos do Brasil SA manufactures hot-rolled seamless steel pipes. It produces Oil Country Tubular Goods (OCTG), such as casing, tubing and couplings with API thread connections or with VAM premium connections. The firm’s products include line pipes for offshore as well as onshore applications, structural tubes, mechanical tubes, boiler tubes, precision steel tubes, bearing tubes and machined axle tubes. The company was founded in 1952 and is headquartered in Belo Horizonte, Brazil.