Is Tianjin Tianzhong Jiangtian Heavy Industry Co., Ltd. a state-owned enterprise or a private enterprise? thank you

Tianjin Tianzhong Jiangtian Heavy Industry Co., Ltd. is a large-scale joint venture integrating metallurgy and heavy machinery, which is formed by the merger and reorganization of Tianjin Jiangtian Industrial Development Co., Ltd., Tianjin Xinhao Investment Development Co., Ltd. under Tianjin Electromechanical Industry Holding Group and China Hongkong Oriental Industrial Investment Co., Ltd.