FORTERRA PLC

AGM Information • Mar 26, 2025

THIS DOCUMENT IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION

If you are in any doubt as to what action you should consult your stockbroker, bank manager, solicitor, accountant or other professional adviser authorised under the Financial Services and Markets Act 2000 (as amended) as soon as possible. If you have sold or otherwise transferred all of your ordinary shares in Forterra plc please pass this document, together with the accompanying documents, as soon as possible to the purchaser or to the stockbroker, bank or other agent through whom the sale or transfer was effected for transmission to the purchaser or transferee.

Forterra plc

(incorporated in England and Wales under number 09963666)

Notice of Annual General Meeting to be held at 12pm on Tuesday 20 May 2025

LETTER FROM THE CHAIRMAN

Forterra plc Registered Office: 5 Grange Park Court Roman Way Northampton NN4 5EA

26 March 2025

To the holders of ordinary shares in Forterra plc (the 'Company')

Dear Shareholder,

Annual General Meeting

I am writing to give you details of the 2025 Annual General Meeting (' AGM' or 'Meeting') of the Company to be held at 12pm on Tuesday 20 May 2025 at the Hilton Northampton, 100 Watering Lane, Collingtree, Northampton, NN4 0XW.

The following are enclosed with this letter:

• · Explanatory notes
• · Notice of AGM
• · Annual Report and Accounts

The formal notice convening the AGM is set out on pages 8 to 13 of this document. The explanatory notes to accompany the formal notice are set out on pages 5 to 7 of this document.

Action to be taken

If you wish to attend the AGM in person, please bring a form of ID (such as a driving licence or a passport) with you. Ordinary shareholders are also requested, whether or not they intend to attend the AGM in person, to submit a proxy vote:

• (a) If you hold your ordinary shares in certificated form, your proxy vote must be submitted at www.signalshares.com so as to have been received by the Company's registrars, not less than 48 hours (excluding weekends and public holidays) before the time appointed for the meeting or any adjournment of it.
• (b) If you hold shares in the Forterra Corporate Sponsored Nomines, your shares are held on your behalf by MUFG Corporate Markets Trustees (Nominees) Limited. Your proxy vote must be submitted at www.signalshares.com so as to have been received by MUFG Corporate Markets Trustees (Nomines) Limited not less than 72 hours (excluding weekends and public holidays) before the time appointed for the meeting or any adjournment of it. This means that the receipt by MUFG Corporate Markets Trustees (Nominees) Limited of all proxy appointments, in respect of members of the Corporate Sponsored Nominee, is 12pm on Thursday 15 May 2025.

By registering on the Signal shares portal at www.signalshares.com, you can manage your shareholding, including:

• · cast your vote
• · change your dividend payment instruction
• · update your address
• · select your communication preference
• (a) If you hold your ordinary shares in uncertificated form through CREST, appoint your proxy through the CREST proxy appointment service as detailed in note 3 on page 11.
• (b) If you are an institutional investor you may also be able to appoint a proxy mity platform, a process which has been agreed by the Company and approved by the Registrar. For further information regarding Proxymity, please go to www.proxymity.io.

Please note that the deadline for the receipt by our Registrars of all proxy appointments, in registered shareholders, is 12pm on Friday 16 May 2025.

The deadline for the receipt by MUFG Corporate Markets Trustees (Nominees) Limited of all proxy appointments, in respect of members of the Corporate Sponsored Nominee, is 12pm on Thursday 15 May 2025.

Recommendation

The Board is unanimous in its view that all the resolutions set out in the best interests of the Company and its shareholders as a whole. Accordingly, the Board recommends that you vote in favour of each of the resolutions. Where applicable, each Director intends to vote in favour of the resolutions in respect of their own beneficial shareholding, which in aggregate amounts to 373,503 ordinary shares at the date of this letter.

The results of the AGM will be announced through the Regulatory News Service ('RNS') and will be made available on the Company's website as soon as practicable following the closing of this year's AGM.

Thank you for your continued support.

Yours faithfully

Justin Atkinson Chairman

EXPLANATORY NOTES TO THE RESOLUTIONS

The following notes give an explanation of the proposed resolutions set out in the notice of Annual General Meeting.

