0001306830-23-000032 4 1 20230228 20230302 20230302 Murray Mark Christopher 0001800013 4 34 001-32410 23700275 100 MATSONFORD ROAD RADNOR PA 19087 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_167779536207295.xml FORM 4 X0306 4 2023-02-28 0 0001306830 Celanese Corp CE 0001800013 Murray Mark Christopher 222 W. LAS COLINAS BLVD STE 900N IRVING TX 75039 0 1 0 0 SVP - Acetyls Common Stock 2023-02-28 4 P 0 1200 117.15 A 10589 D Nonqualified Stock Option (right to buy) 116.93 2023-02-28 4 A 0 8044 0 A 2033-03-27 Common Stock 8044.0 8044 D The reported price in this line is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $117.128 to $117.156, inclusive. The reporting person will provide to the Company, any security holder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares purchased at each price. Time-based employee stock options granted under the Company's 2018 Global Incentive Plan. The options vest and become exercisable, subject to continued employment, in three annual installments of 33%, 33% and 34% beginning February 15, 2024. /s/ Michael R. Sullivan, Attorney-in-Fact for Mark Christopher Murray 2023-03-01