Group 1 - Shanghai Dangyi Zhikong Technology Co., Ltd. has been established with a registered capital of 1 million RMB [1] - The legal representative of the company is Hou Honghua [1] - The business scope includes technology services, development, consulting, and various manufacturing activities related to electronic and communication devices [1] Group 2 - The company is involved in the manufacturing of computer hardware and software, display devices, mobile terminal equipment, and power electronic components [1] - It also engages in domestic trade agency, information consulting services, and industrial control computer systems sales [1] - The company offers IoT technology services and industrial internet data services, along with software outsourcing services [1]