我国小有色金属矿山几乎都是地方矿山,且多隶属于贫困山区的市县。这些矿山如能利用资源优势,提高经济效益,无疑能对地方经济的振兴作出贡献。影响矿山经济效益的主要因素是入选矿石品位、矿产品价格和生产成本。尽管近年来材料大幅度涨价,但对矿产品的生产成本都影响不大。矿产品价格的变化当然也影响着矿山的经济效益。如近二年有色金属的 Almost all of our country’s small non-ferrous metal mines are local mines, and are mostly under the jurisdiction of cities and counties in poor mountainous areas. If these mines can take advantage of their resources and increase their economic benefits, they will undoubtedly contribute to the rejuvenation of the local economy. The main factors affecting the economic efficiency of mines are the grade of selected ore, the price of mineral products and the production cost. Despite the substantial price increases in recent years, the production costs of mineral products have little effect. Of course, changes in the prices of mineral products also affect the economic benefits of mines. Such as the past two years, non-ferrous metals