NOTICE OF ANNUAL GENERAL MEETING 2021

Thursday 6 May 2021 at 11.00 am To be held at John Laing Group plc’s registered office at 1 Kingsway, WC2B 6AN

THIS DOCUMENT IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION. If you are in any doubt as to any aspect of the proposals referred to in this document or as to the action you should take, you should seek your own advice from an independent stockbroker, solicitor, accountant, or other professional adviser.

If you have sold or otherwise transferred all of your Ordinary Shares in John Laing Group plc, please pass this document together with the accompanying documents to the purchaser or transferee, or to the stockbroker, bank or other agent through whom the sale or transfer was effected, so they can pass these documents to the person who now holds the shares. Dear Shareholder, 30 March 2021 Annual General Meeting 2021 I am writing to you with details of the Annual General Meeting (‘AGM’) of John Laing Group plc (‘John Laing’ or the ‘Company’) to be held at the Company’s registered office at 1 Kingsway, London WC2B 6AN on 6 May 2021 at 11.00 am. The formal notice of the AGM (the ‘Notice’) on pages 3 to 4 of this document sets out the business to be considered at the meeting. Explanatory notes on all of the business to be considered are set out on pages 5 to 7. The Directors of the Company (the ‘Directors’) consider each of the resolutions to be in the best interests of the Company’s shareholders as a whole and unanimously recommend shareholders vote in favour of the resolutions. They intend to do the same in respect of their own shareholdings. The health and well-being of our shareholders and colleagues is our priority in making the arrangements for the AGM. Unfortunately, given the ongoing COVID-19 pandemic, we are unable to hold our AGM in the usual way. At the time of this letter, based on the UK Government’s restrictions on social distancing and prohibition on public gatherings, and in the interests of protecting the health and safety of our shareholders, Directors and employees, it will not be possible for shareholders to attend the AGM in person. Please do not travel to the meeting, as you will not be permitted to enter the building. The Company will ensure that the legal requirements of the meeting, in accordance with its Articles of Association, are satisfied through the presence of a minimum number of two Director shareholders and/or employee shareholders (meaning the physical attendance in person of two shareholders). The format of the meeting will be purely functional and the Company’s advisers will not be present. The AGM will comprise only the formal votes for each resolution set out in the Notice. Given the current restrictions and the uncertainty around whether circumstances will change such that shareholders will be able to attend the AGM, we strongly recommend that all shareholders appoint the Chairman of the meeting as their proxy. This will ensure that your vote will be counted. To facilitate shareholder engagement, we will hold the meeting via a telephone conference facility, and in this Notice are log-in details through which you can access this. You will also be able to submit any questions that you may have both in advance of, and during the meeting. Further details of how to do so are included on page 9 of this Notice. If the Government guidance changes before the meeting takes place, we will adapt arrangements including if possible to welcome shareholders to the AGM, within safety constraints and in accordance with government guidelines. We will notify any changes to the arrangements for the AGM as early as is possible before the date of the meeting. Shareholders should continue to monitor the Company’s website and announcements for any updates in relation to the AGM. Voting procedures For the reasons set out above, shareholders will not be able to attend the AGM and we strongly advise you to submit your vote by proxy. To do so, please complete and return the enclosed Form of Proxy in the prepaid envelope provided so as to reach the Company’s Registrar, Equiniti, no later than 11.00 am on 4 May 2021. Alternatively, you may register your vote online by visiting Equiniti’s website at www.sharevote.co.uk where you will need to enter the Voting ID, Task ID and Shareholder Reference Number which are on the enclosed Form of Proxy, or, if you already have a portfolio registered with Equiniti, you may register your vote online by logging on to www.shareview.co.uk using your usual user ID and password. If you are a member of CREST, you may register the appointment of a proxy by using the CREST electronic proxy appointment service. Further details are given in the notes to this Notice. All resolutions proposed at the meeting will be decided by poll in accordance with current recommended best practice. The results of the voting on the proposed resolutions will be published on our website shortly after the meeting is concluded on 6 May 2021. The Directors and I thank you for your continued support. Yours sincerely,

