What Gateway Mining (ASX:GML) has found in its first Glenburgh South soil sampling results

Sonal Goyal

06 October 2026 05:34 PM AEDT

What Gateway Mining (ASX:GML) has found in its first Glenburgh South soil sampling results

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Gateway Mining Limited (ASX:GML) has reported the first assay results from a regional soil sampling programme at its Glenburgh South Project in the Gascoyne region of Western Australia, outlining two gold-in-soil anomalies that the company said each extend for approximately four kilometres of strike.

According to the announcement released on 6 October 2026, the anomalies coincide with regional structural corridors interpreted from detailed magnetic datasets. The project sits within the broader Glenburgh Gold District, immediately south of Benz Mining Corp's (ASX:BNZ) Glenburgh Gold Project.

What the sampling showed

The results come from 338 surface soil samples collected on a wide-spaced 200m x 800m grid and analysed for gold by ALS in Perth. The company described the work as the first systematic geochemical testing of its priority structural corridors.

The absolute gold values are low, which the announcement acknowledges. Summary statistics in Appendix A show a maximum of 8 parts per billion (ppb) gold, a mean of 0.28ppb and a 99th percentile value of 5.3ppb. The highest individual results listed include 8ppb in sample GSS1662, 7ppb in GSS1740 and 6ppb in GSS1503.

Chief Executive Officer Richard Pugh said the first results "have identified two sizeable gold-in-soil anomalies, each extending over approximately four kilometres of strike in a structurally favourable setting". He added that "the scale and continuity of the anomalism is very encouraging for an early-stage, first-pass regional program."

The company also said the broad nature of the anomalism was encouraging "given the reconnaissance scale of the program and the subdued geochemical response often associated with large gold systems occurring beneath weathered cover."

District context

Gateway pointed to nearby exploration success as part of its rationale. The announcement states that discoveries by Benz Mining have highlighted the prospectivity of the region, with Benz having a current Market Capitalisation of about $1.8 billion, according to Gateway.

Gateway acquired an 80% interest in Glenburgh South. At the time, the company said the roughly 620 square kilometre project hosted a structure it described as identical to the one hosting Benz's 510,100oz Glenburgh deposit, along with a historic 13km gold surface geochemistry anomaly that had not been followed up. The vendors hold a 20% interest that is free-carried to a definitive feasibility study, and the JORC table discloses a 1.0% gross return Royalty to Quinn Royalty Pty Ltd over the joint venture tenements. Three further tenements held 100% by Gateway remain in application.

Next steps and caveats

Field crews are undertaking geological mapping, rock-chip sampling and structural observations across the anomalous corridors, while soil sampling continues across two additional target areas. Planned work includes infill sampling where warranted, integrating geochemical, geological and geophysical data, and generating priority targets for first-pass drill testing. Additional assay results are expected over the coming months.

The company stated that it remains "extremely well capitalised" to undertake planned 2025 and 2026 exploration following its recent $45 million placement. It also noted that exploration drilling is continuing at its flagship Yandal Gold Project, with one reverse circulation rig at Cowza and an aircore rig testing splay structure targets, and that assays from the next batch of Cowza drilling are expected shortly.

Analysis: These are early-stage, reconnaissance results. No drilling has been reported at Glenburgh South, and the JORC table confirms the data relate only to soil geochemistry. Gold-in-soil values in single-digit ppb do not establish the presence of economic mineralisation, and the significance of the anomalies will depend on mapping, infill sampling and eventual drilling. The proximity to Benz's project provides geological context but does not, by itself, indicate that similar mineralisation exists on Gateway's ground. Forward-looking statements in the release are subject to the usual risks and uncertainties.

FAQs

Q: What did the soil sampling show?

A: A total of 338 samples on a 200m x 800m grid outlined two gold-in-soil anomalies, each extending approximately four kilometres of strike. Absolute values are low, with a maximum of 8 parts per billion gold.

Q: Has any drilling been done at Glenburgh South?

A: No drilling has been reported at Glenburgh South, and the JORC table confirms the data relate only to soil geochemistry.

Q: What is planned next?

A: Geological mapping, rock-chip sampling and structural observations are under way across the anomalous corridors, soil sampling continues across two additional target areas, and further assay results are expected over the coming months.

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