WAYNE, Pa., April 20, 2026 /PRNewswire/ -- Ecovyst Inc. (NYSE:ECVT), a leading provider of virgin sulfuric acid, sulfuric acid regeneration services and ex-situ catalyst activation services announced today that it will conduct a conference call and audio-only webcast on Tuesday, May 5, 2026 at 11:00 a.m. Eastern Time to review its first quarter 2026 financial results.

Investors may listen to the conference call live via telephone by dialing 1 (800) 245-3047 (domestic) or 1 (203) 518-9765 (international) and use the participant code ECVTQ126.

An audio-only live webcast of the conference call and presentation materials can be accessed at https://investor.ecovyst.com. A replay of the conference call/webcast will be made available at https://investor.ecovyst.com/events-presentations.

About Ecovyst Inc.

Ecovyst Inc. and subsidiaries is a leading integrated provider of virgin sulfuric acid, sulfuric acid regeneration services and ex-situ catalyst activation services. We support our customers through our strategically located network of manufacturing facilities. We believe that our products and services contribute to improving the sustainability of the environment.

Our Ecoservices business provides sulfuric acid recycling to the North American refining industry for the production of alkylate and also provides high quality and high strength virgin sulfuric acid for industrial and mining applications. Ecoservices also provides chemical waste handling and treatment services, as well as ex-situ catalyst activation services for the refining and petrochemical industry.

For more information, see our website at https://www.ecovyst.com.

Investor Contact:

Gene Shiels

(484) 617 1225

gene.shiels@ecovyst.com

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SOURCE Ecovyst Inc.

Ecovyst to Host First Quarter 2026 Earnings Conference Call and Webcast on Tuesday, May 5, 2026 at 11:00 a.m. ET