鼎信通讯：范建华减持公司股份200万股，减持计划实施完毕

Group 1 - The core point of the article is that Dingxin Communications has completed a share reduction plan by its director, Mr. Fan Jianhua, who has sold a total of 2 million shares through centralized bidding, with the plan set to conclude by December 8, 2025 [1] - As of the report, Dingxin Communications has a market capitalization of 5.2 billion yuan [1] - The revenue composition for Dingxin Communications in 2024 is as follows: Power electronics accounts for 77.21%, fire electronics for 15.81%, other businesses for 4.54%, and labor services for 2.44% [1]