The document summarizes Celanese Corporation's 1Q 2006 earnings conference call and webcast scheduled for May 9, 2006. It includes an agenda with the CEO and CFO slated to speak. Financial highlights are provided for Celanese's 1Q 2006 results including net sales growth of 12% and diluted adjusted EPS growth of 16% year-over-year. Guidance for full year 2006 adjusted EPS is given in the range of $2.50 to $2.90 per share. Various non-GAAP financial measures are reconciled to the most comparable GAAP measures.

1. Celanese 1Q 2006 Earnings
Conference Call / Webcast
Tuesday, May 9, 2006 3:30 p.m. CT
Dave Weidman, President and CEO
John J. Gallagher III, Executive Vice President and CFO
1

2. Forward Looking Statements, Reconciliation and Use of Non-GAAP Measures
to U.S. GAAP
This release may contain “forward-looking statements,” which include information concerning the company’s plans, objectives, goals, strategies,
future revenues or performance, capital expenditures, financing needs and other information that is not historical information. When used in this
release, the words “outlook,” “forecast,” “estimates,” “expects,” “anticipates,” “projects,” “plans,” “intends,” “believes,” and variations of such
words or similar expressions are intended to identify forward-looking statements. All forward-looking statements are based upon current
expectations and beliefs and various assumptions. There can be no assurance that the company will realize these expectations or that these beliefs
will prove correct.
There are a number of risks and uncertainties that could cause actual results to differ materially from the forward-looking statements contained in
this release. Numerous factors, many of which are beyond the company’s control, could cause actual results to differ materially from those
expressed as forward-looking statements. Certain of these risk factors are discussed in the company’s filings with the Securities and Exchange
Commission. Any forward-looking statement speaks only as of the date on which it is made, and the company undertakes no obligation to update
any forward-looking statements to reflect events or circumstances after the date on which it is made or to reflect the occurrence of anticipated or
unanticipated events or circumstances.
This release reflects three performance measures, operating EBITDA, adjusted earnings per share and net debt as non-U.S. GAAP measures. The
most directly comparable financial measure presented in accordance with U.S. GAAP in our consolidated financial statements for operating
EBITDA is operating profit; for adjusted earnings per share is earnings per common share-diluted; and for net debt is total debt.
Use of Non-U.S. GAAP Financial Information
Operating EBITDA, a measure used by management to measure performance, is defined as operating profit from continuing operations,
plus equity in net earnings from affiliates, other income and depreciation and amortization, and further adjusted for special charges and
other adjustments. Our management believes operating EBITDA is useful to investors because it is one of the primary measures our
management uses for its planning and budgeting processes and to monitor and evaluate financial and operating results. Operating
EBITDA is not a recognized term under U.S. GAAP and does not purport to be an alternative to operating profit as a measure of
operating performance or to cash flows from operating activities as a measure of liquidity. Because not all companies use identical
calculations, this presentation of operating EBITDA may not be comparable to other similarly titled measures of other companies.
Additionally, operating EBITDA is not intended to be a measure of free cash flow for management’s discretionary use, as it does not
consider certain cash requirements such as interest payments, tax payments and debt service requirements nor does it represent the
amount used in our debt covenants.
Adjusted earnings per share is a measure used by management to measure performance. It is defined as net earnings (loss) available to
common shareholders plus preferred dividends, adjusted for special charges and other adjustments, and divided by the number of basic
common shares, diluted preferred shares, and options valued using the treasury method. We believe that the presentation of this non-
U.S. GAAP measure provides useful information to management and investors regarding various financial and business trends relating
to our financial condition and results of operations, and that when U.S. GAAP information is viewed in conjunction with non-U.S.
GAAP information, investors are provided with a more meaningful understanding of our ongoing operating performance. This non-
U.S. GAAP information is not intended to be considered in isolation or as a substitute for U.S. GAAP financial information.
Net debt is defined as total debt less cash and cash equivalents. We believe that the presentation of this non-U.S. GAAP measure
provides useful information to management and investors regarding changes to the company’s capital structure. Our management and
credit analysts use net debt to evaluate the company's capital structure and assess credit quality. This non-U.S. GAAP information is
not intended to be considered in isolation or as a substitute for U.S. GAAP financial information.
2

