Grañ ña y Monte ero S.A.A. signs the C Concessio on Contrac ct for the Via Expresa E Su ur Project Lima, August 8, 20 013.- Today, Graña y Montero S.A.A. (““Graña y Mon ntero” or the ““Company”), tthe recentlly listed engin neering and construction c Peruvian com mpany in the New York S Stock Exchang ge, signed the concession contract fo or the extension of the Via a Expresa Passeo de la Rep pública highw way (the “V Via Expresa Sur Project”) with w the Munic cipality of Lim a. The Via Expresa Project P will co onnect downttown Lima ccity and the P Panamericana Sur highwa ay, through h 4.5 Kms. in ncluding 5 brid dges, 2 connecting lines, 6 entrance ra amps and 5 e exit ramps. T The projectt will also hav ve auxiliary wa ays from north h to south. With an estimated investment off US$230 milllion, the consstruction will ttake 5 years, and will bene efit approx ximately 75,00 00 vehicles in n the city of Lima. Mario Alvarado, A Chief Executive Officer of Grraña y Monterro, commente ed: “As envisaged during tthe recent capital raisin ng process we w successfu ully executed in the New York Stock Exchange, V Via Expres sa Sur will be e one of the infrastructure e projects in w which we willl invest part o of the procee eds from th he offering.” About Graña y Montero S.A.A. Founde ed in 1933, Graña G y Mon ntero is the only o Peruvian n engineering g and constru uction compa any listed on the Lima Stock Exch hange since 1997 and no ow also the NYSE. The Company h has particip of major eng pated in the development d gineering and d construction n projects in Peru, including large-s scale, complex projects in the t energy, mining, m constrruction and re eal estate sectors. With 80 0 years of operations, the Company ha as leveraged iits engineerin ng and construction experttise into co omplementary y lines of business, b suc ch as the d development, ownership, operation a and mainte enance of inffrastructure assets, a real estate e develo opments, and d the provision of technical service es. The Comp pany has sign nificant investtments in infra astructure concessions, su uch as three toll roads and a Line 1 of the Lima Mettro. The Co ompany has also a executed d several projects outside Perú, and ha as acquired tw wo companiess in Chile: Vial y Vives, a construction company specialized iin the mining g sector, and CAM, which h is specialized in electrric services, with w operation ns in Chile, Pe eru and Colom mbia. Graña y Montero is listed in the t NYSE un nder ticker ssymbol “GRA AM” and in tthe Lima Sto ock Exchan nge under tick ker symbol “G GRAMONC1”. For mo ore informatio on about the Company C plea ase contact: Juan Jose Arrieta Corporrate Commun nications & Social Responsibility Officer (511) 213-6598 2 jarrieta [email protected] pe Dennis Gray F. Investorr Relations O fficer (511) 21 13-6583 dgray@ @gym.com.pe relacion n.inversionista [email protected] m.pe