Auction Technology Group PLC

AGM Information • Dec 10, 2025

Auction Technology Group plc

(incorporated and registered in England and Wales under number 13141124)

Notice of Annual General Meeting

and Explanatory Circular to Shareholders

The Annual General Meeting will be held at 1.00 p.m. on 22 January 2026 at the offices of Travers Smith LLP, 10 Snow Hill, London, EC1A 2AL.

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 financial advice from your stockbroker, solicitor, accountant or other professional adviser or other independent adviser authorised under the Financial Services and Markets Act 2000.

If you have sold or otherwise transferred all of your shares in Auction Technology Group plc, please pass this document, together with the accompanying documents, as soon as possible to the purchaser or transferee, or to the person who arranged the sale or transfer so they can pass these documents to the person who now holds the shares.

This document should be read as a whole. Your attention is drawn to the letter from the Chair of Auction Technology Group plc set out on page 3 of this document which contains the recommendation by the Directors of Auction Technology Group plc (the "Company") to shareholders to vote in favour of the resolutions to be proposed at the Annual General Meeting.

Notice of the Annual General Meeting of Auction Technology Group plc to be held at the offices of Travers Smith LLP, 10 Snow Hill, London EC1A 2AL on Thursday 22 January 2026 at 1.00 p.m. is set out at the end of this document. Shareholders will also find enclosed with this document a form of proxy for use in connection with the Annual General Meeting.

Whether or not you propose to attend the Annual General Meeting, shareholders are encouraged to complete and submit the form of proxy in accordance with the instructions printed on the enclosed form. The form of proxy must be received by our Registrar, Equiniti Limited, by no later than 1.00 p.m. on Tuesday 20 January 2026. Alternatively, a proxy may be appointed electronically at www.shareview.co.uk using your Shareholder Reference Number on the form of proxy or, if you hold shares in CREST, by using the CREST electronic proxy appointment service. If you are an institutional investor you may also appoint a proxy electronically via the Proxymity platform.

Letter from the Chairman of Auction Technology Group plc

(incorporated and registered in England and Wales under number 13141124)

Directors:

Scott Forbes, Independent Non-Executive Chairman John-Paul Savant, Chief Executive Officer Sarah Highfield, Chief Financial Officer Suzanne Baxter, Senior Independent Non-Executive Director Pauline Reader, Independent Non-Executive Director Tamsin Todd, Independent Non-Executive Director Andrew Miller, Independent Non-Executive Director Sejal Amin, Independent Non-Executive Director

Registered Office:

The Harlequin Building 6th Floor 65 Southwark Street London SE1 0HR

10 December 2025

Dear Shareholder

I am pleased to invite you to the Company's fifth Annual General Meeting which will be held at the offices of Travers Smith LLP, 10 Snow Hill, London EC1A 2AL on Thursday 22 January 2026 at 1.00 p.m.

The notice of Annual General Meeting is set out on pages 4 to 8 of this document. A copy of the Annual Report and Accounts for the year ended 30 September 2025 (the "2025 Annual Report") is enclosed, together with a form of proxy to enable you to exercise your voting rights.

Purpose and Questions

The purpose of the Annual General Meeting is to seek shareholders' approval for the resolutions to be proposed at the Annual General Meeting. It is also an opportunity for shareholders to express their views and to ask questions of the Directors of the Company (the "Board"). We, as your Board, are committed to open dialogue with our shareholders and our Annual General Meeting is an excellent means to engage with you directly. As we appreciate that some shareholders may prefer not to attend, or may be unable to attend, the Annual General Meeting, if you have any questions in respect of the business of the Annual General Meeting which you would prefer to raise by email in advance, please email them to investorrelations@auctiontechnologygroup.com by 1.00 p.m. on Tuesday 20 January 2026. The Board will attempt to reply to any emails received as soon as reasonably practicable. Replies will either be made by return email or published on the investor relations section of our website www.auctiontechnologygroup.com/investors, as deemed appropriate by the Board.

Live Webcast

Shareholders who would prefer not, or are unable, to attend the Annual General Meeting in person are invited to watch and listen to the Annual General Meeting online via a live webcast. Written questions may be submitted via the electronic platform at any time during the webcast of the Annual General Meeting, or by email in advance of the Annual General Meeting (as detailed above). Please note that shareholders joining the live webcast will not be able to vote on the day and must appoint a proxy in advance to ensure their vote is counted, which they should do by appointing the Chair of the Annual General Meeting as their proxy. To attend the webcast shareholders should send an email to investorrelations@auctiontechnologygroup.com, including their Shareholder Reference Number and their full name and their address, by 6.00 p.m. on Tuesday 20 January 2026. A link to the webcast will be provided following verification of the shareholder's identity with our registrars.

Appointment of Proxies

You have the right to appoint a proxy to vote at the Annual General Meeting on your behalf. To appoint a proxy, please complete the enclosed form of proxy and send it to our registrar, Equiniti Limited. Alternatively, you can appoint a proxy online at www.shareview.co.uk using your Shareholder Reference Number on the form of proxy or, if you hold shares in CREST, by using the CREST electronic appointment service. If you are an institutional investor, you may also appoint a proxy electronically via the Proxymity platform. Shareholders are encouraged to appoint the Chair of the Annual General Meeting as their proxy to ensure that their vote is counted.

Proxy appointments must be received by Equiniti Limited by no later than 1.00 p.m. on Tuesday 20 January 2026.

Electronic Communications

The Company actively encourages all shareholders to register for electronic communications to enable it to reduce the paper used when communicating with shareholders. For further details on how to register for electronic communications please see our website, https://www.auctiontechnologygroup.com/investors/share-price-information-and-shareholder-communications/electronic-communications/.

