Announcement PDF Atturra Limited ABN 34 654 662 638 Level 2, 10 Bond Street Sydney NSW 2000 ASX Announcement 21 September 2026 2026 Annual General Meeting Sydney, Australia, 21 September 2026 – Atturra Limited (ASX: ATA) (Atturra or the Company), attaches the following documents in relation to its 2026 Annual General Meeting (AGM): • AGM Notice of Meeting, including the Online Meeting Guide; • Letter of Access; and • Proxy Form. - ENDS - This announcement has been authorised for release by the CEO of Atturra Limited. About Atturra: Atturra is Australia's leading ASX-listed, AI-driven technology integrator, providing its clients with leading-edge solutions to support mastery of complex business challenges and accelerate growth and profitability. Atturra’s ability to guide clients through their AI-powered transformation is founded on its deep experience in technology solutions, industry expertise, proprietary implementation IP and end-to-end delivery capability, including its partnerships with leading global providers including Boomi, Cisco, Databricks, HP, HPE, Infor, Microsoft, OpenText, QAD, SAP,Smartsheet and others.Atturra’s clientbasespans defence,education,government (local, state and federal), financial services, manufacturing, resources and utilities industries. Atturra Investor Hub We encourage you to go to our Investor Hub for any enquiries regarding this announcement or other investor news from Atturra. This platform offers an opportunity to submit questions and stay up to date on shareholder news, reports, presentations and more. To access the Atturra Investor Hub please scan the QR code or visit https://investors.atturra.com/ For further information, please contact: Investors Media James Lennon Dylan Marks P: 02 8072 1400 E: investorrelations@atturra.com P:02 8260 7918 E: media@atturra.com Atturra Limited | Annual General Meeting – Notice of Meeting and Explanatory Statement Atturra Limited Level 2, 10 Bond Street Sydney NSW 2000 ACN: 654 662 638 Atturra Limited Thursday, 22 October 2026 3:00 PM AEDT Held as a Virtual Meeting info@atturra.com www.atturra.com This Notice of Meeting should be read in its entirety. If Shareholders are in doubt as to how they should vote, they should seek advice from their professional advisers prior to voting. Notice of 2026 Annual General Meeting Explanatory Statement | Proxy Form 2 Atturra Limited | Annual General Meeting – Notice of Meeting and Explanatory Statement Important Information for Shareholders about the Company’s 2026 AGM This Notice is given based on circumstances as at 21 September 2026. Should circumstances change, the Company will make an announcement on the ASX market announcements platform and on the Company’s website at https://investors.atturra.com/meetings/. Shareholders are urged to monitor the ASX announcements platform and the Company’s website. Venue and Voting Information The Annual General Meeting of Shareholders to which this Notice of Meeting relates will be held at 3:00PM AEDT on Thursday, 22 October 2026 as a virtual meeting. To be able to hold this Meeting using virtual meeting technology only, as permitted by the Company’s Constitution, the Company is relying upon s249R(c) of the Corporations Act. How Do I Participate in the Meetings Online? Securityholders must use the Computershare Meeting Platform to attend and participate in the meeting. To participate in the meeting, you can log in by entering the following URL https://meetnow.global/MYNTRXL on your computer, tablet or smartphone. Online registration will open 30 minutes before the meeting. To make the registration process quicker, please have your SRN/HIN and registered postcode or country code ready. Proxyholders will need to contact Computershare prior to the meeting to obtain their login details. To participate in the meeting online follow the instructions below. 1. Click on ‘Join Meeting Now’. 2. Enter your SRN/HIN. Proxyholders will need to contact Computershare on +61 3 9415 4024 prior to the meetings to obtain their login details. 3. Enter your postcode registered to your holding if you are an Australian securityholder. If you are an overseas securityholder select the country of your registered holding from the drop- down list. 4. Accept the Terms and Conditions and ‘Click Continue’. You can view the meeting live, ask questions verbally or via a live text facility and cast votes at the appropriate times while the meeting is in progress. The business of the Annual General Meeting affects your shareholding, and your vote is important. More information regarding participating in the AGM online can be found attached to this Notice of Meeting. 