In 2015,the global economy continued to remain in deep transition adjustment period,demand for major mining products is sluggish,meanwhile in combination with fluctuations in the financial market,“ore prices”fell steadily,mining situation continued to deteriorate.Under the New Normal,structural adjustment In 2015, the global economy continued to remain in deep transition adjustment period, demand for major mining products is sluggish, meanwhile in combination with fluctuations in the financial market, “ore prices ” fell steadily, mining situation continued to deteriorate .Under the New Normal, structural adjustment