AGM Notice 2026

THIS DOCUMENT IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION. If you are in any doubt as to what action you should take, you are recommended to seek your own advice from an appropriate professional adviser who is authorised under the Financial Services and Markets Act 2000.

If you have sold or otherwise transferred all your shares in Harworth Group plc, please send this document and the accompanying documents to the purchaser or transferee or to the stockbroker, bank or other agent through whom the sale or transfer was effected for transmission to the purchaser or transferee.

HARWORTH GROUP PLC

Registered in England

Registered office: Advantage House, Poplar Way, Catcliffe, Rotherham, S60 5TR Registered number: 02649340

Notice of Annual General Meeting

Monday 18 May 2026 at 10.00 am.

To be held at Unit 1, Harworth Way, Catcliffe, Rotherham, S60 5GR.

This document should be read as a whole. Nevertheless, your attention is drawn to the letter from the Chair which commences on page 4 of this document and the recommendation that you vote in favour of the resolutions to be proposed at the Annual General Meeting referred to below. This document should be read in conjunction with the Notice of Annual General Meeting set out at the end of this document and the accompanying Proxy Form for use in connection with the meeting.

Notice of the Annual General Meeting of Harworth Group plc, to be held at 10.00 am on 18 May 2026, is set out at the end of this document. To be valid, a Proxy Form for use at the meeting should be completed in accordance with the instructions thereon, signed and returned so as to be received by the Company's Registrars, Equiniti Limited, Aspect House, Spencer Road, Lancing, West Sussex, BN99 6DA as soon as possible but in any event not later than 10.00 am on 14 May 2026. You may appoint a proxy in CREST by completing and transmitting a CREST proxy instruction to Equiniti Limited so that it is received no later than 10.00 am on 14 May 2026. Institutional investors may be able to use the Proxymity platform to appoint a proxy instruction to be received by Equiniti Limited by no later than 10.00 am on 14 May 2026. Completion of the Proxy Form will not preclude a Shareholder from attending and voting at the meeting in person. Further instructions relating to the Proxy Form are set out in the Notice of Annual General Meeting.

The contents of the Company's website or any website directly or indirectly linked to the Company's website do not form part of this document.

Contents

Page

Contents 2

Expected timetable of principal events 3

Letter from the Chair of the Board 4

Appendix 1: Directors' biographies 8

Definitions 10

Notice of Annual General Meeting 11

Map and directions to Unit 1, Harworth Way, Catcliffe,

Rotherham, S60 5GR 16

Expected timetable of principal events

Date of this document 14 April 2026

Record date for dividend 24 April 2026 Latest time and date for receipt of Proxy

Forms for the Annual General Meeting 10.00 am on 14 May 2026

Annual General Meeting 2026 10.00 am on 18 May 2026 Expected date for payment of dividend 22 May 2026

References to time in this document are to British Summer Time.

The timetable assumes that the Annual General Meeting is not adjourned as a result of there being no quorum, or for any other reason. If there is an adjournment, all subsequent dates and any other dates referred to in this document are likely to be later than those shown. If any of the above times and/or dates change, the revised times and/or dates will be notified to Shareholders by announcement on the Regulatory News Service.

Letter from the Chair of the Board

Dear Shareholder

Harworth Group plc (Incorporated and registered in England with no. 02649340)

Registered office

Advantage House

Poplar Way Catcliffe Rotherham S60 5TR

14 April 2025

The Annual General Meeting (the "AGM") of the Company will be held on 18 May 2026 at 10.00 am at Unit 1, Harworth Way, Catcliffe, Rotherham, S60 5GR. A map to help you with its location can be found on the last page of the Notice of AGM (the "Notice"). As you can see from the Notice there are several items of business to be considered at the AGM. The purpose of this letter is to explain this business.

Resolutions 1 to 17 (inclusive) are proposed as ordinary resolutions. This means that for each of those resolutions to be passed, more than half of the votes cast must be in favour of the resolution. Resolution 12 is an advisory vote only in accordance with the requirements of the Companies Act.

Resolutions 18 to 20 (inclusive) are proposed as special resolutions. This means that for each of those resolutions to be passed, at least three quarters of the votes cast must be in favour of the resolution.

1. - Adoption of Annual Report and Financial Statements

   The Directors must present the report of the Directors and the financial statements of the Company for the year ended 31 December 2025 to Shareholders at the AGM. The report of the Directors, the financial statements, and the independent auditors' report are contained within the Annual Report.

2. - Approval of Dividend

   In November 2025, the Board paid an interim dividend for the year ended 31 December 2025 of 0.538p per Ordinary Share. The Board is recommending a final dividend of 1.237p per Ordinary Share, to give a total dividend for the year ended 31 December 2025 of £5.8m or 1.775p per Ordinary Share. It is proposed that the final dividend be paid on 22 May 2026 to those Shareholders on the register of members at the close of business on 24 April 2026. The 2024 final dividend was 1.125p per share and the total 2024 dividend was 1.614p per share. The recommended 2025 final dividend and 2025 total dividend represent a 10% increase in line with our dividend policy. There is no change to the current dividend policy to continue to grow dividends by 10% each year.

3. - Election of Director

Resolution 3 proposes the election of Phil Redding, who joined the Company as an independent Non-Executive Director with effect from 10 September 2025. Phil's biographical details are contained in Appendix 1. The Board unanimously recommends his election.

