Cristiane Barretto Sales

Vivo Participaçoes SA provides wireless telecommunication services. Its services include phone data transmission, mobile internet services, voice and data transmission, such as access to mobile broadband Internet, video transmission and other on-line communication formats. The company was founded in 1998 and is headquartered in São Paulo, Brazil.

The Company's principal activity is to provide public, private and industrial telephone, leased lines and data transmission services. It operates in the market of cellular mobile telephone, internet, telex transmission and other related services in the state of Minas Gerais.

Claro SA engages in the provision of telecommunications services to corporate and individual clients. It offers fixed and mobile telephony, broadband internet, and cable television subscriptions in prepaid and postpaid billing schemes. The company was founded in 1992 and is headquartered in Sao Paulo, Brazil.

Part of Arthur Andersen LLP, Arthur Andersen & Co. SC is a Brazilian company.

Vivo SA provides cellular telecommunications services. It is a cellular operator in the states of Acre, Alagoas, Amapa, Amazonas, Bahia, Ceara, Espirito, Santo, Goias, Maranhao, Mato Grosso, Para Parana, Pernambuco, Rio Grande do Norte, Rio Grande do Sul and Rondonia. It serves the telecommunication industries. The company is headquartered in Sao Paulo, Brazil.