Announcement PDF 26 November 2025 ASX RELEASE INTERCEPTOR ACQUISITION COMPLETION Electro Optic Systems Holdings Limited (“EOS” or the “Company”) (ASX:EOS) today announces the completion of the transaction to acquire the UK-based interceptor business (the “Interceptor”) from MARSS Group. This transaction was previously announced on 19 November 2025. Under the transaction, EOS has acquired all Interceptor assets as well as the specialist engineering team that developed the system. The total investment of €5.5m (approximately A$10m) has been funded from EOS’ existing cash reserves. Development of this advanced prototype is expected to take a further 12-24 months before full commercial launch. This is expected to require further investment of up to A$10m over the next three years. This acquisition broadens EOS’ counter-drone effector portfolio, extends EOS’ software and AI capabilities and initiates EOS’ presence in the United Kingdom, an important AUKUS partner market. Oaklins Henslow, together with Oaklins France acted as corporate advisors to EOS on this transaction. This announcement has been authorised for release to the ASX by the Board of Directors of the Company. Further information: DR. ANDREAS SCHWER Managing Director and Chief Executive Officer ir@eos-aus.com Page 2 of 2 ABOUT ELECTRO OPTIC SYSTEMS (ASX: EOS) EOS 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), as well as fully integrated and modular counter-UAS and C4 systems. 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