Group 1 - Guangzhou ZuanTi Electronic Technology Co., Ltd. has been established with a registered capital of 500,000 RMB [1] - The legal representative of the company is Huang Huageng [1] - The company's business scope includes sales of optoelectronic devices, IoT devices, smart vehicle-mounted equipment, and various other electronic products and services [1] Group 2 - The company is involved in technology consulting services, terminal testing equipment sales, and mobile communication device sales [1] - It also engages in the sale of home appliances, security equipment, and digital video monitoring systems [1] - The company has a diverse range of activities including import and export, domestic trade agency, and network technology services [1]