For example, the listed Western Mining is the only domestic listed enterprise with a self-sufficiency ratio of concentrate over 100%, which is of strategic importance to upgrade its stock valuation.

• 如上市公司西部矿业是国内唯一一家精矿自给率超过100%25的矿业上市企业，而这一点对其股票的估值的拉升起到了重要作用。