The Articles of Association provide that one third of the Directors should offer themselves for re-election each year. However, best practice recommends that all Directors should offer themselves for re-election each year and accordingly all the Directors offer themselves for re-election. Their biographical details are shown in Appendix 1. The eight Directors seeking re-election are:

1. Alastair Lyons - Chair;

2. Lynda Shillaw - Chief Executive;

3. Katerina Patmore - Chief Financial Officer;

4. Angela Bromfield - Senior Independent Non-Executive Director;

5. Lisa Scenna - Independent Non-Executive Director;

6. Patrick O'Donnell Bourke - Independent Non-Executive Director;

7. Marzia Zafar - Independent Non-Executive Director;

8. Martyn Bowes - Non-Executive Director representing the Pension Protection Fund.

Each resolution for re-election will be taken as a separate vote.

The Nomination Committee has reviewed the effectiveness of those Directors who are offering themselves for re-election. Following that review, I confirm that the Board has determined that each of the Directors offering themselves for re-election is and continues to make a valuable and effective contribution to the Board for the long-term sustainable success of the Company. This is as a result of their combined experience in, and

perspectives gained from, the real estate and/or energy sector, and/or their financial, accounting and/or sustainability backgrounds. In addition, the Board considers that each Director has demonstrated the appropriate level of commitment to their role, that each of the Independent Non-Executive Directors is and continues to be fully independent in both character and judgement, and that there are no relationships or circumstances which are likely to affect their character or the exercise of their judgement.

During 2025, the Committee initiated a recruitment process for another new Non-Executive Director, mindful of the importance of maintaining regular Board refreshment while ensuring the right mix of skills, experience, independence and diversity. When appropriate, the Committee will make a recommendation to the Board, and when made, the appointment will be announced in accordance with UK Listing Rule 6.4.6R

The Directors' Remuneration Report gives details of the remuneration that was paid to the Directors for the year ended 31 December 2025 and will be paid to them for the year ending 31 December 2026, in accordance with the Company's Remuneration Policy.

The Company's auditors for the year ended 31 December 2025, Ernst & Young LLP, have audited those parts of the Directors' Remuneration Report required to be audited. The vote is advisory in nature in that payments made or promised to Directors will not have to be repaid, reduced or withheld in the event that the Resolution is not passed.

The auditors of a Company must be re-appointed at each AGM at which accounts are laid. Resolution 13 proposes the re-appointment of the Company's existing auditors, Ernst & Young LLP, until the conclusion of the annual general meeting of the Company to be held in 2027. Resolution 14 gives authority to the Directors to determine the auditors' remuneration.

The Company's Articles of Association provide that the ordinary remuneration of non-executive Directors shall not exceed in aggregate £500,000 per annum or such higher amount as the Company may from time to time determine by ordinary resolution.

As a result of annual increases in the level of fee for the Chair and other non-executive Directors in recent years, the fees paid to the Chair and other non-executive directors during the financial years ended 31 December 2023 to 31 December 2025 were inadvertently in excess of the aggregate limit of £500,000. The aggregate fees paid during the financial years ended 31 December 2023, 31 December 2024 and 31 December 2025 (excluding fees paid in connection with chairing a Board committee or acting as Senior Independent Director) were £533,572, £560,247 and

£544,675 respectively. Resolution 15 is proposed to approve an increase in the maximum fees to £1,000,000 and to ratify and approve payments to the Chair and the other non-executive Directors during the financial years ended 31 December 2023 to 31 December 2025 by way of fees for their services in excess of the amount specified in Article 146. The votes of the directors concerned, and of any persons connected to them, will be disregarded in determining whether Resolution 15 is passed.

Part 14 of the Companies Act restricts companies both from making political donations to: (i) political parties; (ii) other political organisations; and (iii) independent election candidates, and from incurring political expenditure without Shareholders' consent. The Company does not, and does not intend to, make donations to political parties, political organisations, or independent election candidates, nor does it incur, or intend to incur, any political expenditure. However, as the definitions used in the Companies Act are broad, it is possible that normal business activities such as sponsorship, subscriptions, payment of expenses, paid leave for employees fulfilling certain public duties, and support for bodies representing the business community in policy review or reform, which might not be thought to be political expenditure in the usual sense, could be caught.

Shareholder approval is being sought for this Resolution on a precautionary basis only to allow the Company and any company which, at any time during the period for which this Resolution has effect, is a subsidiary of the Company, to continue to support the community and put forward its views on or in relation to wider business and Government interests, without running the risk of being in breach of the Companies Act.

The Board is, therefore, seeking authority to make political donations to political parties and/or independent election candidates not exceeding

£50,000 in total, to make political donations to political organisations other than political parties not exceeding £50,000 in total, and to incur political expenditure not exceeding £50,000 in total. In line with the guidance issued by the Investment Association, it is proposed that this Resolution will be put to Shareholders annually. Therefore, the authority will be valid until the conclusion of the annual general meeting of the Company to be held in 2027 or, if earlier, 15 months from the date that this Resolution is passed.

