https://www.ato.gov.au/General/Capital-gains-tax/Shares,-units-and-similar-investments/Investments-in-a-company-in-liquidation-or-administration/
"You may be able to realise a capital loss on worthless shares before a company is dissolved if a liquidator or administrator declares in writing that there is no likelihood you will receive any further distribution in the course of winding up a company"
So I'm taking it as a full capital loss this year.
IMO, Korda declared the shares worthless