Non-ferrous metals can be seen everywhere in production and life, and all kinds of construction and manufacturing are inseparable from them. They are also important strategic materials, and all kinds of weapons, ammunition and equipment must use them. Personally, I think that the tension in international form will lead to countries stepping up the reserve of strategic materials. The first thing to reserve is grain and non-ferrous metals, which will also lead to the rise of non-ferrous metals. The economic crisis is the most important factor that causes international tension. That is to say, if the world economic crisis worsens, the international situation will become more and more tense, the possibility of war will be greater, the non-ferrous metals will become more and more expensive, and the stocks related to non-ferrous metals will explode. On the contrary, this inference can also be established.