China placed export restrictions on key rare earth elements on Friday as part of its sweeping response to President Donald Trump’s tariffs, potentially squeezing supply to the U.S. and the West of minerals vital to everything from defense to electric cars.
China produces around 90% of the world’s refined rare earths, a group of 17 elements used across the defense, electric vehicle, clean energy and electronics industries. The United States imports most of its rare earths, and most come from China.