According to data from the United States Geological Survey, the global rare earth reserves in 2022 will be about 125 million tons, of which China's reserves are 44 million tons, accounting for about 35% of the world. In addition, Vietnam, Russia, and Brazil have the highest rare earth reserves at 22 million tons, 21 million tons and 21 million tons respectively. The above four countries account for 87% of the global rare earth reserves....