WestRock MWV, LLC Watch

from S-3ASR 102 pages Smurfit Westrock PLC, Smurfit Westrock Financing Designated Activity Company and Smurfit Kappa Treasury Unlimited Company, as Issuers or Guarantors, as Applicable, for Each Series of Notes From Time to Time, the Guarantors Named Herein, as Applicable, for Each Series of Notes From Time to Time, and Deutsche Bank Trust Company Americas, as Trustee, Paying Agent, Transfer Agent and Registrar Indenture Debt Securities Smurfit Westrock PLC Smurfit Westrock Financing Designated Activity Company Smurfit Kappa Treasury Unlimited Company

from S-4 5 pages Second Supplemental Indenture (This “Supplemental Indenture”) Dated as of November 21, 2024, Among (I) Smurfit Kappa Treasury Unlimited Company, a Public Unlimited Company Incorporated Under the Laws of Ireland (The “Issuer”); (II) Smurfit Westrock Financing Dac, a Designated Activity Company Incorporated Under the Laws of Ireland, as “New Guarantor” (The “New Guarantor”); and (III) Deutsche Bank Trust Company Americas, as Trustee (The “Trustee”)