Brightstar Resources Maiden Diamond Drilling Results Deliver Exceptional Gold Grades

Brightstar Resources Limited (ASX: BTR) has released exceptional Brightstar Resources maiden diamond drilling results from its debut diamond core drilling program at the 2.4Moz @ 1.5g/t Au Sandstone Hub. The outstanding intercepts include 4.2m @ 26.7g/t Au from the Musketeer deposit, marking significant progress toward the company's June 2026 Mineral Resource Estimate upgrade and ongoing Pre-Feasibility Study.

High-Grade Intercepts Define Robust Mineralisation

The diamond drilling program, completed in late 2025, has delivered consistently strong gold intersections across the Indomitable Camp. Furthermore, these results reinforce the quality of mineralisation at this untapped district:

Musketeer Deposit – Exceptional High-Grade Zones

• INDD25001: 4.2m @ 26.7g/t Au from 113.9m, including 0.75m @ 65.4g/t Au
• INDD25002: 5.9m @ 5.41g/t Au from 48.0m, including 1.3m @ 19.7g/t Au
• INDD25002: 2.0m @ 5.34g/t Au from 58.0m
• INDD25003: 1.1m @ 10.4g/t Au from 134.9m

Indomitable Deposit – Broad Mineralised Zones

• INDD25005: 4.5m @ 3.47g/t Au from 33.0m
• INDD25005: 6.2m @ 4.05g/t Au from 44.0m
• INDD25005: 6.5m @ 11.7g/t Au from 69.5m

Vanguard Deposit – Continued Strong Results

• VNRC25161: 15m @ 3.23g/t Au from 36m, including 2m @ 11.2g/t Au
• VNRC25118: 3m @ 4.01g/t Au from 102m

Management Commentary:
"It is pleasing to see continued strongly positive drilling results returned from Sandstone exploration completed in late 2025. Importantly, the diamond drilling across all the deposits is providing all the necessary technical information to enable robust Mineral Resource estimation upgrades and ensuring appropriate parameters for the pre-feasibility study underway."

– Alex Rovira, Managing Director

Strategic Diamond Drilling Program Advances Multiple Objectives

The 1,400m diamond drilling program at the Indomitable Camp serves multiple critical functions for Brightstar's development timeline. In addition, these Brightstar Resources maiden diamond drilling results demonstrate the company's systematic approach to resource development:

Key Technical Outcomes

• Infill drilling to upgrade resource confidence for PFS work streams
• Geotechnical data collection for mine planning parameters
• Metallurgical sample provision for processing studies
• Structural understanding of geological controls

Program Scope & Status

• 31 additional holes awaiting assay results from 2025 drilling
• Four diamond holes pending results from Vanguard deposit
• 2026 drilling campaign underway with two RC and two DD rigs
• Extensional drilling targeting resource growth now commencing

Understanding Banded Iron Formation (BIF) Mineralisation

What are Banded Iron Formations?

Banded Iron Formations are sedimentary rock sequences consisting of alternating layers of iron-rich minerals and silica. At Sandstone, these BIF units host significant gold mineralisation, particularly at the Musketeer deposit where they occur at the contact between hangingwall basalt and footwall ultramafic rocks.

Why BIF Matters to Investors

BIF-hosted gold deposits often exhibit excellent geological continuity and predictable ore bodies, making them attractive for mining operations. The presence of "zones of altered BIF units with felsic porphyry intrusions" and associated "significant pyrite and quartz veining" at Musketeer indicates classic gold mineralisation styles.

However, these typically respond well to conventional processing methods, which could be advantageous for future development scenarios.

2026 Catalyst Timeline & Strategic Milestones

Brightstar has established a clear pathway to value creation with multiple catalysts approaching. Consequently, the Brightstar Resources maiden diamond drilling results provide strong momentum entering this crucial development phase:

Near-Term Catalysts (H1 2026)

• June 2026: Sandstone Mineral Resource Estimate upgrade
• Ongoing: Pre-Feasibility Study completion
• Q2 2026: Additional assay results from 31 pending holes

Medium-Term Development (2026-2027)

• Completion of infill drilling for PFS parameters
• Permitting activities advancement
• Final Investment Decision preparation
• Target: Gold production commencement June CY2027 (Goldfields Hub)

Resource Growth Potential

With ~1,800km² of prospective tenure and demonstrated 1.6Moz of Mineral Resources in the top 150m, Brightstar's exploration upside remains substantial. The company's "robust exploration budget targeting material Mineral Resource growth" positions it to unlock additional value across the underexplored Sandstone district.

Compelling Investment Thesis Strengthened

The latest drilling results reinforce multiple investment advantages that position Brightstar as a compelling gold development story. For instance, these Brightstar Resources maiden diamond drilling results validate the geological understanding underpinning the company's resource estimates:

Operational Advantages

• Never historically mined deposits provide lower strip ratios
• Undepleted oxide mineralisation enhances early production potential
• Granted mining leases ready for development
• Proven geological team with demonstrated discovery success

Financial Positioning

• Fully funded through development and feasibility studies
• Strong balance sheet supporting aggressive exploration
• 4.0Moz total Mineral Resources across Goldfields and Sandstone hubs
• Tier-1 Western Australian jurisdiction near key infrastructure

Production Pipeline

Why Investors Should Follow Brightstar Resources

Brightstar Resources has positioned itself as a compelling near-term gold producer with exceptional resource growth potential. The company's dual-hub strategy provides both near-term production visibility through the advanced Goldfields project and significant exploration upside through the expanding Sandstone district.

The latest diamond drilling results validate the geological understanding driving resource estimation while providing critical technical data for development studies. Furthermore, with 31 additional holes awaiting results and an aggressive 2026 drilling campaign already underway, investors can expect continued newsflow throughout 2026.

However, the true significance of these Brightstar Resources maiden diamond drilling results lies in their validation of the geological model. This provides increased confidence for upcoming resource estimation upgrades and development planning.

Key Differentiation Factors

• Proven management team with development and operational experience
• Strategic land position across underexplored greenstone belts
• Infrastructure advantages with sealed highway access and existing facilities
• Fully funded development pathway eliminating dilution concerns

Investment Tracking Summary
Brightstar Resources represents a unique opportunity to gain exposure to a quality gold development story with 4.0Moz of resources, near-term production capability, and substantial exploration upside in Tier-1 jurisdiction Western Australia. With upcoming resource upgrades, PFS completion, and continued drilling success, the company offers multiple catalysts for value creation through 2026 and beyond.

Is Brightstar Resources Positioned for Exceptional Growth in 2026?

These exceptional drilling results from Brightstar Resources' maiden diamond programme demonstrate the robust high-grade potential across the 2.4Moz Sandstone Hub. With 31 additional holes awaiting assays, an aggressive 2026 drilling campaign already underway, and multiple catalysts approaching including the June 2026 resource upgrade and ongoing Pre-Feasibility Study, BTR presents a compelling opportunity for investors seeking exposure to a quality gold development story. The company's strategic dual-hub approach combines near-term production visibility with substantial exploration upside across 4.0Moz of total resources in Tier-1 Western Australian jurisdiction. Discover more about Brightstar Resources' development timeline and investment opportunity.