And what will be the NPV if Lindi DOES produce basket prices 15%...

And what will be the NPV if Lindi DOES produce basket prices 15% ABOVE the DFS prices?

A pessimistic view is the basket prices will be 15% under, the optimistic view is that they will be 15% over.

Until commissioning is finished and the plant proves what can be produced - everything is just a prediction and not fact.

Downies claim Lindi will do a SYR and fail to deliver flake size. It is a risk and from what I've heard the big money players are not getting onboard until that risk is unproven. End of year SP is going to be very interesting.
Holders believe that management have learnt from SYR and have designed the plant for quality flake retention and not pure volume of material. I expect once the plant has proven the flake retention it can produce - there will be more sales made to grow into the full capacity of the plant.

Proof will be in the production numbers generated in Q2 this year - because WKT are building a plant......