SEC Form 4

FORM 4		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 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* HAIN J TRAVIS (Last) (First) (Middle) 100 NORTH TRYON STREET (Street) CHARLOTTE NC 28255 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol Celanese CORP [ CE ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 12/20/2005
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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
Series A Common Stock	12/20/2005		S		425,295	D	$18	6,592,300(1)(2)	I	see footnote(3)

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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. Pursuant to that Third Amended and Restated Shareholders' Agreement, dated as of 10/31/05, as amended by Amendment #1, by and among Celanese Corporation, Blackstone Capital Partners (Cayman) Ltd. 1 ("BCP 1"), Blackstone Capital Partners (Cayman) Ltd. 2 ("BCP 2") and Blackstone Capital Partners (Cayman) Ltd. 3 ("BCP 3" and, together with BCP 1 and BCP 2, the "Blackstone Entities") and BA Capital Investors Sidecar Fund, L.P. ("BACI"), BACI has granted BCP 1 (or one or more of its affiliates) a proxy (the "Proxy") to vote the shares of Series A Common Stock held by BACI with respect to all matters to be acted upon by the stockholders of Celanese Corporation at any time during the term of such Shareholders Agreement or until such time as the Blackstone entities and BACI together own less than 50% of the outstanding shares of Series A Common Stock or the Proxy is otherwise terminated.

2. BACI and the Blackstone entities and certain of their affiliates may be considered to have acted or to be acting in concert with respect to the common stock and, consequently, BACI and the Blackstone Entities and certain of their affiliates may be deemed to constitute a "group" for purposes of Section 13(D) of the Exchange Act. BACI disclaims membership in any such "group" with the Blackstone Entities and certain of their affiliates. BACI disclaims beneficial ownership of any shares held by the Blackstone Entites.

3. BA Capital Investors Sidecar Fund, L.P. ("BACI") owns the securities reported as beneficially owned on this Form 4. As a director of BACM I Sidecar GP Limited, the General Partner of BA Capital Management Sidecar, L.P., which is the General Partner of BACI, Mr. Hain controls BACI. Mr. Hain disclaims beneficial ownership of the reported shares except to the extent of his pecuniary interest therein.

	/s/ J. Travis Hain	12/20/2005
	** Signature of Reporting Person	Date
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* 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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