 HOUSTON--BUSINESS WIRE--Orion Engineered Carbons S.A. NYSE: OEC, a leading global supplier of specialty and high-performance carbon black, today announced its agreement with Evonik to settle the arbitration proceedings which Orion Germany had commenced against an Evonik Industries AG affiliate in June 2019. The arbitration was launched by Orion to enforce - among others - indemnity claims covering capital expenditures and costs to remedy past violations of the U.S. Clean Air Act alleged b 