3 Atturra Limited | Annual General Meeting – Notice of Meeting and Explanatory Statement Voting by Proxy Online Lodge the Proxy Form online at www.investorvote.com.au by following the instructions provided on the website. You will need your HIN or SRN and postcode/country code to lodge your Proxy Form online. By post Computershare Investor Services Pty Limited GPO Box 242 Melbourne VIC 3001 Australia By hand 452 Johnston Street, Abbotsford VIC 3067 Your Proxy instruction must be received not later than 48 hours before the commencement of the Meeting. Proxy Forms received later than this time will be invalid. Power of Attorney If the Proxy Form is signed under a Power of Attorney on behalf of a Shareholder, then the attorney must make sure that either the original Power of Attorney or a certified copy is sent with the Proxy Form, unless the Power of Attorney has already provided it to the Share Registry. Corporate Representatives If a representative of a corporate shareholder or a corporate proxy will be attending the Meeting, the representative should provide the Share Registry with adequate evidence of their appointment, unless this has previously been provided to the Share Registry. Other Information Poll voting The Chair will call a poll for all resolutions set out in this Notice. Please refer to the explanatory notes for further information on the proposed resolutions and applicable voting exclusions. Electronic copies The Company believes that the best way for shareholders to receive meeting documentation, annual reports and other information on Company matters is electronically. To review or update your current communication preference, simply log on to our share registry’s website at www.investorvote.com.au and select the “Communications” tab. You will need your portfolio login details or your SRN or HIN. Locating your SRN or HIN Your SRN or HIN can be found on your Voting Form. If you require further assistance with locating your SRN or HIN, you are encouraged to contact Computershare Investor Services or your broker as soon as possible, and well in advance of the AGM. 4 Atturra Limited | Annual General Meeting – Notice of Meeting and Explanatory Statement Update your details To update information about your shareholding go to www.investorcentre.com. When accessing information online or calling Computershare, please have your SRN or HIN, as shown on your Issuer Sponsored/CHESS statements, at hand. Technical Difficulties Technical difficulties may arise during the course of the AGM. The Chair of the Meeting has discretion as to whether and how the meeting should proceed if a technical difficulty arises. In exercising this discretion, the Chair will have regard to the number of Shareholders impacted and the extent to which participation in the business of the meeting is affected. Where the Chair considers it appropriate, the Chair may continue to hold the meeting and transact business at the physical venue, including conducting a poll and voting in accordance with valid proxy instructions. Please note that the inability of one or more shareholders, proxies or corporate representatives to access the physical meeting as a result of travel disruption, including strike action, or for any other reason, will not affect the validity of the meeting. Notice of Annual General Meeting Notice is hereby given that an Annual General Meeting of Shareholders of Atturra Limited ACN 654 662 638 will be held at 3:00PM AEDT on Thursday, 22 October 2026 as a virtual meeting (Meeting). The Explanatory Statement to this Notice of Meeting provides additional information on matters to be considered at the Annual General Meeting. The Explanatory Statement and the Proxy Form form part of this Notice of Meeting. The Directors have determined pursuant to Regulation 7.11.37 of the Corporations Regulations 2001 (Cth) that the persons eligible to vote at the Annual General Meeting are those who are registered Shareholders at 7:00PM AEDT on Tuesday, 20 October 2026. Terms and abbreviations used in this Notice of Meeting and Explanatory Statement are defined in the Glossary. Agenda Ordinary business Financial statements and reports “To receive and to consider the Annual Financial Report of the Company for the financial year ended 30 June 2026 together with the declaration of the Directors, the Directors’ Report, the Remuneration Report and the Auditor’s Report for that financial year.” Note: This item of ordinary business is for discussion only and is not a resolution. Pursuant to the Corporations Act, Shareholders will be given a reasonable opportunity at the Meeting to ask questions about, or make comments in relation to, each of the aforementioned reports during consideration of these items. 