Recommendation

In the opinion of the Directors, each of the resolutions to be proposed at the Annual General Meeting is in the best interests of the Company and shareholders as a whole. Accordingly, the Directors recommend that shareholders vote in favour of the resolutions at the Annual General Meeting, as the Directors intend to do in respect of their own beneficial holdings of ordinary shares, which amount to approximately 2.3 per cent. of the issued ordinary shares of the Company (excluding treasury shares).

Yours faithfully

Scott Forbes

Chairman

10 December 2025

Notice of Annual General Meeting

Auction Technology Group plc

(Registered in England and Wales under no. 13141124)

Notice is hereby given that the Annual General Meeting of Auction Technology Group plc (the "Company") will be held at the offices of Travers Smith LLP, 10 Snow Hill, London EC1A 2AL on Thursday 22 January 2026 at 1.00 p.m. You will be asked to consider and vote on the resolutions below. Resolutions 15 to 19 will be proposed as special resolutions. All other resolutions will be proposed as ordinary resolutions.

For further information on all of the resolutions, please refer to the explanation of resolutions which can be found on pages 6 to 8.

Annual Report and Accounts

1. To receive the reports of the Directors and the Auditor and the audited accounts for the financial year ended 30 September 2025.

Directors' Remuneration Report

1. To approve the Directors' Remuneration Report, set out on pages 112 to 128 of the Annual Report and Accounts for the financial year ended 30 September 2025.

Election and re-election of Directors

• 1. To re-elect John-Paul Savant as a Director of the Company.
• 1. To elect Sarah Highfield as a Director of the Company.
• 1. To re-elect Scott Forbes as a Director of the Company.
• 1. To re-elect Pauline Reader as a Director of the Company.
• 1. To re-elect Suzanne Baxter as a Director of the Company.
• 1. To re-elect Tamsin Todd as a Director of the Company.
• 1. To re-elect Andrew Miller as a Director of the Company.
• 1. To elect Sejal Amin as Director of the Company.

Auditors

• 1. To re-appoint Ernst & Young LLP as Auditor of the Company to hold office until the conclusion of the next general meeting of the Company at which accounts are laid.
• 1. To authorise the Directors to determine the remuneration of the Auditor.

Political donations

• 1. That, in accordance with section 366 of the Companies Act 2006 (the "Act"), during the period beginning on the date of the passing of this resolution and ending at the conclusion of the annual general meeting of the Company to be held in 2027 or at close of business on 22 April 2027, whichever is sooner, the Company and any company which at any time during the period for which this resolution has effect, is or becomes a subsidiary of the Company, be authorised to:
• (a) make political donations to political parties and/or independent election candidates not exceeding £50,000;
• (b) make political donations to political organisations other than political parties not exceeding £50,000; and
• (c) incur political expenditure not exceeding £50,000,

provided that the aggregate amount of such political donations and political expenditure shall not exceed £50,000. For the purposes of this resolution, the expressions "political donations", "political party", "political organisation", "independent election candidate" and "political expenditure" have the meanings set out in Part 14 of the Act.

Directors' Authority to Allot Shares

• 1. That the Directors be generally and unconditionally authorised pursuant to and in accordance with section 551 of the Companies Act 2006 (the "Act") to exercise all the powers of the Company to allot shares in the Company and grant rights to subscribe for or to convert any security into shares in the Company:
• (a) up to a nominal amount of £4,019.20; and
• (b) comprising equity securities (as defined in section 560(1) of the Act) up to an aggregate nominal amount of £4,019.20 in connection with a fully pre-emptive offer to:
• (i) ordinary shareholders in proportion (as nearly as may be practicable) to their existing holdings; and
• (ii) holders of other equity securities as required by the rights of those securities or, subject to such rights as the Directors otherwise consider necessary,

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.

The authorities conferred on the Directors to allot securities under paragraphs (a) and (b) will expire at the conclusion of the annual general meeting of the Company to be held in 2027 or at close of business on 22 April 2027, whichever is sooner (unless previously renewed, varied or revoked by the Company at a general meeting). The Company may before these authorities expire, make an offer or enter into an agreement which would or might require such securities to be allotted after such expiry and the Directors may allot such securities in pursuance of that offer or agreement as if the power conferred by this resolution had not expired.

Disapplication of Pre-emption Rights (General)*

• 1. That, subject to the passing of Resolution 14, the Directors be authorised to allot equity securities (as defined in section 560(1) of the Companies Act 2006 (the "Act")) for cash under the authority given by Resolution 14 and/or sell ordinary shares held by the Company as treasury shares for cash as if section 561 of the Act did not apply to any such allotment or sale, provided that such power be limited to:
• (a) the allotment of equity securities or sale of treasury shares in connection with an offer of, or invitation to apply for, equity securities (but in the case of the authority granted under paragraph (b) of Resolution 14 above, by way of a fully pre-emptive offer only) to:
• (i) ordinary shareholders in proportion (as nearly as may be practicable) to their existing holdings; and
• (ii) holders of other equity securities as required by the rights of those securities or, subject to such rights as the Directors otherwise consider necessary,

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;

• (b) the allotment of equity securities or sale of treasury shares (otherwise than pursuant to paragraph (a) above) up to an aggregate nominal amount of £1,205.76; and
• (c) the allotment of equity securities or sale of treasury shares (otherwise than under paragraph (a) or (b) above) up to a nominal amount equal to 20 per cent. of any allotment of equity securities or sale of treasury shares from time to time under paragraph (b) above, such authority to be used only for the purposes of making a follow-on offer which the Directors determine to be of a kind contemplated by paragraph 3 of Section 2B of the Statement of Principles on Disapplying Pre-Emption Rights most recently published by the Pre-Emption Group prior to the date of this notice,

such authorities to expire at the conclusion of the annual general meeting of the Company to be held in 2027 or at close of business on 22 April 2027, whichever is sooner (unless previously renewed, varied or revoked by the Company at a general meeting). The Company may before these authorities expire, make an offer or enter into an agreement which would or might require equity securities to be allotted after such expiry and the Directors may allot equity securities in pursuance of that offer or agreement as if the power conferred by this resolution had not expired.

