M3 Mining Identifies Multiple Gold Anomalies at Edjudina Project via Ultra-Fines Soil Survey

Advanced Ultra-Fines Soil Sampling Conducted Across Edjudina Project

M3 Mining completed a detailed 479-sample ultra-fine soil sampling program across the Yilgangie and Broken Hill Bore prospects as part of its methodical exploration strategy at the Edjudina Gold Project. Developed by CSIRO, the ultra-fine technique is tailored for deeply weathered greenstone terrains and effectively maps ore bodies at depth by detecting subtle geochemical signatures that conventional larger-fraction sieving methods might overlook. This method is especially beneficial for Edjudina’s landscape, characterized by windblown sand, salt lake clays, and alluvial cover over extensive areas.

Choosing ultra-fines sampling underscores M3 Mining’s strategic exploration approach. Operating near major mining hubs, the company identified minimal modern, systematic exploration at its projects. By applying cutting-edge geochemical techniques, M3 Mining aims to unlock value through meticulous evaluation and prioritization of its assets, which it believes hold potential for significant discoveries. This disciplined methodology aligns with the company’s commitment to systematic, cost-efficient value creation.

Yilgangie Prospect Reveals Two Significant Gold Anomalies Confirmed by Historic Drilling

The Yilgangie prospect yielded positive results from the ultra-fines soil survey, defining two major gold anomalies. The eastern zone features a 2.3 km gold anomaly spatially linked to historic drilling intersections, including 2m @ 3.9 g/t Au from 33m depth and a higher-grade 1m @ 6.2 g/t Au. Additional historic drilling recorded 5m @ 0.5 g/t Au from 64m, including 1m @ 1.3 g/t Au. These historic data independently confirm mineralisation within the soil anomaly, supporting the geochemical findings.

The western zone at Yilgangie presents a 1.2 km strike-length anomaly with no prior drilling. Both Yilgangie targets are associated with hematite-altered monzonite intrusive suites, geologically similar to the Porphyry Gold Mine located 10 km east. Positioned on strike from historic Yilgangie Gold Mines immediately north of the prospect, these geological and spatial associations enhance the prospects for follow-up exploration.

Broken Hill Bore Anomalies Near Operating Neta Gold Mine

At Broken Hill Bore, two promising anomalies emerged from the ultra-fines soil program, linked to structural and lithological features favorable for gold mineralisation. Both anomalies align with north-northwest to south-southeast trending banded iron formation (BIF) units and east-west faulting offsetting the BIF. The first zone covers 1.6 km along BIF units, with high-grade rock samples up to 65.0 g/t Au and others at 4.3 g/t Au. Historic workings in this zone suggest prior recognition of mineralisation.

The second anomaly defines a 1.0 km east-west zone in a new prospective area lacking previous drilling. Notably, Broken Hill Bore lies just 6 km from the producing Neta Gold Mine, operated jointly with BML Ventures, which produced around 5,000 ounces of gold this year via toll treatment at the Three-Mile Hill facility. This proximity underscores the geological potential of M3 Mining’s targets within a proven gold-mining district.

Geochemical Data Reinforces Systematic Exploration at Edjudina

The 479-sample ultra-fines program’s geochemical statistics provide context for the soil sampling outcomes. The highest assay was 91.5 parts per billion (ppb) gold, indicating anomalously elevated gold levels. The average gold concentration was 7.8 ppb, with a median of 5.2 ppb, showing elevated values are relatively common. Values ranged over 90.7 ppb with a standard deviation of 9.2 ppb, consistent with mineralised environments.

These results enabled M3 Mining to delineate four discrete anomalies spatially related to known geological features and historic mineralisation. Background gold levels were as low as 0.8 ppb, while the peak of 91.5 ppb reflects significant anomalies. The ultra-fines method allowed detection of subtle geochemical footprints beneath challenging surface conditions, forming the basis for identifying targets warranting further exploration.

