0001306830-24-000167 4 1 20240819 20240821 20240821 Richardson Scott A 0001731988 4 34 001-32410 241229175 C/O CELANESE CORPORATION 222 W LAS COLINAS BLVD, SUITE 900N IRVING TX 75039 Celanese Corp 0001306830 2820 08 Industrial Applications and Services 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 wk-form4_1724272612.xml FORM 4 FORM 4 OMB APPROVAL ? Check this box OMB Number: if no longer 3235-0287 subject to Estimated Section 16. Form average burden 4 or Form 5 hours per obligations may response... 0.5 continue. See Instruction 1(b). ? Check this box UNITED STATES SECURITIES AND EXCHANGE COMMISSION to indicate that Washington, D.C. 20549 a transaction STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF was made SECURITIES pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10. 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 Richardson Scott A Celanese Corp [ CE ] Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title (Last) (First) (Middle) 3. Date of Earliest below) _____ Other C/O CELANESE CORPORATION, 222 W Transaction (MM/DD/YYYY) (specify below) LAS COLINAS BLVD., SUITE 900N 8/19/2024 EVP & COO (Street) 4. If Amendment, Date 6. Individual or IRVING, TX 75039 Original Filed Joint/Group Filing (Check (MM/DD/YYYY) Applicable Line) _X _ Form filed by One Reporting Person ___ Form filed by More (City) (State) (Zip) than One Reporting Person Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security 2. Trans. Date 2A. 3. Trans. 4. Securities Acquired (A) or 5. Amount of 6. Ownership 7. Nature of (Instr. 3) Deemed Code Disposed of (D) Securities Form: Direct (D) Indirect Execution (Instr. 8) (Instr. 3, 4 and 5) Beneficially or Indirect (I) Beneficial Date, if Owned Following (Instr. 4) Ownership any Reported (Instr. 4) Transaction(s) (A) (Instr. 3 and 4) or Code V Amount (D) Price Common Stock 8/19/2024 S 4,675 (1) D $129.51 69,753.703 D Common Stock 8/20/2024 S 4,675 (1) D $129.41 65,078.703 D Common Stock 588.578 I by 401(k) Plan Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) 1. Title of 2. 3. 3A. 4. Trans. 5. Number of 6. Date Exercisable 7. Title and Amount of 8. Price 9. Number of 10. 11. Nature Derivate Conversion Trans. Deemed Code Derivative and Expiration Date Securities Underlying of derivative Ownership of Security or Date 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 Following Direct (D) (Instr. 4) Security and 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 Explanation of Responses: (1) The sales reported in this line were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 17, 2024. Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Richardson Scott A C/O CELANESE CORPORATION EVP & COO 222 W LAS COLINAS BLVD., SUITE 900N IRVING, TX 75039 Signatures /s/ Adam R. Santosuosso, Attorney-in-Fact for Scott A. Richardson 8/21/2024 ** 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.