华阳股份：目前于家庄煤矿正在按计划推进精勘工作

Group 1 - The core viewpoint of the article is that Huayang Co., Ltd. is progressing with the detailed exploration work at the Yujiazhuang coal mine as planned [2] Group 2 - The company has responded to investor inquiries on its interactive platform regarding the status of the Yujiazhuang coal mine [2]