Tungsten demand is real and bulk sources are quite scarce, today. It would be helpful if the historical charts went back farther than 2016. Where did the US get Tungsten in the 80s and 90s? South Korea, China, and Russia. The US and Canada had Tungsten mines, but the value wasn't there due to international pricing undercutting the industry. America's dogged federal agenda to break free of all Chinese influence or Capitalism, which will go first? We know the answer.