The company reduces the mining cost by increasing the proportion between the amount of open-pit mining and that of underground mining, as well as raising undressed ore grade and recovery rate and reducing the tailings grade; they control dilution rate and loss rate to realize scientific, reasonable and sustainable exploitation and utilization of mineral resources; strictly rein the undressed ore particle size to reduce use cost of mechanical equipment; optimize the technological process and make technical renovation to reduce material consumption and eliminate leakage and loss; improve equipment operation rate at full capacity to avoid idling as far as possible, strengthen lubrication and maintenance of equipment to save water and electricity energy to the maximum limit; improve production technology index to keep an average daily processing ore quantity of 6,500 tpd, etc.