通源环境：10月30日召开董事会会议

Group 1 - Tongyuan Environment (SH 688679) announced on October 30 that its fourth board meeting was held to review proposals regarding the revision and formulation of company management systems [1] - For the year 2024, the revenue composition of Tongyuan Environment is 100% from ecological protection and environmental governance [1] - As of the report, the market capitalization of Tongyuan Environment is 3.3 billion yuan [1] Group 2 - Multiple regions are experiencing "negative electricity prices," raising questions about why power plants are reluctant to shut down despite not making profits from selling electricity [2]