Details of the Welsh contracting giant’s demise have been confirmed in an administrators report from Grant Thornton.
Trade creditors are owed £40.4m with former employees owed £5m and HMRC £3.1m.
Grant Thornton said “it is highly unlikely there will be sufficient funds to enable a distribution to unsecured creditors.”
The accountant was first called in by Dawnus in December 2017 as it ran into cash slow problems which were eased by a £7m funding injection from HSBC and the Welsh Government in March 2018.
But worsening trading conditions saw Dawnus seek a buyer by December 2018 with 52 potential trade buyers and 23 distressed investors approached.
But only a single offer came forward which was subsequently withdrawn following due diligence and the company went into administration in March.