On May 13, 2024, Celanese Corporation (the “Company”) held its 2024 Annual Meeting of Shareholders (the “2024 Annual Meeting”) virtually at www.virtualshareholdermeeting.com/CE2024 and the Company’s shareholders approved an amendment to Article IX of the Company’s Second Amended and Restated Certificate of Incorporation, as amended (the “Restated Certificate”), to add language exculpating certain officers of the Company from certain liabilities and extending to our officers a right to mandatory indemnification. The amendment to the Certificate is more fully described in the Company’s definitive proxy statement filed with the Securities and Exchange Commission on March 21, 2024, in connection with the 2024 Annual Meeting (the “Proxy Statement”). The full text of the amendments to the Certificate is attached as Exhibit 3.1 and is incorporated herein by reference.

The amendment to the Restated Certificate became effective upon the Company’s filing of a Certificate of Amendment to the Restated Certificate with the Secretary of State of the State of Delaware on May 15, 2024.