Disapplication of Pre-emption Rights (Acquisition or Capital Investment)*

• 1. That, subject to the passing of Resolution 14, the Directors be authorised, in addition to any authority granted under Resolution 15, to allot equity securities (as defined in section 560(1) of the Act) for cash under the authority given by Resolution 14 and/or to sell ordinary shares held by the Company as treasury shares for cash as if section 561 of the Act did not apply to any such allotment or sale, provided that such power be:
• (a) limited to the allotment of equity securities or sale of treasury shares up to a nominal amount of £1,205.76, used only for the purposes of financing (or refinancing, if the authority is to be used within twelve months after the original transaction) a transaction which the Directors determine to be an acquisition or other capital investment of a kind contemplated by the Statement of Principles on Disapplying Pre-emption Rights most recently published by the Pre-Emption Group prior to the date of this Notice; and
• (b) limited to the allotment of equity securities or sale of treasury shares (otherwise than under paragraph (a) above) up to a nominal amount equal to 20 per cent. of any allotment of equity securities or sale of treasury shares from time to time under paragraph (a) above, such authority to be used only for the purposes of making a follow-on offer which the Directors determine to be of a kind contemplated by paragraph 3 of Section 2B of the Statement of Principles on Disapplying Pre-Emption Rights most recently published by the Pre-Emption Group prior to the date of this Notice,

such authority to expire at the conclusion of the annual general meeting of the Company to be held in 2027 or at close of business on 22 April 2027, whichever is sooner (unless previously renewed, varied or revoked by the Company at a general meeting). The Company may before this authority expires, make an offer or enter into an agreement which would or might require equity securities to be allotted after such expiry and the Directors may allot equity securities in pursuance of that offer or agreement as if the power conferred by this resolution had not expired.

Purchase of own Shares*

• 1. That the Company be and is hereby unconditionally and generally authorised for the purpose of section 701 of the Companies Act 2006 (the "Act") to make market purchases (as defined in section 693 of the Act) of ordinary shares of 0.01 pence each in the capital of the Company ("ordinary shares") on such terms and in such manner as the Directors may determine provided that:
• (a) the maximum number of ordinary shares which may be purchased is 12,057,614;
• (b) the minimum price (exclusive of expenses) which may be paid for each ordinary share is its nominal value;
• (c) the maximum price (exclusive of expenses) which may be paid for an ordinary share shall not be more than the higher of: (i) an amount equal to 105 per cent. of the average middle market quotations for an ordinary share, as derived from the London Stock Exchange Daily Official List, for the five business days immediately preceding the day on which the ordinary share is 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 (SETS);
• (d) this authority shall expire at the conclusion of the annual general meeting of the Company to be held in 2027 or at close of business on 22 April 2027, whichever is sooner (unless previously renewed, varied or revoked by the Company at a general meeting); and
• (e) the Company may make a contract to purchase its own ordinary shares under the authority conferred by this resolution prior to the expiry of such authority, and such contract will or may be executed wholly or partly after the expiry of such authority, and the Company may make a purchase of its own ordinary shares in pursuance of any such contract.

Notice period for general meetings, other than an annual general meeting*

1. That a general meeting other than an annual general meeting may be called on not less than 14 clear days' notice.

Capital Reduction*

1. That, subject to the approval of the Court, the amount standing to the credit of the Company's share premium account be cancelled.

*Special resolution

By order of the Board

Anne-Marie Palmer

Company Secretary

10 December 2025

Registered Office: The Harlequin Building, 6th Floor, 65 Southwark Street, London SE1 0HR

Explanation of resolutions

Resolutions 1 – 14 (inclusive) are proposed as ordinary resolutions. For each of these to be passed, more than half of the votes cast must be in favour of the relevant resolution. Resolutions 15 – 19 (inclusive) are proposed as special resolutions. For each of these to be passed, at least three quarters of the votes cast must be in favour of the resolution.

An explanation of each of the resolutions is set out below:

Resolution 1 – Annual Report and Accounts

The Directors are required to present to the Annual General Meeting the audited Accounts and the Directors' and Auditors' Reports for the financial year ended 30 September 2025.

Resolution 2 – Directors' Remuneration Report

In accordance with section 439 of the Companies Act 2006 (the "Act"), shareholders are requested to approve the Directors' Remuneration Report. The Directors' Remuneration Report is set out on pages 112 to 128 of the 2025 Annual Report. The vote is advisory and the Directors' entitlement to receive remuneration is not conditional on shareholder approval of this resolution.

Resolutions 3 to 10 – Election and Re-election of Directors

Resolutions 3 to 10 are to approve the election or re-election of the Board. In accordance with the UK Corporate Governance Code, all of the Directors are subject to annual re-election by shareholders at the Annual General Meeting. All Directors are standing for re-election by the shareholders at this year's Annual General Meeting, with the exception of Sarah Highfield and Sejal Amin, who were appointed to the Board since the Company's last Annual General Meeting and are each, therefore, standing for election.

