润建股份：12月12日召开董事会会议

Group 1 - The core point of the article is that Runjian Co., Ltd. announced the convening of its 28th meeting of the fifth board of directors on December 12, 2025, to discuss the proposal for appointing an accounting firm [1] - For the first half of 2025, Runjian's revenue composition shows that the pipeline maintenance business accounted for 99.93%, while other businesses made up only 0.07% [1] - As of the report date, Runjian's market capitalization is 11.4 billion yuan [1]