COMPANHIA ENERGÉTICA DE MINAS GERAIS - CEMIG

LISTED COMPANY - CNPJ 17.155.730/0001-64 - NIRE 31300040127

MARKET ANNOUNCEMENT Preliminary talks on possibility of disposal of Light's interest in Renova

In accordance with CVM Instruction 358 of January 3, 2002, Cemig (Companhia Energética de Minas Gerais), a listed company with securities traded on the stock exchanges of São Paulo, New York and Madrid, hereby reports to the Brazilian Securities Commission (CVM), the São Paulo Stock Exchange (BM&F Bovespa S.A.) and the market in general, as follows:

On today's date Light S.A., an affiliated company of Cemig, published the following Market

Announcement:

" Light S.A., in accordance with CVM Instruction 358 of January 3, 2002, hereby informs its stockholders and the market in general as follows:

Light Energia S.A. ('Light Energia'), a wholly-owned subsidiary of Light S.A., is holding preliminary talks with a view to the possible disposal of the equity interest that it holds in Renova Energia S.A.

Light Energia takes this opportunity to state that at present there is no final agreement on the terms and conditions of any transaction, nor is there any commitment in existence able to bind Light Energia to enter into any such transaction.

The stockholders of Light S.A. and the market in general will be informed on the progress of any negotiations in accordance with the applicable legislation. "

Cemig will keep the market opportunely and appropriately informed on developments in this matter.

Belo Horizonte, May 7, 2015.

Fabiano Maia Pereira

Chief Finance and Investor Relations Officer

Av. Barbacena 1200 Santo Agostinho 30190-131 Belo Horizonte, MG Brazil Tel.: +55 31 3506-5024 Fax +55 31 3506-5025

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This text is a translation, provided for information only. The original text in Portuguese is the legally valid version.

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