The Directors believe that the Board offers an appropriate balance of knowledge and skills and that each of the independent Non-Executive Directors are independent in character and judgement. The Nomination Committee, which considers the balance of the Board and the mix of skills, knowledge and experience of its members, has considered and recommends to the Board the appointment of all of the Directors of the Company standing for election or re-election. The Chair confirms that the Non-Executive Directors standing for election or re-election continue to demonstrate effective performance and commitment to the role and have sufficient time to meet their responsibilities.

Full biographical details of all of the Directors appear on pages 93 to 95 of the 2025 Annual Report. The UK Corporate Governance Code recommends that companies set out the specific reasons why each individual Director's contribution is, and continues to be, important to the company's long-term sustainable success. This builds on section 172 of the Companies Act 2006 which is discussed in the 2025 Annual Report and the relevant details are set out below.

John-Paul Savant

Chief Executive Officer

How John-Paul supports the Company's strategy and long-term success

John-Paul is passionate about the role ATG can play in accelerating the circular economy through powering the discovery of items worth finding again. His focus is building on ATG's leadership position through creative strategies to enhance the value ATG provides to the secondary goods ecosystem to transform how people connect with unique finds, building focused, collaborative management teams with the ability to execute. He is committed to a shared success model and is excited by building capabilities and services that allow both sellers of unique secondary items and ATG to grow profitably together. He leads and guides the ATG team with a clear vision to grow ATG into a true online global market leader, to pursue a strategy that steadily enhances ATG's competitive position, to invest against the six strategic growth drivers, and to build and develop a team capable of delivering sustainable shareholder value.

Sarah Highfield

Chief Financial Officer

How Sarah supports the Company's strategy and long-term success Sarah has wide-ranging financial and commercial experience and brings extensive experience of operating as a CFO and driving growth globally, including in North America. She is recognised for her strong credentials in business partnering across organisations, fostering collaboration to drive sustainable commercial success. Sarah's financial expertise, experience and knowledge make her a trusted advisor and leader. She has a track record of implementing performance improvement programmes and leading M&A strategies.

Scott Forbes

Chairman

How Scott supports the Company's strategy and long-term success Scott is an experienced UK and US listed company chair and independent director with 25 years of digital commerce and online marketplace experience across multiple sectors. Scott's extensive experience as an independent non-executive director in listed company environments was integral to the Board navigating its early years as a listed company. He has a proven track record for capital allocation and the businesses he has chaired have delivered substantial value to shareholders. He is recognised for his collaborative leadership, with a focus on business operating strategy as well as on creating strong, diverse and effective boards. Other Board members value Scott's patience and sound judgement, along with his experience in M&A, finance and business operating strategy. Scott is respected for his ability to constructively challenge and contribute to the Company's strategy, promoting an open and collaborative environment across the Board.

Pauline Reader

Non-Executive Director

How Pauline supports the Company's strategy and long-term success Pauline brings over 20 years of marketing and e-commerce experience through roles at a range of global consumer businesses and in investment banking. Pauline is highly regarded by the Board for her marketing, consumer and diversity insights. Her knowledge of the digital realm and of global consumer trends provides a platform for her to bring fresh thinking and perspectives to discussions about ATG's next stage of growth.

Suzanne Baxter

Senior Independent Non-Executive Director

How Suzanne supports the Company's strategy and long-term success Alongside her significant financial experience and qualifications, Suzanne's expertise in growing businesses and corporate governance is invaluable to the Board. Suzanne's prior board experience enabled her to successfully step into the role of Audit Committee Chair immediately upon appointment in 2022 and she continuously provides constructive challenge to the Executive Directors and support and guidance to the finance function.

Tamsin Todd

Non-Executive Director

How Tamsin supports the Company's strategy and long-term success Tamsin's digital transformation background, coupled with her questioning mindset and collaborative style, has proved a valuable asset to the Board. Tamsin brings broad international experience and a passion in excellence in customer service and the employee voice, as well as extensive knowledge and interest in the impact of diversity in the business and on the Board, where she provides insight and challenge. Tamsin fully embraces the role of designated Non-Executive Director for workforce engagement, providing an open channel of communication for employee issues to be considered by the Board.

Andrew Miller

Non-Executive Director

How Andrew supports the Company's strategy and long-term success Andrew is an experienced CEO, CFO and non-executive director and has a wealth of experience across a number of consumer sectors. He has extensive experience in technology and digital transformation and this has been key in every business he has been involved in over the last two decades. Along with his significant M&A experience, particularly in digital business, Andrew brings valuable strategic, operational and financial insight and robust challenge to the Board.

Sejal Amin

Non-Executive Director

How Sejal supports the Company's strategy and long-term success Sejal has over 20 years of experience at some of the world's largest companies including Shutterstock, Khoros and Thomson Reuters. An experienced senior executive and tech leader, she brings exceptional knowledge of digital, technology, cyber and IT security matters from working within innovative companies. Sejal is considered to have the necessary skills and experience to help drive strong performance and extensive experience of aligning product and technology with business strategy and execution. She is comfortable in developing growth strategies and navigating market challenges.

Resolutions 11 and 12 – Auditors

Resolution 11 proposes the re-appointment of Ernst & Young LLP as Auditors of the Company until the conclusion of the Company's annual general meeting to be held in 2027. The Company is required to appoint Auditors at every general meeting of the Company at which accounts are presented to shareholders. The current appointment of Ernst & Young LLP as the Company's Auditors will end at the conclusion of the Annual General Meeting and it has advised of its willingness to stand for re-appointment.

It is normal practice for a company's directors to be authorised to agree how much the Auditor should be paid and Resolution 12 grants this authority to the Directors.

