Graña y Montero S.A.A. announced the resignation of Ernesto Balarezo Valdez, Chairman of the Board, Rafael Venegas Vidaurre, Alfonso de Orbegoso Baraybar, Manuel Del Río Jiménez and Pedro Pablo Errazuriz Domínguez to the Company Board through a joint letter, and which will be effective the day prior to the next general shareholder meeting to be convened in the upcoming days.