 CLEVELAND, March 15, 2021 GLOBE NEWSWIRE -- Sotera Health Company the Company today announced the launch of a secondary offering the Offering of 25,000,000 shares of its common stock, par value 0.01 per share. All 25,000,000 shares are being offered by selling stockholders, which include certain affiliates of Warburg Pincus LLC and GTCR, LLC, as well as certain current and former members of management of the Company. In addition, the selling stockholders have granted the underwriters a 30-day option to purchase up to an additional 3,750,000 shares of common stock. The Company is not offering any shares in the Offering and will not receive any of the proceeds from the Offering. The Company has agreed to pay certain Offering expenses consistent with its obligations under its Amended and Restated Registration Rights Agreement. 