A Delaware Superior Court judge ruled Monday that former employees of The Chemours Co. may sue for severance payments they said they were denied after allegedly being duped into taking a less generous buyout deal as the chemical firm downsized following its spinoff from DuPont.

The ruling came as a win for a class of former Chemours employees who saw a similar case dismissed in a Delaware federal court. The same plaintiffs—led by Mark Girardot, Gerhard Wittreich and Peter Butler—later brought their claims to state court, where they accused Chemours, among other things, of fraud, unjust enrichment and a breach of the Delaware Wage Payment and Collection Act.