Resolution 13 – Political Donations

Resolution 13 is to approve the limit of financial political contributions that the Company can make. It is not the Company's policy to make donations to, or incur expenditure on behalf of, political parties, other political organisations or independent election candidates and the Directors have no intention of using the authority for that purpose. However, it is possible that certain routine activities undertaken by the Company and its subsidiaries might unintentionally fall within the wide definition of matters constituting political donations and expenditure in the Act. Shareholder approval is therefore being sought on a precautionary basis only, to ensure that neither the Company nor any company, which at any time during the period for which this resolution has effect, is a subsidiary of the Company, commits a technical breach of the Act when carrying out activities in furtherance of its legitimate business interests.

The Directors are therefore seeking authority to make political donations to political parties, other political organisations, and independent election candidates not exceeding £50,000 in total. In line with guidance published by the Investment Association, this resolution will be put to shareholders annually rather than every four years as required by the Act. This authority will expire at the conclusion of the Company's annual general meeting to be held in 2027 or at close of business on 22 April 2027, whichever is sooner.

Resolution 14 – Directors' Authority to Allot Shares

Resolution 14 is proposed to renew the Directors' power to allot shares. Resolution 14(a) seeks to grant the Directors authority to allot, pursuant to section 551 of the Act, shares and grant rights to subscribe for or to convert any security into shares in the Company up to a maximum nominal amount of £4,019.20. This represents 40,192,047 ordinary shares of 0.01 pence each, which is approximately one third of the Company's issued ordinary share capital (excluding treasury shares) as at 1 December 2025, (being the latest practicable date prior to the publication of this Notice).

In accordance with The Investment Association's Share Capital Management Guidelines, Resolution 14(b) seeks to grant the Directors authority to allot ordinary shares in connection with a fully pre-emptive offer in favour of ordinary shareholders up to an aggregate nominal value of £4,019.20 (representing 40,192,047 ordinary shares of 0.01 pence each). This amount represents one third of the Company's issued ordinary share capital (excluding treasury shares) as at 1 December 2025, (being the latest practicable date prior to the publication of this Notice).

The authorities sought under paragraphs (a) and (b) of this resolution will expire at the conclusion of the annual general meeting of the Company to be held in 2027 or at close of business on 22 April 2027, whichever is sooner. The Directors have no present intention of exercising either of the authorities under this resolution, but the Board wishes to ensure that the Company has maximum flexibility in managing the financial resources of the Company.

As at 1 December 2025, the latest practicable date prior to the date of this Notice, the Company held 2,272,654 treasury shares, representing 1.88 per cent. of the Company's issued ordinary share capital (excluding treasury shares) as at 1 December 2025.

Resolutions 15 and 16 – Disapplication of Pre-emption Rights

Resolutions 15 and 16 are to approve the disapplication of pre-emption rights. The passing of these resolutions would allow the Directors to allot shares for cash under the authority given by Resolution 14 and/or sell treasury shares without first having to offer such shares to existing shareholders in proportion to their existing holdings.

The authority under Resolution 15 would be limited to:

• (a) allotments or sales in connection with pre-emptive offers and offers to holders of other equity securities if required by the rights of those shares or as the Board considers necessary;
• (b) allotments or sales (otherwise than pursuant to (a) above) up to an aggregate nominal amount of £1,205.76, which represents approximately 10 per cent. of the Company's issued ordinary share capital (excluding treasury shares) as at 1 December 2025 (being the latest practicable date prior to the publication of this Notice); and
• (c) allotments or sales (otherwise than under paragraphs (a) and (b) above) up to an aggregate nominal amount of £241.15, which represents approximately 2 per cent. of the Company's issued ordinary share capital (excluding treasury shares) as at 1 December 2025 (being the latest practicable date prior to the publication of this Notice) to be used only for the purposes of making a follow-on offer to retail investors or existing investors not allocated shares in the offer.

Resolution 16 would give the Directors authority to (i) allot a further 10 per cent. of the issued ordinary share capital of the Company (excluding treasury shares) as at 1 December 2025 (being the latest practicable date prior to the publication of this Notice) for the purposes of financing a transaction which the Directors determine to be an acquisition or other capital investment contemplated by the Statement of Principles on Disapplying Pre-Emption Rights most recently published by the Pre-Emption Group prior to the date of this

Notice of AGM Explanation of resolutions continued

Notice (the "Statement of Principles") and (ii) allot or sell shares (otherwise than under paragraph (i)) up to an aggregate nominal amount of £241.15, which represents approximately 2 per cent. of the Company's issued ordinary share capital (excluding treasury shares) as at 1 December 2025 (being the latest practicable date prior to the publication of this Notice) to be used only for the purposes of making a follow-on offer to retail investors or existing investors not allocated shares in the offer.

The disapplication authorities under Resolutions 15 and 16 are in line with guidance set out in the Statement of Principles. The Statement of Principles allow a board to allot shares for cash otherwise than in connection with a pre-emptive offer (i) up to 10 per cent. of a company's issued share capital (excluding treasury shares) for use on an unrestricted basis, (ii) up to a further 10 per cent. of a company's issued share capital (excluding treasury shares) for use in connection with an acquisition or specified capital investment announced either contemporaneously with the issue, or which has taken place in the preceding twelve-month period and is disclosed in the announcement of the issue and (iii) in the case of both (i) or (ii), up to an additional 2 per cent. in connection with a follow-on offer to retail investors or existing investors not allocated shares in the offer. The Directors confirm that, in considering the exercise of the authority under Resolutions 15 and 16, they intend to follow the shareholder protections in Part 2B of the Pre-emption Group's Statement of Principles to the extent reasonably practicable.

The authorities contained in Resolutions 15 and 16 will expire at the conclusion of the annual general meeting of the Company to be held in 2027 or at close of business on 22 April 2027, whichever is sooner.

