Resolution Minerals Hits 305m Gold Discovery at Untested Idaho Target

Resolution Minerals has drilled gold at a target that had never seen a drill bit, and the numbers from the first three holes are doing the talking. At Golden Gate South, part of the broader Horse Heaven Project in Idaho, hole HH-GG26-003C returned 305.7 metres grading 0.64 g/t gold from surface. All three holes hit mineralisation. The company has called it a discovery, and the intercepts support that label.

Golden Gate South sits adjacent to Perpetua Resources’ Stibnite Gold Project and had been identified through soil geochemistry work dating back to 2021, but no drill testing had ever been conducted. That changed with the 2026 campaign. The broader programme has now reached 33 completed holes, yet only three results have been released publicly, meaning this announcement represents the first data point in what will be a substantially larger sequence of disclosures.

Here is what the initial results show, what the remaining 25-plus unreported holes could establish, and what the geology tells you about the scale of what may have been found.

Three holes, one discovery: what the initial Golden Gate South results actually show

The headline intercept came from HH-GG26-003C: 305.7 metres at 0.64 g/t gold from surface, with higher-grade intervals of 6.5 metres at 1.33 g/t gold from 62 metres and 17.25 metres at 1.19 g/t gold from 264.85 metres. That is a continuous mineralised column running from the surface to more than 300 metres depth, with pockets of grade concentration distributed through it.

HH-GG26-002C added to the picture. It returned 32.6 metres at 0.49 g/t gold from surface, then a deeper interval of 87.87 metres at 0.52 g/t gold from 48.97 metres, including 37.42 metres at 0.72 g/t gold. Two separate mineralised zones stacked vertically, both starting near surface.

HH-GG26-001C, the third hole, delivered 49.5 metres at 0.58 g/t gold from surface, including 24.64 metres at 0.78 g/t gold from 17.86 metres, plus a deeper intercept of 13.39 metres at 0.44 g/t gold at depth.

Mineralisation across all three holes is hosted in arsenopyrite-pyrite within quartz veins and shear zones, a style interpreted as shear-hosted or intrusion-related gold, analogous to the nearby Stibnite deposit. Associated tungsten mineralisation has been intersected in shallow veins and other holes, supporting a broader gold-tungsten system rather than isolated gold occurrences.

The arsenopyrite-pyrite assemblage within quartz veins observed across all three holes is consistent with hydrothermal gold vein formation in intrusion-related systems, where gold is precipitated from metal-bearing fluids as they interact with sulphide-rich host rocks at depth.

Craig Lindsay, CEO of US Operations, characterised the results as especially significant given that Golden Gate South had never previously been drill-tested, making these genuine discovery holes rather than follow-up confirmation of known mineralisation.

Three holes at a previously untested target, all returning gold from surface. That is what separates a discovery from an intercept: the geological thesis behind Golden Gate South has been validated in the most direct way possible, and the 305-metre intercept provides the volumetric scale that resource-stage estimation eventually requires.

A two-kilometre shear zone: the geological picture taking shape at Horse Heaven

The path to this discovery was not a speculative punt. Soil geochemistry studies from 2021 onwards identified a substantial anomalous target at Golden Gate South, including evidence of a tungsten anomaly flagged by a prior operator. Historical drilling at the broader Golden Gate area dated to 1988 and the early 1990s, but none of it tested the southern segment. The 2024-2025 campaign focused on Golden Gate North, confirming a significant shear-hosted gold system there. Then the 2025 precursor holes turned south.

The tungsten associations at Golden Gate South are not a 2026 surprise; prior reporting on tungsten mineralisation at Horse Heaven documented co-occurrence of gold and tungsten in earlier drill campaigns, providing the geological rationale for treating the two metals as components of a single system rather than separate occurrences.

What the 2025 holes established before this year’s campaign

Two holes drilled in 2025 established the geological foundation for the scale of the 2026 programme. HH-GG25-009C returned 172.2 metres at 0.463 g/t gold, including 27.6 metres at 0.89 g/t gold, and ended in mineralisation. HH-GG25-010C delivered 225.5 metres at 0.14 g/t gold from surface, also ending in mineralisation. Both confirmed a second mineralised shear zone beyond Golden Gate North. The 305.7 metres at 0.64 g/t intercept from the 2026 campaign represents a material step-change from those earlier results.

The southern extent of the Golden Gate system lies roughly 2,000 metres from Golden Gate North. Resolution Minerals interprets both as parts of a single continuous mineralised corridor along the Golden Gate Shear/Fault Zone. Known mineralisation is now defined over strike lengths of roughly 1.5 kilometres or more, up to approximately 300 metres in width, and remains open at depth and along strike.

Infill drilling to bridge the gap between the two zones is currently being permitted, with work in that corridor scheduled for 2027. The current 2026 campaign tests the northern and southern segments independently.

