That's interesting because as you say, there was nothing in the...

That's interesting because as you say, there was nothing in the revised DFS (Nov 2017) about FeV economics or anything allocated for a BOOT downstream FeV plant.

I'm not sure if it's letting the cat out of the bag though, perhaps more of a case of subtly highlighting that we've now strategically gone full circle. 

Those that have been around far too long will remember that FeV was always part of the strategy, the whole Woojin BoA encompassed a FeV technology sharing agreement and a commitment to take or pay a minimum of 60% of TNG's "Vanadium products"

This old Hardman and Co. report is worth a read - (pages 3-6)

http://www.tngltd.com.au/images/tngltd---aeyeiciaho.pdf

Woojin BoA and technology sharing announcement

http://clients2.weblink.com.au/news/pdf_1%5C01659314.pdf

It's all clear as mud as usual.