Resolutions 1 to 15 are proposed as ordinary resolutions meaning that for each of those resolutions to be passed, more than half the votes cast must be in favour of the resolution. Resolutions 16 to 19 are proposed as special resolutions. This means that for each of those resolutions to be passed, at least threequarters of the votes cast must be in favour of the resolution.

ORDINARY RESOLUTIONS

RESOLUTION 1 - RECEIPT OF THE ANNUAL REPORT AND ACCOUNTS

Ordinary resolution 1 proposes the receipt and adoption of the Annual Report and Accounts, together with the reports of the Directors and the independent auditor, for the year ended 31 December 2024.

RESOLUTION 2 - RE-APPOINTMENT OF AUDITOR

The Company is required to appoint an auditor at each Annual General Meeting at which accounts are laid to hold office until the next Annual General Meeting. Ordinary resolution 2 therefore proposes that Ernst & Young LLP, the Company's existing auditor, be re-appointed as auditor to the Company until the conclusion of the Annual General Meeting in 2026 (at which the accounts for the year ending 31 December 2025 will be laid).

RESOLUTION 3 - REMUNERATION OF AUDITOR

The Audit Committee of the Company has responsibility for overseeing the relationship with the external auditor. This responsibility includes approving the external auditor's engagement letter and the audit fee. Ordinary resolution 3 seeks shareholder approval to authorise the Audit Committee to determine the remuneration of the auditor to the Company.

RESOLUTION 4 - FINAL DIVIDEND

A final dividend of 2,0 pence per ordinary share is recommended by the Directors for payment to shareholders on the register of members of the Company at the close of business on 13 June 2025. Subject to approval by the shareholders at the AGM of ordinary resolution 4, the dividend will be paid on 4 July 2025.

RESOLUTIONS 5 TO 12 - RE-ELECTION OF DIRECTORS

The Company's Articles of Association contain powers of removal, appointment, election and re-election of Directors and provide that each Director should retire at the Annual General Meeting if they had been a Director at each of the two preceding Annual General Meetings and were not reappointed by the Company in a general meeting at or since such meeting. A retiring Director shall be eligible for re-election. Furthermore, the Company's Articles of Association provide that any Director appointed by the Board is required to submit themselves for election at the Annual General Meeting following their appointment. Since the last Annual General Meeting, the Board will have appointed Nigel Lingwood as the Chair designate, with Justin Atkinson stepping down, and Aysegul Sabanci as a new Non-Executive Director both of which are dealt with by resolutions 5 and 12 respectively which proposes their election.

The Company supports the principles of good governance as laid out in the UK Corporate Governance Code and, accordingly, all the Executive and Non-Executive Directors will retire and put themselves forward for re-election annually at each Annual General Meeting.

Ordinary resolutions 5 to 12 therefore deal with the re-election of each Director. As described in further detail on page 112 of the 2024 Annual Report and Accounts, during 2024 the Board conducted an external evaluation of both its own effectiveness and that of its Committees. The evaluation process included the consideration of the effectiveness of each Director. In addition, the Chairman also met with each Director during the year to discuss their contribution to the Board and their personal development. These processes allow the Board to conclude that each Director makes a positive and effective contribution to the Board and demonstrates commitment to the role.

The biographies of each of the Directors can be found on pages 96 to 99 of the 2024 Annual Report and Accounts. The Board considers Katherine Innes Ker, Martin Sutherland, Vince Niblett, Gina Jardine and Aysegul Sabanci to be independent and there are no relationships or circumstances which are likely to affect their character or judgement. Nigel Lingwood is considered independent on appointment.

RESOLUTION 13 - APPROVAL OF REMUNERATION COMMITTEE REPORT

Ordinary resolution 13 seeks shareholder approval for the Remuneration Committee Report (excluding the Remuneration Policy set out on pages 134 to 144 of the 2024 Annual Report and Accounts) for the year ended 31 December 2024 (which is set out on pages 130 to 157 of the 2024 Annual Report and Accounts). This vote is advisory in nature, with the consequence that if this resolution is not passed, payments made or promised to Directors will not have to be repaid, reduced or withheld.

The Remuneration Policy is included in the 2024 Annual Report and Accounts for reference only, has not been amended and is not subject to a vote at this Annual General Meeting. The Remuneration Policy was approved by shareholders at the 2023 Annual General Meeting and, unless amended, will not again be tabled for binding shareholder approval until 2026.

