0001306830-22-000110 4 1 20220503 20220505 20220505 Hoffmeister David F 0001305975 4 34 001-32410 22897244 C/O STEPSTONE GROUP INC. 450 LEXINGTON AVENUE, 31ST FLOOR NEW YORK NY 10017 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_165178363111091.xml FORM 4 X0306 4 2022-05-03 0 0001306830 Celanese Corp CE 0001305975 Hoffmeister David F C/O CELANESE CORPORATION 222 W. LAS COLINS BLVD., SUITE 900N IRVING TX 75039-5421 1 0 0 0 Common Stock 2022-05-03 4 A 0 1098 145.68 A 48493 D Annual grant of restricted stock units pursuant to the Company's 2018 Global Incentive Plan. The restricted stock units vest in full on the one-year anniversary of the date of grant. /s/ Adam R. Santosuosso, Attorney-in-Fact for David F. Hoffmeister 2022-05-05