Equatorial Energia : Notice to the Market - Intesa´s Acquisition Closing

EQUATORIAL ENERGIA S.A.

Public-Held Company CNPJ/MF: 03.220.438/0001-73

NOTICE TO THE MARKET

Equatorial Energia S.A. ("Company"), having shares traded in the Novo Mercado segment at B3 S.A. - Brasil, Bolsa, Balcão under "EQTL3", following the Notice to the Market published on August 31st, 2017, informs the Market the closing of the deal through which the Company is acquiring a 51% stake at Integração Transmissão de Energia S.A. ("Intesa") ("Deal").

The last of the preceding conditions to the closing of the Deal has been fulfilled today. Among others, the preceding conditions were the approval of the terms of the Deal by (a) CADE - Brazilian Anti Trust Body, and (b) ANEEL - Brazilian Electric Energy Agency.

The Interim General-Superintendent at CADE, in October 13, 2017, published his approval, unrestricted, of the Deal. ANEEL's approval was published in the Federal Register by December 12, 2017.

Given the compliance to all the preceding conditions, the Deal was concluded and 51% of Intesa's shares were transferred to the Company, through the payment of approximately R$ 277 million referring to the acquisition price, in accordance to the Share Purchase Agreement signed by the Company in August 30, 2017.

The Company reiterates that Intesa's acquisition represents an excellent opportunity, complementary to the Company's operations and reinforces, as previously published, there is

• no incidence of Article 256, from Law 6,404/76 to this specific case, which implies that there is

• no need to obtain the approval for the deal by the Company's Shareholders' Meeting as well as

• no right of refusal.

Brasília, December 19, 2017.

Eduardo Haiama

Chief Financial and Investor Relations Officer

Equatorial Energia S.A.