What are the shareholding companies of Yunnan Airport Group?

Yunnan Airport Group has 22 holding companies:

Yunnan Kunpeng Aviation Service Co., Ltd., kunming changshui international airport Co., Ltd., Yunnan Tengchong Hump Airport Development and Management Co., Ltd., Yunnan Airport Construction Engineering Co., Ltd., Yunnan Airport Real Estate Development and Management Co., Ltd., Yunnan Tengchong Airport Sightseeing Hotel Co., Ltd., Yunnan Tengchong Volcanic Rehai Tourist Area Development and Management Co., Ltd., Kunming Airport Aviation Ground Service Co., Ltd., Yunnan Airport Best Business Co., Ltd., Yunnan Airport Network Co., Ltd. Yunnan Airport Logistics Co., Ltd., Yunnan Airport Travel Agency Co., Ltd., Yunnan Lincang Tourist Hotel Co., Ltd., Yunnan Civil Aviation Telecommunication Service Co., Ltd., Yunnan Airport Aircraft Maintenance Service Co., Ltd., Yunnan Airport Insurance Agency Co., Ltd., Yunnan Civil Aviation Trading Co., Ltd., Yunnan Civil Aviation Science and Technology Development Co., Ltd.

8 joint-stock enterprises:

Yunnan Airlines Diqing Tourist Hotel Co., Ltd., Yunnan Airlines Lijiang Tourist Hotel Co., Ltd., Yunnan Airlines xishuangbanna tourism Hotel Co., Ltd., Yunnan Airport Information Media Co., Ltd., Yunnan Aviation Real Estate Development and Management Co., Ltd., Bank of Communications Co., Ltd., Yunnan Airport Trading Co., Ltd. and Yunnan Civil Aviation Industry Development Service Co., Ltd.