Everybody is looking to Lithium name and to play it .
I you want to know more about Lithium have a look to this article from Jan 2017 but very well detailed.
I think Groupe Bollore could be a good alternative also as if there is a shortage of Lithium or Lithim start to be too expensive, industrials will look to alternative technology...Blue Solution is one
comapny were Ipo in 2013 @ 14.50 and bought back recently by Bollore a 18
Company was valued at 520mil euros
Blue Solution is very small in groupe Bollore Valuation (500mil vs 12bil mkt cap) but could be a decent catalyst fro growth ion the next few years.