Humberto Jose Rocha Braz

Bemisa - Brasil Exploração Mineral SA engages in exploration and development of gold, nickel, copper, iron, phosphate, lime stones and dolomites mines. The company was founded in 2007 and is headquartered in Rio de Janeiro, Brazil.

Brasil Telecom Participações SA is a provider of telecommunications services in Region II in Brazil. The Company offers integrated telecommunications services, which includes fixed-line and mobile telecommunications services, data transmission services (including broadband access services), Internet service provider (ISP) services and other services, for residential customers, small, medium and large companies, and governmental agencies. The Company provided services, which include Fixed-Line Telecommunications Services, Mobile Telecommunications Services, Data Transmission Services and other services. The company was founded in 1998 and is headquartered in Brasilia, Brazil