1, Datang Qingdao Port Co., Ltd.
2. Shandong Port Lianhua Pipeline Oil Transportation Co., Ltd..
3 Shandong Dong Qing Pipeline Co., Ltd. and Shandong Qing Zi Logistics Co., Ltd.
4. Qingdao Bonded Area Gangrong Storage Center Co., Ltd..
5. Qingdao Bonded Port Tongda Oil and Gas Co., Ltd..
Qingdao ocean shipping tally co., ltd.
7. Qingdao Ocean Shipping Maintenance Co., Ltd..
8. Qingdao Hongyu Freight Forwarding Co., Ltd.
9. Qingdao Li Yong Insurance Agency Co., Ltd.
10, Qingdao Haiyang Mokerui Storage Co., Ltd.
1 1, Qingdao Haiyang Mokerui Logistics Co., Ltd.
12, Qingdao Gangjia Logistics Co., Ltd.
13, Qingdao Qianwan Port Bonded Logistics Center Co., Ltd.
14 Qingdao Port International Development (Hong Kong) Co., Ltd.
15, Qingdao Port International Logistics Co., Ltd.
16, Qingdao Port Passenger Station Duty Free Sales Co., Ltd.
17, Qingdao Port Yizhihang Cold Chain Logistics Co., Ltd.
18, Qingdao port culture media co., ltd.
19, Qingdao port Schwiertz tugboat co., ltd.
20. Qingdao Port Property Management Co., Ltd.
2 1, Qingdao Port Technology Co., Ltd.
22. Qingdao Port Lianshun Shipping Co., Ltd..
23. Qingdao Port dongjiakou Liquid Chemical Terminal Co., Ltd..
24. Qingdao Port dongjiakou General Terminal Co., Ltd..
25. Qingdao Port Finance Company Limited
26. Qingdao Port Tongan Security Service Co., Ltd..
27. Qingdao Port Bao Tong Shipping Co., Ltd.
28. Qingdao Port Tongze Trading Co., Ltd..
29. Qingdao Port (Group) Port Engineering Co., Ltd.