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将具有采矿权的矿山划分为建设矿山、生产矿山和残采矿山3种矿山类型。建设矿山矿权评估主要是可采储量的评估和投资核算;生产矿山矿权评估需要对剩余可采储量进行核实,对井巷建设和地面建设投资进行折旧核算;残采矿山评估需要进行储量核销、剩余可采储量核查、新资源类型的估算,井巷建设的核销、折旧,地面建设的核销、折旧等。其中残采矿山具有潜在的投资价值,包括残留具有经济价值的难采难选矿,残采矿山所处有利的成矿带具有区域找矿潜力,并且可以充分利用周遍中小矿山资源,具有较大的投资潜力。境外投资存在汇率风险、储量风险、安全风险和成本风险,需要进行认真论证分析和技术评价。
Divide the mines with the mining right into three types of mines for the construction of mines, production mines and residual mines. The construction of mine mineral rights assessment is mainly the assessment of recoverable reserves and investment accounting; production of mining and mineral rights assessment needs to verify the remaining recoverable reserves, depreciation of the investment in roadway construction and ground construction; residual mining evaluation requires reserves Sales, verification of remaining recoverable reserves, estimation of new resource types, write-off of well construction, depreciation, write-off of ground construction and depreciation. Among them, the residual mining has potential investment value, including the residual economically valuable refractory and non-beneficiation. The favorable metallogenic belt where the residual mining is located has potential for prospecting in the region and can make full use of small and medium-sized mining resources around the centuries, Investment potential. There are exchange rate risk, reserve risk, security risk and cost risk in overseas investment, which need serious argument analysis and technical evaluation.