The Jilin Hunchun Zijin Shuguang Gold and Copper Mine used to be a state-owned enterprise on the verge of bankruptcy. In 2003, Zijin Mining took it over through a local investment opportunity and applied the “Five-in-One” mining model, which increased its minable gold and copper resources fortyfold and achieved high returns from low-grade mineral resources. Today, this national high-tech company has a capacity of 25,000 t per day.