Rare earth elements are used in almost every of advanced technology. Think about your smartphone: the colors on the screen, the tiny speaker, and strong vibration feature, all rely on these materials. are also vital for new green technologies, like powerful, lightweight magnets in electric car engines and massive wind turbines that generate clean energy.

For , China has been the undisputed leader in this . This dominance was not an accident. The Chinese invested heavily in the sector, and local companies able to produce these materials much more cheaply countries in North America or Europe. One reason the lower cost was that China initially had environmental regulations. This meant companies could focus on speed rather than expensive waste management.

Today, China most of the world's rare earth production, about % of the mining and nearly 90% of the complex refining. This gives China huge power over global supply chain. If China were to slow exports, it could quickly affect the production of , cars, and military equipment globally.

Because of this , many countries, including the United States, Japan, and , are now trying hard to build their own earth supply chains. They are investing in new and, more importantly, in developing new, cleaner refining . However, building the necessary factories and training the workforce take many years. Until the rest of world can fully control the refining process, China continue to hold a strategic position in the that power our future.