鼎信通讯：公司目前还处在国家电网有限公司和南方电网有限责任公司市场禁入期间

Core Viewpoint - The stock of Dingxin Communication has experienced an abnormal fluctuation, with a cumulative closing price increase of over 20% in three consecutive trading days, prompting the company to clarify that there have been no significant changes in its operations or undisclosed major matters [1] Company Overview - Dingxin Communication focuses on the research, development, production, and sales of power line carrier communication and smart grid equipment [1] - The core business revolves around "smart meter data transmission, power safety protection," and fire protection services [1] Market Status - The company is currently under a market ban period imposed by State Grid Corporation of China and China Southern Power Grid Co., Ltd [1] - Investors are advised to be cautious regarding investment risks during this period [1]