Announcement PDF ASX ANNOUNCEMENT 25 September 2026 ASX:VKA vikingmines.com 15-17 Old Aberdeen Place West Perth, WA, 6005 P +61 8 6245 0870 contact@vikingmines.com 1 NOTIFICATION OF CHANGE OF EXTERNAL AUDITOR Viking Mines Limited (ASX: VKA) (“Viking” or “the Company”) advises, in accordance with ASX Listing Rule 3.16.3 that a change of external auditor from Horizon Nexus (WA) Audit Pty Ltd formerly, Nexia Perth Audit Services Pty Ltd, (Horizon Nexus Partners) to Hall Chadwick WA Audit Pty Ltd (Hall Chadwick) is proposed to take effect from the close of the 2026 Annual General Meeting (AGM), following the resignation of Horizon Nexus Partners. This appointment is subject to shareholder approval at the AGM and the consent of ASIC to the resignation of Horizon Nexus Partners. The Company thanks Horizon Nexus Partners for their services throughout their tenure as the Company’s external auditor. END This announcement has been authorised for release by the Board of the Company. Julian Woodcock Managing Director and CEO Viking Mines Limited For further information, please contact: Michaela Stanton-Cook - Company Secretary Viking Mines Limited +61 8 6245 0870 Learn more about Viking Mines via our investor hub here