Sec Form 4/A Filing - Edwards Peter G @ Celanese Corp - 2018-03-05

FORM 4/A Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP 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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1. Name and Address of Reporting Person Edwards Peter G 2. Issuer Name and Ticker or Trading Symbol Celanese Corp [ CE] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) EVP & GC (Last) (First) (Middle) C/O CELANESE CORPORATION, 222 W. LAS COLINAS BLVD., SUITE 900N 3. Date of Earliest Transaction (MM/DD/YY) 03/05/2018 (Street) IRVING, TX75039 4. If Amendment, Date Original Filed (MM/DD/YY) 06/15/2018 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 Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Series A Common Stock 03/05/2018( 1 ) L 15.388 ( 1 ) A $ 103.97 15,849.388 D Series A Common Stock 05/11/2018( 1 ) L 17.297 ( 1 ) A $ 109.05 15,866.685 D Series A Common Stock 06/15/2018 S 3,674 ( 2 ) D $ 115.4419 12,192.685 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Edwards Peter G C/O CELANESE CORPORATION 222 W. LAS COLINAS BLVD., SUITE 900N IRVING, TX75039 EVP & GC Signatures /s/ James R. Peacock III, as Attorney-in-Fact for Peter G. Edwards 06/19/2018 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Reflects shares acquired by the Reporting Person as a result of the reinvestment by the Company's stock plan administrator of cash dividends received. Reporting of this acquisition was deferred under Rule 16a-6(a); however, because of the Reporting Person's sale of shares on June 15, 2018, the reporting of the acquisition is no longer deferred and is being reported on this Form 4 in accordance with Rule 16a-6(b). ( 2 )The reported price in this line is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $115.447 to $115.46. 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 sold at each price.

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).

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