RESOLUTION 14 - POLITICAL DONATIONS

Part 14 of the Companies Act 2006 (the 'Act'), amongst other things, prohibits the Company and its subsidiaries from making political donations or from incurring political expenditure in respect of a political party or other political organisation or an independent election candidate unless authorised by the Company's shareholders. Aggregate donations made by the Company and/or any of its subsidiaries of £5,000 or less in any 12-month period will not be covered by this prohibition. Neither the Company nor any of its subsidiaries has any intention of making any political donations or incurring any political expenditure. However, the Act defines 'political party', 'political organisation', 'political donation' and 'political expenditure' widely. For example, bodies, such as those concerned with policy review and law reform or with the representation of the business community or sections of it, which the Company and/ or its subsidiaries may see benefit in supporting, may be caught. Accordingly, the Company wishes to ensure that neither it nor its subsidiaries inadvertently commits any breach of the Act through the undertaking of routine activities, which would not normally be considered to result in the making of political donations and political expenditure being incurred. As permitted under the Act, ordinary resolution 15 covers the Company and extends to all companies which are subsidiaries of the Company at any time the authority is in place. The proposed authority will expire at the conclusion of the Annual General Meeting of the Company to be held in 2026 or, if earlier, 30 June 2026.

RESOLUTION 15 - RENEWAL OF AUTHORITY TO ALLOT SHARE CAPITAL

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 previous authority granted by shareholders at the Company's 2024 Annual General Meeting in respect of the allotment of shares will expire on the holding of the 2025 AGM or, if earlier, 30 June 2025. The Directors are now seeking renewal of that authority.

Accordingly, resolution 15 will be proposed as an ordinary resolution. Part (a) of resolution 15 grants new authority to allot shares and grant rights to subscribe for, or convert any security into, shares up to an aggregate nominal amount of £709,344. This amount represents approximately one third (33.33%) of the total issued ordinary share capital of the Company as calculated at 25 March 2025, being the latest practicable date before the publication of the notice of AGM.

In accordance with the institutional guidelines issued by the Investment Association, paragraph (b) of resolution 15 will also authorise Directors to allot, including the ordinary shares referred to in paragraph (a) of resolution 15, ordinary shares in connection with a pre-emptive offer by way of a rights issue to ordinary shareholders up to a maximum nominal amount of £1,418,688. This amount represents approximately two-thirds (66.67%) of the total issued ordinary share capital of the Company as calculated at 25 March 2025, the latest practicable date before the publication of the notice of AGM. The Directors have no present intention of exercising these authorities.

If given, these authorities will expire at the conclusion of the Annual General Meeting of the Company to be held in 2026 or, if earlier, 30 June 2026.

SPECIAL RESOLUTIONS

RESOLUTIONS 16 AND 17 - AUTHORITIES TO DISAPPLY PRE-EMPTION RIGHTS

The Directors require a power from shareholders to allot equity securities or sell treasury shares where they propose to do so for cash and otherwise than to existing shareholders pro-rata to their holdings. The previous powers granted by shareholders at the Company's 2024 Annual General Meeting in respect of the disapplication of pre-emption rights will expire on the holding of the 2025 AGM or, if earlier, 30 June 2025.

Resolutions 16 and 17 will both be proposed as special resolutions. If passed, these resolutions would authorise the Directors to allot equity shares for cash without first being required to offer such shares to existing shareholders. The combined effect of both resolutions will provide authority to issue up to (approximately) 24% of the issued ordinary share capital (excluding any treasury shares). Each resolution follows the guidance from the Pre-Emption Group's new Statement of Principles, published in November 2022.

In accordance with this updated guidance, the Company confirms that it intends to use:

• (a) no more than 10% of issued ordinary share capital in any one year, whether or not in connection with an acquisition or specified capital investment;
• (b) no more than an additional 10% of issued ordinary share capital in any one year, and only in connection with an acquisition or a specified capital investment; and
• (c) not more than 20% of any amounts used pursuant to (a) and (b) above, for the purposes of making a follow-on offer (in essence focused on retail investors) 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.

The Directors are proposing both resolutions as they consider it prudent to maintain the flexibility the resolutions provide individually and in aggregate. The Directors do not currently intend to make use of either element of the authority, and anticipate only making use of the additional 10% authority where the specific circumstances of the Company require. The aggregated authority contained in resolutions 16 and 17 will be limited to an aggregate nominal value of £510,728 (being approximately 24% of the total issued ordinary share capital of the Company as calculated at 25 March 2025, being the latest practicable date before the publication of the notice of AGM).