5 Atturra Limited | Annual General Meeting – Notice of Meeting and Explanatory Statement Resolutions Remuneration Report 1. Resolution 1 – Adoption of Remuneration Report To consider and, if thought fit, to pass the following resolution as an Ordinary Resolution: “That, for the purpose of Section 250R(2) of the Corporations Act and for all other purposes, approval is given for the adoption of the Remuneration Report as contained in the Company’s Annual Financial Report for the financial year ended 30 June 2026.” Note: The vote on this Resolution is advisory only and does not bind the Directors or the Company. Voting Exclusion Statement: In accordance with the Corporations Act, the Company will disregard any votes cast on Resolution 1 by or on behalf of a member of the Company’s key management personnel (including the Directors), whose remuneration details are included in the Remuneration Report (KMP), or any of that person’s Closely Related Parties (such as close family members and any controlled companies of those persons) (collectively referred to as Restricted Voter). However, the Company need not disregard a vote if: (a) it is cast by a person as a proxy appointed in writing that specifies how the proxy is to vote on Resolution 1; and (b) it is not cast on behalf of a Restricted Voter. If you appoint the person chairing the Meeting (Chair) and you are not a Restricted Voter, by submitting the Proxy Form you authorise the person chairing the Meeting to exercise the proxy even though Resolution 1 is connected directly or indirectly with the remuneration of a KMP, and you will be taken to have directed the Chair to vote in accordance with his or her stated intention to vote in favour of Resolution 1. If you do not want your vote exercised in favour of Resolution 1, you should direct the person chairing the Meeting to vote “against”, or to abstain from voting on, this Resolution. Re-election of Directors 2. Resolution 2 – Re-election of Shan Kanji as Director To consider and, if thought fit, to pass the following resolution as an Ordinary Resolution: “That Shan Kanji, a Director who retires by rotation in accordance with the Company’s Constitution and ASX Listing Rule 14.5, and being eligible offers himself for re-election as a Director of the Company, effective immediately.” 3. Resolution 3 – Re-election of Nicole Bowman as Director To consider and, if thought fit, to pass the following resolution as an Ordinary Resolution: “That Nicole Bowman, a Director who retires by rotation in accordance with the Company’s Constitution and ASX Listing Rule 14.5, and being eligible offers herself for re-election as a Director of the Company, effective immediately.” 6 Atturra Limited | Annual General Meeting – Notice of Meeting and Explanatory Statement ASX Listing Rule 7.1A (Additional 10% Capacity) 4. Resolution 4 – ASX ListingRule 7.1A Approval of Future Issue of Securities To consider and, if thought fit, to pass the following resolution as a Special Resolution: “That, for the purposes of ASX Listing Rule 7.1A and for all other purposes, the Shareholders approve the issue of equity securities up to 10% of the issued capital of the Company (at the time of issue) calculated in accordance with the formula prescribed in ASX Listing Rule 7.1A.2 and otherwise on the terms and conditions set out in the Explanatory Statement which accompanies and forms part of this Notice of Meeting.” Voting Exclusion Statement: The Company will disregard any votes cast in favour of Resolution 4 by or on behalf of: a) a person who is expected to participate in, or who will obtain a material benefit as a result of, the proposed issue (except a benefit solely by reason of being a holder of ordinary securities in the Company); or b) an Associate of that person or those persons. However, this does not apply to a vote cast in favour of Resolution 4 by: (i) a person as proxy or attorney for a person who is entitled to vote on the Resolution, in accordance with directions given to the proxy or attorney to vote on the Resolution in that way; or (ii) the Chair of the Meeting as proxy or attorney for a person who is entitled to vote on the Resolution, in accordance with a direction given to the Chair to vote on the Resolution as the Chair decides; or (iii) a holder acting solely in a nominee, trustee, custodial or other fiduciary capacity on behalf of a beneficiary provided the following conditions are met: • the beneficiary provides written confirmation to the holder that the beneficiary is not excluded from voting, and is not an associate of a person excluded from voting, on the Resolution; and • the holder votes on the Resolution in accordance with directions given by the beneficiary to the holder to vote in that way. Issue of Securities under the Company’s Long Term Incentive Plan 5. Resolution 5 – Approval of Issue of Securities under the Company’s Long-Term Incentive Plan To consider and, if thought fit, to pass the following resolution as an Ordinary Resolution: “That, for the purposes of Listing Rule 7.2 Exception 13(b) and for all other purposes, Shareholders approve the issue of securities under the Company’s Long-Term Incentive Plan on the terms and conditions set out in the Explanatory Statement which accompanies and forms part of this Notice of Meeting.” 