Resolution 17 – Purchase of own Shares

Resolution 17 is to approve the purchase by the Company of its own ordinary shares in the market. The authority limits the number of shares that could be purchased to a maximum of 12,057,614 ordinary shares (equivalent to 10 per cent. of the Company's issued ordinary share capital (excluding treasury shares) as at 1 December 2025 (being the latest practicable date prior to the publication of this Notice)) and sets a minimum and maximum price. The authority will expire at the conclusion of the annual general meeting of the Company to be held in 2027 or at close of business on 22 April 2027, whichever is sooner.

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 the financial resources of the Company, the Company's share price and future funding opportunities. The Directors will exercise this authority only when to do so would be in the best interests of the Company and of its shareholders generally, and could be expected to result in an increase in earnings per share of the Company. Any purchases of ordinary shares would be by means of market purchase through the London Stock Exchange.

Any shares the Company buys under this authority may either be cancelled or held in treasury. Treasury shares can be re-sold for cash, cancelled or used for the purposes of employee share schemes. No dividends are paid on shares whilst held in treasury and no voting rights attach to treasury shares. The Directors believe that it is desirable for the Company to have this choice as holding the purchased shares as treasury shares would give the Company the ability to re-sell or transfer them in the future and so provide the Company with additional flexibility in the management of its capital base.

As at 1 December 2025 (being the latest practicable date prior to the publication of this Notice), the total number of options to subscribe for ordinary shares in the Company amounted to 4,370,542.

This represented 3.62 per cent. of the Company's issued ordinary share capital (excluding treasury shares) on that date. If this authority to purchase shares is exercised in full, the options would represent 4.03 per cent. of the issued ordinary share capital (excluding treasury shares) as at 1 December 2025.

Resolution 18 – Notice period for general meetings, other than an annual general meeting

Resolution 18 is to approve the calling of general meetings of the Company (other than an annual general meeting) on 14 clear days' notice. The notice period required by the Act for general meetings of the Company is 21 clear days unless (i) shareholders agree to a shorter notice period and (ii) the Company has met the requirements for electronic voting under the Companies (Shareholders' Rights) Regulations 2009. Annual general meetings must always be held on at least 21 clear days' notice.

The Directors confirm that the shorter notice period would not be used as a matter of routine, but only where flexibility is merited by the business of the meeting, the proposals are time-sensitive and it is thought to be to the advantage of shareholders as a whole. An electronic voting facility will be made available to all shareholders for any meeting held on such notice. The approval will be effective until the Company's next annual general meeting, when it is intended that a similar resolution will be proposed.

Resolution 19 – Cancellation of Share Premium Account

The Directors are proposing to cancel the Company's share premium account (the "Capital Reduction") in order to create distributable reserves. This will be achieved by the cancellation of the share premium account as part of a court-confirmed reduction of capital. Resolution 19, which will be proposed as a special resolution, provides the requisite authority under the Companies Act 2006 for the cancellation.

Under the Act, the share premium account of the Company is treated as if it were part of the share capital of the Company and is not available for distribution to shareholders. This potentially constrains the company's ability to return surplus capital to shareholders should any such decision be made as part of the company's planned review of its capital allocation priorities

As at 30 September 2025, the distributable reserves of the Company were £nil. If the Capital Reduction becomes effective, the amount standing to the credit of the share premium account (being £236.8m as at 30 September 2025) will be cancelled and credited to the Company's distributable reserves. The Capital Reduction, if approved, would provide the Company with flexibility to support shareholder returns over the coming years in the form of dividends and/or share buybacks and the Directors believe that this additional flexibility is in the best interests of the Company.

The Capital Reduction itself will not involve any return of capital to shareholders or any reduction of the Company's net assets. In addition, following the implementation of the Capital Reduction, there will be no change in the nominal value of the Company's ordinary shares or the number of ordinary shares in issue.

The Capital Reduction is conditional upon: (i) the passing of Resolution 19 as a special resolution; (ii) the confirmation of the High Court of England and Wales (the "Court"); (iii) the registration of the Court order by the Registrar of Companies; and (iv) it not otherwise being prohibited under applicable law or regulation. The Directors reserve the right to elect not to proceed with the Capital Reduction if they no longer consider it to be in the best interests of the Company.

Before giving its confirmation, the Court will need to be satisfied that the Capital Reduction does not put any of the Company's creditors at risk of not being paid when due. The Directors intend to take such steps to satisfy the Court in this regard as they consider appropriate.

Notes to the Notice of Annual General Meeting

Entitlement to attend and vote

1. Pursuant to Regulation 41 of the Uncertificated Securities Regulations 2001 (as amended) and section 360B(2) of the Act, only those shareholders registered in the register of members of the Company at 6.30 p.m. on Tuesday 20 January 2026 (or, in the event of any adjournment, at 6.30 p.m. on the day which is two days prior to the adjourned meeting) shall be entitled to attend and vote at the Annual General Meeting (the "AGM"). Changes to the register of members after the relevant deadline shall be disregarded in determining the rights of any person to attend and vote at the AGM.

Attending in person

1. Registration for the AGM opens at 12.45 p.m. If you wish to attend the AGM in person, please bring your attendance card with you. It authenticates your right to attend, speak and vote at the AGM and will speed up your admission. You may also find it useful to bring this Notice and the 2025 Annual Report so that you can refer to them at the AGM.

