Construction Corporation Number 1 (CC1) is the main contractor for project, with over 30 years experience, CC1 has received many awards for "golden cup high-quality building", has conducted many large projects such as Thu Thiem bridge, Nguyen Huu Canh tunnel, Diamond Plaza Building, E-town, New World Hotel, Sheraton Hotel ... CC1 will certainly bring the future residents of Green Hills the completed trust on the quality of apartments.