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
                                                                                  
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OMB Number: 3235-0287
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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 *

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 (MM/DD/YYYY)

2/17/2012
(Street)

DALLAS, TX 75234
(City)        (State)        (Zip)
4. 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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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   2/17/2012     M    11400   A $15.16   36272   D    
Series A Common Stock   2/17/2012     S    11400   D $52.11   (1) 24872   D    
Series A Common Stock                  638.66   (2) 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. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 7. Title and Amount of Securities Underlying Derivative Security
(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   2/17/2012     M         4800      (3) 4/18/2015   Series A Common Stock   4800   $0   0   D    
Non-Qualified Stock Option (right to buy)   $15.16   2/17/2012     M         6600      (4) 4/18/2015   Series A Common Stock   6600   $0   0   D    

Explanation of Responses:
(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.

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 2/21/2012
** 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.