Quarterly Activities/Appendix 5B Cash Flow Report

• Extensive RC drill program defined widespread, continuous, primary orogenic gold mineralisation at Lighthorse
• Diamond drilling program completed at the Kirgella Gift and Providence deposits, with assays pending
• Commenced updated JORC Code (2012) Inferred Mineral Resource Estimate at La Mascotte

Kalgoorlie Gold Mining Ltd (ASX: KAL) reported on its activities during the fourth quarter of 2025, with the key highlights being the successful RC drill program at the Lighthorse gold prospect within the Pinjin Gold Project, the completed diamond drilling program at the Kirgella Gift and Providence deposits, and the commencement of an updated JORC Code (2012) Inferred Mineral Resource Estimate at the La Mascotte deposit within the Bulong Taurus Gold Project. The RC drill program at Lighthorse defined extensive, continuous, primary orogenic gold mineralisation over a strike length of more than 1,100 meters, with the mineralisation remaining open to the north. The results validate KalGold's systematic exploration methodology and define a primary, orogenic gold mineralising system of substantial scale at Lighthorse. The Company is now focused on defining higher-grade and economically extractable parts of the Lighthorse gold system, which will be the target of upcoming drill programs. The diamond drilling program at the Kirgella Gift and Providence deposits has been completed, with the processing of drill core and assay results pending. At the Bulong Taurus Gold Project, the Company has commenced an updated JORC Code (2012) Inferred Mineral Resource Estimate at the La Mascotte deposit to capitalize on the substantially increased gold price since the previous modelling in early 2023. The Company's balance sheet remains strong, with $4 million in cash and no debt as of 31 December 2025.

The Company is accelerating its exploration efforts at the Pinjin Gold Project, with upcoming RC drill programs designed to accurately define the distribution, geometry, and continuity of primary gold mineralisation across the Lighthorse prospect, as well as extend the drilling to the north and south to define the full extent of the primary orogenic gold mineralisation. The RC drilling will be augmented by new aircore drill programs targeting multiple targets within a broad area east of Kirgella Gift and Lighthorse, as well as other target testing throughout the greater Pinjin Gold Project.