Ecovyst Inc. (NYSE: ECVT) (“Ecovyst” or the “Company”), a leading integrated and innovative global provider of specialty catalysts and services, today announced that Colleen Grace Donofrio has been appointed as its Vice President – Environment and Sustainability.

“I am excited to have Colleen join the team to lead our environmental and sustainability programs,” said Kurt Bitting, Chief Executive Officer of Ecovyst. “Colleen’s experience and enthusiasm will help further enhance Ecovyst’s award winning sustainability programs and bolster our efforts to develop service offerings that enable our customers to meet their sustainability goals.

Mrs. Donofrio most recently served as a shareholder in the environmental law practice of Pittsburgh, PA.-based Babst, Calland, Clements and Zomnir, P.C., where she served as outside environmental counsel to Ecovyst and its predecessors since 2005. She holds a bachelor of science in chemical engineering and a bachelor of arts in economics, each from Rutgers University, and a juris doctor from the Rutgers Camden Law School.

Mrs. Donofrio replaces Elaine T. Simpson, who has retired from the Company following a distinguished two-decade career with Ecovyst and its predecessors.

About Ecovyst Inc.

Ecovyst Inc. and subsidiaries is a leading integrated and innovative global provider of specialty catalysts and services. We support customers globally through our strategically located network of manufacturing facilities. We believe that our products, which are predominantly inorganic, and services contribute to improving the sustainability of the environment.

We have two uniquely positioned specialty businesses: Ecoservices provides sulfuric acid recycling to the North American refining industry for the production of alkylate and provides on-purpose virgin sulfuric acid for water treatment, mining, and industrial applications; and Catalyst Technologies provides finished silica catalysts and catalyst supports necessary to produce high strength and high stiffness plastics and, through its Zeolyst Joint Venture, supplies zeolites used for catalysts that help produce renewable fuels, remove nitrogen oxides from diesel engine emissions as well as sulfur from fuels during the refining process. For more information, see our website at https://www.ecovyst.com.

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