UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 14A
Proxy Statement Pursuant to Section
14(a) of the
Securities Exchange Act of 1934 (Amendment No. )
| ☑ | Filed by the Registrant | ☐ | Filed by a party other than the Registrant |
| CHECK THE APPROPRIATE BOX: | ||
| ☐ | Preliminary Proxy Statement | |
| ☐ | Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) | |
| ☐ | Definitive Proxy Statement | |
| ☑ | Definitive Additional Materials | |
| ☐ | Soliciting Material under §240.14a-12 | |

LyondellBasell Industries N.V.
(Name of Registrant as Specified In Its
Charter)
(Name of Person(s) Filing Proxy
Statement, if other than the Registrant)
| PAYMENT OF FILING FEE (CHECK ALL BOXES THAT APPLY): | ||
| ☑ | No fee required | |
| ☐ | Fee paid previously with preliminary materials | |
| ☐ | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11 | |
LyondellBasell announces internet availability of proxy materials for its 2026 annual general meeting of shareholders
HOUSTON and LONDON, April 10, 2026 (GLOBE NEWSWIRE) — LyondellBasell (NYSE: LYB) today announced the internet availability of proxy materials for its 2026 annual general meeting of shareholders to be held on Friday, May 22, 2026, at 8 a.m. Central European Summer Time.
The LYB annual report on Form 10-K for the year ended December 31, 2025, and proxy statement for its 2026 annual general meeting of shareholders have been filed with the U.S. Securities and Exchange Commission (SEC), and may be viewed on the LYB investor website at Investors.LyondellBasell.com by selecting "Financials," then "Annual Reports." Shareholders may obtain hard copies of these proxy materials at no charge by emailing [email protected] or writing to our offices at LyondellBasell Industries, 4th Floor, One Vine Street, London W1J 0AH, United Kingdom, Attention: Corporate Secretary.
Pursuant to the SEC Notice and Access rules, companies may satisfy their obligation to deliver proxy materials by delivering a Notice of Internet Availability of Proxy Materials (Notice) to shareholders, providing internet access to the proxy materials, and providing a printed set of proxy materials by mail to any shareholder who requests them. LYB has elected to take full advantage of these rules to minimize impact on the environment and to maximize cost savings relating to the printing of the proxy materials.
Shareholders of record as of the close of business on April 24, 2026, are entitled to vote at the annual meeting. Voting instructions for internet, telephone, mail and in-person options are provided in the proxy materials and on the Notice. LYB expects to begin mailing the Notice promptly after the April 24, 2026 record date and to complete that mailing within five business days.
ABOUT
LYONDELLBASELL
We are LyondellBasell (NYSE: LYB) — a leader in the global chemical industry creating solutions for everyday sustainable living. Through
advanced technology and focused investments, we are enabling a circular and low carbon economy. Across all we do, we aim to unlock value
for our customers, investors and society. As one of the world's largest producers of polymers and a leader in polyolefin technologies,
we develop, manufacture and market high-quality and innovative products for applications ranging from sustainable transportation and
food safety to clean water and quality healthcare. For more information, please visit www.LyondellBasell.com or follow @LyondellBasell
on LinkedIn.
Investor contact: David Kinney +1 713-309-7141
Media contact: Nick Facchin +1 713-309-4791