Or you get a letter from a receiver saying that the shares are worthless - or similar. Usually such a letter is general, ie, as listed in ASX Announcements. This can sometimes take years.
Week 46 Wrap: Copper hits 2mth low as Trump threatens net zero pace; US rally fades; HotCopper’s picks
AN1 CuFe sells its Crossroads gold royalty to Northern Star for $4M cash; says better than waiting for mine launch