Scone:
I have tried to do a lot of research into tellurium and the other company that I am aware of that has stated they have found Tellurium is Mexivada, listed on the venture exchange.
I am not sure which is the best rare earth mineral company, Quest is certainly one of the newer companies in this game but they do have what looks like a good deposit.
I anticipate there will some consolidation within these companies.
Tellurium is usually found with gold and copper and is a byproduct of the smelting process I believe.
Kim