Keeping pace with the construction of Hainan Tourism Island and taking the ecological leisure, the green and low carbon as well as the cultural health care as its development objectives, COAG makes the real estate development by reliance of its exquisite management experiences and its perfect service modes so as to create a dreamy homeland for each customer. By integration of the rich local culture with the unique tropical environment of Hainan, Yuhai Wanquan River Project is the largest tropical plant ecological residential community in Qionghai. By taking such measures as selection of mateirals and improvement of construction techniques etc., Guoji Zhongyang Mansion highlights the concept of energy conservation and environment protection.