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ASX : SNM ASX ANNOUNCEMENT 30 July 2026 SENTINEL METALS JUNE 2026 QUARTERLY ACTIVITIES REPORT Transformational quarter sees maiden drilling commence at the Columbia Gold - Silver Project , Montana and acquisition of the 1.0Moz Big Springs Gold Project , Nevada QUARTERLY HIGHLIGHTS Maiden diamond drilling program commenced at the Columbia Gold - Silver Project on 6 June following receipt of final approval from the Montana Department of Environmental Quality ( DEQ ) . The ~ 5,000m , 21 - hole HQ diamond drilling program is designed to test priority zones defined by recent geological reinterpretation , geophysical insights and assay validation . The first drill - hole intersected broad mineralisation from the top of the hole to 218m depth , characterised by veining and significant alteration , with deeper brecciation intersected at 288m to end - of - hole . Initial geological observations provide encouraging validation of the Company's targeting model and support HSAMT as an effective geophysical tool for identifying mineralised structures beneath the historically drilled oxide horizon . First assay results expected in early August , with drilling continuing . Corporate • • • Binding agreement announced on 2 July for Sentinel to acquire the Big Springs Gold Project in Nevada , USA from Capricorn Metals Limited ( ASX : CMM ) . Big Springs hosts an existing Mineral Resource Estimate ( MRE ) of 15.5Mt @ 2.0g / t Au for 1.01 Moz of contained gold with significant exploration upside . Big Springs is currently permitted for open cut and underground mining . Acquisition establishes Sentinel as an emerging ~ 2Moz North American gold company with advanced projects in two premier US mining jurisdictions . Firm commitments received subsequent to Quarter - end to raise $ 15m via an institutional share placement at $ 0.58 per share from Australian and international institutional and sophisticated investors , with Capricorn subscribing for $ 3m worth of shares . Capital raising satisfies a key condition precedent for Sentinel's proposed acquisition of the Big Springs Project . Proceeds will be used to fund the cash component of the Big Springs acquisition , as well as for exploration programs at both Big Springs and at the Columbia Gold - Silver Project , and for working capital . Managing Director , Mr Matt Herbert , commented : " The June Quarter marked a defining period for Sentinel , with the commencement of our maiden drilling program at the Columbia Gold - Silver Project in Montana and the recent Sentinel Metals Limited | ACN 681 796 270 sentinelmetals.com ASX : SNM info@sentinelmetals.com