Washington, D.C. 20549


OMB Number: 3235-0104
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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 Person *

Duffie Ashley B
2. Date of Event Requiring Statement (MM/DD/YYYY)

3. Issuer Name and Ticker or Trading Symbol

Celanese Corp [CE]
(Last)        (First)        (Middle)

4. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                          _____ 10% Owner
___X___ Officer (give title below)        _____ Other (specify below)
SVP & GC /

IRVING, TX 75039      

(City)              (State)              (Zip)
5. If Amendment, Date Original Filed(MM/DD/YYYY)

6. Individual or Joint/Group Filing(Check Applicable Line)

_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 11,106 (1)D  
Common Stock 522.0703 I By 401(k) Plan 

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 4)
2. Date Exercisable and Expiration Date
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date ExercisableExpiration DateTitleAmount or Number of Shares
Non-Qualified Stock Option (right to buy) (2) (2)2/27/2033 Common Stock 4,125  $116.93 D  

Explanation of Responses:
(1) Includes 247 and 422 time-vesting restricted stock units ("RSUs") granted pursuant to the Company's 2018 Global Incentive Plan on February 10, 2021 and February 9, 2022 respectively. Subject to continued employment, the RSUs vest as follows: 454 RSUs on February 15, 2024 and 215 RSUs on February 15, 2025.
(2) The options vest and become exercisable, subject to continued employment, in three annual installments of 33%, 33% and 34% beginning February 15, 2024.

Exhibit List: Exhibit No. 24 - Power of Attorney

Reporting Owners
Reporting Owner Name / Address
Director10% OwnerOfficerOther
Duffie Ashley B
IRVING, TX 75039


/s/ Michael R. Sullivan, Attorney-in-Fact for Ashley B. Duffie11/17/2023
**Signature of Reporting PersonDate

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 5(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.


Know all by these presents that the undersigned hereby makes, constitutes and appoints Michael R. Sullivan, Blake Feikema, Adam R. Santosuosso and Christine Dyrden signing singly, as the undersigned's true and lawful attorney-in-fact, with full power and authority as hereinafter described on behalf of and in the name, place and stead of the undersigned to:

(1) prepare, execute in the undersigned's name and on the undersigned's behalf, and submit to the U.S. Securities and Exchange Commission ("SEC") a Form ID, including amendments thereto, and any other documents necessary or appropriate to obtain codes and passwords enabling the undersigned to make electronic filings with the SEC of reports required by Section 16(a) of the Securities Exchange Act of 1934, as amended (the "Exchange Act") or any rules or regulations of the SEC;

(2) prepare, execute, acknowledge, deliver and file Forms 3, 4, and 5 and Forms 144 (including any amendments thereto) and any other forms or reports required with respect to the securities of Celanese Corporation, a Delaware corporation (the "Company"), with the United States Securities and Exchange Commission and any national securities exchanges, as considered necessary or advisable under Section 16(a) of the Exchange Act or similar provisions of securities laws;

(3) seek or obtain, as the undersigned's representative and on the undersigned's behalf, information on transactions in the Company's securities from any third party, including brokers, employee benefit plan administrators and trustees, and the undersigned hereby authorizes any such person to release any such information to the undersigned and approves and ratifies any such release of information; and

(4) perform any and all other acts which in the discretion of such attorney-in-fact are necessary or desirable for and on behalf of the undersigned in connection with the foregoing.

The undersigned acknowledges that:

(1) this Power of Attorney authorizes, but does not require, such attorney- in-fact to act in his or her discretion on information provided to such attorney-in-fact without independent verification of such information;

(2) any documents prepared and/or executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney will be in such form and will contain such information and disclosure as such attorney-in-fact, in his or her discretion, deems necessary or desirable;

(3) neither Celanese nor such attorneys-in-fact assumes

(i) any liability for the undersigned's responsibility to comply with the requirements of the Exchange Act,

(ii) any liability of the undersigned for any failure to comply with such requirements, or

(iii) any obligation or liability of the undersigned for profit disgorgement under Section 16(b) of the Exchange Act; and

(4) this Power of Attorney does not relieve the undersigned from responsibility for compliance with the undersigned's obligations under the Exchange Act, including without limitation the reporting requirements under Section 16 of the Exchange Act.

The undersigned hereby gives and grants each foregoing attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary or appropriate to be done in and about the foregoing matters as fully to all intents and purposes as the undersigned might or could do if present, hereby ratifying all that such attorney-in-fact, for and on behalf of the undersigned, will lawfully do or cause to be done by virtue of this Power of Attorney.

This Power of Attorney will remain in full force and effect until the undersigned is no longer required to file the forms noted above with respect to the undersigned's holdings of and transactions in the Company's securities, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of the date set forth below.

/s/ Ashley B. Duffie

Name: Ashley B. Duffie
Dated: 11-7-2023