3. Dave Weidman
President and Chief Executive Officer
3

4. Celanese Corporation Q1 2006 Highlights
1st Qtr 2006 1st Qtr 2005
in $ millions (except EPS) FY 2005
Net Sales 1478 6,070
1,652
$0.62 2.24**
Diluted Adjusted EPS* $0.72
Operating EBITDA 285 1,053
304
≥ Net sales increase 12% from prior year
≥ Operating profit rises 26% on strong business performance, fewer
_special charges and cost improvement
≥ Diluted adjusted EPS up 16% to $0.72
≥ Operating EBITDA increases 7% to $304 million
* Based on diluted shares of 171.5 million as of Mar. 31, 2006, and a 28% effective tax rate
** Including 5 cents per share for discontinued operations
4

5. Our Strategy for Success
1) Attractive hybrid ≥ Nearly 50% of Operating EBITDA generated in
business model downstream businesses
2) Clear advantage in ≥ New VAntage PlusTM technology in Cangrejera
technology and costs
3) Positive industry ≥ Several competitor capacity increases delayed
fundamentals
4) Strong leading global ≥ Benefit in Ticona from divesting COC
producer positions
5) Celanese specific ≥ S&A costs down to 9.2% of sales from 10.8%
opportunities
6) Strong cash generation ≥ Strong underlying performance of business
55

6. John J. Gallagher III
Executive Vice President and Chief Financial Officer
6

7. Celanese Corporation Financial Highlights
1st Qtr 2006 1st Qtr 2005
in $ millions (except EPS) FY 2005
Net Sales 1478 6,070
1,652
SG&A (159) (562)
(152)
Operating Profit 156 561
197
Net Earnings (10) 277
117
Special Items
Special Charges - (38) (73)
Other Adjustments (10) (86)
(10)
$0.62 2.24**
Diluted Adjusted EPS* $0.72
Operating EBITDA 285 1,053
304
* Based on diluted shares of 171.5 million as of Mar. 31, 2006, and a 28% effective tax rate
** Including 5 cents per share for discontinued operations
7

8. Chemical Products
1st Qtr 2006
in $ millions FY 2005
Net Sales $1,169 up 12% $4,336
Operating EBITDA $208 down 8% $812
First Quarter 2006:
> Strong earnings on continued high utilization across industry,
however, down versus record Q1 2005
> Margin recovery in downstream businesses
> Reduced dividends from Saudi cost investment (IBN Sina)
Strong integrated chain of acetyl products
8

9. Ticona Technical Polymers
1st Qtr 2006
in $ millions FY 2005
Net Sales $231 down 3% $887
Operating EBITDA $69 up 3% $204
First Quarter 2006:
> Increased penetration in key customer segments
> Operating margins expanded on increased sales and reduced spending
> Improved demand in European market
Focus on increased growth through innovation
9

10. Acetate Products
1st Qtr 2006
in $ millions FY 2005
Net Sales $167 up 1% $659
Operating EBITDA $30 up 50% $86
> Revitalization still on track
> China venture tow expansion complete, moving forward on flake expansion
> Dividends from China affiliate expected to resume in Q2 2006
Performance Products
1st Qtr 2006
in $ millions FY 2005
Net Sales $49 up 4% $180
Operating EBITDA $21 up 31% $64
> Stable earnings on continued strong sweetener demand
> Pricing declines consistent with strategy of sales to large-volume customers
Attractive, cash generating businesses
10

11. Capitalization
(in $ millions)
December 31, December 31,
2004 2005
838 390
Cash
624 1,708
Senior Credit Term Loan
- -
Senior Credit Revolver
350 -
Floating Rate Term Loan
974 1,708
Total Senior Debt
1,231 800
Senior Sub Notes ($)
272 153
Senior Sub Notes ( *)
383 397
Other Debt
2,860 3,058
Total Cash Pay Debt
103 73
Discount Notes Series A
424 306
Discount Notes Series B
3,387 3,437
Total Debt
(112) 219
Shareholders' Equity
3,275 3,656
Total Capitalization
2,549 3,047
Net Debt(Total Debt Less Cash)
* Translated at 1.1797 - effective date December 31, 2005
11