Will Samuel Chairman

2 John Laing Group plc Notice of 2021 Annual General Meeting

Notice is hereby given that the 2021 Annual General Meeting (the ‘AGM’) of John Laing Group plc (the ‘Company’) will be held at the Company’s registered office at 1 Kingsway, London WC2B 6AN on Thursday 6 May 2021 at 11.00 am. Shareholders will be asked to consider and, if thought fit, approve the resolutions below. Resolutions 1 to 16 will be proposed as ordinary resolutions and will be passed if a majority of the votes cast (in person or by proxy) are in favour. Resolutions 17 to 21 will be proposed as special resolutions and will be passed if at least three-quarters of the votes cast (in person or by proxy) are in favour. Ordinary resolutions 1. To receive and consider the Annual Report and Accounts of the Company for the year ended 31 December 2020 (the ‘Accounts’), together with the report of the Directors and auditor thereon. 2. To declare a final dividend of 7.82 pence per Ordinary Share for the year ended 31 December 2020, as recommended by the Directors, to be paid on 14 May 2021 to shareholders on the Company’s register of members at the close of business on 30 April 2021. 3. To approve the Directors’ Remuneration Report for 2020 (excluding the part containing the Directors’ Remuneration Policy) as set out on pages 108 to 122 of the Accounts, in accordance with section 439 of the Companies Act 2006 (the ‘Act’). 4. To re-elect Will Samuel as Director. 5. To re-elect Andrea Abt as Director. 6. To re-elect Jeremy Beeton as Director. 7. To re-elect Philip Keller as Director. 8. To re-elect David Rough as Director. 9. To elect Ben Loomes as Director. 10. To elect Rob Memmott as Director. 11. To elect Leanne Bell as Director. 12. To elect Lisa Stone as Director. 13. To reappoint Deloitte LLP as the Company’s auditor to hold office until the conclusion of the next general meeting of the Company at which accounts are laid. 14. To authorise the Directors to agree the auditor’s remuneration. 15. That, pursuant to section 551 of the Act, the Directors be generally and unconditionally authorised to allot shares in the Company and to grant rights to subscribe for or to convert any security into shares in the Company: (i) up to an aggregate nominal amount of £16,441,687.87; and (ii) comprising equity securities, as defined in section 560 of the Act, up to an aggregate nominal amount of £32,883,375.73 (including within such limit any shares or rights issued or granted under (i) above) in connection with an offer by way of a rights issue: (A) to holders of Ordinary Shares in proportion (as nearly as may be practicable) to their existing holdings; and (B) to people who are holders of other equity securities if this is required by the rights of those securities or, if the Directors consider it necessary, as permitted by the rights of those securities; and so that the Directors may impose any limits or restrictions and make any arrangements which they consider necessary or appropriate to deal with treasury shares, fractional entitlements, record dates, legal, regulatory or practical problems in, or under the laws of, any territory or any other matter, such authorities to expire (unless previously renewed, varied or revoked by the Company in general meeting) at the close of the Annual General Meeting of the Company in 2022 (or, if earlier, at the close of business on 6 August 2022) provided that, in each case, the Company may make offers and enter into agreements during the relevant period which would or might require shares in the Company to be allotted, or rights to subscribe for or convert any security into shares to be granted, after the authority expires and the Directors may allot shares in the Company and grant rights under any such offer or agreement as if the authority had not expired. 16. That, in accordance with sections 366 and 367 of the Act, the Company, and any company which is or becomes a subsidiary of the Company, at any time up to the end of the Annual General Meeting of the Company in 2022, be generally authorised to: (i) make political donations to political parties and/or independent election candidates not exceeding £50,000 in total; (ii) make political donations to political organisations other than political parties not exceeding £100,000 in total; and (iii) incur political expenditure not exceeding £50,000 in total. For the purposes of this authority the terms ‘political donation’, ‘political parties’, ‘independent election candidates’, ‘political organisation’ and ‘political expenditure’ have the meanings given by sections 363 to 365 of the Act. Special resolutions 17. That, subject to the passing of resolution 15 and in place of all existing powers, the Directors be generally empowered, pursuant to section 570 and section 573 of the Act, to allot equity securities (as defined in the Act) for cash under the authority given by resolution 15 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, such power to be limited: (i) to the allotment of equity securities or the sale of treasury shares in connection with an offer of equity securities (but in the case of the authority granted under resolution 15(ii), by way of a rights issue only): (A) to holders of Ordinary Shares in proportion (as nearly as may be practicable) to their existing holdings; and (B) to people who are holders of other equity securities, if this is required by the rights of those securities or, if the Directors consider it necessary, as permitted by the rights of those securities, and so that the Directors may impose any limits or restrictions and make any arrangements which they consider necessary or appropriate to deal with treasury shares, fractional entitlements, record dates, legal, regulatory or practical problems in, or under the laws of, any territory or any other matter; and

Notice of Annual General Meeting 2021 3 Notice of Annual General Meeting continued

(ii) to the allotment of equity securities or sale of treasury shares (otherwise than under paragraph (i) above) up to a nominal amount of £2,466,253.18, being approximately 5% of the issued Ordinary Share capital of the Company as at 19 March 2021, such power to expire (unless previously renewed, varied or revoked by the Company in general meeting) at the end of the Annual General Meeting in 2022 of the Company (or, if earlier, at the close of business on 6 August 2022) but, in each case, prior to its expiry the Company may make offers, and enter into agreements, which would, or might, require equity securities to be allotted (and treasury shares to be sold) after the power expires and the Directors may allot equity securities (and sell treasury shares) in pursuance of any such offer or agreement as if the power had not expired. 18. That, in addition to the powers granted in resolution 17 and subject to the passing of resolution 15, the Directors be generally empowered, pursuant to section 570 and section 573 of the Act to allot equity securities (as defined in the Act) for cash under the authority given by resolution 15 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, such power to be: (i) limited to the allotment of equity securities or sale of treasury shares up to a nominal amount of £2,466,253.18, being approximately 5% of the issued Ordinary Share capital of the Company as at 19 March 2021; and (ii) used only for the purposes of financing (or refinancing, if the power is to be used within six 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, such power to expire (unless previously renewed, varied or revoked by the Company in general meeting) at the end of the Annual General Meeting in 2022 of the Company (or, if earlier, at the close of business on 6 August 2022) but, in each case, prior to its expiry the Company may make offers, and enter into agreements, which would, or might, require equity securities to be allotted (and treasury shares to be sold) after the power expires and the Directors may allot equity securities (and sell treasury shares) in pursuance of any such offer or agreement as if the power had not expired. 19. That the Company is hereby generally and unconditionally authorised in accordance with section 701 of the Act to make market purchases (within the meaning of section 693(4) of the Act) of Ordinary Shares of 10 pence each in the capital of the Company provided that: (i) the maximum number of Ordinary Shares hereby authorised to be purchased is 49,325,063; (ii) the minimum price (exclusive of expenses) which may be paid for an Ordinary Share is 10 pence per share; (iii) the maximum price (exclusive of expenses) which may be paid for an Ordinary Share is, in respect of an Ordinary Share contracted to be purchased on any day, the higher of (A) an amount equal to 105% of the average of the middle market quotations of an Ordinary Share of the Company derived from the Daily Official List for the five business days immediately preceding the day on which the Ordinary Share is contracted to be purchased and (B) 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; (iv) the authority hereby conferred shall expire (unless previously renewed, varied or revoked by the Company in general meeting) at the close of the Annual General Meeting of the Company in 2022 (or, if earlier, at the close of business on 6 November 2022); and (v) during the relevant period the Company may make a contract to purchase Ordinary Shares under this authority prior to the expiry of such authority which will or may be executed wholly or partly after the expiry of such authority and may make a purchase of Ordinary Shares in pursuance of any such contract as if the authority had not expired. 20. That, with effect from the close of the AGM, the Articles of Association of the Company produced to the AGM, and initialled by the Chairman for the purposes of identification, be adopted as the Articles of Association of the Company in substitution for, and to the exclusion of, the existing Articles of Association of the Company. 21. That the Directors be authorised to call general meetings of the Company (other than an Annual General Meeting) on not less than 14 clear days’ notice. By order of the Board

