自1982年起,全国二十七家大中型非金属矿企业实行了按矿石产量提取矿山部分的更新改造资金,即维持简单再生产资金的办法。鉴于近几年来矿石开采日趋向纵深发展、生产条件不断恶化、维简费用明显增加等原因,经财 Since 1982, 27 large and medium-sized non-metallic ore mining enterprises across the country have implemented the method of extracting and renovating the mining part of the mine, which is the method of maintaining simple reproduction funds. In view of the fact that in recent years, the ore mining day tends to develop in depth, the production conditions have been deteriorating, and the maintenance costs have increased noticeably.