SEVENTH SUPPLEMENTAL INDENTURE, dated as of March 5, 2024, among WILLIS NORTH AMERICA
INC., a Delaware corporation, as issuer (the Issuer) and WILLIS TOWERS WATSON PUBLIC LIMITED COMPANY, a company organized and existing under the laws of Ireland and parent company of the Issuer (without any of its consolidated
subsidiaries, Parent, and together with its consolidated subsidiaries, the Company), WILLIS TOWERS WATSON SUB HOLDINGS UNLIMITED COMPANY, a company organized and existing under the laws of Ireland, WILLIS
NETHERLANDS HOLDINGS B.V., a company organized under the laws of the Netherlands, WILLIS INVESTMENT UK HOLDINGS LIMITED, a company organized and existing under the laws of England and Wales, TA I LIMITED, a company organized and existing under the
laws of England and Wales, WILLIS TOWERS WATSON UK HOLDINGS LIMITED, a company organized and existing under the laws of England and Wales, TRINITY ACQUISITION PLC, a company organized and existing under the laws of England and Wales, and WILLIS
GROUP LIMITED, a company organized and existing under the laws of England, as guarantors (together with Parent, the Guarantors) and COMPUTERSHARE TRUST COMPANY, NATIONAL ASSOCIATION as successor to WELLS FARGO BANK, NATIONAL
ASSOCIATION, as trustee (the Trustee).
RECITALS OF THE ISSUER AND THE GUARANTORS
WHEREAS, the Issuer and the Guarantors have heretofore executed and delivered to the Trustee an Indenture, dated as of May 16, 2017 (as
amended or supplemented to the date hereof, the Original Indenture), providing for the issuance from time to time of its unsecured senior debentures, notes or other evidences of Indebtedness (the Securities), to
be issued in one or more series as provided in the Original Indenture;
WHEREAS, Section 9.01 of the Original Indenture provides that
the Issuer, each Guarantor and the Trustee may from time to time enter into one or more indentures supplemental thereto to establish a new series of Securities and add certain provisions to the Original Indenture;
WHEREAS, Sections 2.01 and 3.01 of the Original Indenture provide that the Issuer may enter into one or more indentures supplemental thereto
to establish the form and terms of a series of Securities issued pursuant to the Original Indenture;
WHEREAS, the Issuer, pursuant to the
foregoing authority, proposes in and by this Seventh Supplemental Indenture (this Supplemental Indenture and, together with the Original Indenture, the Indenture) to supplement the Original Indenture insofar as
it will apply only to the series of Securities to be known as the Issuers 5.900% Senior Notes due 2054 (the Notes) issued hereunder (and not to any other series);
WHEREAS, the Issuer and the Guarantors have duly authorized the execution and delivery of this Supplemental Indenture; and
WHEREAS, all things necessary have been done to make this Supplemental Indenture, the Notes and the Guarantees valid agreements of the Issuer
and the Guarantors, in accordance with their terms and the terms of the Original Indenture.