0001306830-20-000188 4 1 20201014 20201016 20201016 Kissire Deborah J. 0001648794 4 34 001-32410 201244097 210 E. EARLL DRIVE PHOENIX AZ 85012 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_160287906452596.xml FORM 4 X0306 4 2020-10-14 0 0001306830 Celanese Corp CE 0001648794 Kissire Deborah J. C/O CELANESE CORPORATION 222 W LAS COLINAS BLVD, SUITE 900N IRVING TX 75039 1 0 0 0 Common Stock 2020-10-14 4 A 0 754 115.98 A 854 D Prorated annual grant of time-based restricted stock units ("RSUs") granted pursuant to the Company's 2018 Global Incentive Plan. The RSUs vest in full on April 30, 2021. Each RSU represents the right to receive one share of Common Stock. The reporting person may elect to have receipt of the shares of Common Stock deferred under the Company's 2008 Deferred Compensation Plan. /s/ Michael R. Sullivan, Attorney-in-Fact for Deborah J. Kissire 2020-10-16