LIMA, Peru–(BUSINESS WIRE)–Graña y Montero S.A.A. (NYSE:GRAM) (BVL:GRAMONC1) (“the Company” or “Graña y Montero”), a leading Engineering and Construction company, announced that its subsidiary Morelco in Colombia was awarded two new contracts today with Ecopetrol, a Colombian national oil company. The first contract amounts to US $ 11.902 million for an air-cooling system at the Suria and Ocoa thermoelectric plants; while the second contract is for US $ 4.087 million granted for the refurbish