UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): March 4, 2026 (February 17 27, 2026)

CELANESE CORPORATION

(Exact name of registrant as specified in its charter)

Delaware

001-32410

98-0420726

(State or other jurisdiction
of incorporation)

(Commission File
Number)

(IRS Employer
Identification No.)

222 West Las Colinas Blvd. Suite 900N, Irving, TX 75039

(Address of Principal Executive Offices) (Zip Code)

Registrant's telephone number, including area code: (972) 443-4000


N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of Each Class	Trading Symbol(s)	Name of Each Exchange on Which Registered
Common Stock, par value $0.0001 per share	CE	The New York Stock Exchange
4.777% Senior Notes due 2026	CE /26A	The New York Stock Exchange
2.125% Senior Notes due 2027	CE /27	The New York Stock Exchange
0.625% Senior Notes due 2028	CE /28	The New York Stock Exchange
5.337% Senior Notes due 2029	CE /29A	The New York Stock Exchange
5.000% Senior Notes due 2031	CE /31	The New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

1Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

~~Item 7~~(b) On February 27, 2026, Timothy Go resigned from the Board of Directors (the “Board”) of Celanese Corporation (the “Company”), effective as of such date.01 ~~Regulation FD~~Mr. ~~Disclosure~~Go’s resignation is not the result of any disagreement with the Company on any matter related to the Company’s operations, policies, or practices. The Board and the Company are grateful for Mr. Go’s service as a Director.

On February 18, 2026, Scott A. Richardson, President, Chief Executive Officer and Director of Celanese Corporation (the "Company"), will make a presentation to investors and analysts via a webcast hosted by the Company at 9:00 a.m. ET (8:00 a.m. CT) regarding the Company's financial results for its fourth quarter and full year 2025. The webcast, press release, prepared remarks from management and a slide presentation may be accessed on our website at investors.celanese.com under News & Events / Events Calendar. A copy of the prepared remarks and a copy of the slide presentation posted for the webcast are attached to this Current Report on Form 8-K ("Current Report") as Exhibit 99.1(a) and Exhibit 99.1(b), respectively, and are incorporated herein solely for purposes of this Item 7.01 disclosure. During the webcast, management may make, and management's prepared remarks and the attached slide presentation contain, references to certain Non-US GAAP financial measures. Non-US GAAP financial measures appearing in management's prepared remarks are defined and reconciled to the most comparable US GAAP financial measure in our Non-US GAAP Financial Measures and Supplemental Information document furnished with this Current Report as Exhibit 99.2 (and available on our website) and incorporated herein solely for purposes of this Item 7.01 disclosure.

Item 9.01 Financial Statements and Exhibits

(d) The following exhibits are being furnished herewith:

ExhibitNumber
						Description
99.1(a)						Prepared Remarks from Management dated February 17, 2026*
99.1(b)						Slide Presentation dated February 17, 2026*
99.2						Non-US GAAP Financial Measures and Supplemental Information dated February 17, 2026*
104						Cover Page Interactive Data File (the cover page XBRL tags are embedded within the inline XBRL document contained in Exhibit 101)

* In connection with the disclosure set forth in Item 7.01, the information in this Current Report, including the exhibits attached hereto, is being furnished and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of such section. The information in this Current Report, including the exhibits, shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any incorporation by reference language in any such filing. This Current Report will not be deemed an admission as to the materiality of any information in this Current Report that is required to be disclosed solely by Regulation FD.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

			CELANESE CORPORATION
			By:			/s/ ~~ASHLEY~~Ashley B. ~~DUFFIE~~Duffie
			Name:			Ashley B. Duffie
			Title:			Senior Vice President, General Counsel and Corporate Secretary
			Date:			~~February~~March 174, 2026

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