If given, these authorities will expire at the conclusion of the Annual General Meeting of the Company to be held in 2026 or, if earlier, 30 June 2026.

The Directors will have due regard to institutional guidelines and the Statement of Principles in relation to any exercise of these authorities.

RESOLUTION 18 - MARKET PURCHASE OF OWN SHARES

This resolution will give the Company authority to purchase its own shares in the market up to a limit of 10% of its issued ordinary share capital, being 21,280,338 ordinary shares as calculated at 25 March 2025, being the latest practicable date before the publication of the notice of AGM. The maximum and minimum prices are stated in the resolution. The Directors believe that it is advantageous for the Company to have the flexibility to make market purchases of its own shares.

It is the Directors' intention only to exercise the authority to purchase the Company's shares for the purpose of employee share schemes or (as in the case of the previous buyback programme) where it would increase the earnings per share of those ordinary shares that are not re-purchased. This power will only be used if the Directors consider that to do so would be in the best interests of shareholders generally. Save to the extent ordinary shares purchased are then held in treasury, any ordinary shares purchased in this way will be cancelled and the number of shares in issue will be reduced accordingly. The Company may hold in treasury any of its own ordinary shares that it purchases pursuant to the authority conferred by resolution 18. This would give the Company the ability to re-issue treasury shares quickly and cost-effectively and would provide the Company with greater flexibility in the management of its capital base.

As at 25 March 2025 (being the last practicable date before the publication of the notice of AGM) options to subscribe for a total of 11,246,374 ordinary shares were outstanding under the Company's employee share schemes representing 5.28% of the total issued share capital of the Company at that date and 5.87% of the issued share capital of the Company if the authority sought by resolution 18 were to be exercised in full.

Resolution 18 will be proposed as a special resolution and will expire at the conclusion of the Annual General Meeting of the Company to be held in 2026 or, if earlier, 30 June 2026.

RESOLUTION 19 - NOTICE PERIOD FOR GENERAL MEETINGS

Resolution 19 seeks to renew the authority granted at the Company's 2024 Annual General Meeting to allow the Company to hold general meetings (other than the Annual General Meeting) on 14 clear days' notice. This is in order to avoid the effect of section 307A of the Act which, without such a resolution, would have the effect of requiring the Company to give not less than 21 clear days' notice of general meetings. In order to be able to call a general meeting on less than 21 clear days' notice, the Company must make a means of electronic voting available to all shareholders for that meeting. The Company undertakes to meet the requirements for electronic voting in the Act before calling a general meeting on 14 clear days' notice. It is intended that this flexibility will only be used for non-routine business where the flexibility is merited by the business of the meeting and it is thought to be in the best interests of shareholders as a whole. If passed, the approval will be effective until the Company's Annual General Meeting to be held in 2026.

NOTICE OF ANNUAL GENERAL MEETING FORTERRA PLC

Notice is hereby given that the Annual General Meeting of Forterra plc (the 'Company') will be held at the Hilton Northampton, Watering Lane, Collingtree, Northampton, NN4 0WX at 12pm on Tuesday 20 May 2025 to consider and, if thought fit, to pass the following Resolutions, of which Resolutions 1 to 15 (inclusive) will be proposed as ordinary resolutions and Resolutions 16 to 19 (inclusive) will be proposed as special resolutions

