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Cemig is the largest electricity distribution group in South America. It has an important role in Minas Gerais and Rio de Janeiro, through Cemig Distribuição and Light, providing energy for more than 11 million consumers.

The concession area of Cemig Distruição S/A (Cemig D) covers 567,400 square kilometers, approximately 96% of the state of Minas Gerais. 774 municipalities and 5,415 localities - providing energy for approximately 20 million of people.
In network extension, it has 525,224 kilometers of distribution network (97,900 km of urban network and 359.6 km of rural network).
The controlled company of Cemig along with Light S/A operates in the electricity distribution through Light Serviços de Eletricidades S.A. It is more than 4 million consumers served in an area of 10,970 square kilometers of the State of Rio de Janeiro, serving approximately 10 million people, 16.5 million.

Light divides its concession area in three regional: Metropolitana, Grande Rio and Vale do Paraíba, in order to make the most effective service and be close to the customer.
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