nta v offer, page-5

I see these guys NOW decide to impair the unlisted iron ore asset, yet still the NTA is still 96c. Would be interesting to know how much they impaired it by. This takeover offer is far too 'cosy' for my liking. I would much prefer this to be at a % of NTA (e.g. 85-90%). Failing that, what about option B, namely selling on market all the listed stuff. I have not bothered to calculate it, but I wonder how close that would get us to 70c? whilst still retaining unlisted stuff?