Gateway Mining Launches 50km Soil Sampling Hunt at Glenburgh South

Gateway Mining Launches First Systematic Geochemical Hunt Across 50km of Untested Gold Corridor

Gateway Mining (ASX: GML) has commenced a major regional soil sampling program at its Glenburgh South Project in Western Australia's Gascoyne region, marking the first systematic geochemical assessment of structural corridors the company believes could host repetitions of one of Australia's most closely watched recent gold discoveries, Benz Mining Corp's Glenburgh Gold Deposit.

The Gateway Mining Glenburgh South soil sampling program for gold exploration targets approximately 50 kilometres of largely untested structural strike, with over 2,400 soil samples designed to vector into potential gold mineralisation along two priority corridors. With $15.1 million in cash and liquid securities at the end of the June 2026 quarter, Gateway is positioned to advance this exploration phase through to drill targeting.

The Neighbour Next Door: Why Benz Mining's Success Matters to Gateway Investors

To understand the significance of Gateway's current program, it is useful to consider what has unfolded immediately next door. Benz Mining Corp (ASX: BNZ) has developed the Glenburgh Gold Deposit into a discovery that has delivered the company a market capitalisation reported to be in excess of $1 billion over the past year.

Gateway's Glenburgh South Project sits within the same broader Glenburgh district. According to the company's announcement, both of its priority target corridors — the Errabiddy Target and the Northern Shear Corridor — are interpreted to occur within the same prospective host stratigraphy and along parallel structural trends to the mineralised corridor hosting Benz's deposit.

Recent high-resolution magnetic imagery completed earlier in 2026 identified polyphase folding, major shear zones, and what the company describes as favourable structural repetition of the geological architecture hosting the Glenburgh Deposit.

"The ongoing phenomenal success of Benz highlights what is possible if Gateway delineates repeats of the mineralisation, with Glenburgh having recently delivered Benz a market capitalisation in excess of $1 billion in a relatively short period of time," said Richard Pugh, Chief Executive Officer of Gateway Mining.

This forms the basis of Gateway's exploration rationale: the geological setting has, in the company's view, been supported by a neighbouring discovery, and Gateway now controls a substantial strike length of interpreted analogous, untested ground.

Two Priority Corridors, 50 Kilometres of Opportunity

The soil sampling program is focused on two structurally defined target areas, both identified through Gateway's recently completed magnetic survey interpretation and hyperspectral remote sensing studies.

Errabiddy Target

The Errabiddy Target is a regionally extensive structural corridor running approximately 50 kilometres in strike length. Despite its favourable geological setting and interpreted similarities to the Glenburgh Deposit, it has not previously been subject to a systematic geochemical program. The current soil sampling campaign will cover 25 kilometres of this corridor, representing its first structured exploration assessment, according to the announcement.

Northern Shear Corridor

The Northern Shear Corridor extends for approximately 25 kilometres and exhibits characteristics the company describes as consistent with regional gold-bearing shear systems observed elsewhere in the Glenburgh Terrane. Magnetic interpretation suggests it may represent a potential repetition of the mineralising architecture identified at Glenburgh, consequently providing a second, independent exploration focus within the same project area.

What Is Soil Sampling and Why Does It Matter?

Soil geochemistry is a widely used first-pass exploration technique in gold discovery workflows. It involves collecting soil samples at regular intervals across a defined area and analysing them for trace element concentrations, including gold, that may indicate mineralisation beneath the surface.

In simple terms, mineralised rock systems — even those concealed beneath transported surface cover — can leave geochemical traces in overlying soils. A systematic soil sampling program allows explorers to identify anomalous zones, where gold or pathfinder element concentrations are elevated, before committing to the significantly higher cost of drilling.

Why it matters to investors:

• Soil sampling is a cost-effective way to screen large areas of ground and rank targets by priority
• Anomalies identified through soil geochemistry are typically the first step toward defining drill targets
• The program will be integrated with existing magnetic and hyperspectral datasets, creating a multi-layer geological model intended to strengthen confidence in any drill targets generated
• Results from this program are expected to inform Gateway's drilling decisions for the next phase of exploration, according to the company

Glossary of key terms:

• Shear zone: A zone of intense deformation where rock has been fractured and displaced, commonly associated with gold mineralisation in Western Australian greenstone and gneissic terranes
• Stratigraphy / host stratigraphy: The sequence of rock layers; "same host stratigraphy" means the rocks Gateway is targeting are interpreted to be geologically equivalent to those hosting Benz's gold deposit
• Polyphase folding: Multiple episodes of rock folding, which creates complex structural geometries that can trap and concentrate gold-bearing fluids
• Geochemical anomalism: Elevated concentrations of gold or associated elements in samples, indicating potential mineralisation below
• Hyperspectral / remote sensing: Satellite or airborne imagery that detects mineralogical signatures at the surface, used to guide on-ground exploration targeting

Program Design and What Comes Next

The 2,400-sample soil program has been designed to provide systematic geochemical coverage across both corridors and their associated secondary structures. Field crews have commenced sampling following an improvement in ground conditions after a period of significant wet season rainfall that had temporarily delayed access to the project area.