Clare Underwood Group Company Secretary 30 March 2021 Registered Office: 1 Kingsway London WC2B 6AN Registered in England and Wales No. 05975300

4 John Laing Group plc Explanatory Notes to the Resolutions

Resolutions 1 and 2: Annual Report & Accounts 2020 and final dividend The first resolution at the AGM relates to the receipt and consideration of the Company’s Annual Report & Accounts and the reports of the Directors and external auditor for the financial year ended 31 December 2020. These can be viewed on the John Laing website: www.laing.com Separately, shareholders will be asked to approve the payment of a base dividend of 3.76 pence per share plus a special dividend of 4.06 pence per share, together the final dividend of 7.82 pence per Ordinary Share in respect of the year ended 31 December 2020, as recommended by the Directors. Further information on the dividend and the Company’s dividend policy can be found on page 7 of the Accounts. If the recommended final dividend is approved, it is proposed that it will be paid on 14 May 2021 to shareholders on the Company’s register of members at the close of business on 30 April 2021 (the record date). Resolution 3: Directors’ Remuneration Report The Company believes that the Directors’ Remuneration Report, which may be found on pages 108 to 122 of the Accounts, demonstrates the link between our Remuneration Policy and practice, and the Company’s strategy and performance. The Directors consider that appropriate Executive remuneration plays a vital part in helping to achieve the Company’s overall objectives and, accordingly, and in compliance with the relevant legislation, shareholders will be invited to approve the Directors’ Remuneration Report. The Directors’ Remuneration Report provides details of the remuneration paid to the Directors during the year ended 31 December 2020. The vote on the Directors’ Remuneration Report is advisory in nature in that payments made or promised to Directors will not have to be repaid, reduced or withheld in the event that the resolution is not passed. This vote will be in respect of the content of the Directors’ Remuneration Report and not specific to any Director’s level or terms of remuneration. Resolutions 4 to 12: Re-election and election of Directors Resolutions 4 to 8 propose the re-election of five, and Resolutions 9 to 12 propose the election of four, of the Directors of the Company in accordance with the Articles of Association of the Company and the 2018 UK Corporate Governance Code (the ‘Code’). The re-election and election of these Directors will take effect from the conclusion of the AGM. Shareholders’ approval is sought (Resolutions 9 to 12) for the election of the following Directors, who now stand for election by shareholders in accordance with the Code: • Ben Loomes as Director. Ben was appointed by the Board as a Director on 8 May 2020; • Rob Memmott as Director. Rob was appointed by the Board as a Director on 6 January 2021; • Leanne Bell as Director. Leanne was appointed by the Board as a Director on 1 December 2020; and • Lisa Stone as Director. Lisa was appointed by the Board as a Director on 1 December 2020. Biographical details for each of the Directors offering themselves for re-election or election are set out on pages 82 to 85 of the Accounts, and specifically for those seeking election, on page 10 of this Notice. The Board believes this information is sufficient to enable shareholders to make an informed decision on the proposed re-election or election of the Directors. Following the annual Board evaluation conducted for 2020, the Board considers that the contribution, commitment and performance of each of the Directors proposed for re-election and election continues to be valuable and effective and that it is appropriate for them to continue to serve as Directors of the Company. Each Director demonstrates the level of commitment required in connection with their role (including making sufficient time available for Board and committee meetings and other duties). The Board believes that the skills and experience of each Director, as outlined in their biography, are important to the Company’s long-term sustainable success and will be of benefit to the Board and the Company. In accordance with the Code, the Board has reviewed the independence of its Non-executive Directors and has determined that they remain fully independent of management and that there are no relationships or circumstances likely to affect their character or judgement. Further information on the 2020 Board evaluation and the independence of the Directors can be found on pages 94 to 95 of the Corporate Governance Report in the Accounts. Resolutions 13 and 14: External auditor Resolutions will be proposed to reappoint Deloitte LLP as external auditor until the conclusion of the Annual General Meeting of the Company in 2022 and to authorise the Directors to determine their remuneration. Resolution 15: Directors’ authority to allot shares Further to the provisions of section 551 of the Act, shareholders will be asked to grant the Directors the authority to allot shares, grant rights to subscribe for shares, or convert any security into shares in the Company (the ‘new authority’). The new authority would be valid until the close of the Annual General Meeting of the Company in 2022 or, if earlier, the close of business on 6 August 2022. If passed, the new authority would be limited to an aggregate nominal value of £16,441,687.87, or 164,416,879 Ordinary Shares, representing approximately one-third of the Company’s issued Ordinary Share capital as at 19 March 2021 being the latest practicable date prior to the publication of this Notice save that, if the new authority were used in connection with a pre-emptive offer to existing shareholders by way of a rights issue (with exclusions to deal with fractional entitlements to shares and overseas shareholders to whom the rights issue cannot be made due to legal and practical problems), it would be limited to an aggregate nominal value of £32,883,375.73 or 328,833,757 Ordinary Shares, representing approximately two-thirds of the Company’s issued share capital as at 19 March 2021. The Company does not hold any treasury shares as at 19 March 2021, being the latest practicable date prior to the publication of this Notice. In each case the number of shares to which the new authority applies is in addition to those committed to employee share plans. At the date this document was despatched to the shareholders, the Directors had no intention to exercise this new authority, although they considered its grant to be appropriate in order to preserve maximum flexibility for the future. The Directors intend to seek the approval of shareholders to renew this authority annually.

