Announcement PDF 11 November 2026 Change of Auditor Patrys Limited (ASX: PAB) (Patrys, or the Company) wishes to advise that RSM Australia Partners has been appointed as the Company’s auditor, effective immediately. The appointment follows the resignation of BDO Audit Pty Ltd and ASIC’s consent to the resignation in accordance with s329(5) of the Corporations Act 2001 (the “Act”). The decision to change auditors was made following a review by the Board of the Company’s external audit arrangements and the audit fee structure. In accordance with section 327C of the Act, a resolution will be proposed at the Company’s next Annual General Meeting to ratify the appointment of the Company’s auditor. -Ends- This announcement is authorised for release by the Board of Directors of Patrys Limited. For further information, please contact: General enquiries Dr Samantha South Chief Executive Officer P: + 61 421 117 241 Info@patrys.com Registered Office Address 168 Stirling Highway Nedlands WA, 6009 About Patrys Limited Patrys (ASX:PAB) is focused on the development of its deoxymab platform of cell-penetrating antibodies as therapies for a range of different indications. More information can be found at www.patrys.com.