The Directors may only allot shares or grant rights to subscribe for, or convert any security into, shares if authorised to do so by Shareholders. The authority conferred on the Directors at the 2025 annual general meeting under section 551 of the Companies Act to allot shares expires on the date of the forthcoming AGM. Accordingly, this Resolution seeks to grant a new authority under section 551 of the Companies Act to authorise the Directors to allot shares in the Company or grant rights to subscribe for, or convert any security into, shares in the Company and will expire at the conclusion of the next annual general meeting of the Company to be held in 2027 or, if earlier, 15 months from the date that this Resolution is passed. Paragraph (A) of Resolution 17 will, if passed, authorise the Directors to allot shares or grant rights to subscribe for, or to convert any security into, such shares in the Company up to a maximum nominal amount of £10,775,336. This amount represents 33 per cent. of the Company's existing issued ordinary share capital as at 13 April 2026 (being the latest practicable date prior to publication of this Notice). Paragraph (B) of Resolution 17 authorises the Directors to allot, including the shares referred to in (A), shares up to an aggregate nominal amount of £21,550,672 in connection with a pre-emptive offer to existing Shareholders by way of a rights issue (with exclusions to deal with fractional entitlements to shares and overseas Shareholders to whom the rights issue cannot be offered due to legal and practical problems). This amount represents 66 per cent. of the Company's existing issued ordinary share capital as at 13 April 2026 (being the latest practicable date prior to publication of this Notice). This is in accordance with the latest institutional guidelines published by the Investment Association.

Although the Directors have no present intention of exercising this authority, there can be no certainty that this authority will not need to be utilised. The Directors consider that it is in the best interests of the Company to have the authorities available so that they have the maximum flexibility permitted by institutional guidelines to allot shares or grant rights without the need for a general meeting, should they determine that it is appropriate to do so. The Directors intend to renew this authority annually.

Letter from the Chair of the Board

continued

Under section 561(1) of the Companies Act, if the Directors wish to allot Ordinary Shares, or grant rights to subscribe for, or convert securities into Ordinary Shares, or sell treasury shares for cash (other than pursuant to an employee share scheme), they must in the first instance offer them to existing Shareholders in proportion to their holdings. There may be occasions, however, when the Directors need the flexibility to finance business opportunities through the issue of Ordinary Shares without a pre-emptive offer to existing Shareholders. This cannot be done under the Companies Act unless Shareholders have first waived their pre-emption rights.

Resolution 18 asks the Shareholders to do this. Apart from rights issues or any other pre-emptive offer concerning equity securities, the authority contained in this Resolution will be limited to the issue of Ordinary Shares for cash up to an aggregate nominal value of £1,632,626 (which includes the sale on a non pre-emptive basis of any shares held in treasury), which represents approximately 5 per cent. of the Company's issued ordinary share capital as at 13 April 2026 (being the latest practicable date prior to the publication of this Notice). Resolution 18 also seeks a disapplication of the pre-emption rights on a rights issue so as to allow the Directors to make exclusions or such other arrangements as may be appropriate to resolve legal or practical problems which, for example, might arise with overseas Shareholders.

Shareholders should note that this Resolution also relates to treasury shares and will be proposed as a special resolution.

If given, the authority will expire at the conclusion of the next annual general meeting of the Company in 2027 or, if earlier, 15 months from the date that the Resolution is passed.

Although the Directors have no present intention of exercising this authority, there can be no certainty that this authority will not need to be utilised. The Directors intend to renew this authority annually.

This Resolution renews the authority granted at the 2025 annual general meeting which expires on the date of the forthcoming AGM. The Resolution authorises the Company to make market purchases of its own Ordinary Shares as permitted by the Companies Act. The authority limits the number of shares that could be purchased to a maximum of 32,652,533 Ordinary Shares, representing less than 10 per cent. of the issued share capital of the Company as at 13 April 2026 (being the last practicable date prior to the publication of this Notice) and sets minimum and maximum prices.

The Directors have no present intention of exercising the authority to purchase the Company's Ordinary Shares but will keep the matter under review, taking into account market conditions, the cash reserves of the Company, the Company's share price, appropriate gearing levels, other investment opportunities and the overall financial position of the Company. The authority will be exercised only if the Directors believe that to do so would result in an increase in earnings per share and would be likely to promote the success of the Company for the benefit of its Shareholders as a whole.

Any purchases of Ordinary Shares would be by means of market purchases through the London Stock Exchange. Any Ordinary Shares purchased under this authority may either be cancelled or held as treasury shares. Treasury shares may subsequently be cancelled, sold for cash or used to satisfy options issued to employees pursuant to employees' share schemes.

The authority will only be valid until the conclusion of the next annual general meeting of the Company in 2027 or, if earlier, 15 months from the date that this Resolution is passed.

As at 13 April 2026 (being the last practicable date prior to the publication of this Notice) the Company had the following awards outstanding under its share schemes:

• aggregate awards of up to 6,051,161 Ordinary Shares under the Harworth 2019 Restricted Share Plan; and

• aggregate awards of 1,281,225 Ordinary Shares under the Harworth Group plc Save As You Earn Scheme.

