FORM 4 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 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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1. Name and Address of Reporting Person * Oberle Mark   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) SVP, Corporate Affairs (Last) (First) (Middle) C/O CELANESE CORPORATION, 1601 W. LBJ FREEWAY 3. Date of Earliest Transaction (Month/Day/Year) 02/17/2012 (Street) DALLAS, TX 75234 4. If Amendment, Date Original Filed(Month/Day/Year) 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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 02/17/2012   M   11,400 A $ 15.16 36,272 D   Series A Common Stock 02/17/2012   S   11,400 D $ 52.11 (1) 24,872 D   Series A Common Stock               638.66 (2) I By 401(k) Plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

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 (Month/Day/Year)

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

Non-Qualified Stock Option (right to buy)

$ 15.16

02/17/2012

M

4,800

(3)

04/18/2015

Series A Common Stock

4,800

$ 0

0

D

Non-Qualified Stock Option (right to buy)

$ 15.16

02/17/2012

M

6,600

(4)

04/18/2015

Series A Common Stock

6,600

$ 0

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Oberle Mark C/O CELANESE CORPORATION 1601 W. LBJ FREEWAY DALLAS, TX 75234			SVP, Corporate Affairs

Signatures

/s/ James R. Peacock III, Attorney-in-Fact for Mark Oberle		02/21/2012
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	The reported price in this line is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $51.87 to $52.50. The reporting person will provide 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 within the range.
(2)	Represents equivalent shares of Series A Common Stock held by the reporting person under the Celanese Americas Retirement Savings Plan as of January 31, 2012.
(3)	Granted pursuant to the Company's 2004 Stock Incentive Plan. The options vested with respect to 20% of the options on each of December 31, 2005, December 31, 2006, December 31, 2007, December 31, 2008 and March 31, 2009.
(4)	Granted pursuant to the Company's 2004 Stock Incentive Plan. The options vested with respect to 15% of the options on December 31, 2005, with repsect to 30% on each of December 31, 2006 and December 31, 2007, and with respect to 25% on December 31, 2008.

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