Contractual dispute between Hongdao Sub-district Office of Chengyang District of Qingdao, the People's Government of Chengyang District of Qingdao, the Natural Resources Bureau of Chengyang District of Qingdao, Sichuan-based Hongda (Group) Co., Ltd, Qingdao-based Qianxi Hongda Sports Entertainment Co., Ltd and the Management Committee of Qingdao High-tech Industrial Development Zone