Usiminas Belo Horizonte Rua Prof. José Vieira de Mendonça, 3011 31310-260 Belo Horizonte MG

T 55 31 3499-8000

F 55 31 3499-8899

www.usiminas.com

USINAS SIDERÚRGICAS DE MINAS GERAIS S.A. - USIMINAS

Public Company CNPJ/MF 60.894.730/0001-05

NIRE 313.000.1360-0

MATERIAL FACT

Usinas Siderúrgicas de Minas Gerais S.A. - USIMINAS ("Usiminas" or the "Company") hereby announces that it has obtained a waiver from the Brazilian private banks and the Brazilian Economic and Social Development Bank (Banco Nacional de Desenvolvimento Econômico e Social) (collectively referred to as the "Brazilian Banks" in the Material Fact press releases of September 9 and 12, 2016), pursuant to which Usiminas is exempted from its obligation to carry out an exchange offer for the notes due in 2018 issued by its subsidiary Usiminas Commercial Ltd. (the "Exchange Offer"), effective immediately, but which effectiveness will be terminated in the event that Usiminas fails to obtain a similar, permanent waiver from the Japanese Banks and the Debenture Holders (in each case, as defined in the Material Fact press releases of September 9 and 12, 2016).

The Japanese Banks and the Debenture Holders, in turn, have granted an extension of the deadline for Usiminas to carry out the Exchange Offer until August 31, 2017, in order to allow for their review of a permanent waiver of the obligation to carry out the Exchange Offer.

Belo Horizonte, June 30, 2017.

Ronald Seckelmann

Vice-President of Finance and Investor Relations

USIMINAS - Usinas Siderúrgicas de Minas Gerais SA published this content on 30 June 2017 and is solely responsible for the information contained herein.
Distributed by Public, unedited and unaltered, on 17 July 2017 09:07:16 UTC.

Original documenthttp://v4-usiminas.infoinvest.com.br//enu/5510/2017.06.30 Material Fact Bonds.pdf

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