12. 2006 Business Outlook
► Favorable industry dynamics
Chemical
Products ► Continued strong global demand
2006 Adjusted
► Increasing penetration in key customer
EPS Guidance
segments
$2.50 to $2.90
Ticona
► Improved global demand
► Positive impact of COC sale > Includes $25 - $30
million lower D&A
► Improving earnings with progress on
restructuring > Higher forecast tax
Acetate
rate for 2006 of 28%
► Resumption of dividends from affiliates
Products
► On path to targeted profitability levels
► Planned margin compression continues
Performance
► Moving toward specialty-chemical
Products
performance
12

13. 2006 Guidance
► Adjusted EPS: $2.50 to $2.90
► Depreciation/Amortization
• $275 - $300 million
► Cash Interest Expense
• $230 - $250 million
► Effective Tax Rate
• 28%
► Capital Expenditures
• $200 - $250 million
► CE Equity
• 158.6 million shares common stock outstanding
• 1.0 million stock option grants*
• 12 million shares convertible preferred
* Based on total of 11 million stock option grants valued using the Treasury Method as of Mar 31, 2006.
13

14. 2005 Operating EBITDA by Segment
1st Qtr 2nd Qtr 3rd Qtr 4th Qtr
in $ millions Full Year
Chemical Products 226 191 198 197 812
Technical Polymers 67 55 50 32 204
Ticona
Acetate Products 20 21 17 28 86
Performance Products 16 18 17 13 64
Other Activities (44) (24) (32) (13) (113)
Total 285 261 250 257 1,053
14

15. Appendix
15
15

16. Reg G: Reconciliation of Diluted Adjusted EPS
Table 6
Adjusted Earnings Per Share - Reconciliation of a Non-U.S. GAAP Measure
Q1 2006 Q1 2005
(in $ millions, except per share data) Adjusted Adjusted
Earnings from continuing operations
before tax and minority interests 161 13
Non-GAAP Adjustments:
Special charges and other adjustments * 48
10
Refinancing costs 102
-
Adjusted earnings from continuing operations
163
before tax and minority interests 171
Income tax provision on adjusted earnings ** (42)
(48)
Minority interests (25)
-
Earnings from discontinued operations 10
1
Preferred dividends (2)
(3)
Adjusted net earnings available to common shareholders 121 104
Add back: Preferred dividends 2
3
Adjusted net earnings for diluted adjusted EPS 124 106
Diluted shares (millions)
Weighted average shares outstanding 158.5
158.6
Assumed conversion of Preferred Shares 12.0
12.0
Assumed conversion of stock options 0.4
0.9
Total diluted shares 170.9
171.5
Adjusted EPS from continuing operations 0.72 0.56
Earnings per common share from discontinued operations 0.06
0.00
Adjusted EPS 0.72 0.62
* See Table 7 fo r details
** The effective tax rate applicable to adjusted earnings fro m co ntinuing o peratio ns befo re tax and mino rity interests is 28% in 2006 and 25%
in 2005.
1616

17. Reg G: Reconciliation of Net Debt
Table 5
Net Debt - Reconcilation of a Non-U.S. GAAP Measure
March 31 Dec 31
(in $ millions) 2006 2005
Short-term borrowings and current
installments of long-term debt - third party and affiliates 155
212
Plus: Long-term debt 3,282
3,306
Total debt 3,518 3,437
Less: Cash and cash equivalents 390
312
Net Debt 3,206 3,047
1717

18. Reg G: Reconciliation of Special Charges
Table 7
Reconciliation of Special Charges to Total Special Charges and Other
Adjustments
Special Charges:
(in $ millions) Q1 2006 Q1 2005
Employee termination benefits 2
2
Plant/office closures 1
(2)
Total restructuring - 3
Plumbing actions (1) -
Other 35 *
1
-
Total 38
Other Adjustments: **
(in $ millions) Q1 2006 Q1 2005
Celanese Germany restructuring 10 -
Advisor monitoring fee 10
-
10 10
Total
10 48
Total special charges and other adjustments
* Termination of advisor monitoring fee
** These items are included in net earnings (loss) but not included in special charges.
1818