Heritage Agreement Advancement Facilitates Upcoming Field Activities

M3 Mining reported positive progress on its heritage agreement, aiming to conduct heritage surveys across the Edjudina Gold Project. Securing heritage approvals is essential for advancing exploration, especially in areas with significant cultural heritage. The company’s update indicates ongoing constructive engagement with Aboriginal stakeholders and anticipates formal approvals soon.

Completion of heritage surveys will clear a major administrative hurdle, enabling ground-based exploration. Following heritage clearance, M3 Mining plans to validate soil anomalies on-site and conduct field mapping. This standard exploration step assesses anomaly expressions, local geology, and identifies further targets. The combination of heritage progress and planned fieldwork positions the project for systematic exploration in the coming months.

Strategic Exploration Focus on Underexplored Assets

M3 Mining’s exploration strategy prioritizes systematic, cost-effective methods to unlock value across its project portfolio. The company targets base metal and gold assets situated near major mining operations, benefiting from existing infrastructure and proven geology. Both projects have seen limited modern systematic exploration, presenting significant opportunities for value creation through disciplined programs.

The Edjudina Gold Project exemplifies this approach. Located approximately 150 km northeast of Kalgoorlie within Archaean greenstone belts, it lies in a geologically prospective region with historic mining and active gold operations. Employing advanced techniques like ultra-fines soil sampling demonstrates M3 Mining’s commitment to tailored methodologies suited to local geological and climatic conditions. By systematically evaluating and prioritizing opportunities, the company aims to identify discoveries that could significantly enhance shareholder value.

Next Exploration Phase: Ground Validation and Geological Mapping

Following the ultra-fines soil results, M3 Mining plans to conduct ground verification of soil anomalies and field mapping at Yilgangie and Broken Hill Bore. Ground checking involves on-site evaluation of anomalies, enabling geologists to observe physical characteristics, collect additional samples if needed, and study local geology. This validates geochemical interpretations and may reveal new exploration targets.

Field mapping will systematically document rock types, alteration, structures, and surface mineralisation expressions, providing geological context to the anomalies and supporting prospectivity assessments. Alongside ongoing heritage agreement progress, these activities represent a measured advancement of the exploration program. The company remains committed to a systematic, cost-efficient approach, with future work phases contingent on validation outcomes and portfolio priorities.

Project Location and Geological Context in Established Gold Region

The Edjudina Gold Project is located in Western Australia’s established gold mining district, approximately 150 km northeast of Kalgoorlie. The area comprises Archaean greenstone belts typical of gold-bearing formations responsible for significant mineral resources in the region. Historic mines such as Yilgangie highlight the district’s gold potential, while the nearby operating Neta Gold Mine, just 6 km from Broken Hill Bore, confirms the area’s capacity for economic gold production.

Proximity to established mining operations offers M3 Mining strategic advantages, including access to infrastructure like the Three-Mile Hill toll treatment plant processing Neta Gold Mine ore. The Porphyry Gold Mine, 10 km east of Yilgangie, provides additional insight into regional mineralisation styles. These factors, combined with minimal modern exploration in the area, suggest substantial upside potential for disciplined exploration.

Competent Person Statement and Quality Assurance

This update is supported by a Competent Person's Statement from Mr Henry Renou, an independent consultant for M3 Mining and member of the Australian Institute of Geoscientists (AIG). Mr Renou possesses relevant experience for the mineralisation styles and exploration activities described, qualifying under the 2012 JORC Code. He has consented to the inclusion of his findings as presented.

The ultra-fine soil sampling followed standardized protocols, with samples collected from cleared surfaces to about 25 cm depth and dry sieved to obtain 200-300 grams of -2 mm fraction material. Quality assurance included field duplicates, standards, and blanks every 100 samples. Samples were analyzed at LabWest Minerals Analysis using the Ultrafine™ method targeting <2 micron fractions for gold and a 52-element multi-element package via aqua regia microwave digestion. The Competent Person considers these procedures appropriate for early-stage exploration. No third-party assay checks were conducted, consistent with standard practice at this stage.