 LOS ANGELES--BUSINESS WIRE--- CVIA classaction--The Law Offices of Frank R. Cruz announces that a class action lawsuit has been filed on behalf of persons and entities that purchased or otherwise acquired Covia Holdings Corporation Covia or the Company fka Fairmount Santrol Holdings Inc. Fairmount Santrol OTC: CVIAQ NYSE: CVIA, FMSA securities between March 15, 2016 and June 29, 2020, inclusive the Class Period. Covia investors have until February 8, 2021 to file a lead plaintiff motion. If y 