Appointment of proxies

• 1. If you are a member who is entitled to attend and vote at the AGM, you are entitled to appoint a proxy to exercise all or any of your rights to attend, speak and vote on your behalf at the AGM. A form of proxy, which may be used to make such appointment and to give proxy instructions, accompanies this Notice.
• 1. If you are not a member of the Company but have been nominated by a member of the Company to enjoy information rights, you do not have a right to appoint any proxies under the procedures set out in this "Appointment of proxies" section. Please read the section "Nominated Persons" below.
• 1. A proxy does not need to be a member of the Company. You may appoint more than one proxy in relation to the AGM provided that each proxy is appointed to exercise the rights attached to a different share or shares held by you. To appoint more than one proxy, (an) additional form(s) of proxy may be obtained by contacting Equiniti Limited on +44 371 384 2030 (if calling from outside of the UK, please ensure the country code is used) or you may photocopy the form of proxy accompanying this Notice. Calls to the Equiniti helpline number are charged at the standard rate per minute plus network extras. Lines are open from 8.30 a.m. to 5.30 p.m. Monday to Friday, excluding public holidays in England and Wales. Please indicate in the box next to the proxy holder's name, the number of shares in relation to which he or she is authorised to act as your proxy (which, in aggregate, should not exceed the number of shares held by you). 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. If you do not have a form of proxy and believe that you should have one, please contact Equiniti as set out above.
• 1. Shareholders can:
• (a) appoint a proxy and give proxy instructions by returning the form of proxy enclosed with this Notice by post (see notes 8 and 9 below);
• (b) register their proxy appointment electronically (see note 10 below);
• (c) if they hold shares in CREST, register their proxy appointment by utilising the CREST electronic proxy appointment service (see notes 11 to 14 below); or

• (d) institutional investors may also appoint a proxy electronically via the Proxymity platform.

• The return of a completed form of proxy, other such instrument or any CREST Proxy Instruction (as described in note 12 below) will not prevent a shareholder attending the AGM and voting in person if he/she wishes to do so.

Appointment of proxies by post

• 1. To be valid any form of proxy or other instrument appointing a proxy must be received by post or (during normal business hours only) by hand at Equiniti at Aspect House, Spencer Road, Lancing, West Sussex, BN99 6DA no later than 1.00 p.m. on Tuesday 20 January 2026.
• 1. In the case of a shareholder which is a corporation, the form of proxy must be executed by a duly authorised person or under its common seal or in any other manner authorised by its constitution. The power of attorney or authority (if any) should be returned with the form of proxy.

Appointment of proxies electronically

1. You can register your proxy appointment and voting instructions by going to Equiniti's Shareview website, www.shareview.co.uk, and logging in to your Shareview Portfolio. Once you have logged in, please click 'View' on the 'My investments' page and then click the link to vote and follow the on-screen instructions. If you have not yet registered for a Shareview Portfolio, go to www.shareview.co.uk and enter the requested information. It is important that you register for a Shareview Portfolio as soon as possible to allow enough time to complete your proxy appointment ahead of the deadline. To be valid, your proxy appointment and instructions should reach Equiniti no later than 1.00 p.m. on Tuesday 20 January 2026.

Appointment of proxies through CREST

• 1. CREST members who wish to appoint a proxy or proxies through the CREST electronic proxy appointment service may do so by using the procedures described in the CREST Manual. CREST personal members or other CREST sponsored members and those CREST members who have appointed a service provider(s) should refer to their CREST sponsor or voting service provider(s), who will be able to take the appropriate action on their behalf.
• 1. In order for a proxy appointment or instruction made using the CREST service to be valid, the appropriate CREST message (a "CREST Proxy Instruction") must be properly authenticated in accordance with Euroclear UK & International Limited's specifications and must contain the information required for such instruction, as described in the CREST Manual (www. euroclear.com/CREST). The message, regardless of whether it constitutes the appointment of a proxy or is an amendment to the instruction given to a previously appointed proxy must, in order to be valid, be transmitted so as to be received by the Company's agent, Equiniti (RA19), by 1.00 p.m. on Tuesday 20 January 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 Application Host) from which the Company's agent is able to retrieve the message by enquiry to CREST in the manner prescribed by CREST. After this time any change of instructions to proxies appointed through CREST should be communicated to the appointee through other means.

Notes to the Notice of Annual General Meeting continued

• 1. CREST members and, where applicable, their CREST sponsors, or voting service providers should note that Euroclear UK & International Limited does not make available special procedures in CREST for any particular message. Normal system timings and limitations will, therefore, apply in relation to the input of CREST Proxy Instructions. It is the responsibility of the CREST member concerned to take (or, if the CREST member is a CREST personal member or sponsored member or has appointed a voting service provider, to procure that his or her CREST sponsor or voting service provider(s) take(s)) such action as shall be necessary to ensure that a message is transmitted by means of the CREST system by any particular time. In this connection, CREST members and, where applicable, their CREST sponsors or voting system providers are referred, in particular, to those sections of the CREST Manual concerning practical limitations of the CREST system and timings.
• 1. The Company may treat as invalid a CREST Proxy Instruction in the circumstances set out in Regulation 35(5)(a) of the Uncertificated Securities Regulations 2001 (as amended).

Proxymity

1. 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 Equiniti. For further information regarding Proxymity, please go to www.proxymity.io. Your proxy must be lodged by 1.00 p.m. on Tuesday 20 January 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.

Appointment of proxies by joint holders

1. In the case of joint holders, where more than one of the joint holders purports to appoint a proxy, only the appointment submitted by the most senior holder will be accepted. Seniority is determined by the order in which the names of the joint holders appear in the Company's register of members in respect of the joint holding (the first-named being the most senior).

