AUZ announcement, page-393

4.6
Ending a voluntary suspension
ASX may end a voluntary suspension at any time. It will usually do so once the entity makes the announcement about the event it said would result in the lifting of the suspension, without the need for the entity to take any further action on its part.
Again, once the situation that led the entity to request a suspension has been resolved or clarified sufficiently for the entity to be able to make an announcement that informs the market about the relevant matters, the entity is expected to make such an announcement immediately.
If for any reason an entity is not in a position to make the announcement about the event it said would result in the lifting of the suspension within the time that it originally anticipated, the entity is expected to make an announcement to inform the market of the reasons for the delay, and the new date by which it expects the suspension to be able to be lifted.

Should have announced reasons for the delay as was due to trade from open today at latest. Wrap over the knuckles by ASX for this I would assume.