In December 2017 Fairmount Santrol, an Ohio-based sand producer that sells frac sand to drillers in the Utica and Marcellus Shale, announced it would sell itself to another sand company–Unimin, a subsidiary of Belgium-based SCR-Sibelco–for $170 million and 35% ownership in the newly combined company (see OH Sand Producer Fairmount Santrol Merging w/Unimin in $170M Deal). The newly merged company was later renamed Covia. Earlier this week Covia filed for Chapter 11 bankruptcy.