Spotlight on American Rare Earths, page-1812

China has announced new export controls on gallium and germanium, two important metals used in semiconductor, telecommunications, solar power, and electric vehicle industries.
https://www.tomshardware.com/news/china-retaliates-set-to-restrict-gallium-germanium-exports
These are not rare earths, but the story quotes someone who compares this to China's actions in that market:
"When they stop suppressing the price, it suddenly becomes more viable to extract these metals in the West, then China again has an own-goal," Christopher Ecclestone, principle at Hallgarten & Co., told Bloomberg. "For a short while they get a higher price, but then China’s market dominance gets lost - the same thing has happened before in other things like antimony, tungsten, and rare earths."