Notice of Annual General Meeting

Investor and Analysts

T: 01753 494900

E: [email protected]

Media Relations

T: 01784 843000

E: [email protected]

Notice of Availability

Further to the digital release of the Company's 2025 Annual Report and Accounts on 19 February 2026, the Company confirms that the Notice of Annual General Meeting (AGM) will shortly be posted to shareholders who have elected to receive hard copies. The Notice of AGM has also been made available to shareholders today on the Company's website at centrica.com/agm26.

The 2025 Annual Report and Accounts continue to be available to view at centrica.com/ar25.

In accordance with Listing Rule 6.4.1, copies of the Notice of AGM and Proxy Form have been submitted to the Financial Conduct Authority and will shortly be available for inspection at the National Storage Mechanism (NSM) at https://data.fca.org.uk/#/nsm/nationalstoragemechanism.

Annual General Meeting Arrangements

The AGM will take place at 10.30 am on Thursday 7 May 2026 at The Parkgate Hotel, Westgate Street, Cardiff CF10 1DA.

Shareholders will be able to attend and participate in the AGM in person or remotely via a live webcast facility. Shareholders can exercise their votes by submitting their Proxy Forms either electronically or by post. Full details are available in the Notice of AGM.

Shareholders intending to attend the AGM in person are encouraged to check Centrica's website before finalising any travel arrangements for the latest information and in case of any update or changes to the plans for the AGM.