Announcement PDF A: Suite 8, 110 Hay Street, Subiaco WA 6008 P: +61 8 9324 4516 E: info@celsiusresources.com.au W: celsiusresources.com ASX/AIM Announcement 18 May 2026 Change of Company Secretary Celsius Resources Limited (“Celsius” or the ”Company”) (+ASX, AIM: CLA) advises that Mrs. Kellie Davis has resigned as Company Secretary. Mr. Ian Hobson has been appointed as Company Secretary and will be responsible under ASX Listing Rule 12.6 for communication with the ASX, effective 18 May 2026. Ian Hobson is a Chartered Accountant and Chartered Company Secretary with 40 years’ experience in the profession. Ian was a director at PricewaterhouseCoopers for many years with experience working in Australia, UK and Canada. Ian now provides company secretary services and undertakes corporate, management and accounting positions with a number of listed public companies. Bardin Davis, Managing Director of Celsius, commented: “On behalf of the Celsius Board I would like to thank Kellie for her significant contribution to the Company and wish her continued success in her career. I am delighted that Ian has agreed to join Celsius as company secretary. The board will benefit from his expertise, experience and insights.” The Company would also like to advise that the registered office and principal place of business of the Company has been changed to: Suite 8, 110 Hay Street Subiaco WA 6008 This announcement has been authorised by the Board of Directors of Celsius Resources Limited. Celsius Resources Limited Bardin Davis – Managing Director E: info@celsiusresources.com.au W: www.celsiusresources.com NWR Communications Peter Taylor P: +61 412 036 231 E: peter@nwrcommunications.com.au Zeus Capital Limited (Nominated Adviser) James Joyce / James Bavister (Broking) Harry Ansell P: +44 (0) 20 3 829 5000