Barton Gold Holdings Reports Up to 170g/t Au High-Grade Mineralisation at Challenger Gold Project

Transformative High-Grade Gold Intercepts at Challenger Main and West Pits

During the quarter, Barton Gold achieved substantial exploration success at the Challenger Gold Project, with drilling confirming multiple zones of high-grade mineralisation surpassing initial targets. The program included 8,065 metres of reverse circulation (RC) drilling and 1,322 metres of diamond drilling (DD), aiming to upgrade JORC 2012 Mineral Resources to 'Indicated' status and test near-surface extensions for low-risk early-stage feed. Results validated the geological model and revealed mineralisation beyond previously modelled areas, enhancing project development flexibility.

Notable assay highlights include a 1-metre sample grading 170.7 g/t Au within a broader 10-metre interval averaging 17.7 g/t Au at the main pit, alongside multiple intercepts ranging from 5 to 50 g/t Au. At Challenger West pit floor, shallow high-grade mineralisation was confirmed with a 3-metre interval grading 20.6 g/t Au and a 1-metre peak of 59.5 g/t Au. These findings support the strategy of targeting pit extensions and near-surface material for Stage 1 operations, potentially supplementing feed beyond the initially planned tailings storage facility materials.

Central Gawler Mill Recommissioning Supports Low-Risk Stage 1 Development

The ongoing DFS at Challenger is structured around a 3–4 year Stage 1 baseline operation focusing on processing historical higher-grade tailings from tailings storage facility 1 (TSF1) and limited near-surface material, avoiding disturbance to the historical underground mine and infrastructure. A comprehensive condition assessment of the Central Gawler Mill (CGM) and associated infrastructure, alongside geotechnical and metallurgical drilling of TSF1, plus comminution and metallurgical testwork, confirmed the CGM’s technical and operational suitability for recommissioning. This represents a significant cost and risk reduction for Barton.

Recommissioning the CGM also enhances strategic options for Barton's regional portfolio, potentially processing material from the nearby Tarcoola and Wudinna Gold Projects, as well as the high-grade Tolmer silver prospect. Following updated Mineral Resources Estimates and metallurgical analyses from recent drilling, Barton will finalize scenario analyses to optimize startup and development pathways, prioritizing options that minimize capital and operational risks. The company targets DFS publication in Q1 2027, providing detailed capital and operating cost guidance for Stage 1.

Expanded Drilling at Tunkillia Gold Project Delivers Highest-Grade Results

At Barton’s 100%-owned Tunkillia Gold Project, Phase 2 drilling returned the highest-grade assays so far from the 'Area 51' and southern 'Area 223' zones, indicating potential resource growth and extended mine life. In response, Barton expanded the RC drilling program to approximately 40,000 metres and initiated around 3,000 metres of dual-rig diamond drilling during the quarter. These efforts aim to identify further mineralisation extensions and gather geotechnical and metallurgical data supporting the Pre-feasibility Study.

GR Engineering Services (GRES) has been appointed to lead the Tunkillia Pre-feasibility Study, targeting publication in Q1 2027. This feasibility work runs concurrently with the Challenger DFS, enabling Barton to evaluate development sequencing and resource prioritization across its portfolio. Dual feasibility releases in Q1 2027 will offer investors a comprehensive development pipeline and multiple value catalysts as Barton advances from exploration to development stages.

Tolmer Silver Prospect Demonstrates Exceptional High-Grade Potential

Barton’s 100%-owned Tolmer silver prospect has garnered attention after preliminary trial results showed concentrate grades exceeding 100,000 g/t silver. During the quarter, approximately 3,700 metres of follow-up drilling targeted extensions to the initial discovery, building on strong early results and providing geological data to support resource estimation and metallurgical design. Silver concentrates with grades above 100,000 g/t typically indicate robust economic prospects due to reduced processing costs and enhanced by-product recovery.

Tolmer is positioned as a promising addition to Barton’s development portfolio, with potential to utilize the Central Gawler Mill infrastructure if economic viability is confirmed. Investors await the formal Mineral Resources Estimate and guidance on economic parameters and processing strategies. Development timing will likely depend on progress at Challenger and Tunkillia, but the high-grade results suggest significant economic upside if the resource is defined and proven viable.

$26 Million Placement Secures Funding for Feasibility and Development Milestones

Barton completed a $26 million institutional placement during the quarter, led by new major shareholders Franklin Templeton and Aegis Financial. The placement was priced at a 3.5% discount to the closing market price, reflecting strong investor confidence. The equity raise resulted in approximately 11% dilution and capital raising costs below 2.5%, efficient by industry standards.