These awards represent in aggregate 2.25 per cent. of the Company's issued ordinary share capital as at that date. If the authority to purchase the Company's Ordinary Shares granted at the 2025 annual general meeting and the authority proposed to be granted pursuant to Resolution 19 were exercised in full, these awards would, assuming no further Ordinary Shares are issued after that date, represent 2.81 per cent. of the Company's issued ordinary share capital as at that date. This percentage would reduce to 2.50 per cent. if no further purchases were made under the authority granted at the 2025 annual general meeting, but the authority exercised pursuant to Resolution 19 was exercised in full. As at the close of business on 13 April 2026 (being the last practicable date prior to the publication of this Notice), the Company did not hold any shares in treasury and no warrants over the Ordinary Shares in the capital of the Company existed.

The Articles of Association of the Company allow it to call general meetings other than an annual general meeting on 14 clear days' notice without obtaining Shareholder approval. Changes made to the Companies Act by the Shareholders' Rights Regulations increase the notice period required for general meetings of the Company to 21 days unless Shareholders approve a shorter notice period, which cannot however be less than 14 clear days. In order to preserve its ability to call general meetings on 14 clear days' notice, Resolution 20 seeks such Shareholder approval. It is intended that the shorter notice period would not be used as a matter of routine but only where the flexibility is merited by the business of the meeting and is thought to be in the interests of Shareholders as a whole. The Company undertakes to meet the requirements for electronic voting under the Shareholders' Rights Regulations before calling a general meeting on 14 clear days' notice. If given, the approval will be effective until the Company's next annual general meeting, when it is intended that a similar resolution will be proposed.

The Company intends to continue giving 20 working days' notice for annual general meetings in accordance with the Financial Reporting Council's Guidance on the UK Corporate Governance Code.

Notice is hereby given that the Harworth Group plc Annual Report and Financial Statements for the year ended 31 December 2025 have been published on the Company's website https://www.harworthgroup.com/investors/reports-presentations/. The document can be accessed by going to the Company's home page, clicking on the Investors section of the website and then going to Reports and Presentations. If you have elected to receive Shareholder correspondence in hard copy, the Annual Report will accompany this Notice.

Should you wish to change your election at any time, or if you wish to request a hard copy of the Annual Report, you can do so by contacting our Registrars, Equiniti Limited, on +44 (0)371 384 2301. Lines are open 8.30 am to 5.30 pm, Monday to Friday (excluding public holidays in England and Wales). If calling from outside the UK, please ensure the country code is used.

The Board considers that all of the resolutions set out in the Notice are in the best interests of the Company and its Shareholders as a whole and recommends that you vote in favour of each of the Resolutions being put to the AGM, as the Directors intend to do in respect of their own beneficial shareholdings.

All Shareholders are encouraged to vote either in advance or on the day of the AGM. There are several ways to submit your voting instructions before the meeting, which are available from the publication date of this Notice:

1. By completing and returning a paper Proxy Form in accordance with the instructions printed on it. A Proxy Form is enclosed with this Notice if you have elected to receive hard copy documents, or is otherwise available from Equiniti on request by calling +44 (0)371 384 2301.

2. By registering your proxy vote electronically via our Registrar's website, https://www.shareview.co.uk.

3. Via the CREST or Proxymity system for those that are users of either platform.

Paper proxy votes and votes submitted electronically via the Shareview website, or via the CREST or Proxymity platforms, must be received by no later than 10.00 am on 14 May 2026. Completion of a Proxy Form or registering your vote electronically will not preclude you from attending and voting in person if you so wish.

You will be able to vote in one of three ways for each of the resolutions: "For", "Against" or "Vote Withheld". Please note that a "Vote Withheld" is not a vote in law and will not be counted in the calculation of votes "For" and "Against" each resolution.

Yours sincerely

CHAIR OF THE BOARD

Appendix 1: Directors' biographies

1. Phil Redding (Independent Non-Executive Director)

Phil joined the Board on 10 September 2025 and is a member of the Remuneration Committee.

Phil brings over 35 years of UK and European commercial real estate experience, with particular expertise in the high-growth industrial and logistics sector - a key strategic focus for Harworth. He has held senior leadership roles for more than a decade, most recently as Chief Executive Officer of Tritax Eurobox plc, where he oversaw its £557 million sale to Brookfield in 2024. Previously, Phil spent 25 years at SEGRO plc, including eight years as Chief Investment Officer, leading investment strategy and capital allocation across Europe.

Phil is also Chair of Schroder European Real Estate Investment Trust plc.

1. Alastair Lyons (Non-Executive Chair)

   Alastair was appointed as Non-Executive Chair on 7 March 2018 and has served for 8 years 1 months. He is also Chair of the Nomination Committee and a member of the Remuneration Committee.

   Alastair brings extensive board leadership and governance experience across financial services, real estate, infrastructure and insurance. He has chaired major organisations including Admiral Group, Serco, Towergate Insurance and Welsh Water, and currently chairs Vitality UK. His executive background includes senior roles at Abbey National and NatWest, providing strong expertise in strategy, risk management and stakeholder engagement. Awarded a CBE for services to social security, Alastair also offers valuable public sector insight.

2. Lynda Shillaw (Chief Executive)

   Lynda was appointed Chief Executive on 1 November 2020 and has served for 5 years 5 months. She is also a member of the Nomination Committee and Disclosure Committee.

