Marcel Cecchi Vieira

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

Part of LPC Finanças e Participações Ltda., Laplace Finanças Empreendimentos e Participações Ltda. is a financial advisory company based in São Paulo, Brazil. The Brazilian company brings together experienced market professionals in investments and financial advisory, generating results and building long-term relationships with investors and clients.

Usinas Itamarati SA is a Brazilian company that manufactures inorganic chemicals. The private company is based in São Paulo, Brazil.