Quarterly Activities/Appendix 5B Cash Flow Report

The March 2026 Quarter marked Ardiden Limited’s (“Ardiden” or “the Company”) transition to active drilling at the Rouyn Gold Project in Québec, Canada, with drilling underway and first assay results delivered.

HIGHLIGHTS

·        Maiden drilling program commenced at the Rouyn Gold Project (Québec), with initial assay results delivered

·        High-grade gold intersected at Astoria, including:

o   7.0m @ 16.1 g/t Au (including 1.0m @ 78.7 g/t Au & 1.0m @27 g/t Au), (ASX: 27 March 2026) and further results pending

o   ~7,500 metres drilled to date as part of a ~15,000 metre diamond drilling program targeting resource growth, continuity and depth extensions

·        Environmental baseline and preliminary economic workstreams commenced in parallel with drilling

·        Permitting and stakeholder engagement progressed, including community consultation

·        Acquisition of the historic high-grade Golden Patricia Gold Mine (Ontario) from Barrick announced subsequent to Quarter end

Second diamond drill rig mobilised to accelerate testing across the Rouyn corridor subsequent to Quarter end