Notice of Annual General Meeting 2021 5 Explanatory Notes to the Resolutions continued

Resolution 16: Political donations The Act restricts companies from making donations to political parties, other political organisations or independent election candidates and from incurring political expenditure, in each case without shareholders’ consent. It is not proposed or intended to alter the Company’s policy of not making such donations or incurring such expenditure, within the normal meaning of that expression. However, the Act contains some potentially broad definitions and it may be that some of the activities of the Company and its subsidiaries fall within these definitions and, without the necessary authorisation, this could inhibit the Company’s ability to communicate its views effectively to political audiences and to relevant interest groups. Accordingly, the Company believes that the authority contained in this resolution is necessary to allow it and its subsidiaries to fund activities which it is in the interests of shareholders that the John Laing group of companies should support. Such authority will enable the Company and its subsidiaries to be sure that they do not unintentionally commit a technical breach of the Act. Any expenditure which may be incurred under authority of this resolution will be disclosed in next year’s Annual Report. It is the Company’s intention to seek renewal of this resolution on an annual basis. During 2020, no donations were made by the Company or any of its subsidiaries for political purposes. Resolutions 17 and 18: Waiver of pre-emption rights Under section 561(1) of the Act, if the Directors wish to allot Ordinary Shares, or grant rights to subscribe for, or convert securities into, Ordinary Shares, or sell treasury shares for cash (other than pursuant to an employee share scheme) they must in the first instance offer them to existing shareholders in proportion to their holdings. There may be occasions, however, when the Directors need the flexibility to finance business opportunities by the allotment of shares without a pre-emptive offer to existing shareholders. This cannot be done under the Act unless the shareholders have first waived their pre-emption rights, so two resolutions will be proposed to waive these statutory pre-emption provisions for a period ending at the close of the Annual General Meeting of the Company in 2022 or, if earlier, at the close of business on 6 August 2022. In line with the Pre-Emption Group’s Statement of Principles, the first resolution will empower the Directors to allot equity securities for cash consideration either: (i) by way of a rights or other pre-emptive issue (provided that the Directors may make appropriate exclusions and other arrangements to resolve legal or practical problems which might, for example, arise in relation to overseas shareholders); or (ii) by way of a non-pre-emptive issue (which includes the sale on a non-pre-emptive basis of any shares held in treasury), limited to an aggregate nominal value of £2,466,253.18, or a total of 24,662,531 Ordinary Shares, representing approximately 5% of the Company’s issued share capital as at 19 March 2021. The second resolution will empower the Directors to allot equity securities on a non-pre-emptive basis (which includes the sale on a non-pre-emptive basis of any shares held in treasury) representing a further 24,662,531 Ordinary Shares or 5% of the Company’s issued share capital to be used only for the purposes of financing (or refinancing, if the power is to be used within six 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 in March 2015. Both of these resolutions are conditional on resolution 15 being passed. In accordance with the Pre-Emption Group’s Statement of Principles, the Directors confirm that they do not intend to issue shares for cash presenting more than 7.5% of the Company’s issued share capital in any rolling three-year period to those who are not existing shareholders, save in connection with an acquisition or specified capital investment (as described above) without prior consultation with shareholders. At the date this document was approved by the Board, the Directors had no intention to exercise these authorities, although they considered their grants to be appropriate in order to preserve maximum flexibility for the future. The Directors intend to seek the approval of shareholders to renew these authorities annually. Resolution 19: Authority to purchase own shares Shareholders will be asked to authorise the market purchase by the Company of a proportion of its issued Ordinary Share capital, subject to the limits referred to below. The Directors consider it prudent to be able to act at short notice if circumstances warrant. In considering the purchase of Ordinary Shares, the Directors will follow the procedures laid down in the Act and will take into account cash resources, capital requirements and the effect of any purchase on gearing levels and on Net Asset Value per share and earnings per share. They will only consider exercising the authority when satisfied that it would be in the best interests of the Company and its shareholders as a whole to do so, having first considered any other investment opportunities open to the Company. Any purchase by the Company of its own shares pursuant to this authority will be paid for out of distributable profits. Any shares which are repurchased will be dealt with in accordance with section 724 of the Act. The authority, which will expire at the close of the Annual General Meeting of the Company in 2022 or, if earlier, at the close of business on 6 November 2022, will be limited to the purchase of 49,325,063 Ordinary Shares, representing approximately 10% of the Company’s issued Ordinary Share capital as at 19 March 2021. The maximum price (excluding expenses) to be paid per Ordinary Share on any occasion will be restricted to the higher of: (i) 105% of the average of the middle market quotations of an Ordinary Share of the Company derived from the London Stock Exchange Daily Official List for the five business days immediately preceding the day on which the Ordinary Share is contracted to be purchased; and (ii) an amount equal to the higher of the price of the last independent trade of an Ordinary Share and the highest current independent bid for an Ordinary Share as derived from the London Stock Exchange Trading System. The minimum price will be 10 pence per Ordinary Share, which is the nominal value of the shares. The maximum number of shares and the price range are stated merely for the purposes of compliance with statutory requirements in seeking this authority and should not be taken as any indication of the terms upon which the Company intends to make such purchases. At the date this document was approved by the Board, the Directors had no intention to exercise this authority. Any purchases of Ordinary Shares would be by means of market purchases through the London Stock Exchange. Any shares purchased under this authority may either be cancelled or held as treasury shares. Treasury shares may subsequently be cancelled, sold for cash or used to satisfy options issued to employees pursuant to the Company’s employee share schemes.

