Smurfit West Regulatory News (SWR)

Smurfit Westrock plc

('Smurfit Westrock')

TOTAL VOTING RIGHTS

DUBLIN (May 01, 2026)

In accordance with DTR 5.6.1 of the UK's Financial Conduct Authority's Disclosure Guidance and Transparency Rules, Smurfit Westrock announces that:

As of 30 April 2026, Smurfit Westrock's issued share capital consists of 524,464,078 Ordinary Shares of nominal value $0.001 each. Smurfit Westrock does not hold any Ordinary Shares in treasury. Therefore, the total number of voting rights in Smurfit Westrock is 524,464,078.

The above figure may be used by shareholders as a denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, Smurfit Westrock under the UK's Financial Conduct Authority's Disclosure Guidance and Transparency Rules.

May 01, 2026

CONTACT:

Niall Keane

Group Company Secretary

+353 (0)1 202 7000