   Lynda brings deep expertise in property investment, development and strategic leadership. She has held senior roles across real estate and financial services, including Group Property Director at Town Centre Securities and Divisional CEO, Property at Manchester Airports Group, where she oversaw major investment portfolios and large-scale developments such as Airport City. Her earlier career includes managing real estate portfolios for BT and Co-operative Group and leading Lloyds Banking Group's global real estate lending division. Lynda also offers strong governance experience through former Non-Executive roles at The Crown Estate and Vivid Housing Association and currently chairs the BPF Regional Policy Committee.

3. Katerina (Kitty) Patmore (Chief Financial Officer)

   Kitty was appointed Chief Financial Officer on 1 October 2019 and has served for 6 years 6 months. She is also a member of the Disclosure Committee.

   Kitty brings strong financial leadership and capital markets expertise to Harworth. She previously led finance and operations at Harwood Real Estate, and oversaw investor relations and capital markets including leading an LSE Main Market fundraising process. Her earlier career in banking included structured real estate finance at Barclays and mezzanine financing across the UK and Europe for DRC Capital. Kitty also contributes governance and audit expertise as a Non-Executive Director and Audit Committee Chair at LondonMetric Property plc.

4. Angela Bromfield (Senior Independent Director)

   Angela joined the Board on 1 April 2019 and has served for 7 years. She is also Senior Independent Director, Chair of the Remuneration Committee and a member of the Nomination Committee.

   Angela brings extensive board and governance experience, currently serving on the boards of Marshalls plc and C&C Group plc, where she chairs Remuneration Committees and contributes to ESG, Audit and Nomination oversight. She has a strong background in commercial strategy, marketing and communications, gained through senior roles at Morgan Sindall, Tarmac Group, Premier Farnell and ICI. Angela's experience spans manufacturing, distribution, construction and infrastructure, with a track record of driving transformation, customer focus and sustainable growth.

5. Lisa Scenna (Independent Non-Executive Director)

   Lisa joined the Board on 1 September 2020 and has served for 5 years 7 months. She is also a member of the Nomination Committee and Audit Committee.

   Lisa brings over 30 years of experience driving strategic and financial transformation across property, asset and funds management in both the UK and Australia and across listed and private entities. She has held senior leadership roles at Westfield, Stockland, Laing O'Rourke and Morgan Sindall. A qualified chartered accountant, Lisa combines deep strategic and financial insight with strong governance expertise, gained through multiple Non-Executive positions where she chairs and serves on Remuneration, Audit and Nomination Committees.

   Lisa is a Non-Executive Director of Genuit Group plc. She is also a Non-Executive Director of Cromwell Property Group and Ingenia Communities Group (both listed in Australia), as well as Dexus Capital Funds Management Limited (based in Australia).

6. Patrick O'Donnell Bourke (Independent Non-Executive Director)

   Patrick joined the Board on 3 November 2020 and has served for 5 years 5 months. He is also Chair of the Audit Committee.

   Patrick brings extensive financial and governance expertise from a career spanning infrastructure, utilities and investment. He is Chair of Pantheon Infrastructure plc and previously chaired its Audit & Risk Committee. His board experience includes Ecofin US Renewables Infrastructure Trust, Calisen and Affinity Water. Patrick's executive roles include Group Finance Director at John Laing Group and Viridian Group, where he later became Group Chief Executive. A qualified chartered accountant with a background in investment banking, Patrick offers deep knowledge of corporate finance, risk management and strategic oversight.

7. Marzia Zafar (Independent Non-Executive Director)

   Marzia joined the Board on 1 June 2022 and has served for 3 years 10 months.

   Marzia brings extensive expertise in sustainability and energy transition, developed over more than 20 years shaping policy and strategy for regulators, businesses and global organisations. She is Deputy Director for Strategy & Decarbonisation at Ofgem and previously held senior roles including Director of Sustainability & Policy at Kaluza Technologies and Director of Insights at the World Energy Council. Earlier in her career, Marzia spent 11 years with the California Public Utilities Commission, where she led policy and planning initiatives, including California's Energy Action Plan and smart meter deployment. Her experience in decarbonisation, regulatory frameworks and stakeholder engagement supports Harworth's commitment to sustainable growth.

8. Martyn Bowes (Non-Executive Director)

Martyn joined the Board on 24 March 2015 as a representative of the Pension Protection Fund, currently the Company's third largest shareholder, having previously been a Non-Executive Director of Harworth Estates Property Group Limited ("HEPGL") from 19 March 2013 in the same capacity. Martyn has served for 11 years (13 years including his appointment to HEPGL).

Martyn brings extensive financial and real estate expertise from a career spanning banking and property development. He was Managing Director of Real Estate Finance at Barclays Capital from 2001 to 2007, leading complex financing transactions across the sector. Since then, he has pursued a portfolio career, including co-leading the acquisition of Welbeck Land in 2012, where he now serves as Finance Director. Martyn also advises

Manhattan Loft Corporation and maintains interests in real estate and healthcare, offering Harworth strong insight into capital structuring, investment strategy and development finance.

Definitions

The following definitions apply throughout this document, unless the context requires otherwise:

(or any adjournment of it), Notice of which is set out at the end of this document

on 14 April 2026

number 02649340

Notice of Annual General Meeting

Notice is hereby given that the Annual General Meeting of Harworth Group plc (the "Company") will be held at Unit 1, Harworth Way, Catcliffe, Rotherham, S60 5GR on 18 May 2026 at 10.00 am for the following purposes:

To consider and, if thought fit, pass the following resolutions which will be proposed as ordinary resolutions:

1. To receive the Company's annual accounts together with the Directors' report and the auditors' report on those accounts for the year ended 31 December 2025.

