Light : Resignation of Alternate Board Member

LIGHT S.A.

Corporate Taxpayer‘s ID (CNPJ/MF): 03.378.521/0001-75

Company Registry (NIRE): 33.300.263.16-1

Publicly Held Company

NOTICE TO THE MARKET

Light SA (“Company” or “Light”) (B3: LIGT3), in compliance with the provisions of CVM Instruction 358, of January 3, 2002, as amended, hereby informs its shareholders and the market in general that Mr. Márcio Guedes Pereira Junior, elected as alternate member of the Board of Directors of the Company, at the Ordinary Shareholder‘s Meeting held on April 27, 2018, did not take office within the legal term, according to article 149, paragraph 1 of Law 6404/76.The respective position for which Mr. Márcio was elected will remain vacant.

The Company reiterates its commitment to keep its shareholders and the market in general informed, as well as to comply with applicable regulations and best corporate governance practices, in accordance with current legislation.

Rio de Janeiro, May 28, 2018.

Luís Fernando Paroli Santos

CEO, IRO & Chief Business Development Officer

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Light SA published this content on 28 May 2018 and is solely responsible for the information contained herein. Distributed by Public, unedited and unaltered, on 28 May 2018 23:57:01 UTC