A Delaware Chancery Court judge has denied DuPont’s request to appeal an earlier decision that ordered the unsealing of a lawsuit filed by chemical manufacturer The Chemours Co. over its spinoff from the Delaware chemical giant in 2015.

The ruling, issued late last week by Vice Chancellor Sam Glasscock III, could clear the way for Chemours’ 65-page complaint against DuPont to be made public. Until now, the filing has remained almost completely redacted, though supplemental filings indicate that the suit seeks “substantial relief relating to a spin-off transaction.”