Exhibit 1
JOINT FILING AGREEMENT
In accordance with Rule 13d-1(f) of the Securities Exchange Act of 1934, as
amended, the undersigned hereby agree to the joint filing on behalf of each of
us of an amendment to Schedule 13D relating to the Ordinary Shares of Celanese
AG, a German stock corporation, and that any subsequent amendments thereto filed
by any of us will be filed on behalf of each of us. This Agreement may be
included as an exhibit to such joint filing.
DATE: December 24, 2003
BCP CRYSTAL ACQUISITION GMBH & CO. KG
By: /s/ Xxxxx Xxx
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Name: Xxxxx Xxx
Title: Authorized Person
BCP ACQUISITION GMBH & CO. KG
By: /s/ Xxxxx Xxx
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Name: Xxxxx Xxx
Title: Authorized Person
BCP HOLDINGS GMBH
By: /s/ Xxxxx Xxx
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Name: Xxxxx Xxx
Title: Authorized Person
BCP MANAGEMENT GMBH
By: /s/ Xxxxx Xxx
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Name: Xxxxx Xxx
Title: Authorized Person
BCP LUXEMBOURG HOLDINGS S.AR.L.
By: /s/ Xxxxx Xxx
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Name: Xxxxx Xxx
Title: Authorized Person
BLACKSTONE CAPITAL PARTNERS (CAYMAN) IV L.P.
By: Blackstone Management
Associates (Cayman) IV L.P.,
its general partner
By: Xxxxxxxxxx XX Associates
(Cayman) IV Ltd.,
its general partner
By: /s/ Xxxxx Xxx
------------------------
Name: Xxxxx Xxx
Title: Authorized Person
BLACKSTONE CAPITAL PARTNERS (CAYMAN) IV-A L.P.
By: Blackstone Management Associates
(Cayman) IV L.P.,
its general partner
By: Xxxxxxxxxx XX Associates
(Cayman) IV Ltd.,
its general partner
By: /s/ Xxxxx Xxx
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Name: Xxxxx Xxx
Title: Authorized Person
BLACKSTONE FAMILY INVESTMENT PARTNERSHIP
(CAYMAN) IV-A L.P.
By: Blackstone Management Associates
(Cayman) IV L.P.,
its general partner
By: Xxxxxxxxxx XX Associates
(Cayman) IV Ltd.,
its general partner
By: /s/ Xxxxx Xxx
--------------------------
Name: Xxxxx Xxx
Title: Authorized Person
BLACKSTONE MANAGEMENT ASSOCIATES (CAYMAN) IV L.P.
By: Xxxxxxxxxx XX Associates (Cayman) IV Ltd.,
its general partner
By: /s/ Xxxxx Xxx
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Name: Xxxxx Xxx
Title: Authorized Person
XXXXXXXXXX XX ASSOCIATES (CAYMAN) IV LTD.
By: /s/ Xxxxx Xxx
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Name: Xxxxx Xxx
Title: Authorized Person
/s/ Xxxxx X. Xxxxxxxx
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XXXXX X. XXXXXXXX
/s/ Xxxxxxx X. Xxxxxxxxxx
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XXXXXXX X. XXXXXXXXXX