ORDINARY RESOLUTIONS

• 1. THAT the Annual Report and Accounts for the year ended 31 December 2024 be received and adopted.
• 1. THAT Ernst & Young LLP be re-appointed as the auditor to the Company to hold office from the conclusion of this meeting until the conclusion of the next general meeting at which accounts are laid before the Company.
• 1. THAT the Audit Committee be authorised on behalf of the Board to determine the remuneration of the auditor to the Company.
• 1. THAT a final dividend of 2.0 pence per ordinary share be declared for the year ended 31 December 2024, payable to ordinary shareholders on the register at the close of business on 13 June 2025.
• 1. THAT Nigel Lingwood be elected as a Director of the Company.
• 1. THAT Neil Ash be re-elected as a Director of the Company.
• 1. THAT Ben Guyatt be re-elected as a Director of the Company.
• 1. THAT Katherine Innes Ker be re-elected as a Director of the Company.
• 1. THAT Gina Jardine be re-elected as a Director of the Company.
• 1. THAT Martin Sutherland be re-elected as a Director of the Company.
• 1. THAT Vince Niblett be re-elected as a Director of the Company.
• 1. THAT Aysegul Sabanci be elected as a Director of the Company.
• 1. THAT the Remuneration Committee Report (excluding the Remuneration Policy set out on pages 134 to 144 of the 2024 Annual Report and Accounts) for the vear ended 31 December 2024, as set out on pages of the 2024 Annual Report and Accounts, be approved.
• 1. THAT in accordance with sections 366 and 367 of the Companies Act 2006 (the 'Act'), the Company and all companies that are the Company's subsidiaries are authorised to:
  2. (a) make political donations to political parties or to independent election candidates not exceeding £100,000 in total;
• (b) make political donations to political organisations (other than political parties) not exceeding £100,000 in total: and
• (c) incur any political expenditure not exceeding £100,000 in total,

in each case, during the period beginning with the conclusion of this meeting and ending on the conclusion of the Annual General Meeting of the Company to be held in 2026 or, if earlier, 30 June 2026. For the purpose of this resolution 'political donation', 'political party', 'political organisation', 'independent election candidate' and 'political expenditure' are to be construed in accordance with sections 363, 364 and 365 of the Act

• 1. THAT the Directors be generally and unconditionally authorised for the purposes of section 551 of the Companies Act 2006 (the 'Act') to exercise all the powers of the Company to allot shares and grant rights to subscribe for, or convert any security into, shares:
  2. (a) up to an aggregate nominal amount of £709,344 (such amount to be reduced by the nominal amount allotted or granted under paragraph (b) of this resolution in excess of such sum); and
  3. (b) comprising equity securities (as defined in section 560 of the Act) up to an aggregate nominal amount of £1,418,688 (such amount to be reduced by any allotments or grants made under paragraph (a) of this resolution) in connection with or pursuant to an offer by way of a rights issue in favour of holders of ordinary shares in proportion (as nearly as practicable) to the respective number of ordinary shares held by them on the record date for such allotment (and holders of any other class of equity securities entitled to participate therein or if the Directors consider it necessary, as permitted by the rights of those securities), but subject to such exclusions or other arrangements as the Directors may consider necessary or appropriate to deal with fractional entitlements, treasury shares, record dates or legal, regulatory or practical difficulties which may arise under the laws or regulations of, or the requirements of any regulatory body or stock exchange in, any territory or to deal with any other matter whatsoever,

these authorisations to expire at the conclusion of the Annual General Meeting of the Company to be held in 2026 or, if earlier, 30 June 2026, save that the Company may before such expiry make any offer or enter into any agreement which would on might require shares to be allotted, or rights to be granted, after such expiry and the Directors may allot shares, or grant rights to subscribe for or to convert any security into shares, in pursuance of any such offer or agreement as if the authorisations conferred hereby had not expired.

• 1. THAT, subject to the passing of resolution 15, the Directors be given power pursuant to sections 570(1) and 573 of the Companies Act 2006 (the 'Act') to:
  2. (a) allot equity securities (as defined in section 560 of the Act) of the Company for cash pursuant to the authorisation conferred by resolution 15; and
  3. (b) sell ordinary shares (as defined in section 560(1) of the Act) 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 this power shall be limited to the allotment of equity securities for cash and the sale of treasury shares:

• (i) in connection with or pursuant to an offer of or invitation to acquire equity securities (but in the case of the authorisation granted under paragraph (b) of resolution 15, by way of a rights issue only) in favour of holders of ordinary shares in proportion (as nearly as practicable) to the respective number of ordinary shares held by such holders on the record date for such allotment or sale (and holders of any other class of equity securities entitled to participate therein or, if the Directors consider it necessary, as permitted by the rights of those securities) but subject to such exclusions or other arrangements as the Directors may consider necessary or appropriate to deal with fractional entitlements, treasury shares, record dates or legal, regulatory or practical difficulties which may arise under the laws or regulations of, or the requirements of any regulatory body or stock exchange in, any territory or to deal with any other matter whatsoever; and
• (ii) in the case of the authorisation granted under paragraph (a) of resolution 15 (or in the case of any transfer of treasury shares), and otherwise than pursuant to paragraph (i) of this resolution, up to an aggregate nominal amount of £212,803; and
• (iii) in the case of the authorisation granted under paragraph (a) of resolution 15 (or in the case of any transfer of treasury shares), and otherwise than pursuant to paragraph (i) or paragraph (ii) of this resolution, up to an aggregate nominal amount equal to 20% of any allotment of equity securities or sale of treasury shares from time to time under paragraph (ii) of this resolution, such power 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,

