According to Tongling Nonferrous Metals, recently, Tongguan Mining Construction Company won the bid for the shaft excavation project of the Daping Phosphate Mine Project in Yongwen Town, Kaiyang County, Guizhou Times Mining Co., Ltd., a subsidiary of Ningde Times Group. The construction content of the project is two ultra-deep shaft excavation operations: the No. 1 main shaft has a net diameter of 6.3 meters and a depth of 1,500.7 meters; the No. 2 auxiliary shaft has a net diameter of 10.2 meters and a depth of 1552.8 meters.

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