Announcement • Jul 17
Sentinel Exploration Ltd Reports Drilling Results from Marda East Gold Project Sentinel Exploration Ltd. reported drilling results from its 100% owned Marda East Gold Project near Southern Cross WA. 33 holes for 2,915m of RC drilling was completed in the second drill program at Marda East and initial 3m composite assays identified a best interval of 30m @ 1.12g/t Au from 12m depth in drillhole 26MERC057. This interval includes two higher-grade 3m composite samples of 3m @ 5.35g/t Au from 15m and 3m @ 3.59g/t Au from 36m. The Phase 2 drill program at Marda East comprised 33 RC holes for 2,915m and was designed to follow up the maiden drilling program of 29 holes that was completed in late 2025 and further test selected areas of gold mineralisation. The system at Marda East represents a virgin gold discovery for Sentinel which is quite remarkable given the extensive historical exploration that has been conducted in the area. The reported intervals are based on 3m composite samples and is reported as downhole length, with true width not yet known. The Company has identified selected intervals, including the mineralised interval in 26MERC057, for 1m split sample assaying to advance the understanding of the thickness, grade distribution and continuity of gold mineralisation. The 3m composite results and pending 1m split assays will be integrated with the maiden drilling results, geological logging and petrographic work to advance the understanding of this gold system. Petrographic work has identified two major rock types which are AFG an Alkaline Feldspar Microgranite and KFG an Orthocline (K) Feldspar Microgranite with minor pyrite accessory arsenopyrite and minor quartz veining being associated with the gold mineralisation. The best composite interval identified from the second round of drilling, 30m @ 1.12g/t Au from 12m in 26MERC057 together with the other drill results to date are very encouraging and confirm a gold system to be present at the Marda East Project. The immediate focus is to complete the selected 1m split assays and 3 targeted diamond holes that will provide further higher-resolution data to determine the thickness, grade distribution and continuity of mineralisation. Next Steps: Complete collection and submission of selected 1m split samples and receive assay results. Integrate 3m composite and 1m split assay data with the maiden drilling results, soil geochemistry and geological interpretation. Review petrographic results, lithological logging and alteration data to assist interpretation of rock types and mineralised zones. Prepare appropriate plan-view and/or downhole graphics. Three short, orientated diamond holes twinning and near to mineralised zones and structures in two of the key target areas. Board Change • May 20
Less than half of directors are independent No new directors have joined the board in the last 3 years. The company's board is composed of: No new directors. 3 experienced directors. No highly experienced directors. 1 independent director (2 non-independent directors). Independent Non-Executive Director Glenn Zamudio was the last independent director to join the board, commencing their role in 2021. The following issues are considered to be risks according to the Simply Wall St Risk Model: Minority of independent directors. Insufficient board refreshment. 
