Ann: Cellmid Signs COVID-19 Rapid Diagnostic Supply Agreement, page-21

It will be over a week elapsed before we recommence trading (Monday). The timing was -
20 Mar - Trading Halt
24 Mar - Trading Suspension
25 Mar - TGA Approval
27 Mar - Announcement (after market close)
30 Mar - Recommence trading
The voluntary suspension was sought "to allow the ASX to examine the substantial supporting material the company has provided to it as part of the due diligence in relation to a new supply agreement".
One wonders whether the delay was caused by the company or by the ASX.