Changing proxy instructions

• 1. Shareholders may change proxy instructions by submitting a new proxy appointment using the methods set out above. Please note that the cut-off time for receipt of proxy appointments (see above) also applies in relation to amended instructions. Any amended proxy appointment received after the relevant cut-off time will be disregarded.
• 1. Where you have appointed a proxy using the form of proxy enclosed with this Notice and would like to change the instructions using another hard copy form of proxy, please contact Equiniti on +44 371 384 2030 (if calling from outside of the UK, please ensure the country code is used). Calls to this number are charged at the standard rate per minute plus network extras. Lines are open between 8.30 a.m. and 5.30 p.m. Monday to Friday, excluding public holidays in England and Wales.
• 1. If you submit more than one valid proxy appointment, the appointment received last before the latest time for the receipt of proxies will take precedence.

Terminating your proxy appointment

• 1. Shareholders may terminate a proxy instruction but to do so you will need to inform the Company in writing by sending a signed hard copy notice clearly stating your intention to revoke your proxy appointment to Equiniti Limited at Aspect House, Spencer Road, Lancing, West Sussex, BN99 6DA or by registering the revocation of your proxy appointment at www.shareview.co.uk.
• 1. The revocation notice must be received by Equiniti no later than 1.00 p.m. on Tuesday 20 January 2026. If you attempt to revoke your proxy appointment but the revocation is received after the time specified, your original proxy appointment will remain valid unless you attend the AGM and vote in person.

Corporate representatives

1. Any corporation which is a member can appoint one or more corporate representatives who may exercise on its behalf all of its powers as a member provided that they do not do so in relation to the same shares.

Nominated Persons

• 1. Any person to whom this Notice is sent who is a person nominated under section 146 of the Act to enjoy information rights (a "Nominated Person") may, under an agreement between him/her and the shareholder by whom he/she was nominated, have a right to be appointed (or to have someone else appointed) as a proxy for the AGM. Nominated Persons are advised to contact the shareholder who nominated them for further information on this and the procedure for appointing any such proxy.
• 1. If a Nominated Person has no such proxy appointment right or does not wish to exercise it, he/she may, under any such agreement, have a right to give instructions to the shareholder as to the exercise of voting rights. Such Nominated Persons are advised to contact the shareholders who nominated them for further information on this.

Right to ask questions

• 1. Under section 319A of the Act, any member attending the AGM has the right to ask questions at the AGM relating to the business of the AGM. The Company must cause to be answered any such question relating to the business being dealt with at the AGM but no such answer need be given if (a) to do so would interfere unduly with the preparation for the AGM or involve the disclosure of confidential information, (b) the answer has already been given on a website in the form of an answer to a question, or (c) it is undesirable in the interests of the Company or the good order of the AGM that the question be answered.
• 1. Please keep your questions and statements short and relevant to the business of the AGM to allow everyone who wishes to speak the chance to do so. It would be helpful if you could state your name before you ask your question. The Chair may nominate a representative to answer a specific question after the AGM or refer the question to the Company's website. As set out in the Notice of Annual General Meeting, questions may also be submitted by email to investorrelations@auctiontechnologygroup.com in advance of the meeting.

Website publication of audit concerns

• 1. Under section 527 of the Act, members meeting the threshold requirements set out in that section have the right to require the Company to publish on a website a statement 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 AGM; or (ii) any circumstance connected with an auditor of the Company ceasing to hold office since the previous meeting at which annual accounts and reports were laid in accordance with section 437 of the Act.
• 1. The Company may not require the shareholders requesting any such website publication to pay its expenses in complying with sections 527 or 528 of the Act. Where the Company is required to place a statement on a website under section 527 of the 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 AGM includes any statement that the Company has been required under section 527 of the Act to publish on a website.

Total voting rights

• 1. As at 1 December 2025, the latest practicable date prior to the date of this Notice, the Company's issued share capital consisted of 120,576,141 ordinary shares (excluding treasury shares), carrying one vote each and, therefore, the total number of voting rights in the Company as at 1 December 2025 was 120,576,141.
• 1. It is proposed that all votes on the resolutions at the AGM will be taken by way of a poll rather than on a show of hands. The Company considers that a poll is more representative of shareholders' voting intentions because votes are counted according to the number of shares held and all votes tendered are taken into account. The results of the voting will be announced through a Regulatory Information Service and will be published on our website www.auctiontechnologygroup.com as soon as reasonably practicable thereafter.

Documents on display

• 1. The following documents are available for inspection during normal business hours on any weekday (Saturdays, Sundays and public holidays in England and Wales excluded) at the Company's registered office, The Harlequin Building, 6th Floor, 65 Southwark Street, London SE1 0HR from the date of this Notice until the conclusion of the AGM and will be available for inspection at the place of the AGM for at least 15 minutes prior to and during the AGM:
• (a) copies of the Directors' service contracts; and
• (b) copies of the Non-Executive Directors' letters of appointment.

Information available on website

1. A copy of this Notice, and other information required by section 311A of the Act, can be found at www.auctiontechnologygroup.com along with a copy of the 2025 Annual Report which can be downloaded in PDF format.

Conduct at the AGM

1. Unacceptable behaviour will not be tolerated at the AGM and it will be dealt with appropriately by the Chair.

Communication

• 1. Any electronic address provided either in this Notice or any related documents (including the form of proxy) may only be used for the limited purposes specified herein and not to communicate with the Company by electronic means or for any other more general purpose.
• 1. Except as provided above, shareholders who have general enquiries about the AGM should call the Equiniti shareholder helpline on +44 371 384 2030. If calling from outside of the UK, please ensure the country code is used (no other methods of communication will be accepted). Calls to this number are charged at the standard rate per minute plus network extras. Lines are open from 8.30 a.m. to 5.30 p.m. Monday to Friday, excluding public holidays in England and Wales.