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China Just Turned Off U.S. Supplies Of Minerals Critical For Defense & Cleantech
(cleantechnica.com)
This is a most excellent place for technology news and articles.
Europe also tries their best to improve the situations in the other mines (some are so awful they're basically off-limit for western companies because of child slavery and such stuff) and find new patches for example in Scandinavia or middle- and south America which could then be extracted with the respective countries.
Brussel does a lot of bullshit, sometimes phenomenally so (in the end it's just politics as well), but in this case they really seem to try.