Crystal US Holdings 3 L.L.C. et Crystal US Sub 3 Corp. annoncent l'expiration de leur offre d'?change concernant les obligations S?nior ? 10 % de cat?gorie A de maturit? 2014 et l'obligation Senior ? 10,5% de cat?gorie B de maturit? 2014

Crystal US Holdings 3 L.L.C. and Crystal US Sub 3 Corp. Announce Expiration of Exchange Offer for Their 10 Percent Series A Senior Discount Notes Due 2014 and 10 1/2 Percent Series B Senior Discount Notes Due 2014

Business Editors

DALLAS--(BUSINESS WIRE)--June 8, 2005--Crystal US Holdings 3 L.L.C. and Crystal US Sub 3 Corp., subsidiaries of Celanese Corporation (NYSE:CE), announced the completion of their offer to exchange all of their outstanding 10% Series A Senior Discount Notes due 2014 and 10 1/2% Series B Senior Discount Notes due 2014 (collectively, the "Outstanding Notes") for an equal principal amount at maturity of their 10% Series A Senior Discount Notes due 2014 and 10 1/2% Series B Senior Discount Notes due 2014, respectively, which have been registered under the Securities Act of 1933 (collectively, the "Exchange Notes").

The exchange offer expired at 5 p.m., New York City time, on June 7, 2005.

At the time of the expiration, tenders of approximately $105.95 million aggregate principal amount at maturity, or 100%, of the outstanding 10% Series A Senior Discount Notes due 2014 and approximately $447.53 million aggregate principal amount at maturity, or 99.8%, of the outstanding 10 1/2% Series B Senior Discount Notes due 2014, in each case excluding tenders pursuant to the guaranteed delivery procedure, have been received pursuant to the exchange offer

The exchange offer was originally set to expire at 5:00 p. m., New York City time, on May 27, 2005

This press release is neither an offer to exchange nor a solicitation of an offer to exchange any securities

SAFE HARBOR STATEMENT UNDER THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995 Except for historical information contained herein, the matters set forth in this news release are forward-looking statements.

The forward-looking statements set forth above involve a number of risks and uncertainties that could cause actual results to differ materially from any such statement, including the risks and uncertainties discussed in the company's Safe Harbor Compliance Statement for Forward-looking Statements included in the company's filings with the Securities and Exchange Commission.

The forward-looking statements speak only as of the date made, and the company undertakes no obligation to update these forward-looking statements

CONTACT:

Celanese Corporation, USA Media Jeanne Cullers,

972-443-4824

Telefax: 972-443-8519

Email: [email protected]

Investors Mark Oberle,

972-443-4464

Telefax: 972-443-8519

Email: [email protected] or Andrea Stine,

908-901-4504

Telefax: 908-901-4805

Email: [email protected]

or Celanese Corporation, Europe Media Michael Kraft,

+49 (0)69/305-14072

Telefax: +49 (0)69/305-36787

Email: [email protected]

KEYWORD: TEXAS INTERNATIONAL EUROPE

INDUSTRY KEYWORD: BANKING

SOURCE: Crystal US Holdings 3 L.L.C