7 Atturra Limited | Annual General Meeting – Notice of Meeting and Explanatory Statement Voting Exclusion Statement: The Company will disregard any votes cast in favour of Resolution 5 by or on behalf of: a. a person who is eligible to participate in the Company’s Long-Term Incentive Plan; or b. an Associate of that person or those persons. However, this does not apply to a vote cast in favour of Resolution 5 by: i. a person as proxy or attorney for a person who is entitled to vote on the Resolution, in accordance with directions given to the proxy or attorney to vote on the Resolution in that way; or ii. the Chair of the Meeting as proxy or attorney for a person who is entitled to vote on the Resolution, in accordance with a direction given to the Chair to vote on the Resolution as the Chair decides; or iii. a holder acting solely in a nominee, trustee, custodial or other fiduciary capacity on behalf of a beneficiary provided the following conditions are met: • the beneficiary provides written confirmation to the holder that the beneficiary is not excluded from voting, and is not an associate of a person excluded from voting, on the Resolution; and • the holder votes on the Resolution in accordance with directions given by the beneficiary to the holder to vote in that way. Voting Prohibition Statement: In accordance with section 250BD of the Corporations Act, a person appointed as a proxy must not vote, on the basis of that appointment, on Resolution 5 if: (a) the proxy is either: i. a member of the Company’s Key Management Personnel; or ii. a closely related party of a member of the Company’s Key Management Personnel; and (b) the appointment does not specify the way the proxy is to vote on the resolution. However, the above prohibition does not apply if: (a) the proxy is the Chair of the Meeting; and (b) the appointment expressly authorises the Chair to exercise the proxy even if the Resolution is connected directly or indirectly with remuneration of a member of the Company’s Key Management Personnel. Issue of Incentive Securities to Director 6. Resolution 6(a)– Approval for the Issue of Performance Rights to Stephen Kowal, Director To consider and, if thought fit, to pass the following resolution as an Ordinary Resolution: "That, for the purposes of ASX Listing Rule 10.14 and for all other purposes, Shareholders approve the issue of 459,885 Performance Rights (and the issue of Shares upon the vesting of those Performance Rights) under the Company's Long Term Incentive Plan to Stephen Kowal, Director 8 Atturra Limited | Annual General Meeting – Notice of Meeting and Explanatory Statement and CEO of the Company, and otherwise on the terms and conditions set out in the Explanatory Statement which accompanies and forms part of this Notice of Meeting." Voting Exclusion Statement: The Company will disregard any votes cast in favour of Resolution 6(a) by or on behalf of: (a) a person referred to in rule 10.14.1, 10.14.2 or 10.14.3 who is eligible to participate in the Company’s Long-Term Incentive Plan; or (b) an Associate of that person or those persons. However, this does not apply to a vote cast in favour of Resolution 6(a) by: (i) a person as proxy or attorney for a person who is entitled to vote on the Resolution, in accordance with directions given to the proxy or attorney to vote on the Resolution in that way; or (ii) the Chair of the Meeting as proxy or attorney for a person who is entitled to vote on the Resolution, in accordance with a direction given to the Chair to vote on the Resolution as the Chair decides; or (iii) a holder acting solely in a nominee, trustee, custodial or other fiduciary capacity on behalf of a beneficiary provided the following conditions are met: • the beneficiary provides written confirmation to the holder that the beneficiary is not excluded from voting, and is not an associate of a person excluded from voting, on the Resolution; and • the holder votes on the Resolution in accordance with directions given by the beneficiary to the holder to vote in that way. Voting Prohibition Statement: In accordance with section 250BD of the Corporations Act, a person appointed as a proxy must not vote, on the basis of that appointment, on Resolution 6(a) if: (a) the proxy is either: (i) a member of the Company’s Key Management Personnel; or (ii) a closely related party of a member of the Company’s Key Management Personnel; and (b) the appointment does not specify the way the proxy is to vote on the resolution. However, the above prohibition does not apply if: (a) the proxy is the Chair of the Meeting; and (b) the appointment expressly authorises the Chair to exercise the proxy even if the Resolution is connected directly or indirectly with remuneration of a member of the Company’s Key Management Personnel. Resolution 6(b) - Approval for the Issue of Options to Stephen Kowal, Director To consider and, if thought fit, to pass the following resolution as an Ordinary Resolution: "That, for the purposes of ASX Listing Rule 10.14 and for all other purposes, Shareholders approve the issueof 7,480,000 Options (and the issue of Shares upon the vesting and exercise of those Options) under the Company's Long Term Incentive Plan to Stephen Kowal, Director and CEO of the Company, and otherwise on the terms and conditions set out in the Explanatory Statement which accompanies and forms part of this Notice of Meeting." 