X0305 4 2012-04-26 0 0001306830 Celanese CORP CE 0001257328 WULFF JOHN K C/O CELANESE CORPORATION 222 W. LAS COLINAS BLVD., SUITE 900N IRVING TX 75039 1 0 0 0 Series A Common Stock 2012-04-26 4 A 0 2000 0 A 19664 D Annual grant of restricted stock units pursuant to the Company's 2009 Global Incentive Plan, as Amended and Restated April 19, 2012. The restricted stock units vest in full on the one-year anniversary of the date of grant. The reporting person has elected that upon vesting of the restricted stock units, receipt of the shares of Series A Common Stock be deferred under the Company's 2008 Deferred Compensation Plan; accordingly, upon vesting, the reporting person will instead receive an equal number of shares of phantom stock. As provided in the Company's 2008 Deferred Compensation Plan, the phantom stock becomes payable in shares of Series A Common Stock upon the termination of the reporting person's service as a director of the Company. Exhibit List: Exhibit No. 24 - Power of Attorney /s/ James R. Peacock III, Attorney-in-fact for John K. Wulff 2012-04-30