WAYNE, Pa., Oct. 22, 2026 /PRNewswire/ -- Ecovyst Inc. (NYSE: ECVT), a leading provider of sulfuric acid regeneration, virgin sulfuric acid and sulfur dioxide and related derivatives, announced today that it will conduct a conference call and audio-only webcast on Thursday, November 5, 2026 at 11:00 a.m. Eastern Time to review its third quarter 2026 financial results.

Investors may listen to the conference call live via telephone by dialing 1 (833) 461-5787 (USA Toll-Free) or 1 (585) 542-9983 (International Toll) using the Meeting ID: 34433271

An audio-only live webcast of the conference call and presentation materials can be accessed through the link available 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 provider of sulfuric acid regeneration, virgin sulfuric acid and sulfur dioxide and related derivatives essential to our customer's operations and processes.

Our family of virgin sulfuric acid products, sulfuric acid regeneration services and related derivatives serve a wide range of industrial applications. We are a leading provider of sulfuric acid recycling to the North American refining industry for the production of alkylate, an essential gasoline component for lowering vapor pressure and increasing octane to meet stringent gasoline specifications and fuel efficiency standards. We are a leading North American producer of high quality and high strength virgin sulfuric acid for industrial and mining applications. Through our Calabrian business, we are also a leading producer of sulfur dioxide and related derivatives in North America, serving key end uses including mining, water treatment and specialty chemical production. We also provide 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
Senior Director of Investor Relations
(484) 617 1225
gene.shiels@ecovyst.com

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SOURCE Ecovyst Inc.