| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Richardson Scott A | CEO & President, Director | C/O CELANESE CORPORATION, 222 W LAS COLINAS BLVD., SUITE 900N, IRVING | /s/ Adam R. Santosuosso, Attorney-in-Fact for Scott A. Richardson | 12 Dec 2025 | 0001731988 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CE | Common Stock | Purchase | $158K | +3.8K | +5.7% | $41.59 | 70.4K | 10 Dec 2025 | Direct | |
| holding | CE | Common Stock | 597 | 10 Dec 2025 | by 401(k) Plan |