Marmota Ltd Gold Discovery Programme Targets 2-Kilometre Strike Extension

Marmota Limited has launched its most ambitious drilling programme yet at the Greenewood gold discovery, targeting a potential 2-kilometre strike extension that could transform this exceptional find into a massive gold system. The Marmota Ltd gold discovery represents one of the most significant exploration opportunities in the Gawler Craton, with the company's 220-hole, 20,000-metre reverse circulation drilling programme marking the first serious exploration effort at the southern Mainwood zone since 2018.

Fresh from delivering some of the best gold results seen in the Gawler Craton since the Challenger deposit discovery in 1995, Marmota is positioned to potentially double the footprint of what's already shaping up as a world-class discovery. With drilling rigs mobilising this week and fuel supplies already on-site, the next chapter in one of Australia's most exciting gold stories is about to unfold.

The Greenewood Game-Changer: Why This Discovery Matters

What makes Greenewood extraordinary isn't just the exceptional grades—it's the combination of high-grade gold close to surface with excellent strike continuity. Unlike many gold discoveries that show promise in isolated pockets, Greenewood has demonstrated consistent mineralisation along strike, creating the foundation for what could become a substantial mining operation.

The discovery has already rewritten the exploration playbook for the Gawler Craton. Traditional regional calcrete sampling—the technique that led to the Challenger Mine discovery—completely missed Greenewood because it lacks surface calcrete expression. This revelation suggests the region may harbour numerous undiscovered gold deposits invisible to conventional exploration methods.

Key Greenewood Highlights:

• High-grade bonanza results from maiden drilling programme

• Exceptional mineralisation close to surface

• Excellent continuity along strike

• Thick, high-grade intersections

• Located 35km northwest of Aurora Tank and 30km northeast of Challenger Mine

Understanding the Mainwood Opportunity: A Geological Perspective

What is Mainwood?

Mainwood represents the southern extension of the Greenewood gold system. Think of it as the unexplored portion of what could be a much larger discovery. While Greenewood has received focused drilling attention, Mainwood has been largely ignored, with only 3,700 metres of historical drilling across 53 shallow holes averaging just 70 metres deep.

What is Reverse Circulation Drilling?

RC drilling is a cost-effective exploration method that uses compressed air to bring rock chips to the surface through a dual-wall drill pipe system. This technique provides rapid, representative samples for geological analysis whilst maintaining sample quality and reducing contamination risks compared to other drilling methods.

Why This Matters to Investors

The limited historical work at Mainwood means Marmota is essentially getting a fresh opportunity at what could be the larger portion of the gold system. The company's systematic approach—applying the same successful methodology that revealed Greenewood's potential—positions this as a high-impact catalyst with significant upside potential.

Furthermore, the Marmota Ltd gold discovery extends beyond just Greenewood, encompassing a broader system that could fundamentally transform the company's asset base.

Chairman Dr Colin Rose Commentary:

"We are delighted to get this programme underway. This programme serves two primary roles: (1) to continue the growth of the main Greenewood zone which has been yielding spectacular results and remains open in all directions; (2) to vigorously attack the southern zone (Mainwood) with our maiden drilling programme there."

Strategic Drilling Programme: Scope and Significance

The programme's dual focus maximises value creation potential. While 70% of holes target the virgin Mainwood zone, the remaining 30% will infill gaps in Greenewood required for resource estimation. This balanced approach ensures both discovery upside and resource development progress.

In addition, this systematic exploration approach has the potential to significantly expand the scope of the Marmota Ltd gold discovery, potentially establishing it as one of the region's premier gold systems.

Timeline and Execution Excellence

Marmota's execution capabilities are on display with this programme launch. The company has demonstrated impressive operational efficiency with essential diesel fuel supplies delivered over the weekend and teams immediately dispatched to site for pad, track, and sump preparation.

Immediate Catalysts:

1. This week: Drilling commencement at Mainwood

2. Short-term: Initial results from maiden Mainwood drilling

3. Medium-term: Resource estimation advancement for Greenewood

4. Ongoing: Potential 2km strike extension confirmation

The proximity to existing infrastructure and the company's established local operations ensure minimal delays and cost overruns. With fuel supplies delivered and teams already mobilised, this programme exemplifies systematic, well-funded exploration that creates substantial shareholder value.

