Investor Presentaiton

2 ADDITIONAL INFORMATION Important Additional Information This presentation has been prepared in connection with the combination (the "Combination") of Smurfit Kappa Group plc ("Smurfit Kappa") and WestRock Company ("WestRock") and reflects information which is accurate as at the date of this presentation. The information in this presentation is provided in summary form only and does not purport to be complete. This presentation does not contain all the information that is or may be material to investors or potential investors and should not be considered as advice or a recommendation to investors or potential investors in respect of the holding, purchasing or selling of securities or other financial instruments and does not take into account any investor's particular objectives, financial situation or needs. By attending the presentation or by reading the presentation slides you agree to be bound by the terms of this disclaimer. This presentation has been made to you solely for information purposes. This presentation may be amended and supplemented as Smurfit Kappa or WestRock see fit, and may not be relied upon for the purpose of entering into any transaction and should not be construed as, nor be relied on in connection with, any offer or invitation to purchase or subscribe for, underwrite or otherwise acquire, hold or dispose of any securities of Smurfit Kappa or WestRock, and shall not be regarded as a recommendation in relation to any such transaction whatsoever, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to appropriate registration or qualification under the securities laws of any such jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the U.S. Securities Act of 1933, as amended. The contents of this presentation should not be considered to be legal, tax, investment or other advice, and any investor or prospective investor considering the purchase or disposal of any securities of Smurfit Kappa or WestRock should consult with its own counsel and advisers as to all legal, tax, regulatory, financial and related matters concerning an investment in or a disposal of such securities and as to their suitability for such investor or prospective investor. The information in this presentation has not been independently verified. No representation or warranty, express or implied, is made as to the fairness, accuracy or completeness of the presentation and the information contained herein and no reliance should be placed on it. Information in this presentation (including market data and statistical information) has been obtained from various sources (including third party sources) and neither Smurfit Kappa nor WestRock guarantee the accuracy or completeness of such information. All projections, valuations and statistical analyses are provided for information purposes only. They may be based on subjective assessments and assumptions and may use one among alternative methodologies that produce different results and to the extent they are based on historical information, and they should not be relied upon as an accurate prediction of future performance. Neither this presentation nor any copy of it may be taken or transmitted directly or indirectly into or from any jurisdiction where to do so would constitute a violation of the relevant laws or regulations of such jurisdiction. Any failure to comply with this restriction may constitute a violation of such laws or regulations. Persons into whose possession the contents of this presentation or other information referred to herein come should inform themselves about, and observe, any restrictions in such laws or regulations. This presentation contains information which has been prepared for the purpose of complying with the applicable law and regulation of the United Kingdom, the United States and Ireland and information disclosed may not be the same as that which would have been disclosed if this information had been prepared in accordance with the laws and regulations of jurisdictions outside the United Kingdom, the United States or Ireland. Subject to the Market Abuse Regulation and the UK Financial Conduct Authority's (the "FCA") Disclosure Guidance and Transparency Rules and the UK Listing Rules, the delivery of this presentation shall not create any implication that there has been no change in the affairs of Smurfit Kappa, WestRock or the entity which will ultimately own the combined businesses of Smurfit Kappa and WestRock following the Combination ("Smurfit WestRock") since the date of this presentation or that the information in this presentation is correct as at any time subsequent to its date. Additional Information About the Combination and Where to Find It In connection with the Combination of Smurfit Kappa and WestRock, Smurfit WestRock will file with the U.S. Securities and Exchange Commission (the "SEC") a registration statement, which will include a proxy statement of WestRock that will also constitute a prospectus of Smurfit WestRock (the "proxy statement/prospectus"). Each of Smurfit Kappa, WestRock and Smurfit WestRock will also file other relevant documents in connection with the Combination. The definitive proxy statement/prospectus will be sent to the stockholders of WestRock. Smurfit Kappa will also publish a shareholder circular approved by the FCA, which will be sent to Smurfit Kappa's shareholders or otherwise made available in accordance with Smurfit Kappa's articles of association and the UK Listing Rules. Smurfit WestRock will publish a prospectus approved by the FCA, which will be made available in accordance with Rule 3.2 of the UK Prospectus Regulation Rules (the "UK listing prospectus"). This presentation is not a substitute for any registration statement, proxy statement/prospectus, UK listing prospectus or other document Smurfit Kappa, WestRock and/or Smurfit WestRock may file with the SEC or applicable securities regulators in the United Kingdom and Ireland in connection with the Combination. BEFORE MAKING ANY VOTING OR INVESTMENT DECISIONS, INVESTORS, STOCKHOLDERS AND SHAREHOLDERS OF SMURFIT KAPPA AND WESTROCK ARE URGED TO READ CAREFULLY AND IN THEIR ENTIRETY THE REGISTRATION STATEMENT, THE PROXY STATEMENT/PROSPECTUS, THE SHAREHOLDER CIRCULAR AND THE UK LISTING PROSPECTUS, AS APPLICABLE, AND ANY OTHER RELEVANT DOCUMENTS THAT ARE FILED OR WILL BE FILED WITH THE SEC OR APPLICABLE SECURITIES REGULATORS IN THE UNITED KINGDOM AND IRELAND, AS WELL AS ANY AMENDMENTS OR SUPPLEMENTS TO THESE DOCUMENTS, IN CONNECTION WITH THE COMBINATION WHEN THEY BECOME AVAILABLE, AS THEY CONTAIN OR WILL CONTAIN IMPORTANT INFORMATION ABOUT SMURFIT KAPPA, WESTROCK, SMURFIT WESTROCK, THE COMBINATION AND RELATED MATTERS. The registration statement and proxy statement/prospectus and other documents filed by Smurfit Kappa WestRock and Smurfit WestRock with the SEC, when filed, will be available free of charge at the SEC's website at www.sec.gov. In addition, investors and shareholders will be able to obtain free copies of the proxy statement/prospectus and other documents filed with the SEC by WestRock online at ir.westrock.com/ir-home/, upon written request delivered to 1000 Abernathy Road, Atlanta, Georgia or by calling (770) 448-2193, and will be able to obtain free copies of the registration statement, proxy statement/prospectus, shareholder circular, UK listing prospectus and other documents which will be filed with the SEC and applicable securities regulators in the United Kingdom and Ireland by Smurfit WestRock or Smurfit Kappa online at www.smurfitkappa.com/investors, upon written request delivered to Beech Hill, Clonskeagh, Dublin 4, Ireland or by calling +353 1 202 7000. The information included on, or accessible through, Smurfit Kappa's or WestRock's website is not incorporated by reference into this presentation. Participants in the Solicitation of Proxies This presentation is not a solicitation of proxies in connection with the Combination. However, under SEC rules, Smurfit Kappa, WestRock, Smurfit WestRock, and certain of their respective directors, executive officers and other members of the management and employees may be deemed to be participants in the solicitation of proxies in connection with the Combination. Information about WestRock's directors and executive officers may be found in its 2022 Annual Report on Form 10-K filed with the SEC on November 18, 2022, available at ir.westrock.com/ir-home/ and www.sec.gov. Information about Smurfit Kappa's directors and executive officers may be found in its 2022 Annual Report filed with applicable securities regulators in the United Kingdom on March 28, 2023, available on its website at www.smurfitkappa.com/investors. These documents can be obtained free of charge from the sources indicated above. Additional information regarding the interests of such potential participants in the solicitation of proxies in connection with the Combination will be included in the proxy statement/prospectus and other relevant materials filed with the SEC when they become available.