Last week, China informed Korean companies that make magnets, electronic components, and other products with rare earths from China not to export them to the US.
This week, Trump backs down after insisting that China make concessions first. LOL
Paper tiger.
Korea Economic Daily - China bans export of Korean goods containing its rare earth metals to US
Korea has been punished to the tune of several tens of billions of dollars for THAAD, which is mainly for US defense. It detects long-range high-altitude missiles.
The US did not defend Korea from China at the time or afterwards.
US news media is purposefully not reporting on China's banning of exports from Korea and other countries to the US.