MILLS ESTRUTURAS E SERVIÇOS DE ENGENHARIA S.A. CNPJ/MF n.° 27.093.558/0001-15 NIRE 33.3.0028974-7 A Publicly Held Company CONVENING NOTICE FOR THE ORDINARY SHAREHOLDERS’ MEETING The Board of Directors of MILLS ESTRUTURAS E SERVIÇOS DE ENGENHARIA S.A. (the “Company”) invites it shareholders to assemble at an Annual Shareholders’ Meeting to be held on April 26, 2013, at 11:00 a.m., at Avenida das Américas 500, bloco 14, loja 108, Barra da Tijuca, Shopping Downtown, in the City and State of Rio de Janeiro, to deliberate on the matters included in the agenda below. AGENDA 1. Take the accounts of the administrators, examine, discuss and vote on the Management Report and the Financial Statements for the fiscal year ended on December 31, 2012, as accompanied by the opinion of the independent auditors and the favorable opinion of the Fiscal Council; 2. Deliberate the proposed capital budget for 2013; 3. Deliberate the Administration’s proposal regarding the allocation of results for the year ended December 31, 2012; 4. Elect the members of the Fiscal Council; and 5. Establish the compensation of the Company’s administrators for the fiscal year 2013. GENERAL OBSERVATIONS: 1. In observance of Article 133 of the Brazilian Corporations Law and CVM Instruction 481/09, copies of the Management Report, the Financial Statements for the fiscal year ended December 31, 2012, accompanied by the opinion of the independent auditors and the favorable opinion of the Fiscal Council, which were published in the March 13, 2013 edition of the newspaper Valor Econômico and in the March 13, 2013 edition of the Diário Oficial do Estado do Rio de Janeiro, as well as the other documents and information required by CVM Instruction 481/09, are available to Shareholders at the Company’s headquarters and on its website (www.mills.com.br), on the BM&FBOVESPA website (www.bmfbovespa.com.br) and on the website of the Comissão de Valores Mobiliários (www.cvm.gov.br) 2. Subject to the provision in article 126 of the Brazilian Corporations Law, shareholders who shall be represented by proxy are requested to send to the Company’s headquarters, the mandate and documents that evidence the powers of the legal representative, preferentially 2 (two) business days prior to the Shareholders’ Meeting. 3. To participate in the Shareholders’ Meeting, shareholders must present an identity document and proof of ownership of the Company’s shares issued by the depositary financial institution. 4. We recommend that shareholders arrive 1 (one) hour early, for due registration and entry into the Shareholders’ Meeting. Rio de Janeiro, March 20, 2013. Andres Cristian Nacht Chairman of the Board of Directors