X0202 4 2005-01-25 0 0001306830 Celanese CORP CE 0001070844 SCHWARZMAN STEPHEN A C/O THE BLACKSTONE GROUP 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 Non-Qualified Stock Option (right to buy) 16.00 2005-01-25 4 A 0 123110 0 D 2015-01-25 Series A Common Stock 123110 123110 I See Footnote All rights to the non-qualified stock options have been issued to Blackstone Management Partners IV L.L.C. ("BMP IV LLC") in connection with the services of Messrs. Chinh E. Chu, Benjamin J. Jenkins, Anjan Mukherjee, Hanns Ostmeier and James A. Quella as directors of the Issuer. The options vest with respect to 25% of the option shares on January 25, 2005, and subject to continued service of Messrs. Chinh E. Chu, Benjamin J. Jenkins, Anjan Mukherjee, Hanns Ostmeier and James A. Quella as directors of the Issuer, with respect to 25% on each of December 31, 2005, December 31, 2006 and December 31, 2007. The Reporting Person is a controlling person of BMP IV LLC and, as such, may be deemed to share beneficial ownership of the securities held by BMP IV LLC. Pursuant to Rule 16a-1(a)(4) of the Securities Exchange Act of 1934, as amended, the Reporting Person herein states that this filing shall not be deemed an admission that he is the beneficial owner of any of the securities covered by this Statement. The Reporting Person disclaims beneficial ownership of the securities, except to the extent of his pecuniary interest in such securities. /s/ Stephen A. Schwarzman 2005-01-27