The article discusses the changes in the magnesia industry outside of China, including the impact of halted operations, environmental concerns, and rising coal prices on domestic prices. It also mentions the import of magnesia from North Korea into China in 2016. The process of crushing and sorting magnesia ore is described, along with the different grades produced. Only a small percentage of the magnesia deposit has been explored using specific drilling techniques. The company Korab has outlined the steps needed to start mining operations after a prefeasibility study in 2015.