6 John Laing Group plc The Company’s issued share capital as at 19 March 2021 (the latest practicable date prior to the publication of this document) was 493,250,636 Ordinary Shares of 10 pence each. The total number of awards over Ordinary Shares which were outstanding as at 19 March 2021 was approximately 3,901,937 which represents approximately 0.79% of the issued share capital of the Company at that date. If the maximum number of 49,325,063 shares were to be purchased by the Company (under resolution 19), the adjusted issued share capital would be 443,925,573 and the awards outstanding would represent approximately 0.88% of the adjusted issued share capital. Resolution 20: Adoption of new Articles of Association It is proposed that the Company adopt new Articles of Association (the ‘New Articles’) to update the Company’s current Articles of Association (the ‘Existing Articles’), which were adopted in 2015. The proposed updates reflect developments in market practice and legal and regulatory requirements, provide additional flexibility and clarify certain aspects of the operation of the Existing Articles where necessary or appropriate. The principal changes to the Company’s Existing Articles are summarised in Appendix 1 to this Notice. Other changes, which are of a minor, technical, procedural or clarificatory nature, have not been summarised in Appendix 1. Subject to the passing of resolution 20, the New Articles will take effect from the conclusion of the AGM. A copy of the New Articles and a copy of the Existing Articles marked up to show all proposed changes will be available for inspection at www.laing.com, and, as noted on page 9, at the registered office of the Company during normal business hours on any business day from the date of this Notice until the conclusion of the AGM and at the AGM venue for at least 15 minutes prior to and during the AGM. Resolution 21: Notice of General Meetings The Act sets the notice period required for general meetings of the Company at 21 days unless shareholders approve a shorter notice period, which cannot however be less than 14 clear days. This resolution seeks such approval. It is intended that the shorter notice period would not be used as a matter of routine for such meetings but only where the flexibility is merited by the business of the meeting and is thought to be in the interests of shareholders as a whole. The Company undertakes to meet the requirements for electronic voting in the Act before calling a general meeting on 14 clear days’ notice. If given, the approval will be effective until the Company’s next Annual General Meeting, when it is intended that a renewal of the approval will be proposed.

