Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Casey Benita M
 2. Date of Event Requiring Statement (Month/Day/Year)
02/16/2018		 3. Issuer Name and Ticker or Trading Symbol
Celanese Corp [CE]
(Last)
(First)
(Middle)
C/O CELANESE CORPORATION, 222 W LAS COLINAS BLVD. SUITE 900N		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VP, Finance & Controller
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

IRVING, TX 75039		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
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)
Series A Common Stock 3,083 (1)
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Casey Benita M
C/O CELANESE CORPORATION
222 W LAS COLINAS BLVD. SUITE 900N
IRVING, TX 75039		       VP, Finance & Controller  

Signatures

/s/ James R. Peacock III, Attorney-in-Fact for Benita M. Casey 02/26/2018
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) Includes 2,304 and 779 time-vesting restricted stock units ("RSUs") granted pursuant to the Company's 2009 Global Incentive Plan on January 19, 2018 and February 8, 2018, respectively. Subject to continued employment, the RSUs vest as follows: 760 RSUs on each of Janauary 19, 2019 and January 19, 2020, 257 RSUs on each of February 15, 2019 and February 15, 2020, 784 RSUs on January 19, 2021 and 265 RSUs on February 15, 2021.
 
Remarks:
Exhibit List: Exhibit 24 - Power of Attorney

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