this power to expire at the conclusion of the Annual General Meeting of the Company to be held in 2026 or, if earlier, on 30 June 2026, save that the Company may at any time before the expiry of such power make any offer or enter into any agreement that would or might require equity securities to be allotted, or treasury shares to be sold, after the expiry of such power and the Directors may allot equity securities or sell treasury shares in pursuance of any such offer or agreement as if the power conferred hereby had not expired.

• 1. THAT, subject to the passing of resolutions 15 and 16. and in addition to the power granted by resolution 16, the Directors be given power pursuant to sections 570(1) and 573 of the Companies Act 2006 (the 'Act') to:
  2. (a) allot equity securities (as defined in section 560 of the Act) of the Company for cash pursuant to the authorisation conferred by paragraph (a) of resolution 15: and
  3. (b) sell ordinary shares (as defined in section 560(1) of the Act) 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 this power shall be:

• i. limited to the allotment of equity securities for cash and the sale of treasury shares up to an aggregate nominal amount of £212.803 and used only for the purposes of financing (or refinancing, if the power is to be used within twelve months after the original transaction) a transaction which the Directors have determined to be an acquisition or a specified 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, or for any other purposes as the Company in general meeting may at any time by special resolution determine; and
• ii. Ilimited to the allotment of equity securities and the sale of treasury shares (otherwise than pursuant to paragraph (i) of this resolution) up to a nominal amount equal to 20% of any allotment of equity securities and sale of treasury shares from time to time under paragraph (i) of this resolution, such power 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,

this power to expire at the conclusion of the Annual General Meeting of the Company to be held in 2026 or, if earlier, on 30 June 2026, save that the Company may at any time before the expiry of such power make any offer or enter into any agreement that would or might require equity securities to be allotted, or treasury shares to be sold, after the expiry of such power and the Directors may allot equity securities or sell treasury shares in pursuance of any such offer or agreement as if the power conferred hereby had not expired.

• 1. THAT the Company is generally and unconditionally authorised for the purposes of section 701 of the Companies Act (the 'Act') to make market purchases (within the meaning of section 693(4) of the Act) of any of its ordinary shares of £0.01 each on such terms and in such manner as the Directors may from time to time determine, provided that:
  2. (a) the maximum number of ordinary shares which may be purchased is 21,280,338, representing approximately 10% of the issued ordinary share capital of the Company as at 25 March 2025; and
  3. (b) the minimum price that may be paid for each ordinary share is the nominal value of such share which amount shall be exclusive of expenses (if any); and
  4. (c) the maximum price (exclusive of expenses) that may be paid for each ordinary share is an amount equal to the higher of:
     • (i) 105% of the average of the middle market quotations for the ordinary shares of the Company as derived from the Daily Official List of the London Stock Exchange for the five business days immediately preceding the day on which such share is contracted to be purchased; and
     • (ii) the higher of the price of the last independent trade and the highest current independent bid on the trading venues where the purchase is carried out; and
  5. (d) unless previously renewed, revoked or varied, this authority shall expire at the conclusion of the Annual General Meeting of the Company to be held in 2026 or, if earlier, on 30 June 2026; and
  6. (e) the Company may, before this authority expires, make a contract to purchase ordinary shares that would or might be executed wholly or partly after the expiry of this authority, and may make purchases of ordinary shares pursuant to it as if this authority had not expired.

• THAT a general meeting of the Company other than an Annual General Meeting of the Company may be called on not less than 14 clear days' notice.