9 Atturra Limited | Annual General Meeting – Notice of Meeting and Explanatory Statement Voting Exclusion Statement: The Company will disregard any votes cast in favour of Resolution 6(b) by or on behalf of: (a) a person referred to in rule 10.14.1, 10.14.2 or 10.14.3 who is eligible to participate in the Company’s Long-Term Incentive Plan; or (b) an Associate of that person or those persons. However, this does not apply to a vote cast in favour of Resolution 6(b) by: (i) a person as proxy or attorney for a person who is entitled to vote on the Resolution, in accordance with directions given to the proxy or attorney to vote on the Resolution in that way; or (ii) the Chair of the Meeting as proxy or attorney for a person who is entitled to vote on the Resolution, in accordance with a direction given to the Chair to vote on the Resolution as the Chair decides; or (iii) a holder acting solely in a nominee, trustee, custodial or other fiduciary capacity on behalf of a beneficiary provided the following conditions are met: • the beneficiary provides written confirmation to the holder that the beneficiary is not excluded from voting, and is not an associate of a person excluded from voting, on the Resolution; and • the holder votes on the Resolution in accordance with directions given by the beneficiary to the holder to vote in that way. Voting Prohibition Statement: In accordance with section 250BD of the Corporations Act, a person appointed as a proxy must not vote, on the basis of that appointment, on Resolution 6(b) if: (a) the proxy is either: (i) a member of the Company’s Key Management Personnel; or (ii) a closely related party of a member of the Company’s Key Management Personnel; and (b) the appointment does not specify the way the proxy is to vote on the resolution. However, the above prohibition does not apply if: (a) the proxy is the Chair of the Meeting; and (b) the appointment expressly authorises the Chair to exercise the proxy even if the Resolution is connected directly or indirectly with remuneration of a member of the Company’s Key Management Personnel. BY ORDER OF THE BOARD Nina Mlinarevic Company Secretary 10 Atturra Limited | Annual General Meeting – Notice of Meeting and Explanatory Statement Explanatory Statement This Explanatory Statement has been prepared for the information of the Shareholders in connection with the business to be conducted at the Annual General Meeting to be held at 03:00PM AEDT on Thursday, 22 October 2026 as a virtual meeting. The purpose of this Explanatory Statement is to provide information which the Directors believe to be material to Shareholders in deciding whether or not to pass the Resolutions in the Notice of Meeting. If you are in any doubt about what to do in relation to the Resolutions contemplated in the Notice of Meeting and this Explanatory Statement, it is recommended that you seek advice from an accountant, solicitor or other professional advisor. Full details of the business to be considered at the Annual General Meeting are set out below. Agenda Ordinary business Financial statements and reports In accordance with the Constitution and the Corporations Act, the business of the Annual General Meeting will include receipt and consideration of the Annual Financial Report of the Company for the financial year ended 30 June 2026 together with the declaration of the Directors, the Director’s Report, the Remuneration Report and the Auditor’s Report. In accordance with the amendments to the Corporations Act, the Company is no longer required to provide a hard copy of the Company’s Annual Financial Report to Shareholders unless a Shareholder has specifically elected to receive a printed copy. Whilst the Company will not provide a hard copy of the Company’s Annual Financial Report unless specifically requested to do so, Shareholders may view the Company Annual Financial Report on its website at www.atturra.com. No resolution is required for this item, but Shareholders will be given the opportunity to ask questions and to make comments on the management and performance of the Company. The Company’s auditor will be present at the Meeting. During the discussion of this item, the auditor will be available to answer questions on the:  Conduct of the audit;  Preparation and content of the Auditor’s Report;  Accounting policies adopted by the Company in relation to the preparation of the financial statements; and  Independence of the auditor in relation to the conduct of the audit. Written questions of the auditor If you would like to submit a written question about the content of the Auditor’s Report or the conduct of the audit of the Annual Financial Report of the Company’s auditor, please send your question to the Company Secretary. A list of qualifying questions will be made available at the Meeting. Please note that all written questions must be received at least five business days before the Meeting, which is by Thursday, 15 October 2026. 