The Gawler Gold Belt: Strategic Asset Portfolio

Marmota's position within the "Arc of Gold" cannot be overstated. The company controls virtually all unmined gold deposits along this proven gold trend, creating unprecedented consolidation benefits:

This strategic positioning creates obvious economies of scope and scale that become increasingly valuable as individual deposits advance toward development.

Consequently, the broader portfolio provides multiple pathways for value creation beyond the core Marmota Ltd gold discovery at Greenewood/Mainwood.

Understanding Gold Exploration in the Gawler Craton

The Calcrete Sampling Revolution

Calcrete sampling involves testing calcium carbonate-cemented soil layers that form near the surface in arid climates. Gold particles transported by groundwater become trapped in these layers, creating detectable anomalies above buried deposits. This technique led to the discovery of Challenger Mine in 1995 and several deposits in the Arc of Gold.

Greenewood's Unique Discovery Profile

Greenewood's lack of surface calcrete expression makes it particularly significant. The deposit demonstrates that high-grade gold mineralisation can exist without traditional surface indicators, suggesting the potential for numerous similar discoveries throughout the region using alternative exploration methods.

Why This Discovery Method Matters

The identification of Greenewood through methods other than calcrete sampling represents an important milestone in Gawler Gold discovery history. It identifies significant potential for further gold discoveries within the project area where traditional regional-scale calcrete sampling would miss targets.

Investment Thesis: Multiple Value Drivers Converging

Near-Term Catalysts

• Maiden Mainwood drilling results (next 2-3 months)

• Potential massive strike extension confirmation

• Resource estimation progress at Greenewood

• Ongoing scoping study advancement

Strategic Advantages

• Control of entire Arc of Gold deposit cluster

• Proven high-grade, near-surface mineralisation

• Excellent metallurgical characteristics at Aurora Tank

• Low-cost, low-capex heap leach potential

Financial Position

With essential drilling supplies secured and teams mobilised, Marmota demonstrates the financial strength to execute ambitious programmes—a marked contrast to many exploration companies struggling with funding constraints.

Why Investors Should Track Marmota Closely

Marmota represents a rare combination in the exploration space: exceptional discovery success backed by systematic execution capability. The Greenewood discovery has already delivered some of the best gold results in the region's modern history, and the company is now positioned to potentially double that success with the Mainwood extension.

Key Tracking Factors:

The company's 90% ownership of the Greenewood/Mainwood system through the Golden Moon JV, combined with 100% ownership of Aurora Tank and other Arc of Gold deposits, creates a compelling consolidation play in a proven gold district.

The Golden Moon Joint Venture Structure

Marmota holds a 90% interest in the Greenewood/Mainwood project through its 100% owned subsidiary Half Moon Pty Ltd as part of the Golden Moon JV. Ministerial Consent was granted in June 2025, clearing regulatory pathways for the current drilling programme.

This ownership structure provides Marmota with operational control whilst maintaining a dominant economic interest in what could become a significant gold discovery. The remaining 10% interest held by joint venture partners doesn't materially dilute Marmota's exposure to exploration upside.

Investment Outlook and Key Considerations

Marmota has positioned itself at the centre of what could become the Gawler Craton's next major gold camp. With world-class discovery success, strategic asset control, and the financial capability to execute ambitious drilling programmes, the company offers investors exposure to one of Australia's most promising gold development stories.

As drilling commences this week, investors should prepare for a steady flow of results that could fundamentally redefine the scale and scope of this exceptional discovery. The potential for a 2-kilometre mineralised system in a region that produced over 1 million ounces at Challenger makes Marmota a compelling prospect for anyone seeking exposure to Australian gold discovery upside.

The maiden scoping study for Marmota's Gawler Gold project, which commenced recently, provides an additional catalyst as the company advances multiple deposits simultaneously toward potential development scenarios. However, the immediate focus remains on expanding the Marmota Ltd gold discovery through the comprehensive Mainwood drilling programme, which could transform the entire project's scale and economic potential.

Want to Learn More About Marmota's 20,000-Metre Gold Drilling Programme?

With drilling rigs already mobilised and the potential for a 2-kilometre strike extension that could transform Greenewood into a massive gold system, Marmota Limited is positioned at the centre of one of Australia's most promising gold discovery stories. This 220-hole programme targeting the virgin Mainwood zone represents a rare opportunity to get ahead of what could become the Gawler Craton's next major gold camp. To discover more about Marmota's strategic position in the Arc of Gold and stay updated on drilling results from this ambitious exploration programme, visit marmota.com.au.