By Order of the Board

Frances Tock Company Secretary

Forterra plc

Registered Office: 5 Grange Park Court Roman Way Northampton NN4 5EA

(Incorporated in England and Wales under number 09963666)

26 March 2025

NOTES

• 1. Only holders of ordinary shares are entitled to attend and vote at this meeting. Pursuant to Regulation 41 of the Uncertificated Securities Regulations 2001, entitlement to attend and vote at the meeting and the number of votes which may be cast thereat will be determined by reference to the register of members of the Company at the close of business on Friday 16 May 2025 (or, in the event of any adjournment, at close of business on the date which is two business days prior to the adjourned meeting). Changes to the register of members of the Company after the relevant deadline shall be disregarded in determining the rights of any person to attend and vote at the meeting or adjourned meeting.
• 1. A member entitled to attend and vote at the meeting may appoint one or more proxies to exercise all or any of the member's rights to attend, speak and vote at the meeting. A proxy need not be a member of the Company but must attend the meeting for the member's vote to be counted. lf a member appoints more than one proxy to attend the meeting, each proxy must be appointed to exercise the rights attached to a different share or shares held by the member. If a member wishes to appoint more than one proxy they may do so at www.signalshares.com. Proxies may also be appointed electronically through CREST or Proxymity. Details are given in the notes below. Appointing a proxy or any CREST proxy instruction or appointing a proxy via Proxymity does not preclude you from attending the Meeting and voting in person on any matters in respect of which the proxy or proxies is or are appointed but, in the event that and to the extent that you personally vote your shares, your proxy will not be entitled to vote and any vote cast by your proxy in such circumstances will be disregarded.
• 1. To be effective, the proxy vote must be submitted at www.signalshares.com so as to have been received by the Company's registrars, not less than 48 hours (excluding weekends and public holidays) before the time appointed for the meeting or any adjournment of it. Members of the Corporate Sponsored Nominee should submit their votes, so as to be received by MUFG Corporate Markets Trustees (Nominees) Limited, not less than 72 hours (excluding weekends and public holidays) before the time appointed for the meeting or any adjournment of it (see below). If you are a member of CREST, you may register the appointment of a proxy by using the CREST electronic proxy appointment service. CREST members who wish to appoint a proxy or proxies through the CREST electronic proxy appointment service may do so for the Annual General Meeting and any adjournment(s) thereof by using the procedures, and to the address, described in the CREST Manual (available via www.euroclear.com) subject to the provisions of the Company's Articles of Association. CREST personal members or other CREST sponsored members, and those CREST members who have appointed a voting 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. 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 and International specifications and must contain the information required for such instructions, as described in the CREST Manual. The message, regardless of whether it constitutes the appointment of a proxy or 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 issuer's agent (ID: RA10) by 12pm Friday 16 May 2025. 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 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. CREST members and, where applicable, their CREST sponsors or voting service provider(s) should note that Euroclear UK and International does not make available special procedures in CREST for any particular messages. 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(s), to procure that his 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 service provider(s) are referred, in particular, to those sections of the CREST Manual concerning practical limitations of the CREST system and timings. The Company may treat as invalid a CREST Proxy Instruction in the circumstances set out in Requlation 35(5)(a) of the Uncertificated Securities Regulations 2001.

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 the Registrar. For further information regarding Proxymity, please go to www.proxymity.io. Your proxy must be lodged by 12pm on Friday 16 May 2025 in order to be considered valid or, if the meeting is adjourned, by the time which is 48 hours (excluding weekends and public holidays) before the time of the adjourned meeting. 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. An electronic proxy appointment via the Proxymity platform may be revoked completely by sending an authenticated message via the platform instructing the removal of your proxy vote.

2. If you hold your shares in the Forterra Corporate Sponsored Nominee, your shares are held on your behalf in the name of MUFG Corporate Markets Trustees (Nominees) Limited, who are the registered shareholder. You can tell them how you want the votes in respect of your shares to be cast at the AGM by completing a Form of Instruction. This can be done electronically at www.signalshares.com or by completing and returning a hard copy Form of Instruction. You can request a hard copy form from MUFG Corporate Markets by emailing

shareholderenquiries@cm.mpms.mufg.com or calling on Tel: 0371 664 0391. Calls are charged at the standard geographic rate and will vary by provider. Calls outside the United Kingdom will be charged at the applicable international rate. Lines are open between 09:00 - 17:30, Monday to Friday excluding public holidays in England and Wales. To be effective, in either case the Form of Instruction must be received by MUFG Corporate Markets, PXS 1, Central Square, 29 Wellington Street, Leeds, LS1 4DL (together with any power of attorney or other authority under which it is signed or a notarially certified copy of such power or authority) by no later than 12 pm on 15 May 2025 (or if the AGM is adjourned, 72 hours before the time fixed for the adjourned AGM, excluding any UK non-working days). MUFG Corporate Markets Trustees (Nominees) Limited will appoint the chair of the meeting as its proxy to cast your votes. The appointed proxy may also vote or abstain from voting as they think fit on any other business (including amendments to resolutions) which may properly come before the meeting. If you wish to attend, and/or vote at the AGM, or appoint someone else to attend the AGM and vote on your behalf, you must confirm this to MUFG Corporate Markets by email to