Notice of Annual General Meeting 2021 7 Shareholder Notes

Right to attend and vote at the AGM In view of the public safety measures currently imposed by the UK Government, the AGM will be run as a closed meeting. Neither shareholders nor proxies (other than the Chairman of the AGM) will be able to attend in person. The Company will, however, ensure that the legal requirements to hold the AGM are met by the attendance of a minimum number of director shareholders and/or employee shareholders. All valid proxy votes (whether submitted electronically or in hard copy form) will be included in the poll to be taken at the AGM. Shareholders are referred to page 9 for details of how to attend the AGM. The right to vote at the AGM is determined by reference to the Company’s register of members. Only a member entered in the register of members at 6.30 pm on 4 May 2021 (or, if this AGM is adjourned, in the register of members at 6.30 pm two business days before the time of any adjourned meeting) is entitled to vote at the AGM and a member may vote in respect of the number of Ordinary Shares registered in the member’s name at that time. Changes to the entries in the register of members after that time shall be disregarded in determining the rights of any person to vote at the AGM. Right to ask questions Under section 319A of the Companies Act 2006, shareholders have the right to ask questions at the AGM. The Company must cause to be answered any such questions relating to the business of the meeting but no such answer need be given if (i) to do so would interfere unduly with the preparation for the meeting or involve the disclosure of confidential information, (ii) the answer has already been given on a website in the form of an answer to a question, or (iii) it is undesirable in the interests of the Company or the good order of the meeting that the question be answered. Questions Questions for the Board can be posed to the Board during the meeting. To enable the Board to address as many shareholder questions as possible, we would request that where possible, questions are submitted in advance of the AGM to the email address [email protected]. If multiple questions on the same topic are received in advance of the meeting, the Chairman may choose to provide a single answer to address shareholder queries on the same topic. The Chairman may also nominate a representative to answer a specific question after the meeting or refer the questioner to the Company’s website. Right to appoint a proxy Any shareholder or nominee shareholder may appoint one or more persons (whether shareholders of the Company or not) to act as his/her proxy or proxies to exercise all or any of their rights to attend, speak and vote instead of him/her (provided that each such proxy is appointed to exercise the rights attached to a different share or shares held by that shareholder). As shareholders will not be able to attend the AGM this year, to ensure their votes are counted shareholders are strongly encouraged to appoint the Chairman of the AGM as their proxy. Any other person appointed as a proxy may be refused entry to the AGM. The Form of Proxy for use at the AGM must be deposited, together with any power of attorney or authority under which it is signed, at Equiniti, Aspect House, Spencer Road, Lancing, West Sussex BN99 6DA, not less than 48 hours before the time appointed for the AGM or any adjournment thereof. An appropriate Form of Proxy is enclosed. Alternatively, you may register your vote online by visiting www.sharevote.co.uk where you will need to enter the Voting ID, Task ID and Shareholder Reference Number which are on the enclosed Form of Proxy, or if you already have a portfolio registered with Equiniti, by logging onto www.shareview.co.uk. using your usual user ID and password. Once logged in simply click “View” on the “My Investments” page, click on the link to vote then follow the on screen instructions. Proxy votes should be submitted as early as possible and in any event, not less than 48 hours before the time appointed for the AGM or any adjournment thereof. CREST CREST members who wish to appoint a proxy or proxies, or amend an instruction to a previously appointed proxy, through the CREST electronic proxy appointment service may do so for the AGM to be held at 11.00 am on 6 May 2021 and any adjournment(s) thereof, by using the procedures described in the CREST manual (available via www.euroclear.com). 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 & Ireland Limited’s specifications and must contain the information required for such instructions, as described in the CREST manual. The message, regardless of whether it relates to the appointment of a proxy or to an instruction to a previously appointed proxy, must, in order to be valid, be transmitted so as to be received by the issuer’s agent (ID: RA19) by no later than 11.00 am on 4 May 2021 (or no later than two business days before the time appointed for any adjourned meeting). For this purpose, the time of receipt will be taken to be the time (as determined by the timestamp 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 & Ireland Limited 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/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 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 Regulation 35(5)(a) of the Uncertificated Securities Regulations 2001. Change or revoke a proxy instruction Shareholders may change proxy instructions by submitting a new proxy appointment using the methods set out above. 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. 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. Shareholders may revoke a proxy instruction delivered to the Registrar, but to do so must inform the Company in writing by sending a signed hard copy notice clearly stating their intention to revoke the proxy appointment to Equiniti, Aspect House, Spencer Road, Lancing, West Sussex, BN99 6DA. In the case of a shareholder which is a company, the revocation notice must be executed under its common seal or signed on its behalf by an officer of the company or an attorney for the company. Any power of attorney or any other authority under which the revocation notice is signed (or a duly certified copy of such power or authority) must be included with the revocation notice. The revocation notice must be received by the Company no later than the cut-off time (48 hours before the time appointed for the AGM) set out above. If a shareholder attempts to revoke his or her proxy appointment but the revocation is received after the time specified, such shareholder’s original proxy appointment will remain valid unless the shareholder attends the AGM and votes in person.

8 John Laing Group plc Joining instructions The meeting will be held via a telephone conference call facility, giving you the opportunity to listen to the business of the meeting and ask questions at the end. To participate you will need to dial into the conference call line by using the details on page 12. To log in you must have your shareholder reference number. Your shareholder reference number can be found in your Form of Proxy or at the top of the email sent to shareholders registered for email communications. Joint holders In the case of joint holders, where more than one of the joint holders completes a proxy appointment, only the appointment submitted by the most senior holder will be accepted. For this purpose seniority is determined by the order in which the names of the joint holders appear in the Company’s register of members (the first-named being the most senior). Corporate representatives Any corporation which is a shareholder can appoint one or more corporate representatives who may exercise, on its behalf, all of its powers as a shareholder, provided that if two or more representatives purport to vote in respect of the same shares: • if they purport to exercise the power in the same way as each other, the power is treated as exercised in that way; and • in other cases, the power is treated as not exercised. Indirect investors 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. 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. The statement of the rights of shareholders in relation to the appointment of proxies above does not apply to Nominated Persons. The rights described above can only be exercised by shareholders of the Company. Total voting rights As at 19 March 2021 (being the last practicable date prior to the publication of this Notice) the Company’s issued share capital consisted of 493,250,636 Ordinary Shares, carrying one vote each. Therefore, the total voting rights in the Company as at 19 March 2021 were 493,250,636 votes. Information available on the John Laing Group plc corporate website 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 a statement on a website setting out any matter relating to: • the audit of the Company’s accounts (including the external auditor’s report and the conduct of the audit) that are to be laid before the AGM; or • any circumstance connected with an external auditor of the Company ceasing to hold office since the previous meeting at which Annual Reports and Accounts were laid. 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 external auditor 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. Documents available for inspection The following documents will be available for inspection during normal business hours on any business day at the Company’s registered office until the date of the AGM and will also be available during the AGM and for 15 minutes beforehand: • copies of the Directors’ service contracts with, or letters of appointment by, the Company; and • copies of the proposed New Articles and the Existing Articles marked up to show the proposed changes under resolution 20. So that appropriate arrangements can be made for shareholders wishing to inspect documents, we request that shareholders contact the Company Secretarial team by email at [email protected] in advance of any visit to ensure that access can be arranged. Any such access will be subject to health and safety requirements and any limits on gatherings, social distancing or other measures imposed or recommended by the UK Government. A copy of this Notice, and other information required by section 311A of the Act, can be found at www.laing.com. You may not use any electronic address provided either in this Notice or any related documents (including the Form of Proxy) to communicate with the Company for any purposes other than those expressly stated. The results of the voting at the AGM will be announced through a Regulatory Information Service and will appear on the Company’s website as soon as practicable following the AGM.

