Exhibit 99.1
List of Reporting Owners and Signature Page
Name of designated filer: Warburg Pincus & Co.
Other joint filers: Warburg Pincus Private Equity XI-C, L.P., Warburg Pincus (Cayman) XI, L.P., Warburg Pincus XI-C, LLC, Warburg Pincus Partners II (Cayman), L.P., Warburg Pincus (Bermuda) Private Equity GP Ltd., Warburg Pincus LLC, Warburg Pincus Partners GP LLC.
Address for each joint filer is: c/o Warburg Pincus & Co., 450 Lexington Avenue, New York, New York 10017
Issuer Name and Ticker or Trading Symbol: Sotera Health Co [SHC]
WARBURG PINCUS & CO. | ||||
| By: | /s/ Harsha G. Marti | 03/06/2024 | ||
| ** Signature of Reporting Person | Date | |||
| Name: | Harsha G. Marti | |||
| Title: | Partner | |||
WARBURG PINCUS PRIVATE EQUITY XI-C, L.P. | ||||
| By: | Warburg Pincus (Cayman) XI, L.P., its general partner | |||
| By: | Warburg Pincus XI-C, LLC, its general partner | |||
| By: | Warburg Pincus Partners II (Cayman), L.P., its managing member | |||
| By: | Warburg Pincus (Bermuda) Private Equity GP Ltd., its general partner | |||
| By: | /s/ Harsha G. Marti | 03/06/2024 | ||
| ** Signature of Reporting Person | Date | |||
| Name: | Harsha G. Marti | |||
| Title: | Partner | |||
WARBURG PINCUS (CAYMAN) XI, L.P. | ||||
| By: | Warburg Pincus XI-C, LLC, its general partner | |||
| By: | Warburg Pincus Partners II (Cayman), L.P., its managing member | |||
| By: | Warburg Pincus (Bermuda) Private Equity GP Ltd., its general partner | |||
| By: | /s/ Harsha G. Marti | 03/06/2024 | ||
| ** Signature of Reporting Person | Date | |||
| Name: | Harsha G. Marti | |||
| Title: | Partner | |||
| WARBURG PINCUS XI-C, LLC | ||||
| By: | Warburg Pincus Partners II (Cayman), L.P., its managing member | |||
| By: | Warburg Pincus (Bermuda) Private Equity GP Ltd., its general partner | |||
| By: | /s/ Harsha G. Marti | 03/06/2024 | ||
| ** Signature of Reporting Person | Date | |||
| Name: | Harsha G. Marti | |||
| Title: | Partner | |||
| WARBURG PINCUS PARTNERS II (CAYMAN), L.P. | ||||
| By: | Warburg Pincus (Bermuda) Private Equity GP Ltd., its general partner | |||
| By: | /s/ Harsha G. Marti | 03/06/2024 | ||
| ** Signature of Reporting Person | Date | |||
| Name: | Harsha G. Marti | |||
| Title: | Partner | |||
| WARBURG PINCUS (BERMUDA) PRIVATE EQUITY GP LTD. | ||||
| By: | /s/ Harsha G. Marti | 03/06/2024 | ||
| ** Signature of Reporting Person | Date | |||
| Name: | Harsha G. Marti | |||
| Title: | Partner | |||
| WARBURG PINCUS LLC | ||||
| By: | /s/ Harsha G. Marti | 03/06/2024 | ||
| ** Signature of Reporting Person | Date | |||
| Name: | Harsha G. Marti | |||
| Title: | Partner | |||
| WARBURG PINCUS PARTNERS GP, LLC | ||||
| By: | Warburg Pincus & Co., its managing member | |||
| By: | /s/ Harsha G. Marti | 03/06/2024 | ||
| ** Signature of Reporting Person | Date | |||
| Name: | Harsha G. Marti | |||
| Title: | Partner | |||