Smurfit Westrock plc

Form 10-Q for the quarterly period ended March 31, 2025

Today Smurfit Westrock plc (the “Company”) filed its quarterly report on Form 10-Q for the quarterly period ended March 31, 2025, with the U.S Securities and Exchange Commission

(the “SEC”). The Form 10-Q is available to view on the SEC’s website at: https://www.sec.gov and the Company’s website at: https://investors.smurfitwestrock.com/financials/sec-filings/default.aspx

9 May 2025

CONTACT:

Gillian Carson-Callan

Group SVP Finance & Company Secretary

+353 (0)1 202 7000

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