Halma PLC

Proxy Solicitation & Information Statement • Jun 24, 2025

The Chair of Halma plc invites you to attend the Annual General Meeting of the Company to be held at The King's Fund, No. 11 Cavendish Square, London, W1G 0AN on 24 July 2025 at 12.30 pm.

Shareholder Reference Number

Please detach this portion before posting this proxy form.

Form of Proxy - Annual General Meeting to be held on 24 July 2025

@	Cast your Proxy onlineIt's fast, easy and secure! www.investorcentre.co.uk/eproxy You will be asked to enter the Control Number, Shareholder Reference Number (SRN) and PIN shown opposite and agree to certain terms and conditions.	Control Number: 920876 SRN: PIN:
View the Annual Report and Accounts 2025 and the Notice of Meeting online: www.halma.com
Register at www.investorcentre.co.uk - elect for electronic communications & manage your shareholding online!
To be effective, all proxy appointments must be lodged with the Company's registrars at:

Computershare Investor Services PLC, The Pavilions, Bridgwater Road, Bristol BS99 6ZY by 22 July 2025 at 12.30 pm.

Explanatory Notes:

• 1. Every holder has the right to appoint some other person(s) of their choice, who need not be a shareholder, as their proxy to exercise all or any of their rights, to attend, speak and vote on their behalf at the meeting. If you wish to appoint a person other than the Chair, please insert the name of your chosen proxy holder in the space provided (see reverse). If the proxy is being appointed in relation to less than your full voting entitlement, please enter in the box next to the proxy holder's name (see reverse) the number of shares in relation to which they are authorised to act as your proxy. If returned without an indication as to how the proxy shall vote on any particular matter, the proxy will exercise their discretion as to whether, and if so how, they vote.
• 2. To appoint more than one proxy, an additional proxy form(s) may be obtained by contacting the Registrar's helpline on 0370 707 1046 or you may photocopy this form. Please indicate in the box next to the proxy holder's name (see reverse) the number of shares in relation to which they are authorised to act as your proxy. Please also indicate by marking the box provided if the proxy instruction is one of multiple instructions being given. All forms must be signed and should be returned together in the same envelope.
• 3. The 'Vote Withheld' option overleaf is provided to enable you to abstain on any particular resolution. However, it should be noted that a 'Vote Withheld' is not a vote in law and will not be counted in the calculation of the proportion of the votes 'For' and 'Against' a resolution.
• 4. In the case of joint holders the signature on this card by any one holder will suffice but the vote of the first named on the register of members of the Company will be accepted to the exclusion of the votes of the other joint holders.
• 5. Pursuant to Regulation 41 of the Uncertificated Securities Regulations 2001, entitlement to attend and vote at the meeting and the number of votes which may be cast thereat will be determined by reference to the Register of Members of the Company at close of business on the day which is two days before the day of the meeting. Changes to entries on the Register of Members after that time shall be disregarded in determining the rights of any person to attend and vote at the meeting.
• 6. To give an instruction to a proxy (whether previously appointed or otherwise) via a designated voting platform, any such messages must be received by the issuer's agent prior to the specified deadline within the relevant system. For this purpose, the time of receipt will be taken to be the time (as determined by the timestamp generated by the relevant designated voting platform) from which the issuer's agent is able to retrieve the message. The Company may treat as invalid a proxy appointment sent via a designated voting platform in the circumstances set out in Regulation 35 (5)(a) of the Uncertificated Securities Regulations 2001.
• 7. The above is how your address appears on the Register of Members. If this information is incorrect please ring the Registrar's helpline on 0370 707 1046 to request a change of address form or go to www.investorcentre.co.uk to use the online Investor Centre service.
• 8. Any alterations made to this form should be initialled.

Kindly Note: This form is issued only to the addressee(s) and is specific to the All Named Holders unique designated account printed hereon. This personalised form is not transferable between different: (i) account holders; or (ii) uniquely designated accounts. The Company and Computershare Investor Services PLC accept no liability for any instruction that does not comply with these conditions.

All Named Holders

Important: Please bring this card with you to the meeting and present it at the Shareholder registration desk.

Directions

Nearest underground station

Oxford Circus (Bakerloo, Central and Victoria lines) Exit 4.

Bus routes

Please check Google Maps, Citymapper or TFL Travel to find the best route.

Parking

Cavendish Square Car Park, Harley Street Car Park (enter from Chandos Street).

Form of Proxy

Please complete this box only if you wish to appoint a third party proxy other than the Chair. Please leave this box blank if you want to select the Chair. Do not insert your own name(s).

I/We hereby appoint the Chair of the Meeting OR the person indicated in the box above as my/our proxy to attend, speak and vote in respect of my/our full voting entitlement* on my/our behalf at the Annual General Meeting of Halma plc to be held at The King's Fund, No. 11 Cavendish Square, London W1G 0AN on 24 July 2025 at 12.30 pm, and at any adjourned meeting.

*

Vote For Against Withheld 12. To re‑elect Sharmila Nebhrajani OBE as a Director of the Company. 13. To re-elect Liam Condon as a Director of the Company. 14. To re-elect Giles Kerr as a Director of the Company. 15. To re-appoint PricewaterhouseCoopers LLP as Auditor. 16. To authorise the Directors to determine the remuneration of the Auditor. 17. Authority to allot shares. 18. Authority to make political donations. 19. Disapplication of pre-emption rights. 20. Additional disapplication of pre-emption rights. 21. Authority to purchase own shares. 22. Notice of general meetings. Ordinary Resolutions Vote For Against Withheld 1. To receive the Accounts and the Reports of the Directors (including the Strategic Report) and the Auditor for the year ended 31 March 2025. 2. To declare a final dividend. 3. To approve the Remuneration Report. 4. To elect Hudson La Force as a Director of the Company. 5. To elect Barbara Thoralfsson as a Director of the Company. 6. To re‑elect Dame Louise Makin as a Director of the Company. 7. To re‑elect Marc Ronchetti as a Director of the Company. 8. To re‑elect Carole Cran as a Director of the Company. 9. To re‑elect Jennifer Ward as a Director of the Company. 10. To re‑elect Jo Harlow as a Director of the Company. 11. To re‑elect Dharmash Mistry as a Director of the Company. * For the appointment of more than one proxy, please refer to Explanatory Note 2 (see front). Please mark here to indicate that this proxy appointment is one of multiple appointments being made. Please use a black pen. Mark with an ^{X X} inside the box as shown in this example. Special Resolutions

I/We instruct my/our proxy as indicated on this form. Unless otherwise instructed the proxy may vote as he or she sees fit or abstain in relation to any business of the meeting. Signature Date

In the case of a corporation, this proxy must be given under its common seal or be signed on its behalf by an attorney or officer duly authorised, stating their capacity (e.g. director, secretary).

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