DIAGEO PLC

With the support of the Company Secretary, an evaluation of the

Board's effectiveness, including that of its Committees and Directors,

was conducted from December 2024 to January 2025. This evaluation

aimed to assess how the Board and its Committees function against

current best practice corporate governance principles, specifically

referencing Principle L and Provisions 21, 22, and 23 of the Code.

This year's evaluation was internally managed through an online

questionnaire completed by all directors. The questionnaire was

designed to assess satisfaction levels with specific areas and allow

directors to express their views. The evaluation focused on directors'

views on three areas, being (i) Board composition, balance and

performance, (ii) Board and Committee topics, support and provision of

information and (iii) Committees' effectiveness and performance.

Responses were submitted to the Chair of the Board, while feedback

on Committee effectiveness was also provided to respective

Committee Chairs. The Senior Independent Director also held a

meeting with directors, excluding the Chair, in line with Code

requirements. The Chair, Senior Independent Director and the

Company Secretary discussed the feedback and, together with other

input including a general review of the ways of working and

composition of the Board and its Committees, drew up a proposed plan

and next steps or actions for further consideration by the Board.

The Board reviewed the results at its March 2025 meeting and agreed

on various actions for implementation. The Board remains committed

to annually reviewing its performance as well as that of its committees

and individual directors, with such evaluation being carried out by an

external facilitator every three years. The evaluation in fiscal 26 is

expected to be managed and facilitated internally.

The Chair has confirmed that the non-executive directors standing for

re-election at this year’s AGM continue to perform effectively, both

individually and collectively as a Board, and that each demonstrates

commitment to their roles.

The general feedback and actions for focus in the following year as

identified during the December 2024 evaluation are detailed in the

following table.