Funds raised fully support key milestones including the Challenger DFS targeting Q1 2027 publication, the Tunkillia Pre-feasibility Study, and ongoing evaluation of the Tolmer silver discovery. Barton currently holds $31.9 million in cash for operations and development, with an additional $4.5 million secured for rehabilitation guarantees. The company maintains a debt-free balance sheet, providing capital flexibility to advance multiple projects simultaneously and preserve strategic optionality.

Extensive Drilling Program Targets Resource Upgrades Across Portfolio

Over the past 10 months, Barton has completed nearly 70,000 metres of drilling across its projects, reflecting a significant investment in de-risking and upgrading mineral resources at Challenger, Tunkillia, and Tolmer. This extensive program aims to deliver multiple value inflection points through resource definition, category upgrades, and extension drilling to confirm mineralisation continuity and identify new zones. Results to date have validated geological models and supplied critical data supporting ongoing feasibility studies.

Pending Mineral Resources Estimate updates are expected to provide investors with detailed insights into resource size and quality, along with development economics assessed in the feasibility studies. Barton’s Managing Director anticipates multiple resource upgrades and further positive announcements throughout 2026 as drilling analyses conclude and updated JORC estimates are released. These milestones will be key catalysts as the company transitions from exploration to development phases.

Robust Capital Structure and Strategic Positioning for 2026–2027 Value Creation

As of 30 June 2026, Barton Gold has 270.5 million ordinary shares outstanding and 15.5 million unlisted options, establishing a clear capital structure post-placement. The company’s disciplined capital management is evidenced by $31.9 million cash (plus $4.5 million held as security) and zero debt, enabling management to fund development activities and explore strategic opportunities without refinancing pressure. The board includes Non-Executive Chairman Kenneth Williams, Managing Director and CEO Alexander Scanlon, and Non-Executive Directors Christian Paech and Graham Arvidson, providing strong technical and governance oversight during the critical feasibility and development stages.

During the quarter, Barton appointed a new Head of Corporate Affairs and Sustainability, underscoring its commitment to stakeholder engagement and responsible mining practices. The company’s South Australian assets benefit from established mining regions with operational infrastructure, skilled labour, and supportive regulatory frameworks. Investors will monitor feasibility study progress, updated Mineral Resources Estimates, and potential project financing or strategic partnerships that could accelerate development timelines or reduce capital needs for Stage 1 operations.

Favourable Sector and Gold Market Conditions Support Project Economics

Barton’s projects are advancing amid sustained industrial demand for precious metals and constrained global gold supply relative to recent exploration success. The company’s phased Stage 1 development strategy, based on reprocessing historical tailings and near-surface material, aligns with industry trends favoring lower-impact, circular economy approaches. High-grade mineralisation identified at Challenger pit extensions and Tunkillia enhances economic optionality, potentially enabling higher throughput or extended mine life in feasibility models.

The global gold market, characterized by elevated prices and strong investment interest in exploration and development assets, bolsters the investment case for Barton’s near-term production ambitions. Ownership of three 100%-owned projects at various resource and feasibility stages, combined with access to Central Gawler Mill infrastructure, positions Barton to advance toward production faster and with lower capital intensity than typical greenfield projects. Its focus on de-risked, phased development aligned with market conditions and operational pragmatism may attract investors seeking exposure to gold development assets with clear near-term catalysts.

Investor Considerations: Risks and Operational Factors

Despite positive drilling and feasibility progress, investors should consider risks specific to Barton Gold. The Challenger DFS completion and publication by Q1 2027 is critical, with no guarantee it will confirm economic viability of the proposed Stage 1 operation or that Central Gawler Mill recommissioning proceeds as planned. Metallurgical testwork on TSF1 and broader resources must validate processing recoveries and concentrate grades assumed in feasibility models; deviations could affect timelines and capital requirements.

Operational risks include potential delays or incomplete results from the expanded 40,000-metre Tunkillia drilling program, which may impact resource growth expectations. Regulatory and environmental approvals remain ongoing considerations for both Challenger and Tunkillia projects. Commodity price volatility and changes in gold and silver markets could influence project economics. Feasibility studies are in progress, and detailed capital cost estimates or production guidance for Stage 1 have not yet been published, meaning financial assumptions remain subject to revision as studies advance.