2. To declare a final dividend for the year ended 31 December 2025 of 1.237 pence per Ordinary Share, payable on 22 May 2026 to those shareholders on the register of members at the close of business on 24 April 2026.

3. To elect Phil Redding as a Director of the Company.

4. To re-elect Alastair Lyons as a Director of the Company.

5. To re-elect Lynda Shillaw as a Director of the Company.

6. To re-elect Katerina Patmore as a Director of the Company.

7. To re-elect Angela Bromfield as a Director of the Company.

8. To re-elect Lisa Scenna as a Director of the Company.

9. To re-elect Patrick O'Donnell Bourke as a Director of the Company.

10. To re-elect Marzia Zafar as a Director of the Company

11. To re-elect Martyn Bowes as a Director of the Company.

12. To approve the Directors' Remuneration Report for the year ended 31 December 2025. This is an advisory vote in accordance with the Companies Act.

13. To resolve that Ernst & Young LLP be reappointed as the auditors of the Company to hold office until the conclusion of the next annual general meeting.

14. To authorise the Directors to agree the remuneration of the Company's auditors.

    SPECIAL BUSINESS

    To consider and, if thought fit, pass the following resolutions of which resolutions numbered 15 to 17 (inclusive) will be proposed as ordinary resolutions and resolutions numbered 18 to 20 (inclusive) will be proposed as special resolutions:

    Article 146 authority

15. To approve an increase in the maximum aggregate amount of ordinary remuneration payable to the non-executive Directors of the Company under Article 146 of the Company's Articles of Association from £500,000 per annum to £1,000,000 per annum with immediate effect and to ratify and approve the decisions of the current and former Directors of the Company to pay fees to the Chair and other non-executive Directors as set out in the Annual Report on Remuneration for the years ended 31 December 2023 to 31 December 2025, notwithstanding that the amount of such fees exceeded the limit provided for in Article 146.

    Political donations

16. That, in accordance with section 366 of the Companies Act, the Company and all companies that are its subsidiaries at any time during the period for which this resolution is effective are authorised, in aggregate, to:

    1. make political donations to political parties and/or independent election candidates not exceeding £50,000 in total;

    2. make political donations to political organisations other than political parties not exceeding £50,000 in total; and

    3. incur political expenditure not exceeding £50,000 in total,

       (as such terms are defined in sections 363 to 365 of the Companies Act) during the period commencing on the date of the passing of this resolution and finishing at the end of the next annual general meeting of the Company (or, if earlier, at the close of business on the date which is 15 months after the date of this resolution), provided that the aggregate amount of any such political donations made and political expenditure incurred by the Company and its subsidiaries pursuant to this authority shall not exceed £50,000.

       Notice of Annual General Meeting

       continued

       Authority to allot shares

17. a. That the Directors be generally and unconditionally authorised pursuant to section 551 of the Companies Act to:

    1. allot shares in the Company, and to grant rights to subscribe for, or to convert any security into, shares in the Company:

       1. up to an aggregate nominal amount of £10,775,336; and

       2. comprising equity securities (as defined in the Companies Act) up to an aggregate nominal amount of £21,550,672 (including within such limit any shares issued or rights granted under paragraph (A) above) in connection with an offer by way of a rights issue:

          1. to holders of Ordinary Shares in proportion (as nearly as may be practicable) to their existing holdings; and

          2. to people who are holders of other equity securities if this is required by the rights of those securities or, if the Directors consider it necessary, as permitted by the rights of those securities;

             and so that the Directors may impose any limits or restrictions and make any arrangements which they consider necessary or appropriate to deal with treasury shares, fractional entitlements, record dates, legal, regulatory or practical problems in, or under the laws of, any territory or any other matter;

             for a period expiring (unless previously renewed, varied or revoked by the Company in general meeting) at the end of the next annual general meeting of the Company (or, if earlier, at the close of business on the date which is 15 months after the date of this resolution); and

    2. make an offer or agreement which would or might require shares to be allotted, or rights to subscribe for or convert any security into shares to be granted, after expiry of this authority and the Directors may allot shares and grant rights in pursuance of that offer or agreement as if this authority had not expired.

    1. That, subject to paragraph (c) all existing authorities given to the Directors pursuant to section 551 of the Companies Act be revoked by this resolution.

    2. That paragraph (b) shall be without prejudice to the continuing authority of the Directors to allot shares, or grant rights to subscribe for or convert any security into shares, pursuant to an offer or agreement made by the Company before the expiry of the authority pursuant to which such offer or agreement was made.

    Disapplication of Pre-emption Rights

18. That, if Resolution 17 is passed, the Board be authorised to allot equity securities (as defined in the Companies Act) for cash under the authority given by that resolution and/or to sell Ordinary Shares held by the Company as treasury shares for cash as if section 561 of the Companies Act did not apply to any such allotment or sale, such authority to be limited:

    1. to allotments for rights issues and other pre-emptive issues; and

    2. to the allotment of equity securities or sale of treasury shares (otherwise than under paragraph a. above) up to a nominal amount of £1,632,626.

       such authority to expire at the end of the next annual general meeting of the Company (or, if earlier, at the close of business on the date which is 15 months after the date of this resolution) but, in each case, prior to its expiry the Company may make offers, and enter into agreements, which would, or might, require equity securities to be allotted (and treasury shares to be sold) after the authority expires and the Board may allot equity securities (and sell treasury shares) under any such offer or agreement as if the authority had not expired.

