金瑞矿业：目前，公司拟建30万吨/年天青石精选项目前期工作正在进行中

Group 1 - The company is in the process of developing the Dafu Mountain strontium mine, which is one of the largest strontium mines in China [2] - The company plans to establish a 300,000 tons per year selection project for celestite, and preliminary work is currently underway [2]