Ann: Half Yearly Report and Accounts, page-193

Well I see Morningstar have a valuation dated 3/3/18 which value the shares @ $4-12. (Price at close 2/3 was $2-81) So perhaps it is just a rerate after a lot of uncertainty and as per normal has gone too far.
Interestingly analysts seem reluctant to put their name to the Morningstar report instead noting a person responsible for overseeing the methodolgy.
Not easy to understand how Morningstar came to this valuation and many red flags are still noted.
But anyway, there you go..........