3 Comprehensive end-to-end services offered (1) Based on revenue for the year ended December 31, 2023. • Nordion supplies high-specific activity (HSA) Cobalt-60 to use in Gamma Knife® radiosurgery for the precision treatment of brain cancer Adjusted EPS(1) $0.00 to $0.13 Business & Market Update Financial Performance • Top- and bottom-line growth compared to Q1 2023 • Completed annual customer satisfaction survey and received continued strong results • NESHAP regulations finalized in March 2024 7 2023 2024 ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-39729 SOTERA HEALTH COMPANY (Exact name of registrant as specified in its charter) If an emerging growth compa ...

Exhibit 99.1 Sterigenics For first-quarter 2024, net revenues were $166 million, an increase of 4.1% compared to the first quarter a year ago. Segment income was $86 million, an increase of 3.6%. Net revenue growth for first-quarter 2024 was driven by favorable pricing and changes in foreign currency exchange rates, partially offset by unfavorable volume and mix. Sotera Health Reports First-Quarter 2024 Results CLEVELAND, OH, May 2, 2024 – Sotera Health Company ("Sotera Health" or the "Company") (Nasdaq: SH ...

Sotera Health Company (NASDAQ:SHC) Q4 2023 Earnings Conference Call February 27, 2024 9:00 AM ET Company Participants Jason Peterson - Vice President and Treasurer Michael Petras - Chairman and CEO Jon Lyons - Chief Financial Officer Conference Call Participants Sean Dodge - RBC Capital Dave Windley - Jefferies Luke Sergott - Barclays Brett Fishbin - KeyBanc Casey Woodring - JPMorgan Patrick Donnelly - Citi Michael Polark - Wolfe Research Operator Good morning and welcome to the Sotera Health Fourth Quarter ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 001-39729 SOTERA HEALTH COMPANY (Exact name of registrant as specified in its charter) Delaware 47-3531161 (State or other jurisdiction of incorporation ...

Sotera Health Company (NASDAQ:SHC) Q3 2023 Earnings Conference Call November 1, 2023 9:00 AM ET Corporate Participants Jason Peterson - Vice President and Treasurer Michael Petras - Chairman and Chief Executive Officer Jonathan Lyons - Senior Vice President and Chief Financial Officer Conference Call Participants Sean Dodge - RBC Capital Markets Patrick Donnelly - Citi Michael Polark - Wolfe Research Casey Woodring - JPMorgan Operator Good morning and welcome to the Sotera Health Third Quarter 2023 Conferen ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company ...

Sotera Health Company (NASDAQ:SHC) Q2 2023 Earnings Conference Call August 3, 2023 9:00 AM ET Corporate Participants Jason Peterson - Vice President and Treasurer Michael Petras - Chairman and Chief Executive Officer Jonathan Lyons - Chief Financial Officer Conference Call Participants Sean Dodge - RBC Capital David Windley - Jefferies Luke Sergott - Barclays Casey Woodring - JPMorgan Matthew Mishan - KeyBanc Michael Polark - Wolfe Research Operator Good morning, and welcome to the Sotera Health Second Quar ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-39729 SOTERA HEALTH COMPANY (Exact name of registrant as specified in its charter) | Delaware | | 47-3531161 | ...

Sotera Health Company (NASDAQ:SHC) Q1 2023 Earnings Conference Call May 3, 2023 8:30 AM ET Company Participants Jason Peterson - Vice President and Treasurer Michael Petras - Chairman and Chief Executive Officer Michael Biehl - Interim Chief Financial Officer Conference Call Participants Elizabeth Speyer - Citi Michael Polark - Wolfe Research Sean Dodge - RBC Capital Markets Luke Sergott - Barclays David Windley - Jefferies Casey Woodring - J.P. Morgan Matthew Mishan - KeyBanc Capital Markets Operator Good ...