‘The risks involved in relying so significantly on a single source (Of Nd) for such a valuable commodity were illustrated during a trade dispute between China and Japan in 2010. The price per metric ton jumped from $50,000 in 2010 to $250,000 in 2011, Klinger said‘.
https://www.cnbc.com/2018/10/18/neodymium-china-controls-rare-earth-used-in-phones-electric-cars.html
Did the price really jump this high? Wow