Weir Group Inc. — Proxy Solicitation & Information Statement 2026

Mar 23, 2026

UH

Computershare

All Correspondence to:
Computershare Investor Services PLC
The Pavilions, Bridgwater Road,
Bristol, BS99 6ZY

Form of Proxy - Annual General Meeting to be held on 30 April 2026 at 2.30 pm.

Cast your Proxy online...It'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: 921266
SRN:
PIN:

View the Annual Report and Notice of Annual General Meeting online: www.global.weir/investors/shareholder-information/agm

You are advised to read the Notice of AGM in its entirety. Please note that this notification is not a full summary of that document and should not be regarded as a substitute for reading it.

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 28 April 2026 at 2.30 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 at the meeting. If you wish to appoint a person other than the Chair of the meeting, 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 (or if this proxy form has been issued in respect of a designated account for a shareholder, 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 1402 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. 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 6.30 pm on the day which is two working 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.

5. To appoint one or more proxies or 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.
6. 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 1402 to request a change of address form or go to www.investorcentre.co.uk to use the online Investor Centre service.
7. Any alterations made to this form should be initialled.
8. The completion and return of this form will not preclude a member from attending the meeting and voting in person.

Kindly Note: This form is issued only to the addressee(s) and is specific to the 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

197997_252860_RUN_CNS/000001/000001/SG601/II

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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).

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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 THE WEIR GROUP PLC to be held at the Company's Head Office, 1 West Regent Street, Glasgow G2 1RW on 30 April 2026 at 2.30 pm, and at any adjourned meeting.

• 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 inside the box as shown in this example. ☑

Ordinary Resolutions	For	Against	Vote Withheld
1. That the audited financial statements of the Company for the year ended 31 December 2025 and the Reports of the Directors and Auditors of the Company thereon, be received.	☐	☐	☐
2. That the Directors' Remuneration Report contained on pages 127 to 150 of the Annual Report and Financial Statements of the Company for the year ended 31 December 2025 be approved.	☐	☐	☐
3. That a final dividend for the year ended 31 December 2025 of 22.1 pence per ordinary share of 12.5 pence each in the capital of the Company, payable on 29 May 2026 to those Shareholders on the register of members of the Company at the close of business on 1 May 2026 be declared.	☐	☐	☐
4. That Barbara Jeremiah be re-elected as a Director of the Company.	☐	☐	☐
5. That Jon Stanton be re-elected as a Director of the Company.	☐	☐	☐
6. That Brian Puffer be re-elected as a Director of the Company.	☐	☐	☐
7. That Dame Nicola Brewer be re-elected as a Director of the Company.	☐	☐	☐
8. That Andrew (Andy) Agg be re-elected as a Director of the Company.	☐	☐	☐
9. That Nicholas (Nick) Anderson be re-elected as a Director of the Company.	☐	☐	☐
10. That Penelope (Penny) Freer be re-elected as a Director of the Company.	☐	☐	☐
For	Against	Vote Withheld
---	---	---
11. That Tracey Kerr be re-elected as a Director of the Company.	☐	☐
12. That Bennetor (Ben) Magara be re-elected as a Director of the Company.	☐	☐
13. That Ernst & Young LLP be appointed as auditors of the Company to hold office from the conclusion of the Annual General Meeting until the conclusion of the next general meeting at which accounts are laid before the Company.	☐	☐
14. That the Company's Audit Committee be authorised to determine the remuneration of the auditors.	☐	☐
15. That the Directors be authorised to allot shares in the Company.	☐	☐
Special Resolutions	For	Against	Vote Withheld
---	---	---	---
16. That the Directors be authorised to partially disapply the statutory pre-emption provisions.	☐	☐	☐
17. That the Directors be authorised to partially disapply the statutory pre-emption provisions in connection with an acquisition or specified capital investment.	☐	☐	☐
18. That the Company be authorised to make market purchases of ordinary shares.	☐	☐	☐
19. That a general meeting of the Company, other than an Annual General Meeting, may be called on not less than 14 clear days' notice.	☐	☐	☐
Intention To Attend	For	Against	Vote Withheld
---	---	---	---
Please indicate if you intend to attend the AGM.	☐	☐	☐

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

Signature

Date

DD/MM/YY

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

H776

WEP

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