Golden Horse Extends High-Grade Gold Mineralisation Over 3km at Southern Cross

Strong Gold Intercepts Confirm Large Mineralised System

Golden Horse Minerals Limited (ASX:GHM) has reported a series of robust gold assay results from its Southern Cross Gold Project, centred on the Hopes Hill area roughly 7km north of Southern Cross town. The latest drilling campaign continues to confirm a substantial mineralised corridor stretching over 3 kilometres, with multiple wide and high-grade intercepts emerging from both Reverse Circulation (RC) and Diamond Drilling (DD) programs.

Standout results include 8 metres at 9.1 g/t Au from 124m, including 4 metres at 17.4 g/t Au (hole 26HHRC148), and 4.4 metres at 12.4 g/t Au from 234.5m (hole 26HHDD018), among several other significant intercepts across the Hopes Hill North, Main, and South zones. These hits reinforce the presence of multiple lodes and complex structural controls, with mineralisation dipping steeply west and true widths estimated between 40% and 80% of downhole lengths.

Mining Lease Applications and Resource Estimation in Progress

In a notable development, Golden Horse has submitted two mining lease applications at Hopes Hill North to the Western Australia Department of Mines, Petroleum and Exploration. These applications cover areas adjacent to existing granted mining leases and are intended to support minor infrastructure to facilitate mining operations. The proximity to sealed roads and the town enhances the logistical appeal of the project.

Complementing these regulatory steps, the company has engaged an independent resource geologist to prepare its inaugural Mineral Resource Estimate (MRE) for Hopes Hill, with completion targeted by the end of calendar year 2026. This MRE will integrate the extensive drilling data, which by then will exceed 100km of combined RC and diamond core drilling completed since 2025.

Regional Exploration Accelerates with Greenfields Programs

Beyond Hopes Hill, Golden Horse has ramped up regional exploration efforts across several Southern Cross prospects including Greenmount, Bells, and Lynette. Recent RC drilling campaigns at these locations have concluded for the first half of 2026, with early-stage greenfields exploration activities such as mapping, sampling, and auger drilling scheduled to resume in July 2026. These efforts aim to identify new targets and extend the company's footprint within the prolific Southern Cross Greenstone Belt.

The company’s Managing Director, Nicholas Anderson, emphasised the strategic significance of Hopes Hill, stating it is poised to become the next major mining operation in the region. His comments highlight the company's confidence in the deposit’s scale and grade, as well as the benefits of its location on granted leases close to existing infrastructure.

Technical Insights and Drilling Highlights

Technical analysis reveals that mineralisation at Hopes Hill is structurally hosted orogenic gold, associated with quartz veining and significant alteration minerals such as sericite and biotite, alongside sulphide minerals including pyrite and pyrrhotite. Recent diamond drilling has successfully twinned earlier RC holes, confirming continuity and grade consistency at depth.

Noteworthy intercepts include 6.5m at 4.1 g/t Au and 9m at 2.5 g/t Au from hole 26HHDD017, which also provided critical structural data on fault dislocations affecting mineralisation. Similarly, hole 26HHRC183 extended a high-grade zone by approximately 130m to the north, indicating the potential for further strike extensions.

These results build on earlier successes documented in the company’s 2026 drilling campaign, which has been marked by safe and efficient operations across multiple rigs targeting both extensions of known mineralisation and new regional prospects. The ongoing integration of geological, structural, and assay data is sharpening the company’s understanding of the deposit’s geometry and grade distribution.