MRV ENGENHARIA E PARTICIPAÇÕES S.A. CNPJ/MF nº 08.343.492/0001-20 NIRE 31.300.023.907 Publicly held Company MATERIAL FACT Belo Horizonte, June 25, 2013 — MRV Engenharia e Participações S.A. (BM&FBovespa: MRVE3 - ADR OTCQX: MRVNY) (“MRV”), in accordance with the terms of the Brazilian Securities Committee (“CVM”) Instruction - CVM No 358, of January 3rd, 2002, as altered, hereby, in continuity to the Material Fact released on May 19, 2013, with respect to the purchase of 36,945,672 common shares from LOG Commercial Properties e Participações S.A. (“LOG”) by its current shareholders and by FIP Multisetorial Plus (“FIP MPlus”), managed by Banco Bradesco BBI (“Bradesco BBI”) (“Operation”), the Operation was approved, without restrictions, by the Administrative Council of Economic Defense – CADE, as published in the Diário Oficial da União on this date. LOG also informs that all conditions precedent in the Investment Agreement were satisfied. Belo Horizonte, June 25, 2013 Mônica Freitas Guimarães Simão Chief Investor Relations Officer