Ecovyst Prices of Secondary Offering

MALVERN, Pa.–(BUSINESS WIRE)–Ecovyst Inc. (NYSE: ECVT) today announced the pricing of the previously announced underwritten public offering by certain of its stockholders of 8,000,000 shares of its common stock at a price to the public of $9.50 per share. The offering is expected to close on November 23, 2021, subject to customary closing conditions. The Selling Stockholders have granted the underwriters a 30-day option to purchase up to 1,200,000 additional shares at the public offering price less underwriting discounts and commissions.

The Selling Stockholders will receive all of the net proceeds from this offering. No shares are being sold by the Company.

Citigroup, Deutsche Bank Securities and Credit Suisse are serving as the joint lead book-running managers of the offering. BMO Capital Markets, Morgan Stanley, Jefferies and KeyBanc Capital Markets are also serving as book-running managers of the offering. C.L. King & Associates are serving as a co-manager of the offering.

About Ecovyst

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 remove nitric oxide from diesel engine emissions as well as sulfur from fuels during the refining process.