大中矿业：目前公司四川及湖南项目所使用的盾构机均正常作业

Group 1 - The company has confirmed that its shield tunneling machines are operating normally in its projects located in Sichuan and Hunan, despite the onset of winter conditions [2] - The use of shield tunneling machines is effective in mitigating the impact of high altitude and complex weather on construction projects [2] - The company advises that specific information regarding the completion timeline should be referred to through official company announcements [2]