Notice of Annual General Meeting 2021 9 Biographical details of Directors seeking election

Ben Loomes Chief Executive Officer Relevant skills, experience and contribution Ben has over 20 years of experience in the infrastructure sector across principal investing, fund management, and corporate finance. Ben has extensive financial, strategic and operational experience at senior management and board levels. He has experience in leading international investment and fund management businesses, including across PPP, Renewable Energy projects, Core and Core-plus economic infrastructure businesses. Ben has invested and managed infrastructure portfolios across a range of sectors, including transport, energy, utilities, telecommunications, leasing, healthcare and social infrastructure. Current external appointments • Non-executive director of Ambac Assurance UK Limited. Previous external appointments • Global head of infrastructure and managing partner at InfraRed Capital Partners, managing an infrastructure business with over US$9 billion of assets under management, and responsibility for managing teams in Europe, North America, Latin America and Australia • Managing partner of 3i Group plc’s Infrastructure business. Responsible for leading origination and strategic development. Member of board of plc • Member of 3i Group plc’s Executive Committee and its Investment Committees for Infrastructure, Private Equity and Debt Management • Group strategy director for 3i Group plc • Corporate finance at Goldman Sachs, Greenhill and Morgan Stanley. Rob Memmott Chief Financial Officer Relevant skills, experience and contribution Rob is a qualified chartered accountant, with over 20 years’ experience in senior financial leadership roles and has significant experience as a listed company finance director, having led Arrow Global Group Plc through its successful IPO. He has also been instrumental in strategic restructuring, has led multi-million pound transactions, and managed several finance teams. Current external appointments • Non-executive director of Praetura Group Ltd, and Praetura Debt Services Ltd, a regulated intermediary holding company. Previous external appointments • Chief Financial Officer of Praetura Group Limited between April 2019 and December 2020 • Group Chief Financial Officer of Arrow Global Group Plc between September 2011 and January 2018 • Finance Director and Company Secretary of Leeds Bradford Airport between 2008 and 2011 • Finance Director of Alfred McAlpine Infrastructure Services between 2005 and 2007 • Chief Financial Officer of Servisair-Globeground, between 2002 and 2005. Leanne Bell Independent Non-executive Director Member of: Audit & Risk Committee, Nomination Committee and Remuneration Committee Relevant skills, experience and contribution Leanne is a global infrastructure and power generation expert, with a wide range of investment experience across sectors, stages of development, products, markets and regulatory regimes. She also has a strong background in people development. Current external appointments • Non-executive director of Southwestern Generation Operating Company • Non-executive director of Ventient Energy Services Limited • Non-executive director of Nassau Companies of New York. Previous external appointments • Chief Financial Officer of Synergy Renewables LLC • Managing Director of Tiger Infrastructure Partners (formerly Lehman Brothers Global Infrastructure Partners) • Managing Director of GE Energy Financial Services • Senior management roles with Louis Dreyfus Energy Services, Prudential Power Funding Associates and Salomon Brothers, Inc. Lisa Stone Independent Non-executive Director Member of: Audit & Risk Committee, Nomination Committee and Remuneration Committee Relevant skills, experience and contribution Lisa has extensive investment experience across a range of industries with a strong strategic and people development background. Lisa also has a strong background in social investment. Current external appointments • Non-executive director of The Key • Non-executive director of Ticketer • Non-executive director of SAM Labs • Non-executive director of Smoothwall • Trustee and Chair of the Audit Committee of Impetus and Chair of YEF Investment Committee. Previous external appointments • Founding partner of HgCapital • Director, Strategy and Business Planning at LucasVarity • Senior roles at management consulting firms between 1984 and 1996 • A number of non-executive positions across a range of industries, including SHL, Iris, Disabled People’s Employment Corporation Limited (aka Remploy), Visma AS and Team Systems SA.

