NEW YORK & WICHITA, Kan. & MALVERN, Pa.–(BUSINESS WIRE)–Cerberus Capital Management, (together with its affiliates, “Cerberus”) and Koch Minerals & Trading, LLC (“Koch”) today announced that their partnership has completed the previously announced acquisition of the Performance Chemicals business from Ecovyst Inc., formerly PQ Group Holdings Inc. The standalone business will continue to operate under the PQ brand and retain its headquarters in Malvern, Pennsylvania. With the completion of