Quick google search shows that China has its own Quartz mines, so I’m not sure if those are unsuitable for certain semiconductors or if the use of “world” here just means 
Quick google search shows that China has its own Quartz mines, so I’m not sure if those are unsuitable for certain semiconductors or if the use of “world” here just means
The facility is okay. The roads are gone. I think it’s behind used as a distribution and evac site currently.