Announcement PDF Appendix 3Y Change of Director’s Interest Notice + See chapter 19 for defined terms. 01/01/2011 Appendix 3Y Page 1 Rule 3.19A.2 Appendix 3Y Change of Director’s Interest Notice Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public. Introduced 30/09/01 Amended 01/01/11 Name of entity: Senetas Corporation Ltd ABN: 33 006 067 607 We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act. Name of Director Francis William Galbally Date of last notice 17 March 2025 Part 1 - Change of director’s relevant interests in securities In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part. Direct or indirect interest Indirect Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest. Corporate Services Management Pty Ltd <F W Galbally A/C> (Francis William Galbally has a controlling interest in the above entity in its capacity as trustee of the F W Galbally Trust.) F & C Corporation Pty Limited <F W Galbally Super Fund A/C> (Francis William Galbally has a beneficial interest in the above fund.) Appendix 3Y Change of Director’s Interest Notice + See chapter 19 for defined terms. Appendix 3Y Page 2 01/01/2011 Date of change 31 August – 3 September 2026 Class Fully paid ordinary shares (quoted) (ASX:SEN)) (Shares) No. of securities held prior to change * Indirect Holdings Corporate Services Management Pty Ltd <F W Galbally A/C> F & C Corporation Pty Limited <F W Galbally Super Fund A/C> * reflects 100:1 Share consolidation approved by shareholders on 14 November 2025. ** reflects merging by share registrar of two holding accounts of this entity. 1,981,634 Shares ** 192,461 Shares Number acquired 12,539 Shares Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation $2.43 - $2.50 per Share Total consideration: $31,013.46 No. of securities held after change Indirect Holdings Corporate Services Management Pty Ltd <F W Galbally A/C> F & C Corporation Pty Limited <F W Galbally Super Fund A/C> 1,981,634 Shares 205,000 Shares Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back 12,539 Shares purchased on market Appendix 3Y Change of Director’s Interest Notice + See chapter 19 for defined terms. 01/01/2011 Appendix 3Y Page 3 Part 2 – Change of director’s interests in contracts Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part. Detail of contract N/A Nature of interest N/A Name of registered holder (if issued securities) N/A Date of change N/A No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed N/A Interest acquired N/A Interest disposed N/A Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation N/A Interest after change N/A Part 3 – +Closed period Were the interests in the securities or contracts detailed above traded during a +closed period where prior written clearance was required? N/A If so, was prior written clearance provided to allow the trade to proceed during this period? N/A If prior written clearance was provided, on what date was this provided? N/A