what is the world's current REE demand and it's supply? how long...

what is the world's current REE demand and it's supply?
how long will it take before this one is producing.

please dont assume I am downramping this stock. I have been in many of the REE stocks but now only holding LYC as I see it as ( hopefully) being the first to production.
It seems like every second mining stock has announced the presence of REEs. Obviously only a few of these will ever get to production and only the first few into production will get the benefit of the current high REE prices