Graña y Montero S.A.A. (“Graña y Montero” or “the Company”)(NYSE:GRAM)(BVL:GRAMONC1), the engineering and construction Peruvian company recently listed in the New York Stock Exchange, announced its subsidiary Vial y Vives S.A. received a “Letter of Adjudication” granted by the mining company Minera Los Pelambres, owned by Antofagasta Minerals Group. The awarding is for the execution of a contract of US$ 78 million for civil works and the assembly of a truck workshop with auxiliary buildings denominated “Pelambres (4ta region)” in a period of 18 months, starting on October 21, 2013. Minera Los Pelambres is located 45 Kms to the East of Salamanca City, Choapa Province, Region IV of Coquimbo, Chile, at 3.100 meters above sea level. About Graña y Montero S.A.A. Founded in 1933, Graña y Montero is the only Peruvian engineering and construction company listed on the Lima Stock Exchange since 1997 and now also the NYSE. The Company has participated in the development of major engineering and construction projects in Peru, including large-scale, complex projects in the energy, mining, construction and real estate sectors. With 80 years of operations, the Company has leveraged its engineering and construction expertise into complementary lines of business, such as the development, ownership, operation and maintenance of infrastructure assets, real estate developments, and the provision of technical services. The Company has significant investments in infrastructure concessions, such as three toll roads and Line 1 of the Lima Metro. The Company has also executed several projects outside Perú, and has acquired three companies in Chile: DSD Construcciones y Montajes, an engineering and construction company specialized in providing services to the energy, oil and gas, cellulose and mining sector in Chile and Latin America; Vial y Vives, a construction company specialized in the mining sector, and CAM, which is specialized in electric services, with operations in Chile, Peru and Colombia.