Smurfit Westrock Limited

Net Asset Value • Mar 7, 2025

National Storage Mechanism | Additional information

2024 Annual Report on Form 10-K

Smurfit Westrock plc

(the ‘Company’)

7 March 2025

2024 ANNUAL REPORT ON FORM 10-K

The Annual Report on Form 10-K for the fiscal year ended December 31, 2024 (the “2024 Annual Report”) has been published by the Company and was filed with the U.S. Securities and Exchange Commission (the “SEC”) today.

The 2024 Annual Report 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

Shareholders may request to receive a physical copy of the Company’s complete audited financial statements (as included in the 2024 Annual Report and prepared in accordance with U.S. generally accepted accounting principles, or U.S. GAAP) free of charge upon request to our Investor Relations team at Smurfit Westrock plc, Investor Relations, Beech Hill, Clonskeagh, Dublin 4, D04 N2R2, Ireland or via email [email protected]. The 2024 Annual Report is expected to be mailed to those shareholders who have requested a physical copy beginning on or about March 19, 2025.

Contact

Gillian Carson-Callan

Group SVP and Company Secretary

T: +353 1 202 7000

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Smurfit Westrock plc