Graña y Montero S.A.A. (“Graña y Montero”, “G&M” or the “Company”), the largest engineering and construction company in Peru, announced that the Consortium Río Santa - Chavimochic, formed by Graña y Montero S.A.A, Odebrecht Participacoes e Investimentos S.A and Constructora Norberto Odebrecht S.A, has been awarded the concession for the maintenance and operation of the first, second and third phase of the Chavimochic project, as well as for the design and construction of the third phase of the hydraulic works. The works and irrigable lands of the Chavimochic project are located in La Libertad region, in the provinces of Viru, Trujillo and Ascope. This infrastructure project will incorporate 63,000 hectares for modern agriculture and will improve the irrigation of 47,000 hectares in northern Peru. The estimated investment will be of USD 700 million, and the concession period will be of 25 years. About Graña y Montero S.A.A. Graña y Montero (NYSE:GRAM, BVL: GRAMONC1) is the only Peruvian engineering and construction company listed on the Lima Stock Exchange and the New York Stock Exchange. 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. For further information, visit www.granaymontero.com.pe.