Announcement PDF 12 June 2026 ASX RELEASE COMPLETION & UPSIZE OF SHARE PURCHASE PLAN Not for release to US wire services or distribution in the United States Electro Optic Systems Holdings Limited (“EOS” or the “Company”) (ASX:EOS), is pleased to confirm the successful completion of its Share Purchase Plan (“SPP”), which was announced on 18 May 2026 and which opened on 25 May 2026. The SPP was undertaken in conjunction with the $150 million institutional placement announced on 18 May 2026 and the further $40 million strategic placement, announced on 20 May 2026. The SPP was overwhelmingly supported, with EOS receiving valid applications of $95 million from 4,909 eligible shareholders, significantly higher than the original $25 million target. In light of the strong demand for the SPP and in recognition of the ongoing support from retail shareholders, the Board has exercised its discretion to accept $40 million in SPP applications. In order to provide the fairest outcome for participating shareholders, EOS has undertaken a scale back of applications in accordance with the following principles: • Applications were scaled back on a pro-rata basis having regard to the relative shareholdings of eligible shareholders as at the SPP record date, being 7:00pm (AEST) on Friday, 15 May 2026 • Where this scale back would have resulted in an eligible shareholder receiving less than the minimum parcel of $1,000 of new fully paid ordinary shares in EOS, those applications were scaled up so that each eligible shareholder who participated in the SPP will receive at least the minimum parcel of $1,000 of New Shares The Board believes the decision to upsize the offer to $40 million balances rewarding our supportive retail shareholders with maintaining disciplined capital efficiency. Under the SPP, approximately 5 million new fully paid ordinary securities in EOS (“New Shares”) will be issued to eligible shareholders at an issue price of $8.00 per New Share (being the same price as the institutional placement and strategic placement). The Company expects that the New Shares issued under the SPP will be issued on Tuesday, 16 June 2026 and holding statements for those New Shares dispatched to shareholders on Wednesday, 17 June 2026. The New Shares are expected to commence trading on the ASX on Wednesday, 17 June 2026. All amounts are in Australian dollars unless otherwise indicated. Page 2 of 3 ME_964174414_1 This announcement has been authorised for release to the ASX by the Board of Directors of the Company. DR. ANDREAS SCHWER Managing Director and Chief Executive Officer ir@eos-aus.com Page 3 of 3 ME_964174414_1 ABOUT ELECTRO OPTIC SYSTEMS (ASX: EOS) EOS currently operates in two divisions DEFENCE SYSTEMS Defence Systems specialises in technology for weapon systems optimisation and integration, as well as ISR (Intelligence, Surveillance and Reconnaissance) and C4 systems for land warfare. Its key products include next-generation remote weapon systems, vehicle turrets, high-energy laser weapons (directed energy), fully integrated and modular counter-UAS and C2 and C4 systems. C2 Systems include Command and Control Systems such as MARSS’ software-led counter-drone and critical infrastructure protection capabilities, centred on the NiDAR platform. SPACE SYSTEMS Space Systems specialises in applying EOS-developed optical sensors and effectors to detect, track and characterise objects in space. It includes capabilities in the domain of space control. FORWARD LOOKING STATEMENTS This announcement may contain certain "forward-looking statements" including statements regarding EOS' intent, belief or current expectations with respect to EOS' business and operations, market conditions, results of operations, financial condition, and risk management practices. The words "likely", "expect", "aim", "should", "could", "may", "anticipate", "predict", "believe", "plan" and other similar expressions are intended to identify forward-looking statements. Indications of, and guidance on, future earnings, financial position and performance, establishment costs and capital requirements are also forward-looking statements. Forward-looking statements including projections, guidance on future earnings and estimates are provided as a general guide only and should not be relied upon as an indication or guarantee of future performance. This announcement may contain such statements that are subject to risk factors associated with an investment in EOS. Forward- looking statements involve known and unknown risks, uncertainties and assumptions and other important factors that could cause the actual results, performances or achievements of EOS to be materially different from future results, performances or achievements expressed or implied by such statements. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this announcement. NOT AN OFFER OF SECURITIES This announcement does not constitute an offer to sell, or the solicitation of an offer to buy, any securities in the United States. The New Shares have not been, and will not be, registered under the U.S. Securities Act of 1933, as amended (the U.S. Securities Act) or under the securities laws of any state or other jurisdiction of the United States. Accordingly, the entitlements may not be taken up by, and the New Shares may not be offered or sold, directly or indirectly, in the United States, except pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the U.S. Securities Act and applicable securities laws of any state or other jurisdiction of the United States.