President Trump on Friday threatened to raise U.S. tariffs on China over its new restrictions on rare-earth elements.

"They are becoming very hostile, and sending letters to Countries throughout the World, that they want to impose Export Controls on each and every element of production having to do with Rare Earths, and virtually anything else they can think of, even if it's not manufactured in China," Mr. Trump wrote in a social media post on Truth Social.

Mr. Trump's threat follows a move by China this week to implement tighter restrictions on the country's exports of rare earths, critical minerals used to manufacture products including semiconductors, electric car batteries, jet engines and defense weapons.

China produces as much as 95% of the world's rare earth magnets, accord

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