In February, Rio Tinto said it would spend a further $20 million...

In February, Rio Tinto said it would spend a further $20 million on studies to examine the Jadar deposit in Serbia, where it had invested $70 million to-date and which Rio Tinto estimates could account for up to 20% of annual global lithium supplies if mined.

Rio Tinto lithium resource in Serbia (125.3 Mt grading 1.8% Li2O) surpasses the one owned by Pilbara Minerals Ltd. at Pilgangoora (80.2 Mt grading 1.26% Li2O).

^{- http://www.marketwatch.com/story/rio-tinto-excited-by-serbian-lithium-project-2016-06-01}

What is your take on the Rio Tinto lithium project in Serbia?

I reckon that any virtual lithium company that is not able to place their product on the market by 2018, will have a hard time hoping for favorable market conditions that are needed to rise capital from the stock market in order to further fuel their development. Rio Tinto if seeing the lithium trade profitable may develope their deposit without stock market financing issues, thus squeezing those juniors out which only selling point is having a formidable DFS.