Announcement PDF Appointment on non-executive director Canberra, 22 May 2023 Electro Optic Systems Holdings Limited (EOS or Company) (ASX: EOS) today announces that Mr Robert Nicholson will join the Board as a Non-Executive Director effective 24 May 2023. Robert was a Partner at Herbert Smith Freehills (and predecessor firms) for 28 years. He served on the Freehills Board of Partners for 10 years and was Chairman for 3 years in the lead-up to the Firm’s merger with Herbert Smith to create a global Firm with 500 Partners and 28 offices. Robert is currently a Director of Port of Melbourne, Alinta Energy Pty Ltd, Landcare Australia Ltd, European Australian Business Council and the Baker Heart and Diabetes Institute. He was previously a director of Nucleus Network. EOS Chairman, Garry Hounsell, said: “I am delighted to welcome Robert to the Board of EOS. His background and experience in Law, mergers & acquisitions and leadership will be complimentary to the skills already represented on our Board.” Robert Nicholson said “I am delighted to be joining the Board of EOS and am excited about the potential for the company to commercialise its technologies profitably, build on its collaborations and reach new markets.” Authorised for release by the Board. Further information: Marguerite Wilson enquiry@eos-aus.com ABOUT ELECTRO OPTIC SYSTEMS (ASX: EOS) EOS operates in two divisions: Defence Systems and Space 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 are next-generation remote weapon systems, vehicle turrets, counter-UAS and C4 systems. • Space Systems includes all EOS space and communications businesses, and operates as two entities – Space Technologies and EM Solutions. Space Technologies specialises in applying EOSdeveloped optical sensors to detect, track, classify and characterise objects in space and remains integral to research and development across the group. EM Solutions provides global satellite communications services and systems.