16 December 2025

Grainger plc ("Grainger" or the "Company")

Publication of the Notice of AGM 2026

Following the publication of our 2025 Annual Report and Accounts on our website on 20 November 2025, we have today published our Notice of AGM.

Copies of the following documents have been published and despatched to shareholders and are also available to view on our website graingerplc.co.uk:

-   Notice of AGM 2025

-   Proxy Card

-  Letter to shareholders regarding the 2025 Annual Report and Accounts and the AGM 2026 arrangements

The Notice of AGM includes details of how shareholders can vote, including information about electronic voting. The Notice of AGM includes a resolution seeking approval to renew and continue to operate the Grainger 2017 Long-Term Incentive Plan (LTIP).

The Notice of AGM 2026, proxy card, shareholder letter and the proposed revised LTIP will all be submitted to the National Storage Mechanism and will shortly be available for inspection at:  data.fca.org.uk/#/nsm/nationalstoragemechanism.

The 2025 Annual Report and Accounts was submitted to the National Storage Mechanism on 20 November 2025.

The contents of these websites and any websites accessible from hyperlinks on these websites are not incorporated into and do not form part of this announcement. The person responsible for making this announcement on behalf of the Company is Sapna Bedi FitzGerald, Company Secretary.

For further information, please contact:

Sapna B FitzGerald

Company Secretary

sfitzgerald@graingerplc.co.uk.