In our home town there are three largest Gold & copper smelting plants , require 300 millions gold&copper concentrates per year . I have 20 years bank work experience , i am good at international trade manage , trade settlement , trade financial , declaration and logistics management.I am engaging in importing minerals , Copper ore , gold ore , copper concentrates , gold concentrates，alumina powder，bauxite.I am providing Processing technology, mining technology, gold refining technology to small mines all over the world.I have interest in tailings , i can refining the tailings pollution free .