Form 8-K

8-K — Celanese Corp

Accession: 0001104659-26-072110

Filed: 2026-06-10

Period: 2026-06-10

CIK: 0001306830

SIC: 2820 (PLASTIC MATERIAL, SYNTH RESIN/RUBBER, CELLULOS (NO GLASS))

Item: Other Events

Documents

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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): June 10, 2026 (June 10, 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

The New York Stock Exchange

4.777%

Senior Notes due 2026

/26A

The New

York Stock Exchange

2.125%

Senior Notes due 2027

/27

The New

York Stock Exchange

0.625%

Senior Notes due 2028

/28

The New

York Stock Exchange

5.337%

Senior Notes due 2029

/29A

The New

York Stock Exchange

5.000% Senior Notes due 2031

/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. ¨

Item 8.01 Other Events.

On June 10, 2026, Celanese US Holdings LLC, a wholly owned subsidiary

of Celanese Corporation, issued a notice of redemption for all of its outstanding 4.777% Senior Notes due July 19, 2026 (the “Notes”)

pursuant to the indenture governing the Notes. The redemption is expected to occur on June 25, 2026 (the “Redemption Date”).

The Notes are redeemable at a redemption price that will be equal to the sum of 100% of the principal amount of the Notes being redeemed

plus accrued and unpaid interest thereon to the Redemption Date. This Form 8-K does not constitute a notice of redemption for the Notes.

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 B. DUFFIE

Name:

Ashley

B. Duffie

Title:

Senior

Vice President, General Counsel and Corporate Secretary

Date:

June 10, 2026

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Entity Registrant Name

CELANESE

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Entity Central Index Key

0001306830

Entity Tax Identification Number

98-0420726

Entity Incorporation, State or Country Code

Entity Address, Address Line One

222

West Las Colinas Blvd. Suite 900N

Entity Address, City or Town

Irving

Entity Address, State or Province

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City Area Code

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Local Phone Number

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4.777% Senior Notes due 2026 [Member]

Title of 12(b) Security

4.777%

Senior Notes due 2026

Trading Symbol

/26A

Security Exchange Name

NYSE

2.125% Senior Notes due 2027 [Member]

Title of 12(b) Security

2.125%

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Trading Symbol

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Security Exchange Name

NYSE

0.625% Senior Notes due 2028 [Member]

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0.625%

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Security Exchange Name

NYSE

5.337% Senior Notes due 2029 [Member]

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Security Exchange Name

NYSE

5.000% Senior Notes due 2031 [Member]

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5.000% Senior Notes due 2031

Trading Symbol

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Security Exchange Name

NYSE

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