https://www.lseg.com/sites/default/files/content/documents/aim-designated-markets.pdf
IF they take the designated market route then costs would be substantially less and dependent on market cap?
This is worth a read...
https://www.bakermckenzie.com/-/media/files/people/lustig-richard/australia_reportduallistings.pdf?la=en
Could be a complete waste of money and energy or it could be linked to financing requirements, as usual we'll probably only know after the fact.
It's always fait accompli with this mob.