| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Lund Elizabeth Hefley | Director | C/O ATI INC., 2021 MCKINNEY AVE., SUITE 1100, DALLAS | /s/ Amanda J. Skov, Attorney-in-Fact for Elizabeth Hefley Lund | 2025-11-12 | 0002095590 |
No securities are beneficially owned.