The GMB Scotland union is fighting for redundancy pay for workers laid off when Mortons Rolls went under, after their claims were refused.
All 230 staff were told they were losing their jobs when the Glasgow company collapsed in March, but the Redundancy Payment Service has now ruled the firm was still solvent when taken over.
It stated that as the jobs were transferred to new owners Phoenix Volt before Mortons collapsed, under TUPE employment regulations, those staff retain the same terms, conditions and rights.