同德化工：子公司控股公司主要经营利用煤矿低浓度瓦斯发电项目

Group 1 - The core viewpoint of the article is that Tongde Chemical (002360) has successfully connected its subsidiary's clean energy project to the grid, marking a significant milestone in its operations [1] - The subsidiary, Yurebao Technology Co., Ltd., holds a controlling stake in Yangcheng Guotai Zhongke Clean Energy Co., Ltd., which focuses on generating electricity from low-concentration gas in coal mines [1] - The project has completed debugging and trial operation phases, leading to its official grid connection for power generation [1]