Barton Gold Holdings Limited Expands Silver Footprint and Advances Tunkillia Drilling Program
Barton Gold Holdings Limited (ASX: BGD) has announced two complementary developments that underscore its strategy to consolidate a high‑grade silver portfolio in South Australia while moving a key exploration program toward a pre‑feasibility stage.
1. Infrastructure Sterilisation Drilling Begins at Tunkillia
On 19 August 2026, the company confirmed that infrastructure sterilisation drilling has commenced at the Tunkillia property. This phase will remove legacy drilling material, clean the borehole, and establish a stable foundation for the upcoming reverse‑circulation (RC) work that will ultimately support a JORC‑graded resource update. The sterilisation effort is a critical preparatory step that will enable the drilling crew to safely conduct high‑volume, high‑grade assays without contamination of the core and with minimal surface disturbance.
The Tunkillia property already hosts a 3.1 million‑ounce silver resource (58 000 m of drilling completed in 2025). Barton is now preparing a Pre‑Feasibility Study (PFS) that will assess the economics of a low‑cost, high‑margin silver mine, and it is concurrently pursuing a mining lease application and financing discussions. The sterilisation drilling signals that the company is accelerating the Tunkillia timeline, positioning the asset to become a key contributor to Barton’s South Australian strategy.
2. New High‑Grade Assays Extend Tolmer Silver Discovery
In a separate announcement dated 17 August 2026, Barton reported that a 3,677 m RC drilling program has yielded a suite of new assays that significantly extend the Tolmer silver discovery. The data set includes several intersections that exceed 2,000 g t‑Ag and demonstrate the presence of both silver and gold at high grades:
| Hole ID | Interval | Ag (g t‑Ag) | Au (g t‑Au) |
|---|---|---|---|
| TBM0258 | 10 m @ 399 g t‑Ag & 0.55 g t‑Au (56 m) | 399 | 0.55 |
| TBM0259 | 4 m @ 954 g t‑Ag & 1.23 g t‑Au (56 m) | 954 | 1.23 |
| TBM0259 | 16 m @ 120 g t‑Ag (5 m) | 120 | – |
| TBM0259 | 16 m @ 493 g t‑Ag & 0.66 g t‑Au (50 m) | 493 | 0.66 |
| TBM0260 | 12 m @ 194 g t‑Ag (14 m) | 194 | – |
| TBM0260 | 13 m @ 364 g t‑Ag & 0.74 g t‑Au (44 m) | 364 | 0.74 |
| … | … | … | … |
These assays infill the shallow, high‑grade “western silver zone” and extend its strike to over 500 m. The data also reveal broad, high‑grade intersections in the eastern gold zone, adding new prospects for a dual‑metal operation. Preliminary petrology and structural interpretation work is now underway, and Barton intends to prepare composite samples from the recent drilling for a full metallurgical analysis.
The Tolmer discovery, first highlighted in 2025 with a record intersection of 6 m @ 4,747 g t‑Ag at 46 m depth, continues to deliver trial concentrates grading over 100,000 g t‑Ag (≈ 10 % silver). The expanding footprint and sustained high grades suggest a low‑cost, high‑margin potential that Barton will explore further in forthcoming JORC‑compliant reports.
3. Governance Update – Director’s Interest Notice
A change of Director’s Interest Notice was filed on 18 August 2026. While the notice does not detail the specific nature of the interest, it indicates ongoing compliance with ASX disclosure obligations and the company’s commitment to transparent governance.
4. Forward‑Looking Outlook
The combined progress on Tunkillia’s infrastructure and the robust Tolmer assay results reinforce Barton’s positioning within Australia’s high‑grade silver sector. With the infrastructure sterilisation at Tunkillia completed and a pre‑feasibility study on the horizon, the company is well placed to evaluate a commercial mine that could leverage the low‑grade, high‑grade intersection profile of the site. Meanwhile, the Tolmer property’s expanding high‑grade intersections will likely attract further investment in metallurgical testing and potentially a separate mine plan.
Barton’s market capitalization of AUD 263 million and a trading price near AUD 0.97—well below its 52‑week low of AUD 0.69—suggests that the market has yet to fully price in these developments. The company’s negative price‑earnings ratio of –12.62 reflects its current exploration‑phase focus, but the forward‑looking data presented today signal a potential shift toward monetization within the next 12–18 months.
