César Vaz de Melo Fernandes

Companhia de Gás de Minas Gerais distributes piped natural gas. The firm also has a virtual pipeline distribution system in order to provide with liquefied natural gas (LNG) and compressed natural gas (CNG) the clients that are not located around its physical distribution network. The company was founded on July 15, 1986 and is headquartered in Belo Horizonte, Brazil.

Axxiom Solucoes Technologicas SA provides solutions, development and maintenance of management systems. It provides solution for utilities, combining engineering and information technology. The company was founded in 2007 and is headquartered in Belo Horizonte, Brazil.

Madeira Energia SA generates hydroelectric power. It also engages in the construction and operation of a hydroelectric plant. The company was founded on August 27, 2007 and is headquartered in São Paulo, Brazil.

Santo Antônio Energia SA engages in the construction, operation, and maintenance of hydroelectric power generation and transmission facilities. The company was founded on January 17, 2008 and is headquartered in São Paulo, Brazil.

Ativas Data Center SA provides software and network development services. Its solutions include infrastructure, servers, middleware, users, hosting, data, applications, networks, database, cloud computing, security, and monitoring. The company was founded on January 22, 2009 and is headquartered in Belo Horizonte, Brazil.

CEMIG Geração e Transmissão SA engages in electricity generation and transmission activities. It specializes in the provision of power supply and distribution support services. It also focuses on the installment, management, and operation of thermal development, hydroelectric power, and wind generation plants. The company was founded on September 8, 2004 and is headquartered in Belo Horizonte, Brazil.

Luce Empreendimentos e Participações SA engages in investments in other companies. The company was founded on December 17, 2009 and is headquartered in Belo Horizonte, Brazil.