High-Grade Gold Discovery Validates Lachlan Star Ltd Geological Model

Outstanding Assay Results Validate High-Grade Gold Discovery

Lachlan Star Limited's (ASX: LSA) latest findings at the New Waverley Gold Project continue to validate the company's geological model, with rock chip sampling delivering exceptional results including visible gold and grades up to 56g/t Au from cross-cutting quartz reef structures. This high-grade gold discovery Lachlan Star Ltd has identified represents a significant development in Western Australia's Eastern Goldfields region.

The announcement reveals significant progress at the recently acquired project, located just 16km northeast of Norseman in Western Australia's world-class Eastern Goldfields region. With diamond drilling set to commence this month, Lachlan Star is positioning itself to systematically test what appears to be an underexplored, high-grade gold system.

Furthermore, the relationship between cross-cutting quartz reefs and high-grade gold mineralisation supports the company's interpretation that the 400-metre mineralised trend represents an underexplored Norseman-style, high-grade quartz reef-hosted gold system.

Exceptional Rock Chip Results Confirm Geological Model

Recent rock chip sampling from the Trial Pit has delivered multiple high-grade gold results that strengthen confidence in the geological interpretation. These results demonstrate the potential of this high-grade gold discovery Lachlan Star Ltd has been developing.

Top-Tier Results from Structural Intersections:

• 56g/t Au (#WTP056) – intersection of N-S and W-E reefs
• 29.2g/t Au (#WTP024) – N-S footwall reef
• 20.9g/t Au (#WTP027) – N-S footwall reef
• 14.15g/t Au (#WTP031) – W-E crosslink reef
• 9.8g/t Au (#WTP032) – W-E crosslink reef

Moreover, the company successfully panned fine gold from material collected at the intersection of north-south and west-east quartz reef structures. Visible free gold was also observed in hand specimens from these veins, providing visual confirmation of the system's potential.

CEO Andrew Tyrrell commented: "These results continue to strengthen our confidence in the geological model at New Waverley, highlighted by the high-grade assays and visible gold within the exposed quartz reef system at Trial Pit."

What Makes This Gold Discovery Particularly Significant?

Understanding Quartz Reef Gold Systems

A quartz reef gold system represents one of the most valuable forms of gold mineralisation. These systems form when gold-bearing fluids are channelled through fractures and faults in rock, depositing gold within quartz veins or "reefs."

Key Advantages for Investors:

• Quartz reef systems often contain high-grade gold concentrations
• They typically have predictable geological controls that aid exploration
• Historical precedent exists in the district with North Royal mine (1.8Moz Au past production)
• The Norseman region hosts Pantoro Gold's 4.6Moz Au Mineral Resource

In addition, the cross-cutting nature of New Waverley's system suggests multiple generations of mineralisation, potentially creating grade enhancement at structural intersections. This geological setting is analogous to other successful operations in the region.

Critical Geological Observations

Key Structural Features:

• Cross-cutting structural intersections enhance gold grades
• West-east cross-fault disruptions appear to concentrate mineralisation
• Potential for repeat high-grade intersections along the structural corridor
• 800-metre strike potential indicated by geological mapping

The location corresponds directly with the cluster of high-grade rock chip samples, reinforcing the geological model's validity.

Historical Dumps Reveal Substantial Value Potential

A systematic sampling programme across historical dumps returned numerous high-grade results, indicating selective mining of high-grade quartz reef material in the past. This represents additional value beyond the primary high-grade gold discovery Lachlan Star Ltd is advancing.

Outstanding Results Include:

• 58.6g/t Au from Waverley Pit 'paddock' dumps
• 46.9g/t Au from Trial Pit Waste Dump
• 33.6g/t Au, 27.8g/t Au, 26.8g/t Au from various dump locations

Consequently, the company plans to assess the economic significance of this material through metallurgical test work and further sampling, representing a potential near-term value opportunity whilst the main discovery advances.

How Will Drilling Advance This Discovery?

Systematic Testing Programme Commences

Diamond drilling is expected to commence this month, marking a critical phase in systematically testing the New Waverley structural corridor. Historical drilling was completed on west-east traverses and has not systematically tested for structural intersections within the broader 400-800m corridor.

Priority Drilling Targets:

• Structural intersection positions showing highest surface grades
• Areas outside historical mined extents
• Locations with significant historical drill intersections
• Extensions of known mineralised zones

Historical Drilling Highlights Support Potential

Previous drilling returned exceptional results that validate the system's depth potential:

• 4.1m @ 12.53g/t Au from 59.7m (including 0.65m @ 77.3g/t Au)
• 4m @ 13.83g/t Au from 16m (including 1m @ 53g/t Au)
• 2m @ 10.34g/t Au from 24m

However, these results were not followed up systematically, creating the exploration opportunity that this high-grade gold discovery Lachlan Star Ltd now represents.

Why Location Matters for Success

Strategic Position in Proven Gold District

New Waverley's position within the world-class Norseman mining district provides significant strategic advantages that reduce exploration risk whilst maximising discovery potential.

Project Highlights:

• ~40km² contiguous tenement package
• 16km northeast of Norseman township
• Adjacent to Pantoro Gold's Norseman Gold Project (4.6Moz Au MRE)
• Two granted Mining Leases containing historical workings
• Analogous to other successful Norseman-style systems

The project's location within established infrastructure and proven geological terrain reduces exploration risk while providing access to existing mining services and transport networks.

Furthermore, the district has a long history of successful gold production, with North Royal mine producing 1.8Moz Au and Harlequin mine producing 800koz Au historically.

Investment Case: Why This Discovery Stands Out

Compelling Value Proposition

Multiple Value Drivers Align:

1. Proven High-Grade System: Rock chip results up to 56g/t Au with visible gold confirm exceptional grade potential
2. Systematic Exploration Gap: Historical drilling hasn't tested structural intersections systematically
3. Significant Scale Potential: 800-metre strike extent indicated by geological mapping
4. District-Scale Precedent: Located within proven gold district with major historical production
5. Near-Term Catalysts: Diamond drilling commencing this month with results expected within weeks

Historical Context Provides Confidence

The style of mineralisation observed is considered analogous to other successful Norseman-style quartz reef-hosted gold systems. This geological similarity to proven deposits reduces technical risk whilst maintaining exceptional upside potential.

In addition, the systematic approach to testing structural intersections that historical drilling missed could transform understanding of the project's true potential.

What Should Investors Monitor Next?

Key Tracking Points for Development

Critical Upcoming Milestones:

• Diamond drilling results expected within 8-12 weeks of commencement
• Follow-up RC drilling programme planned for systematic testing
• Metallurgical test work on historical dumps for near-term value
• Structural mapping scheduled to refine geological model

With the geological model gaining strength through each phase of work, New Waverley represents the type of underexplored, high-grade system that can deliver significant value to shareholders.

Why This Discovery Could Transform the Company

The upcoming drilling campaign will be critical in determining whether the surface expressions translate to depth and continuity. The combination of exceptional high-grade results, visible gold discoveries, and systematic drilling approach positions the company strategically within the gold exploration sector.

Moreover, the near-term potential from historical dumps provides additional value whilst the main discovery advances through systematic testing.

Key Takeaway: This high-grade gold discovery Lachlan Star Ltd has assembled represents compelling evidence for a significant gold system at New Waverley. With systematic drilling about to commence on an underexplored structural corridor showing exceptional surface grades, investors should monitor upcoming results closely as the company works to develop what could be a substantial discovery in one of Australia's premier gold districts.

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