19. Reg G: Reconciliation of Operating EBITDA
Table 1
Segment Data and Reconciliation of Operating Profit (Loss) to Operating EBITDA -
a Non-U.S. GAAP Measure. *
(in $ millions) Q1 2006 Q1 2005
Net Sales
Chem ical Products 1,044
1,169
Technical Polymers Ticona 239
231
Acetate Products 165
167
Performance Products 47
49
Other Activities 12
61
Intersegment elim inations (29)
(25)
Total 1,652 1,478
Operating Profit (Loss)
Chem ical Products 177
162
Technical Polymers Ticona 39
41
Acetate Products 10
23
Performance Products 13
17
Other Activities (83)
(46)
Total 197 156
Equity Earnings and Other Income/(Expense) **
Chem ical Products 14
9
Technical Polymers Ticona 12
14
Acetate Products - -
Performance Products - -
Other Activities 4 (8)
Total 27 18
Special Charges and Other Adjustments ***
Chem ical Products 1
(1)
Technical Polymers Ticona 1
(2)
Acetate Products 1
-
Performance Products -
-
Other Activities 45
13
Total 10 48
Depreciation and Amortization Expense
Chem ical Products 34
38
Technical Polymers Ticona 15
16
Acetate Products 9
7
Performance Products 3
4
Other Activities 2
5
Total 70 63
Operating EBITDA
Chem ical Products 226
208
Technical Polymers Ticona 67
69
Acetate Products 20
30
Performance Products 16
21
Other Activities (44)
(24)
Total 304 285
* Other Activities primarily includes corporate selling, general and administrative expenses
and the results from AT Plastics and captive insurance companies.
** Includes equity earnings from affiliates and other income/(expense), which is primarily dividends
from cost investments.
*** Excludes adjustments to minority interest, net interest, taxes, depreciation and amortization.
1919

20. 2005 Operating EBITDA by Segment
1st Qtr 2nd Qtr 3rd Qtr 4th Qtr
in $ millions Full Year
Chemical Products 226 191 198 197 812
Technical Polymers 67 55 50 32 204
Ticona
Acetate Products 20 21 17 28 86
Performance Products 16 18 17 13 64
Other Activities (44) (24) (32) (13) (113)
Total 285 261 250 257 1,053
20

21. Reg G: Reconciliation of 2005 Operating EBITDA
Q1 2006 Q1 2005 Q2 2005 Q3 2005 Q4 2005 FY 2005
Net Sales
Chemical Products 1,044 1,085 1,100 1,107 4,336
Technical Polymers Ticona 239 223 212 213 887
Acetate Products 165 172 162 160 659
Performance Products 47 47 46 40 180
Other Activities 12 8 55 69 144
Intersegment eliminations (29) (29) (40) (38) (136)
1652 1,478 1,506 1,535 1,551 6,070
Operating Profit (Loss)
Chemical Products 177 155 98 143 573
Technical Polymers Ticona 39 5 18 (2) 60
Acetate Products 10 10 5 42 67
Performance Products 13 15 13 10 51
Other Activities (83) (33) (41) (33) (190)
197 156 152 93 160 561
Equity Earnings and Other Income/(Expense) **
Chemical Products 14 (6) 36 36 80
Technical Polymers Ticona 12 16 15 10 53
Acetate Products - 2 - 2 4
Performance Products - - (1) - (1)
Other Activities (8) 17 (3) 7 13
165 18 29 47 55 149
Special Charges and Other Adjustments ***
Chemical Products 1 3 19 (31) (8)
Technical Polymers Ticona 1 20 4 6 31
Acetate Products 1 - 9 (24) (14)
Performance Products - - 1 - 1
Other Activities 45 (10) 7 5 47
10 48 13 40 (44) 57
Depreciation and Amortization Expense
Chemical Products 34 39 45 49 167
Technical Polymers Ticona 15 14 13 18 60
Acetate Products 9 9 3 8 29
Performance Products 3 3 4 3 13
2 2 5 17
Other Activities 8
70 63 67 70 86 286
Operating EBITDA
Chemical Products 226 191 198 197 812
Technical Polymers Ticona 67 55 50 32 204
Acetate Products 20 21 17 28 86
Performance Products 16 18 17 13 64
Other Activities (44) (24) (32) (13) (113)
304 285 261 250 257 1,053
2121