       Authority to purchase own shares

19. That, pursuant to section 701 of the Companies Act, the Company be and is hereby generally and unconditionally authorised to make market purchases (within the meaning of section 693(4) of the Companies Act) of its Ordinary Shares of 10 pence each in the capital of the Company, subject to the following conditions:

    1. the maximum number of Ordinary Shares authorised to be purchased is 32,652,533;

    2. the minimum price (exclusive of expenses) which may be paid for an Ordinary Share is 10 pence;

    3. the maximum price (exclusive of expenses) which may be paid for each Ordinary Share is the higher of: (i) an amount equal to 105 per cent. of the average of the middle market quotations of an Ordinary Share of the Company as derived from the London Stock Exchange Daily Official List for the 5 business days immediately preceding the day on which the Ordinary Share is contracted to be purchased; and (ii) an amount equal to the higher of the price of the last independent trade of an Ordinary Share and the highest current independent bid for an Ordinary Share as derived from the London Stock Exchange Trading System;

    4. this authority shall expire at the close of the next annual general meeting of the Company (or, if earlier, at the close of business on the date which is 15 months from the date of this resolution); and

    5. a contract to purchase shares under this authority may be made before the expiry of this authority, and concluded in whole or in part after the expiry of this authority.

       Notice of general meetings

20. That, subject to the Articles of Association of the Company as in force from time to time, a general meeting other than an annual general meeting may be called on not less than 14 clear days' notice.

By order of the Board

GENERAL COUNSEL AND COMPANY SECRETARY

Registered in England with No. 02649340

Registered Office: Advantage House Poplar Way Catcliffe Rotherham

S60 5TR

Notes

1. The right to attend and vote at the meeting is determined by reference to the Company's register of members. Only a member entered in the register of members at 6.30 pm on 14 May 2026 (or, if this meeting is adjourned, in the register of members at 6.30 pm. on the day two days prior to the adjourned meeting, excluding weekends and bank holidays) is entitled to attend and vote at the meeting and a member may vote in respect of the number of Ordinary Shares registered in the member's name at that time. Changes to the entries in the register of members after that time shall be disregarded in determining the rights of any person to attend and vote at the meeting.

   PROXIES

2. A shareholder of the Company may appoint one or more proxies (who need not be a member of the Company) to exercise all or any of their rights to attend and to speak and vote at a meeting of the Company provided that each proxy is appointed to exercise the rights attached to a different share or shares held by the shareholder. A shareholder may only appoint a proxy or proxies by:

   • completing and returning a Proxy Form, which is enclosed with this Notice if you have elected for hard copy documents, or is otherwise available from our Registrars, Equiniti, on request (see contact details below); or

   • electronically at https://www.shareview.co.uk by creating an online portfolio using your Shareholder Reference Number on the Proxy Form or Online Voting Card. If you have already signed up for a Shareview portfolio, you can login and register your vote; or

   • if you are a user of the CREST system (including CREST Personal Members), having an appropriate CREST message transmitted; or

   • if you are a user of the Proxymity system, having an appropriate Proxymity message transmitted.

     The Registrars can be contacted on the helpline on +44 (0)371 384 2301. Lines are open 8.30 am to 5.30 pm, Monday to Friday (excluding public holidays in England and Wales). If calling from outside the UK, please ensure the country code is used.

     IMPORTANT: In any event your Proxy Form must be received by the Company's Registrars no later than 10.00 am on 14 May 2026.

     To appoint a proxy or to give or amend an instruction to a previously appointed proxy via the CREST system, the CREST message must be received by the issuer's agent (ID number: RA 19) by 10.00 am on 14 May 2026. For this purpose, the time of receipt will be taken to be the time (as determined by the time stamp applied to the message by the CREST Applications Host) from which the issuer's agent is able to retrieve the message. After this time any change of instructions to a proxy appointed through CREST should be communicated to the proxy by other means. CREST Personal Members or other CREST sponsored members, and those CREST Members who have appointed voting service provider(s) should contact their CREST sponsor or voting service provider(s) for assistance with appointing proxies via CREST. For further information on CREST procedures, limitations and system timings, please refer to the CREST Manual which can be viewed at https://www.euroclear.com. The Company may treat a proxy appointment sent by CREST as invalid in the circumstances set out in Regulation 35(5Ka) of the Uncertificated Securities Regulations 2001.

     If you are an institutional investor you may be able to appoint a proxy electronically via the Proxymity platform, a process which has been agreed by the Company and approved by the Registrars. For further information regarding Proxymity, please go to www. proxymity.io. Your proxy must be lodged by 10.00 am on 14 May 2026 in order to be considered valid. Before you can appoint a proxy via this process you will need to have agreed to Proxymity's associated terms and conditions. It is important that you read these carefully as you will be bound by them and they will govern the electronic appointment of your proxy.

     Shareholders who would prefer to register the appointment of their proxy electronically via the internet can do so through the Shareview website, https://www.shareview.co.uk, by creating an online portfolio using your Shareholder Reference Number on the Proxy Form or Online Voting Card.

