MILLS ESTRUTURAS E SERVIÇOS DE ENGENHARIA S.A. CNPJ/MF No. 27.093.558/0001-15 NIRE 33.3.0028974-7 A PUBLICLY HELD COMPANY MINUTES OF THE MEETING OF THE BOARD OF DIRECTORS HELD ON SEPTEMBER 17, 2015 DATE, TIME AND PLACE: On September 17, 2015, at 15:00 p.m., at the head office of Mills Estruturas e Serviços de Engenharia S.A. ("Company"), located at Avenida das Américas 500, bloco 14, loja 108, salas 207 and 208, Barra da Tijuca, Shopping Downtown, in the city of Rio de Janeiro, State of Rio de Janeiro. CALL NOTICE AND ATTENDANCE: Call notice was waived in light of the attendance of all members of the Board of Directors, in accordance with Article 15, paragraph 2nd and 3rd of the By-laws of the Company, stating the compliance with the requirements set forth therein. CHAIR: Chairman: Mr. Andres Cristian Nacht; Secretary: Mr. Frederico Átila Silva Neves. AGENDA: (i) acknowledge the resignation of Mrs. Alessandra Eloy Gadelha, as Investor Relations Officer of the Company; (ii) approve the election of Mr. Frederico Átila Silva Neves, as the new Investor Relations Officer of the Company; and (iii) approve the election of Mr. Ricardo de Araújo Gusmão, as Officer without specific designation of the Company. RESOLUTIONS: After discussing the matters on the agenda, the Directors, by unanimous vote and without any reservations or restrictions: 1. Acknowledged the resignation of Mrs. Alessandra Eloy Gadelha, Brazilian, married, chemical engineer, bearer of ID card no. RG 06066958-7, issued by the IFP/RJ, registered with the CPF/MF under No. 021.092.597-36, resident and domiciled at Avenida Afrânio de Melo Franco 42, apto. 101, Leblon, in the city of Rio de Janeiro, State of Rio de Janeiro, to the position of Investor Relations Officer of the Company, to which she was elected in the meeting of the Board of Directors held on March 9, 2015, thanking her for the relevant services rendered. 1.1. Mrs. Alessandra Eloy Gadelha granted to the Company full, complete, plain, general, irreversible and irrevocable release, stating that she does not have anything to claim from the Company, its shareholders, subsidiaries, affiliated or successors for any purpose and at any time. 2. Thereafter, the members of the Board of Directors approved the election of Mr. Frederico Átila Silva Neves, Brazilian, married, engineer, bearer of ID card No. 811004822-D, issued by the CREA/RJ, registered with the CPF/MF under No. 595.166.407-10, resident and domiciled at Rua Cupertino Durão 21, apto. 302, in the city of Rio de Janeiro, State of Rio de Janeiro, for the position of Investor Relations Officer of the Company, together with his position of Administrative Financial Officer of the Company, to which he was elected in the meeting of the Board of Directors of the Company held on March 9, 2015. 3. Also, the members of the Board of Directors approved the election of Mr. Ricardo de Araújo Gusmão, Brazilian, divorced, engineer, bearer of ID card no. 73259301, issued by IFP/RJ, registered with the CPF/MF under No. 987.271.927-68, resident and domiciled at Alameda Suiça 70, Residencial Euroville, in the city of Carapicuíba, State of São Paulo, for the position of Officer without specific designation. The term of office of Mr. Ricardo de Araújo Gusmão shall coincide with the term of office of the Officers elected in the meeting of the Board of Directors of the Company held on March 9, 2015. 4. The Officers elected hereby will take office upon execution of the investiture instruments drawn up on the Book of Minutes of Executive Officers' Meetings, which will contain the statements required by law, in compliance with Articles 146 and 147 of Law No. 6,404, dated as of December 15, 1976, the second paragraph of Article 18 of the Bylaws of the Company, as well as the provisions of CVM Instruction No. 367, dated as of May 29, 2002, as amended. CLOSING AND SIGNATURES: There being nothing more to address, the Chairman closed the meeting; these minutes of the Meeting of the Board of Directors were drawn up and, after being read and approved, were signed in the book of minutes by all the members of the Board of Directors of the Company in attendance, the Chairman and the Secretary. Directors in attendance: Andres Cristian Nacht, Elio Demier, Francisca Kjellerup Nacht, Nicolas Arthur Jacques Wollak, Pedro Sampaio Malan and Jorge Marques de Toledo Camargo. Rio de Janeiro, September 17, 2015. I certify that these minutes are a truly copy of the minutes executed in the Company's proper books. _______________________________ Frederico Átila Silva Neves Secretary 2