I don't know what the $10m was based on (possibly nothing). Wellard was amongst the largest impacted by the ban.
The tax losses would need to survive the ownership and/or business continuity test which would definitely be the case if one or both of the top 2 shareholders take it private / buy back everyone else's shares. Heytesbury could put Swagman back into the company (was owned by, then leased to, WLD) for its earnings to be sheltered by WLD's tax losses for the rest of its useful life.
