TC(SH:603421) Ge Long Hui A P P·2025-09-22 12:13Core Viewpoint - Dingxin Communication (603421.SH) focuses on the research, production, and sales of power line carrier communication and smart grid equipment, with core business areas including smart meter data transmission, power safety protection, and fire safety [1] Group 1: Business Overview - The company's core business has not undergone significant changes [1] - The company is currently under a market entry ban from State Grid Corporation of China and China Southern Power Grid Co., Ltd, which investors should be aware of [1] Group 2: Technology Collaboration - The company has signed an authorization agreement with Pingtouge, granting the company the usage rights of E801/E802/E803 technologies for independent chip development [1] - The authorized technology is exclusively for the development of MCU chips related to traditional power and safety products, specifically for smart meters and security products, with no connection to AI intelligent reasoning chips [1] - There are no other business collaborations between the company and Pingtouge beyond the mentioned technology authorization [1]