0001306830-21-000076 4 1 20210331 20210331 20210331 Jurecka Shannon L 0001718937 4 34 001-32410 21793865 C/O CELANESE CORPORATION 222 W LAS COLINAS BLVD, SUITE 900N IRVING TX 75039 Celanese Corp 0001306830 2820 980420726 DE 1231 222 W. LAS COLINAS BLVD., SUITE 900N IRVING TX 75039-5421 972-443-4000 222 W. LAS COLINAS BLVD., SUITE 900N IRVING TX 75039-5421 Celanese CORP 20041102 Blackstone Crystal Holdings Capital Partners (Cayman) IV Ltd. 20041022 4 1 wf-form4_161722266913928.xml FORM 4 X0306 4 2021-03-31 1 0001306830 Celanese Corp CE 0001718937 Jurecka Shannon L C/O CELANESE CORPORATION 222 W LAS COLINAS BLVD., STE 900N IRVING TX 75039 0 1 0 0 SVP, HR (CHRO) Common Stock 2021-03-31 4 D 0 4849 0 D 17347.191 D Represents unvested restricted stock units foreited in connection with reporting person's resignation from the Company. The reporting person resigned as the Company's Senior Vice President and Chief Human Resources Officer effective March 31, 2021. As a result, the reporting person is no longer subject to Section 16 in connection with his transactions in the Company's equity securities and therefore will no longer report any such transactions on Form 4 or Form 5. /s/ Adam R. Santosuosso, Attorney-in Fact for Shannon L. Jurecka 2021-03-31