开磷集团马路坪矿段延深工程是该集团延深开采接替项目。在此工程中担任开拓、供矿任务的马路坪矿北—采区,自1996年一期延深工程一次预验收成功以来,已开采出品位在34%以上的优质矿200余万ｔ;同时,安全工程保持着“Ｏ”字目标。2000年,该采区承担的采矿试验成果推广和引进大型 The Kaishang Group Maluping Mine Extension Project is the group’s extension mining succession project. In this project, the north-mine area of ​​Maluping Mine, which is responsible for exploiting and supplying minerals, has successfully extracted more than 2 million tons of quality mines with a grade of over 34% since the successful acceptance of the first-stage extension project in 1996. Safety engineering maintains the “O” target. In 2000, the mining area was responsible for the promotion of mining test results and the introduction of large scale