10 John Laing Group plc Appendix 1 Summary of the principal proposed changes to the Existing Articles

It is proposed in resolution 20 to adopt the New Articles. In adopting the New Articles, the opportunity has been taken to update the Existing Articles to reflect developments in market practice and legal and regulatory requirements, to provide additional flexibility and to clarify certain aspects of the operation of the Existing Articles where necessary or appropriate. Set out below is a summary of the principal changes proposed to be made in the New Articles as compared to the Existing Articles. The New Articles also include some additional minor, technical, procedural or clarificatory amendments which have not been detailed below. Operation of general meetings To make it easier for Company shareholders (including those based overseas) to take part in future general meetings and to promote member engagement, the New Articles allow for the Company to hold combined physical and electronic general meetings (a hybrid meeting). This is achieved by providing the Company with the flexibility to hold an electronic general meeting in parallel with the physical general meeting, allowing shareholders to attend and participate either in person or virtually by electronic means. Consequential changes to facilitate this amendment have been made throughout the New Articles (including amendments to the interpretation provisions regarding attendance and participation at general meetings). To promote the interests of shareholders, the amendments also provide that: • the chair of the meeting must be satisfied that adequate facilities are available throughout the meeting to ensure that shareholders attending the general meeting by all means (including by means of electronic facilities) are able to participate in the business for which the meeting has been convened; • where a resolution is voted on at a general meeting where shareholders are participating electronically as well as at a physical meeting, such a resolution will be decided on a poll unless the chair determines that it will be decided on a show of hands; and • the Board may make changes to the arrangements for general meetings after notice of the meeting has been issued but before the meeting is held, if the Board decides it is impracticable or unreasonable to hold the meeting at the specified place or time and/or using the electronic facilities stated in the notice. The Board shall take reasonable steps to advertise the date and time of the meeting, and the means of attendance and participation, which may include advertising that information on the Company’s website rather than via an advertisement in two national newspapers. The New Articles also explicitly allow the Company to introduce health and safety arrangements at its meetings. These changes have been proposed to provide greater flexibility to align with technological advances, changes in investor sentiment and evolving best practice, particularly in light of the outbreak of COVID-19. The Board recognises the value and importance of shareholders being able to attend meetings in person and, accordingly, the proposed changes do not permit ‘virtual only’ meetings held exclusively on an electronic basis. Payment of dividends The proposed New Articles update the Existing Articles to provide additional flexibility for the Company to prescribe the manner in which dividends (or other moneys payable in respect of a share) may be paid. The New Articles provide the Board with the flexibility to decide: (i) which method or combination of methods of payment to use; (ii) whether to apply different methods of payment to different shareholders or groups of shareholders; and (iii) where more than one method of payment may be used for any shareholders or a group of shareholders, whether the relevant shareholders may nominate one of these methods of payment. Untraced shareholders The proposed amendments to the Existing Articles update the provisions relating to untraced shareholders, in order to bring these in line with best practice, consistent with similar changes that have been implemented in recent years by other large listed companies. In particular, the proposed changes include replacing the requirement for notices in national and local newspapers with an authorisation for the Company to make such efforts as the Board considers reasonable to trace the member or person entitled, which may include, if considered appropriate, engaging a professional asset reunification company or other tracing agent. No changes are proposed to the period for which dividends must have been unclaimed in order for a shareholder to be treated as an untraced shareholder, which remains 12 years. Under the New Articles, where the shares belonging to an untraced shareholder are sold, if no valid claim for the net proceeds of the sale has been received by the Company within 12 months from the date on which the relevant untraced shares were sold, the net proceeds of sale will then be forfeited to the Company, and the Company can use these funds as the Board thinks fit. Likewise, any unclaimed dividend payable on a share that is sold pursuant to the above procedure, shall be forfeited and shall revert to the Company. Should the Company decide to operate these procedures, it is the Company’s intention to use any funds raised in this way for such charitable purposes as the Directors may decide and consistent with the Group’s corporate social responsibility strategy. Strategic reports and supplementary material The New Articles reflect changes to the Act, which permit the Company to provide a copy of the strategic report together with certain supplementary material rather than the Annual Reports and Accounts, provided the requirements of the Act and related regulations are satisfied. Retirement of Directors The New Articles propose that where a Director has been appointed after notice of an Annual General Meeting has been despatched, that Director shall retire at the next Annual General Meeting of which notice is first given after his or her appointment as Director. Chair’s power of adjournment The New Articles widen the scope of the chair’s adjournment powers, to allow the chair to adjourn the meeting without consent if it appears to him or her that it would facilitate the conduct of the business of the meeting to do so. Share certificates The New Articles confirm that share certificates sent by the Company or its agent are sent at the risk of the shareholder or other person entitled to the certificate. The New Articles confirm that neither the Company nor its agent shall be responsible for any loss or destruction during the course of delivery of the share certificate. Share warrants The New Articles remove the provisions relating to share warrants in light of the Small Business, Enterprise and Employment Act 2015, which prohibits the creation of new bearer shares and requires existing bearer shares to be converted into registered shares. General changes It is also proposed that all gender references be made gender neutral in the New Articles, to demonstrate the Company’s continued support for diversity. These changes appear throughout the New Articles.

Notice of Annual General Meeting 2021 11 AGM conference call details

Joining by telephone Austria 0800 802 898 Belgium 0800 29 923 Belgium (Local) 078 48 16 83 Canada 1 833 2942 546 Canada (Local) 1 613 699 6539 France 0800 94 5619 France (Local) 09 70 73 39 58 Germany (Local) 032 22109 8334 Greece 800 848 1321 Greece (Local) 21 1176 8298 Hong Kong (Local) 5808 4954 India 000 800 0501 315 Ireland (Local) 01 691 7842 Italy 800 684 570 Italy (Local) 06 9450 1060 Japan (Local) 03 4540 6747 Netherlands (Local) 085 888 7233 (Local) 0 22 307 63 50 Romania (Local) 0376 300 018 Russia (Local) 7 495 2839 705 Singapore (Local) 3163 4602 South Africa 080 017 2952 South Africa (Local) 087 550 8441 Spain 900 053 626 Spain (Local) 919 01 16 44 Sweden 0200 123 717 Sweden (Local) 010 884 80 16 Switzerland (Local) 022 518 90 26 Turkey (Local) 0850 390 2046 United Kingdom 0800 640 6441 United Kingdom (Local) 020 3936 2999 United States 1 855 9796 654 United States (Local) 1 646 664 1960 All other locations +44 20 3936 2999

Participant access code 866839 – Participants will be greeted by an operator who will register their details.

12 John Laing Group plc