In short, we will stockpile tailings and at some future date...

In short, we will stockpile tailings and at some future date process the tailings and extract more lithium. There is so much going on in the tech side of cleaning up mine waste and increased mineral extraction right now. PWN is making moves in this space as are many other companies globally as part of the whole ESG thing. Best approach now is to run a simple pilot plant now and ship product then revisit the tailings with proven efficient technology down the track.
Either way this is great undervalued asset about to get seriously re rated. IMO