1, Gansu Zhongbang Engineering Cost Consulting Co., Ltd., located at No.3 Yanjing Business Building, Lanzhou.
2. Gansu Metropolitan Construction Labor Service Co., Ltd., located at No.2705, Yanjing Business Building, Lanzhou.
3. Luneng Group Co., Ltd. Gansu Branch, located at No.396, Yanjing Business Building, Lanzhou.