The key questions that remain open:

• Does mineralisation connect continuously between Golden Gate North and Golden Gate South, or are they offset or parallel systems along the broader fault zone?
• How far does the system extend at depth below the current drilling?
• What is the full scope of the tungsten system and its relationship to the gold mineralisation?

A mineralised shear zone confirmed over at least two kilometres of strike, with open extensions in multiple directions, means the scale ceiling on this system has not yet been found. That is the condition early-stage investors look for before a resource estimate is attempted: room to grow.

Twenty-five holes still to report: the news flow calendar through late 2026

The three holes reported on 24 August 2026 are the trailer, not the feature. The full programme planned up to approximately 40-45 diamond holes targeting approximately 13,700 metres. By late August 2026, the campaign had yielded 33 completed holes totalling around 9,700 metres, with 28 logged and submitted to the laboratory, while only 3 results had reached the market.

Craig Lindsay identified September and October 2026 as the active assay release window, with results flowing progressively thereafter. Drilling can continue through to mid-September 2026 under a permit extension, enabling the company to finalise all holes sanctioned under the current authorisation.

The three questions the remaining assays are positioned to answer:

The maiden resource estimate targeted for late 2026 to Q1 2027 will follow the mineral resource estimate process of converting drill intercept data into classified Inferred, Indicated, and Measured categories, a sequence that requires sufficient hole spacing, grade continuity, and geological interpretation before a compliant estimate can be published.

1. Grade consistency: Do the remaining holes maintain the 0.4-0.7 g/t range over broad widths, or does grade taper in certain directions?
2. North-South continuity: Do any of the 2026 holes provide evidence that the two segments connect along the Golden Gate Shear/Fault Zone?
3. Tungsten co-occurrence: How widespread is the associated tungsten mineralisation, and does it add meaningful value to the overall system?

Twenty-five unreported holes from a programme that has already produced a discovery-status result means the investor-relevant news flow is front-loaded into Q3-Q4 2026. You are positioned at the start of that release sequence, not the middle.

Grade, width, and depth: how Golden Gate South compares to the open-pit exploration benchmark

Grades in the 0.4-0.7 g/t range over hundreds of metres at or near surface fall within the envelope that has supported large open-pit gold operations in comparable North American settings. The near-surface starting point of all three holes is significant: open-pit economics are sensitive to both grade and geometry simultaneously, and these intercepts satisfy both conditions.

This project remains firmly at the exploration and discovery stage. No resource estimate, metallurgical testwork, or economic study has been published for Golden Gate South. All economic comparisons at this stage are qualitative only.

The Stibnite Gold Project next door provides a geological and jurisdictional reference point, not an equivalence claim. Both projects share a mineralisation style characterised by shear-hosted gold with antimony and tungsten associations in the Idaho geological setting, placing them in the same broad geological context. Whether Golden Gate South ultimately approaches that scale depends entirely on work that has not yet been done.

Resolution Minerals holds 100% ownership of Horse Heaven and is listed on the ASX (RML), OTCQB (RLMLF), and Frankfurt (NC3).

Resolution Minerals’ dual listing on the ASX and OTCQB means its share price is also exposed to broader moves in ASX gold stocks, which rallied sharply in mid-2026 as geopolitical risk premiums drove institutional rotation into gold equities across the sector.

The four near-term value drivers for investors tracking this story:

• Grade and width consistency across the remaining 25 assay results
• Geological continuity evidence between Golden Gate North and South
• Scope and economic relevance of the tungsten co-occurrence
• Progress toward a maiden resource estimate, targeted for late 2026-Q1 2027

This article is for informational purposes only and should not be considered financial advice. Investors should conduct their own research and consult with financial professionals before making investment decisions. These statements are speculative and subject to change based on market developments and company performance.

What the next sixty days will tell investors about the scale of this find

Three variables will define whether Golden Gate South develops into a resource-scale target or remains a discovery awaiting further definition. The assay results flowing through September and October 2026 will address all three: grade consistency across the full programme, continuity evidence between the northern and southern segments, and the scope of the tungsten system.

The maiden resource estimate timeline of late 2026 to Q1 2027 depends on the quality and coherence of this data. If the remaining 25 holes maintain the grade and width profile of the first three, the dataset supports a resource calculation. If they introduce significant variability, the timeline extends.

The investor watch-list for the next 60 days:

1. Grade consistency: Watch whether reported grades across subsequent holes hold within the 0.4-0.7 g/t range over broad intercepts, or whether the 305-metre result proves to be the programme’s outlier.
2. Continuity confirmation: Look for holes positioned between Golden Gate North and South that show mineralisation bridging the gap. Any intercept in the intervening ground would materially change the geological interpretation.
3. Tungsten scope: Track whether tungsten intersections are confined to shallow veins or extend through the system at depth, which would broaden the economic profile of the project.

The single most consequential finding that could emerge from the pending assays is North-South continuity. Its resolution determines whether Horse Heaven should be valued as two separate exploration targets or a single mineralised corridor stretching more than two kilometres. That distinction materially changes the resource estimation framework, and the data to answer it is already in the lab.