Graña y Montero S.A.A. (“Graña y Montero”, “G&M” or the “Company”), the largest engineering and construction company in Peru, announced the completion of the purchase of the totality of shares that Besco S.A. owns in Norvial S.A. at an agreed price of S/. 51’435,580.00. The shares are classified as “Class B shares” and represent the 16.9% in Norvial S.A. This increases the company’s stake in Norvial S.A. up to 67.0%. 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.