     Alternatively, shareholders who have already registered with Equiniti Registrars' online portfolio service, Shareview, can appoint their proxy electronically by logging on to their portfolio by using their usual user ID and password. Once logged in, simply click 'view' on the 'My Investments' page, click on the link to vote and then follow the on screen instructions. Full details and instructions are given on the website. Your proxy must be lodged by 10.00 am on 14 May 2026 in order to be considered valid.

     Further details of the appointment of proxies are given in the notes to the Proxy Form.

     CORPORATE REPRESENTATIVE

3. Any corporation which is a shareholder can ordinarily appoint one or more corporate representatives who may exercise on its behalf all of its powers as a member provided that where more than one corporate representative has been appointed they do not exercise their powers differently in relation to the same shares.

   NOMINATED PERSONS

4. Any person to whom this Notice is sent who is a person nominated under section 146 of the Companies Act to enjoy information rights (a "Nominated Person") may have a right under an agreement between them and the shareholder by whom they were nominated, to be appointed (or to have someone else appointed) as a proxy for the Annual General Meeting. If a Nominated Person has no such proxy

   appointment right or does not wish to exercise it, they may, under any such agreement, have a right to give instructions to the shareholder as to the exercise of voting rights.

5. The statement of the rights of shareholders in relation to the appointment of proxies as stated above does not apply to Nominated Persons. The rights described in that paragraph can only be exercised by shareholders of the Company.

   ISSUED SHARE CAPITAL AND TOTAL VOTING RIGHTS

6. As at 13 April 2026 (being the last practicable date prior to the publication of this Notice) the Company's issued share capital consisted of 326,525,334 Ordinary Shares, carrying one vote each. The Company does not hold any shares in treasury. Therefore, the total voting rights in the Company as at 13 April 2026 are 326,525,334.

   MEMBERS' REQUESTS UNDER SECTION 527 OF THE COMPANIES ACT

7. Under section 527 of the Companies Act, members meeting the threshold requirements set out in that section have the right to require the Company to publish a statement on a website setting out any matter relating to: (i) the audit of the Company's accounts (including the auditors' report and the conduct of the audit) that are to be laid before the Annual General Meeting; or (ii) any circumstance connected with an auditor of the Company ceasing to hold office since the last annual general meeting. The Company may not require the Shareholders requesting any such website publication to pay their expenses in complying with sections 527 or 528 of the Companies Act. Where the Company is required to place a statement on a website under section 527 of the Companies Act, it must forward the statement to the Company's auditors not later than the time when it makes the statement available on the website. The business which may be dealt with at the Annual General Meeting includes any statement that the Company has been required under section 527 of the Companies Act to publish on a website.

   MEMBERS' RIGHTS TO ASK QUESTIONS

8. Any member attending the meeting in person has the right to ask questions. The Company must cause to be answered any such question relating to the business being dealt with at the meeting but no such answer need be given if: (i) to do so would interfere unduly with the preparation for the meeting or involve the disclosure of confidential information; (ii) the answer has already been given on a website in the form of an answer to

   a question; or (iii) it is undesirable in the interests of the Company or the good order of the meeting that the question be answered.

   INSPECTION OF DOCUMENTS

9. The following documents are available for inspection at the Company's registered office during normal business hours (Saturdays, Sundays and Bank Holidays excluded) from the date of this Notice until the close of the AGM and at the place of the AGM from 15 minutes before the AGM until it ends:

   • Copies of the Executive Directors' service contracts.

   • Copies of the letters of appointment of the Non-Executive Directors.

     WEBSITE

10. A copy of this Notice and other information required by section 311A of the Companies Act can be found at https://www.harworthgroup.com/investors/annual-general-meeting/.

    VOTING RESULTS

11. The results of the voting at the Annual General Meeting will be announced through a Regulatory Information Service and will appear on the Company website, https://www.harworthgroup.com/investors/annual-general-meeting/, on 18 May 2026.

You may not use any electronic address provided either in this Notice or any related document (including the Proxy Form) to communicate with the Company for any purposes other than those expressly stated.

Map and Directions

Key

AGM venue

Address:

Unit 1, Harworth Way, Catcliffe, Rotherham, S60 5GR

what3words: Stud.Enhancement.Grant

1. Leave the M1 at junction 33 (signposted to Sheffield Centre, Rotherham, A630) and join the A630 for Sheffield.

2. Continue on the A630 for approximately 1 mile and take the first slip road exit signposted Catcliffe B6533.

3. At the roundabout, take the first left straight off the slip road.

4. Towards the next roundabout, get into the middle lane and take the third exit, signposted Handsworth B6066 - the Courtyard by Marriot will be on your left.

5. Take the first left hand turn onto Mable Way then right and 1 Harworth Way will be ahead on the right.

1. Sheffield Station receives regular services from Newcastle Central, Manchester Piccadilly and London St. Pancras.

2. The AGM venue is a short taxi ride from the station. NB: If you are booking via Uber please use the Courtyard hotel postcode S60 5GN.

3. For further train service information please telephone the National Rail Enquiry Line on 03457 48 49 50 or visit https://www.nationalrail.co.uk

Al Taxis - 01709 555555

Gold Star Taxis - 01709 838383

Martini Taxis - 01709 373737