Nominee.Enquiries@cm.mpms.mufg.com or in writing by contacting MUFG Corporate Markets, Central Square, 29 Wellington Street, Leeds, LS1 4DL by no later than 12 pm on 15 May 2025 (or if the AGM is adjourned, 72 hours before the time fixed for the adjourned AGM, excluding any UK non-working days).

• 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.
• 1. Any person to whom this notice of AGM is sent who is a person nominated under section 146 of the Companies Act 2006 to enjoy information rights (a 'Nominated Person') may have a right under an agreement between him/her and the member by whom he/she was nominated, to be appointed (or to have someone else appointed) as a proxy for the meeting. If a Nominated Person has no such right or does

not wish to exercise it, he/she may have a right under such an agreement, to give instructions to the member as to the exercise of voting rights. The statement of the rights of the members in relation to the appointment of proxies does not apply to Nominated Persons. Those rights can only be exercised by members of the Company.

• 1. Under section 527 of the Companies Act 2006 (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 that the members propose to raise at the Annual General Meeting relating to: (i) the audit of the Company's accounts (including the auditor's 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 to the Company ceasing to hold office since the previous meeting at which annual reports and accounts were laid in accordance with section 437 of the Act. The Company may not require the members 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 auditor not later than the time when it makes the statement available on the website. The business which may be dealt with at the meeting includes any statement that the Company has been required under section 527 of the Act to publish on a website.
• 1. Any member attending the AGM has the right to ask questions. The Company must cause to be answered any such questions relating to the business being dealt with at the meeting but no such answer need be given if (a) to do so would interfere unduly with the preparation of the meeting 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 meeting, that the question be answered.
• 1. Except as expressly stated, members who wish to communicate with the Company in relation to the AGM should do so in writing either to the Company Secretary at the registered office address or to the Company's registrar, MUFG Corporate Markets, Central Square, 29 Wellington Street, Leeds, LS1 4DL. No other methods of communication will be accepted. In particular, you may not use any electronic address (within the meaning of section 333(4) of the Companies Act 2006) provided either in this notice of meeting or in any related documents to communicate with the Company for any purposes other than those expressly stated.

NOTICE OF MFFTING 2025

1. Copies of the following documents will be available for inspection at the registered office of the Company, 5 Grange Park Court, Roman Way, Northampton NN4 5EA during normal business hours on any weekday from the date of this notice of AGM until the close of the Meeting (Saturdays, Sundays and public holidays excepted) and will be available for inspection at the place of the AGM convened for that day from at least 15 minutes prior to the appointed time for the meeting until the meeting is concluded or adjourned:

(a) copies of the Executive Directors' service agreements; and

(b) copies of the letters of appointment of each Non-Executive Director.

• 1. A copy of this notice of AGM and the other information required by section 311A of the Companies Act 2006 can be found at www.forterraplc.co.uk
• 1. As at 25 March 2025, being the latest practicable date before the publication of the notice of AGM, there are 212,803,389 ordinary shares of £0.01 each in issue and the total voting rights of the Company are therefore 212,803,389.
• 1. If you need help with voting online, or require a paper proxy form or Form of Instruction, please contact our Registrar, MUFG Corporate Markets, by email at shareholderenquiries@cm.mpms.mufg.com, or you may call on 0371 664 0391 if calling from the UK, or +44 (0) 371 664 0391 if calling from outside of the UK. Calls are charged at the standard geographic rate and will vary by provider. Calls outside the United Kingdom will be charged at the applicable international rate. Lines are open between 9 am -5.30 pm, Monday to Friday excluding public holidays in England and Wales. Submission of a Proxy vote shall not preclude a member from attending and voting in person at the meeting in respect of which the proxy is appointed or at any adjournment thereof. Unless otherwise indicated on the Form of Proxy, CREST, Proxymity or any other electronic voting instruction, the proxy will vote as they think fit or, at their discretion, withhold from voting.