Ann: Suspension from Official Quotation, page-13

"However, should the Directors not be successful in raising sufficient additional funding prior to 30 September 2018,
there is a material uncertainty whether the Group will be able to continue as a going concern and therefore whether it​

will be able to realise its assets and extinguish its liabilities in the normal course of business."

The above comes from the recent announcement and most likely is the reason for the ASX suspending trading. Good luck all. I lost a few bob on CAS earlier in the year so I can sympathise with holders here.