Here's another few thoughts.
at the half year MCX made a profit of around $540k. with these 4 sales the profit for the full year should be at least $1.4m.
this means MCX is trading at under 2x NPAT.
it also means MCX may be able to recognise some of its its tax losses as an asset (total is about $50m).
MCX could also pay a dividend (not likely, but possible).
Doesn't look like much risk at 30c.