in p>23, the China government implemented a quota system for rare earths, and in 25, the China government cancelled the export tax rebate for rare earths, thus reducing the number of export quota enterprises. In April 26, the Ministry of Land and Resources of China stopped issuing mining licenses for rare earth mines, and from November 1 of the same year, the China government imposed export tariffs on rare earth and ferrosilicon. Quota system, according to the export quota of 8% of the world's consumption, China is now stricter on rare earth exports. I hope it will help you.