A Dark Vector Cognition product

Item 6. Exhibits

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Item 6. Exhibits

Exhibit NumberDescription of Exhibit
3.1Amended Constitution of Smurfit Westrock plc (incorporated by reference to Exhibit 3.1 of the Company’s Current Report on Form 8-K filed on July 8, 2024).
10.1†+Second Amendment to Purchasing and Servicing of Receivables, dated as of September 12, 2025, among WestRock Company, various WestRock Company subsidiaries, and Coöperatieve Rabobank, U.A.
22List of Guarantor Subsidiaries and Issuers of Guaranteed Securities (incorporated by reference to Exhibit 22 of the Company’s Quarterly Report on Form 10-Q filed on August 7, 2025).
31.1†Certification of the Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2†Certification of the Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32†*Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INSInline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.**
101.SCHInline XBRL Taxonomy Extension Schema.**
101.CALInline XBRL Taxonomy Extension Calculation Linkbase.**
101.DEFInline XBRL Taxonomy Extension Definition Document.**
101.LABInline XBRL Taxonomy Extension Label Linkbase.**
101.PREInline XBRL Taxonomy Extension Presentation Linkbase.**
104Cover Page Interactive Data File––the cover page interactive data file does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.

†Filed or furnished herewith

*The certification furnished in Exhibit 32 hereto is deemed to accompany this Quarterly Report on Form 10-Q and will not be

deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, except to the extent that the

Registrant specifically incorporates it by reference. Such certification will not be deemed to be incorporated by reference into

any filings under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, except to the

extent that the Registrant specifically incorporates it by reference.

**Submitted electronically herewith.

+Certain identified information has been excluded from this exhibit because it is not material and is of the type that the Company

treats as private or confidential.

SIGNATURES

Under the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed by the

undersigned thereunto duly authorized.

Smurfit Westrock plc
Dated: November 7, 2025/s/ Anthony Smurfit
Name:Anthony Smurfit
Title:President & Group Chief Executive Officer
(Principal Executive Officer)
Smurfit Westrock plc
Dated: November 7, 2025/s/ Ken Bowles
Name:Ken Bowles
Title:Executive Vice President & Group Chief Financial Officer
(Principal Financial Officer)

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