11 Atturra Limited | Annual General Meeting – Notice of Meeting and Explanatory Statement Resolutions Remuneration Report Resolution 1 – Adoption of Remuneration Report Background In accordance with section 250R(2) of the Corporations Act, the Company is required to present to its Shareholders the Remuneration Report as disclosed in the Company’s Annual Financial Report. The vote on the Resolution is advisory only and does not bind the Directors or the Company. The Remuneration Report is set out in the Company’s Annual Financial Report and is also available on the Company’s website at www.atturra.com. However, if at least 25% of the votes cast are against the adoption of the Remuneration Report at the Meeting (subject of this Notice of Meeting), and then again at the 2027 Annual General Meeting (2027 AGM), the Company will be required to put to the vote a resolution (Spill Resolution) at the 2027 AGM to approve the calling of a further meeting (Spill Meeting). If more than 50% of Shareholders vote in favour of the Spill Resolution, the Company must convene the Spill Meeting within 90 days of the 2027 AGM. All of the Directors who were in office when the 2027 Directors’ Report was approved, other than the Managing Director, will (if desired) need to stand for re- election at the Spill Meeting. The Remuneration Report explains the Board’s policies in relation to the nature and level of remuneration paid to KMPs (including Directors) and sets out remuneration details, service agreements and the details of any share-based compensation. Voting Note that a voting exclusion applies to Resolution 1 in the terms set out in the Notice of Meeting. In particular, the Directors and other Restricted Voters must not vote on this Resolution and must not cast a vote as proxy, unless the appointment gives a direction on how to vote, or the proxy is given to the Chair and you submit the Proxy Form, authorising the Chair to exercise the proxy even though Resolution 1 is connected directly or indirectly with the remuneration of a KMP and that in doing so you will be taken to have directed the Chair to vote in accordance with the Chair’s stated intention to vote in favour of Resolution 1. Shareholders are urged to read carefully the Proxy Form and to provide a direction to the proxy on how to vote on this Resolution. Directors’ Recommendation The Directors have not made a recommendation for this Resolution. The Chair of the Meeting intends to cast all undirected proxies in favour of this Resolution. Re-election of Director Resolution 2 – Re-election of Shan Kanji as Director Background The Company’s Constitution requires that at every general meeting, an election of Directors must be held. All eligible Directors can seek re-election by the Shareholders. Further, ASX Listing Rule 14.5 provides that an entity which has Directors must hold an election of Directors at each annual general meeting. Shan Kanji is the Non- Executive Chairman of the Company and was appointed on 20 October 12 Atturra Limited | Annual General Meeting – Notice of Meeting and Explanatory Statement 2021 and was last re-elected by Shareholders at the Company’s 2023 AGM. Under this Resolution, Shan Kanji has elected to retire by rotation, and being eligible, seeks re- election as a Director of the Company at this AGM. Shan Kanji has spent more than 20 years as a senior business leader with a proven track record of running scale diversified and complex industrial and technology businesses in Australia and New Zealand. He has extensive experience with start-ups in technology, property development, manufacturing, and other sectors. Shan is a lawyer and the Principal of Kanji & Co. Shan Kanji holds a Bachelor of Laws and a Bachelor of Commerce from the University of NSW. Directors’ Recommendation The Directors (excluding Shan Kanji) recommend that Shareholders vote for this Resolution. The Chair of the Meeting intends to cast all undirected proxies in favour of this Resolution. Resolution 3 – Re-election of Nicole Bowman as Director Background The Company’s Constitution requires that at every general meeting, an election of Directors must be held. All eligible Directors can seek re-election by the Shareholders. Further, ASX Listing Rule 14.5 provides that an entity which has Directors must hold an election of Directors at each annual general meeting. Nicole Bowman was appointed as a Non-Executive Director of the Company on 20 October 2021 and was last re-elected by Shareholders at the Company’s 2023 AGM. Under this Resolution, Nicole Bowman has elected to retire by rotation, and being eligible, seeks re-election as a Director of the Company at this AGM. Nicole Bowman is an experienced leader, non-executive director and lawyer whose leadership career has spanned over two decades across industries as diverse as mining, fi