 HOUSTON--BUSINESS WIRE--Orion Engineered Carbons NYSE: OEC, a leading global supplier of specialty and high-performance carbon black, announced today that effective September 15, 2021, or as permitted by customer contracts, the company is increasing prices on all carbon black products produced in North America. Due to higher operating costs related to recently installed emissions control systems and associated capital investments required to maintain service levels, it is necessary to adjus 