Sec Form 4 Filing - Beach Lin Sandra @ Celanese CORP - 2010-08-01

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 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 Beach Lin Sandra 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) Corporate EVP (Last) (First) (Middle) C/O CELANESE CORPORATION, 1601 W. LBJ FREEWAY 3. Date of Earliest Transaction (MM/DD/YY) 08/01/2010 (Street) DALLAS, TX75234 4. If Amendment, Date Original Filed (MM/DD/YY) 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 Restricted Stock Unit ( 1 ) 08/01/2010 D 19,500 D $ 0 10,500 D Restricted Stock Unit ( 2 ) 08/01/2010 A 26,353 A $ 0 36,853 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

Reportin g Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Beach Lin Sandra C/O CELANESE CORPORATION 1601 W. LBJ FREEWAY DALLAS, TX75234 Corporate EVP Signatures Alexander M Ludlow, attorney-in-fact for Sandra Beach Lin 08/03/2010 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The Restricted Stock Units (RSUs) represent unvested RSUs forfeited in connection with the termination of the reporting person's service with the company. ( 2 )The RSUs represent previously granted performance-based RSUs that vested in connection with the termination of the reporting person's service with the company. 3,750 of the RSUs will settle on September 30, 2010; 16,250 of the RSUs will settle on September 30, 2011; and 6,353 of the RSUs will settle on September 30, 2012.

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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