St Xinhai is a stock issued by Xinhaiyi Communication Technology Co., Ltd., which is located in Suzhou Industrial Park. Its main business is R&D, producing and selling wiring products, smart cable inflator systems, broadband access products and power products for communication rooms and communication networks. The company's communication equipment products have passed the production stereotypes appraisal of Jiangsu Communication Administration, and obtained the network access license of the Ministry of Information Industry, which is widely used in six major domestic telecom operators and national defense communication private networks, and gradually extended to radio, television and power supply systems.