Every day, we use products that are built using “rare earths”—a group of 17 elements that are, as the name suggests, very rare. They’re used to make everyday items such as rechargeable batteries, LED lights and display panels, as well as larger products such as wind turbines.
Now, it turns out, Japan has an estimated 16 million tons of the stuff on its turf. Researchers claim the trove might be enough to supply the world with metals such as yttrium and europium on a “semi-infinite basis.”
This is good news for Japan’s industrial sector. The world’s biggest source of rare earths is by far China, which has in the past halted exports to Japan when the two countries have been at odds.
The new stash of rare earths is located in deep-sea mud off the tiny island of Minamitori, some 1,150 miles southeast of Tokyo in the north Pacific. Getting at the resources will be an issue, given that they’re almost four miles underwater. However, after the research came out, shares in relevant companies soared.
“It is important to secure our own source of resources, given how China controls the prices,” said Yutaro Takaya, the Waseda University professor who led the study.