China’s rare earths occupy several of the world’s largest reserves: China’s reserves account for the world’s total reserves, especially the relatively heavy and rare earth heavy rare earths in the military sector; China’s rare earth production accounted for the world's 96 in 2005. %; Export volume is the first in the world, 60% of China's output is for export, exports account for more than 63% of international trade, and China is the only country in the world that supplies rare earth products of different grades and varieties. It can be said that China is opening its doors to the world at all costs. According to the report of the National Development and Reform Commission, China's rare earth smelting and separation annual production capacity is 200,000 tons, which is more than double the world's annual demand. And China’s generosity has created greed in some countries. Japan and South Korea, which started out as a manufacturing and electronics industry, have a shortage of their own resources, and their reliance on rare earths is self-evident. Nearly 70% of China’s exports go to these two countries. As for the United States, which has the world’s second largest reserves of rare earths, it has sealed up the largest rare earth mine in the country, the Mountain Pass Mine, and the production of molybdenum has also been stopped. Instead, it imports a lot from China every year. The reserves of Western European countries are not many, they even more cherish their own rare earth resources, but also an important user of our rare earth.