Alberto Ribeiro Guth

Zain Participações SA is engaged in financial investment and shareholding activities. Its objective is participation in other companies as a partner or shareholder, in real estate ventures and as a shareholder in investment funds regularly constituted. The company was founded on February 4, 1998 and is headquartered in Rio de Janeiro, Brazil.

Invitel Legacy SA engages in financial investment, portfolio management, and shareholding activities. Its interests focus on the telecommunications and securities sectors. The company was founded on July 23, 2008 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

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.

Elevadores Atlas Schindler Ltd. manufactures, installs and markets elevators, lifts, escalators and other related products. The company has two production units located in Londrina-PR and Campo Grande-RJ and also a factory for other related accessories in the city Sao Paulo. Atlas Schindler was founded in 1874 and is headquartered in Sao Paulo, Brazil.

Investidor Profissional Gestão de Recursos Ltda. (IP) is an independent asset management firm headquartered in Rio de Janeiro, Brazil. The firm was founded in 1989 by Christiano Fonseca Filho and Ribeiro Vinháes. IP manages equity funds and hedge funds for individual and institutional Brazilian and foreign investors.

Victoria Capital Partners LP is an Independent Private Equity firm founded in 2006. Victoria Capital Partners LP is headquartered in Lisbon.

Companhia Providência Indústria e Comércio is engaged in the manufacture and sale of plastic products and nonwoven fabrics. Its product categories includes Hygienic Disposable Products, Medical and Hospital Disposable Devices, and Durable Goods. The Hygienic Disposable Products segment includes disposable diapers, sanitary pads, cleansing tissues, and products for incontinence problems. The Medical and Hospital Disposable Devices segment comprises of clothing items and disposable devices for medical protection such as masks, caps, shoe covers, blankets, bed sheets, and aprons. The Durable Goods segment includes bed and table wares, mattresses, comforters, pillows, sofas, furniture, shoes, suitcases, purses, internal car cover, ecobags, sports clothing and accessories, and agricultural covers. The company was founded on June 14, 1963 and is headquartered in Sao Jose dos Pinhais, Brazil.

Estre Ambiental SA provides waste management and treatment services. It services include collection and transport, cleaning, appreciation, treatment, laboratory analysis and integrated management. The firm also provides in-situ remediation services for contaminated soils, oil and gas drilling, recovery and supplies drilling rigs. The company was founded in 1999 by Wilson Quintella Filho and is headquartered in São Paulo, Brazil.

Angra Infraestrutura Gestão de Informações e Investimentos is a Private Equity firm, a subsidiary of Angra Partners Gestão de Recursos SA (Investment Management) founded in 2005. Angra Infraestrutura Gestão de Informações e Investimentos is headquartered in São Paulo.

A Geradora Aluguel de Máquinas SA provides construction machinery rental services. It also engages in the lease and rental of construction machinery. The company was founded in 1989 and is headquartered in Salvador, Brazil.

TG Participaçoes SA provides investment services.

TG Agro Industrial Ltda. engages in production of ethanol. Its products include anhydrous and hydrated ethanol and sugarcane bagasse. The company was founded on May 20, 1996 and is headquartered in Aldeias Altas, Brazil.