National Grid PLC — AGM Information 2025

May 29, 2025

Annual General Meeting 2025 (AGM) Information Card

11.00am on Wednesday 9 July 2025 The Ramphal Building, Warwick Conferences, The University of Warwick, Library Road, Coventry, CV4 7AL and via an electronic meeting platform

Scan here to view our Annual Report and Notice of Meeting

Publication of the Annual Report and Notice of 2025 AGM

Our Annual Report and Accounts 2024/25 (the 'Annual Report') and Notice of Meeting for the 2025 AGM (the 'Notice') are available on our website at nationalgrid.com/ investors/resources. The Notice sets out in full the resolutions for consideration by shareholders, together with explanatory notes and further information on the Directors standing for re-election.

Further details about the AGM arrangements are set out within the Notice.

How can I vote at the AGM?

Visit shareview.co.uk to submit your proxy voting instructions online. If you have not yet registered for a Shareview Portfolio, you can register at shareview.co.uk. To register you will need your Shareholder Reference Number (see below). You can attend the meeting in person or by the electronic meeting platform (the 'Lumi platform'). To be valid your vote must be received by 11.00am on Monday 7 July 2025.

CREST members should submit their vote via CREST by 11.00am on Monday 7 July 2025. If you are an institutional investor you may be able to appoint a proxy electronically via the Proxymity platform. Please refer to the Notice for further details.

Dividend

Shareholder Reference Number

Recommended 2024/25 final dividend: 30.88p Dividend payment date: 17 July 2025

Proxy Card

Annual General Meeting 2025 (AGM)

Please detach here

Vote by post: AGM 2025 If you do not have access to the internet and want to vote, you can do so by completing and returning this Proxy Card to arrive no later than 11.00am on Monday 7 July 2025.

Notes on how to complete this Proxy Card can be found overleaf.

The Board believes that resolutions 1-26 are in the best interests of shareholders as a whole and recommends that you vote in favour of each of the resolutions. Please indicate how you wish to vote by marking an X in black ink in the appropriate boxes below.

Resolution	For	Against	Vote withheld		Resolution	For	Against	Vote withheld
1 To receive the Annual Report and Accounts				14	To re-appoint Deloitte LLP as the Company's auditor
2 To declare a final dividend				15	To authorise the Audit & Risk Committee of the Board
3 To re-elect Paula Rosput Reynolds					to set the auditor's remuneration
4 To re-elect John Pettigrew				16	To approve the Directors' Remuneration Policy
5 To re-elect Andy Agg				17	To approve the Directors' Remuneration Report
6 To re-elect Jacqui Ferguson				18	To authorise the Company to make political donations
7 To re-elect Ian Livingston				19	To approve an increased borrowing limit
8 To re-elect Iain Mackay				20	To authorise the Directors to operate the Scrip Dividend Scheme
9 To re-elect Anne Robinson				21	To authorise capitalising reserves for the
10 To re-elect Earl Shipp					Scrip Dividend Scheme
11 To re-elect Jonathan Silver				22	To authorise the Directors to allot shares
12 To re-elect Tony Wood					23* To disapply pre-emption rights
13 To re-elect Martha Wyrsch					24* To disapply pre-emption rights for acquisitions
					25* To authorise the Company to purchase its own shares
					26* To authorise the Directors to hold general meetings on 14 clear days' notice
I/We hereby appoint the Chair of the AGM OR the following person					*Special Resolution
Name of proxy			Multiple proxies		Number of shares proxy appointed over
Please leave this box blank if you have selected the Chair of the AGM – do not insert your own name.					If left blank this proxy will be applied to your full voting entitlement.
as my/our proxy to attend, speak and vote as instructed above on my/our behalf at National Grid's 2025 AGM to be held at 11.00am on Wednesday 9 July 2025 and at any adjournment thereof.
To appoint multiple proxies, please tick the box above and read the notes overleaf.

Signature Date 5908-0054

Once completed, please return this Proxy Card to Equiniti.

OPC_2_2025

Notes: Completing your Proxy Card

• Whether or not you intend to attend the meeting in person or electronically, we strongly encourage you to appoint the Chair, as opposed to any other person, to act as your proxy to ensure your vote is counted (if, for instance, you or that other person are not able to attend the meeting in person or electronically). If the Chair is appointed as your proxy, they will vote in accordance with any instructions given to them; if they are given discretion as to how to vote, the Chair will vote in line with the Board's recommendation on all of the resolutions to be proposed at the AGM.
• To appoint someone other than the Chair as your proxy, write their name in the space provided. Please note, if you appoint someone other than the Chair as your proxy, you are responsible for ensuring that they attend the meeting and know how you wish to vote. If you or your proxy do not attend, your votes will not be cast.
• If your proxy is being appointed in relation to less than your full voting entitlement, please enter the number of shares in relation to which they are authorised to act as your proxy in the space provided. If left blank, your proxy will be deemed to be authorised in respect of your full voting entitlement (or if this Proxy Card has been issued in respect of a designated account for a shareholder, the full voting entitlement for that designated account).
• To appoint more than one proxy, you may photocopy this Proxy Card. Please indicate the proxy holder's name and the number of shares in relation to which they are authorised to act as your proxy (which, in aggregate, should not exceed the number of shares held by you). Please also indicate if the proxy instruction is one of multiple instructions being given by ticking the relevant box. All Proxy Cards must be signed and should be returned together in the same envelope. You must indicate the number of shares each proxy is authorised to act as your proxy on for your proxy to be valid.
• Place an X in black ink in the box where indicated showing how you wish to vote for each resolution. If you do not mark a resolution, your proxy can decide how to vote or decide to withhold your vote on that resolution and on any other business which may validly come before the AGM.
• Sign and date the Proxy Card in the spaces provided. Where shares are held in joint names, only one shareholder needs to sign. If the shareholder is a corporation, the form must be executed under its common seal or signed by an officer, attorney or other person duly authorised by the corporation.
• Any alterations to this Proxy Card should be initialled.
• Any power of attorney or other formal authority (if any) that has not already been lodged with Equiniti and under which the Proxy Card is signed, or a copy of such power or authority certified by a notary, must accompany the Proxy Card.
• Once completed, return the Proxy Card to Equiniti. To be valid, Proxy Cards must be received by 11.00am on Monday 7 July 2025.
• You can submit your proxy instructions electronically, rather than by returning your Proxy Card, at shareview.co.uk by no later than 11.00am on Monday 7 July 2025.
• Shareholders should note that while the number of votes withheld will be counted and reported with other votes, votes withheld have no legal effect and only votes for and against will be counted when deciding the outcome of polls.
• Only registered shareholders can appoint a proxy. If you have received this as a person nominated to receive copies of the Company's communications, the proxy rights do not apply to you. You may have a right under an agreement with the registered shareholder to be appointed (or have someone else appointed) as a proxy for the AGM and you are advised to contact them.
• Please note that proxy votes can only be submitted via paper Proxy Cards returned to the address stated, or electronically via shareview.co.uk, CREST or Proxymity.
• Proxy votes cannot be submitted via any other means of communication, unless expressly permitted by National Grid or Equiniti.