0001306830-23-000030 4 1 20230228 20230302 20230302 Kelly Thomas Francis 0001684092 4 34 001-32410 23700246 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_167779527444745.xml FORM 4 FORM 4 OMB APPROVAL [ ] Check this OMB Number: box if no longer UNITED STATES SECURITIES AND EXCHANGE COMMISSION 3235-0287 subject to Washington, D.C. 20549 Estimated Section 16. Form STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF average burden 4 or Form 5 SECURITIES hours per obligations may response... 0.5 continue. See Instruction 1(b). Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940 1. Name and Address of Reporting 2. Issuer Name and Ticker 5. Relationship of Person * or Trading Symbol Reporting Person(s) to Kelly Thomas Francis Celanese Corp [ CE ] Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title (Last) (First) (Middle) 3. Date of Earliest below) _____ Other 222 W LAS COLINAS BLVD, SUITE Transaction (MM/DD/YYYY) (specify below) 900N 2/28/2023 SVP, EM (Street) 4. If Amendment, Date 6. Individual or IRVING, TX 75039 Original Filed Joint/Group Filing (Check (City) (State) (Zip) (MM/DD/YYYY) Applicable Line) _X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security 2. 2A. 3. Trans. 4. Securities 5. Amount of 6. Ownership 7. Nature of (Instr. 3) Trans. Deemed Code Acquired (A) or Securities Form: Direct Indirect Date Execution (Instr. 8) Disposed of (D) Beneficially (D) or Beneficial Date, if (Instr. 3, 4 and Owned Indirect (I) Ownership any 5) Following (Instr. 4) (Instr. 4) Reported Transaction(s) (Instr. 3 and 4) (A) or Code V Amount (D) Price Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) 1. Title of 2. 3. Trans. Date 3A. 4. Trans. 5. Number of 6. Date Exercisable 7. Title and Amount of 8. Price 9. Number of 10. 11. Nature Derivate Conversion Deemed Code Derivative and Expiration Date Securities Underlying of derivative Ownership of Security or Execution (Instr. 8) Securities Derivative Security Derivative Securities Form of Indirect (Instr. 3) Exercise Date, if Acquired (A) or (Instr. 3 and 4) Security Beneficially Derivative Beneficial Price of any Disposed of (D) (Instr. 5) Owned Security: Ownership Derivative (Instr. 3, 4 and Following Direct (D) (Instr. 4) Security 5) Reported or Transaction(s) Indirect Date Expiration Amount or (Instr. 4) (I) Exercisable Date Title Number of (Instr. 4) Code V (A) (D) Shares Nonqualified Stock Option $116.93 2/28/2023 A 14026 (2) 2/27/2033 Common 14026.0 $0 14026 D (right to Stock buy) (1) Explanation of Responses: (1) Time-based employee stock options granted under the Company's 2018 Global Incentive Plan. (2) The options vest and become exercisable, subject to continued employment, in three annual installments of 33%, 33% and 34% beginning February 15, 2024. Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Kelly Thomas Francis 222 W LAS COLINAS BLVD SVP, EM SUITE 900N IRVING, TX 75039 Signatures /s/ Adam R. Santosuosso, Attorney-in-Fact for Thomas Francis Kelly 3/2/2023 ** Signature of Reporting Person Date Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. * If the form is filed by more than one reporting person, see Instruction 4(b)(v). ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure. Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.