Golden Horse Drills Increasingly High-Grade Gold at Greenmount Prospect

Greenmount Drilling Confirms High-Grade Gold Continuity and Depth Extension

Golden Horse Minerals (ASX:GHM) has unveiled compelling results from its initial nine-hole reverse circulation (RC) drill campaign at the Greenmount prospect, part of its Southern Cross Gold Project in Western Australia. Every hole intersected significant gold mineralisation, with assays indicating not only consistent grades but a notable increase in both grade and width at depth.

Standout intercepts include 8 metres at 16.3 grams per tonne (g/t) gold from 209 metres downhole in hole 26GMRC006, featuring a 3-metre section grading 37.6 g/t Au. Other highlights include 8 metres at 8.6 g/t Au from 218 metres and 12 metres at 5.2 g/t Au from 139 metres. These results extend the known mineralised system over a +230-metre strike and more than 150 metres vertically, underpinning the prospect’s potential for down-plunge extensions beyond historical workings that ceased mining above the water table in 1912.

The mineralisation at Greenmount is structurally hosted along the contact between meta-sediments and meta-mafic rocks, with pervasive quartz veining and sulphide mineralisation evident in drill chips. This geological setting provides a consistent target for future deeper drilling, aiming to delineate further high-grade zones. The proximity of a 57,000-ounce resource held by Barto Gold Mining immediately north of Golden Horse’s tenure adds regional context to the prospectivity of the Greenmount trend.

Withers Prospect Stockpiles Show High-Grade Potential

At the Withers prospect, located east of Bullfinch, Golden Horse’s grab sampling of historic mullock piles has confirmed the presence of high-grade gold mineralisation associated with quartz veining in granite host rocks. Among over 150 samples, numerous assays exceeded 1.0 g/t Au, with the highest returning 15.08 g/t Au. These remnants from shallow historic mining, which produced approximately 1,300 ounces at grades above 30 g/t Au, represent a low-cost exploration opportunity and a priority target for follow-up RC drilling planned later this year.

Bells and Lynette Drilling Progress with Assays Pending

Golden Horse has also completed a small RC drilling program at the Bells and Lynette prospects, situated about 15 kilometres south of Southern Cross. These targets represent different mineralisation styles hosted in mafic and banded iron formation lithologies, respectively. Except for the first two holes at Bells which returned no significant assays, results from the remaining holes are awaited. The assay outcomes will guide the next phase of exploration and drilling at these prospects.

Ongoing Resource Definition at Hopes Hill and Regional Exploration Plans

While regional drilling wraps up for the first half of 2026, resource definition drilling continues at Golden Horse’s flagship Hopes Hill project. Diamond drilling is progressing alongside core logging and assaying, with an independent resource geologist engaged to deliver the company’s inaugural Mineral Resource Estimate by the end of the calendar year. This milestone is anticipated to provide a foundational valuation metric for the deposit.

Looking ahead, Golden Horse plans to resume early-stage exploration activities including field mapping, sampling, and auger drilling from July 2026, ahead of further RC drilling campaigns across its Southern Cross tenure. Managing Director Nicholas Anderson emphasised that the Greenmount results demonstrate the success of their regional exploration strategy and hinted at more news to come from both regional and flagship projects, underscoring the company’s diversified growth approach within this prolific gold belt.

These developments add to a growing body of evidence that Golden Horse Minerals is steadily advancing multiple fronts in its Southern Cross portfolio, with the potential for new discoveries complementing the ongoing work at Hopes Hill. The pending assay results from Bells and Lynette, alongside the upcoming Hopes Hill resource estimate, will be pivotal in shaping the company’s near-term exploration narrative.