Sampling is expected to take approximately four weeks to complete, with results anticipated later in the current quarter, according to the announcement dated 3 August 2026.

The program is designed to achieve the following:

1. Delineate gold anomalism along the Errabiddy Target corridor
2. Evaluate the Northern Shear Corridor's mineralisation potential
3. Test interpreted structural intersections and fold-related targets — areas where structural complexity can concentrate gold
4. Identify concealed mineralised trends beneath transported surface cover
5. Prioritise targets for follow-up geological mapping and, ultimately, drilling

Once results are received, the company has stated they will be integrated with magnetic survey data and hyperspectral datasets to refine geological models. This synthesis is expected to help define drill targets for the next exploration phase.

Anticipated milestones:

Financial Position Supports a Full Exploration Program

A key consideration for junior explorers is whether a company has sufficient capital to execute its exploration plans without facing near-term funding pressure. Gateway enters this program in a reportedly strong position.

According to the quarterly update, the company held $15.1 million in cash and liquid securities at the end of the June 2026 quarter, providing the financial capacity to complete the Gateway Mining Glenburgh South soil sampling program for gold exploration, process results, and advance to the next stage of exploration — including drilling — without requiring immediate capital market activity.

This is a relevant factor for investors evaluating exploration-stage companies. On the basis of the disclosed cash position, the program already underway appears funded from existing resources rather than being contingent on near-term capital raising.

The Investment Case: Exploration Exposure to a Proven District

Gateway Mining's Glenburgh South program reflects a specific type of exploration opportunity: exposure to ground adjacent to an established discovery, supported by geophysical interpretation pointing to untested analogous targets.

Key elements of the investment case:

• Proximity to a well-capitalised discovery: Benz Mining's Glenburgh Deposit has been associated with a market capitalisation reported in excess of $1 billion. Gateway controls ground along parallel structural and stratigraphic trends, now being tested for the first time
• 50 kilometres of largely untested strike: Both the Errabiddy Target and Northern Shear Corridor have not previously been subject to systematic geochemical programs, according to the company
• Multi-dataset targeting approach: The soil program builds on recently completed magnetic survey interpretation and hyperspectral studies, providing an integrated geological framework intended to support target generation
• First-pass systematic testing: Despite the corridor's interpreted prospectivity, the company states no prior operator has systematically geochemically tested these trends
• Funded exploration program: With $15.1 million in cash and liquid securities reported at quarter-end, the company states it can execute this program and advance toward drilling without near-term funding pressure

Why Investors Should Keep Watching GML

Gateway Mining is progressing an exploration program combining a geological rationale linked to a neighbouring discovery, a large and previously untested exploration footprint, and a funded program now generating field activity.

The Gateway Mining Glenburgh South soil sampling program for gold exploration represents the first substantive geochemical assessment of 50 kilometres of structurally analogous, largely unexplored ground in the Glenburgh district, as described in the company's announcement. Furthermore, whether the results support the geological thesis or serve to refine targeting, the coming weeks are set to provide additional information for investors tracking the company's progress.

Key Takeaway
Gateway Mining has outlined direct geological exposure to structural and stratigraphic trends interpreted as analogous to those hosting a significant nearby gold discovery. With 50 kilometres of previously untested strike now under systematic geochemical investigation, a reported cash position of $15.1 million, and results expected later this quarter, GML represents a company for investors to monitor as this exploration phase progresses.

With results expected later in the current quarter, the upcoming data release stands as a near-term catalyst for investors to monitor.

Ready to Explore What Gateway Mining Is Uncovering at Glenburgh South?

Gateway Mining (ASX: GML) is conducting its first systematic geochemical assessment across 50 kilometres of structurally prospective, largely untested ground in one of Western Australia's most closely watched gold districts — backed by $15.1 million in cash and liquid securities, with results expected this quarter. For investors seeking exposure to early-stage exploration with a clear near-term catalyst, now is the time to learn more about GML and the Glenburgh South Project. Visit the Gateway Mining website to find out more.