4 月份以来，全国煤矿生产提速，但产能释放速度整体仍然不高，4月当月全国原煤产量完成29330万吨，同比增长4.1%。受来水较去年同期偏枯影响，火电发电量增长较快，电力企业耗煤增加，煤炭市场交易较为活跃。4 月当月全国原煤销量为 28900 万吨，同比增长 2.48%。

Mining automation refers to the automation of mining techniques, which involve the transition from manual labor to automated mining techniques. Mining automation involves extracting ores, minerals, or other resources using technology and information. The process is undertaken to ensure, better efficiency, productivity, safety, and reduction in operating cost at the mining site. It involves the removal of human labor from the mining process. Advancements in information technology, and automation assist in optimizing workflow. The report provides a detailed analysis of the market with reference to the techniques in mining automation, types in mining automation, and the applications.

磷矿是不可再生资源，在农业中有不可替代的作用。我国磷矿资源储量水平位居全球第二，但平均品位仅 17%，且以胶磷矿居多，采选难度较大。 2017 年我国磷矿石产量 1.48 亿吨，其中 95%以上来自鄂、黔、滇、川四省。全国磷矿石储量 32.4 亿吨，现有储量开采年限远低于世界平均水平，我国可开采磷资源或在几十年内耗尽。若国内磷矿资源枯竭，我国的农业生产的稳定性将无法得到保障。