Litchfield Minerals Drill Program Expands Oonagalabi Copper-Zinc Exploration

Litchfield Minerals Limited (ASX: LMS) has commenced an ambitious Phase 3 exploration programme at its Oonagalabi Project in the Northern Territory, launching seven strategic reverse circulation (RC) drill holes across multiple high-priority target zones. The Litchfield Minerals drill program, which began on 26 March 2026, represents a methodical approach to expanding what appears to be a substantial mineral system showing encouraging signs of copper-zinc mineralisation.

The current programme follows completion of three diamond drill holes across key target areas, including Bomb-Diggity (OGDD001), the Main Zone (OGDD002), and a magnetic feature where gold was previously intersected in hole OGRC002. All samples from these completed holes have been dispatched to laboratories for assay, with results pending.

Strategic Multi-Zone Targeting Approach

The current RC drilling programme demonstrates Litchfield's methodical approach to exploring what appears to be a complex mineral system. The seven planned drill holes are strategically distributed across three distinct zones, each targeting specific geophysical anomalies identified through recent exploration work.

VT1 Zone (2 holes)

• OGRC23P: Testing the 3000S Ground electromagnetic (EM) plate
• OGRC24P: Targeting a large 200S Ground EM plate

Main Zone (3 holes)

• OGRC026P: Positioned 400 metres north of the most northern Main Zone hole drilled to date
• OGRC027P: Targeting the eastern fold closure of the Main Zone
• OGRC025P: Testing a potential eastern fold repetition

VT2 Zone (2 holes)

• OGRC021P: Testing the northern edge of the conductor plate
• OGRC022P: Targeting the largest VT2 induced polarisation (IP) chargeability anomaly

This systematic approach suggests Litchfield is building a comprehensive understanding of the Oonagalabi mineral system's geometry and extent. Furthermore, each hole is designed to test specific geophysical targets identified through recent exploration work.

Understanding Electromagnetic Surveys in Mineral Exploration

For investors new to mineral exploration, electromagnetic (EM) surveys represent a crucial geophysical technique used to detect subsurface conductors that often indicate mineralisation. When electrical currents are passed through the ground, different rock types respond differently, with sulphide minerals (which often contain copper, zinc, and other valuable metals) typically showing high conductivity.

Why this matters for investors: EM plates and conductor targets represent areas where the geology suggests the presence of mineralised zones. The fact that Litchfield is systematically drilling these targets indicates a data-driven approach to exploration, increasing the likelihood of making significant discoveries.

IP (Induced Polarisation) chargeability anomalies measure how long rocks hold an electrical charge, with high chargeability often indicating sulphide mineralisation. This is precisely what the Litchfield Minerals drill program is targeting at Oonagalabi.

Technical Context:
Electromagnetic surveys work by detecting electrical conductivity variations in subsurface rocks. Sulphide minerals, which commonly host copper and zinc, conduct electricity much better than typical rock formations. When EM surveys identify conductor plates, they indicate potential zones of sulphide mineralisation worthy of drill testing.

Building on Previous Success Indicators

The current drilling programme builds on encouraging results from previous work at Oonagalabi. The company has previously reported what it describes as "thick copper-zinc mineralisation" and gold intersections in earlier drilling, suggesting the presence of a potentially significant polymetallic system.

The systematic approach of completing diamond drilling for detailed geological understanding, followed by RC drilling to test extension and continuity, demonstrates mature exploration methodology. In addition, this progression from initial discovery to systematic expansion represents a hallmark of successful exploration companies.

The multi-zone nature of the targets, combined with the company's systematic drilling approach, suggests Litchfield is methodically building toward what could potentially develop into a significant mineral discovery.

Strategic Investment Positioning in Critical Minerals

Litchfield Minerals positions itself as what the company describes as a "critical mineral explorer" focused on base metals and uranium in the Northern Territory. This jurisdiction is recognised for its mineral wealth and mining-friendly regulatory environment. The company's focus on copper and zinc aligns with global trends toward electrification and renewable energy infrastructure, where these metals play essential roles.

The Northern Territory location provides several operational advantages:

• Established mining jurisdiction with supportive regulatory framework
• Proximity to existing infrastructure and mining expertise
• Geological potential in a region known for significant mineral discoveries

The systematic exploration approach at Oonagalabi indicates the company is building toward what management believes could be a potentially substantial discovery. However, the multi-zone nature of the targets, combined with encouraging early results, suggests this could develop into a significant mineral system.

Near-Term Catalysts and Expected Timeline

Investors should monitor several upcoming catalysts that could materially impact the company's development:

Immediate Term (4-8 weeks):

• Assay results from completed diamond holes OGDD001, OGDD002, and OGDD003
• Progress updates on the current 7-hole RC drilling programme
• Initial geological observations from ongoing RC drilling

Medium Term (2-3 months):

• Complete results from Phase 3 RC drilling programme
• Potential announcement of Phase 4 drilling if results warrant expansion
• Updated resource interpretation incorporating new drilling data

The company's commitment to regular updates ensures investors will have timely access to results as they become available. For instance, given the systematic nature of the current programme, positive results could potentially lead to accelerated drilling and resource estimation work.

Consequently, the Litchfield Minerals drill program represents a critical phase in the company's exploration strategy.

Investment Thesis for Litchfield Minerals

Litchfield Minerals represents a compelling opportunity in the critical minerals space for several strategic reasons:

What makes this exploration program particularly attractive?

Strategic Commodity Focus

The company's concentration on copper, zinc, and uranium positions it well for the ongoing energy transition. These metals are experiencing sustained demand growth driven by renewable energy infrastructure and battery technology development.

Systematic Exploration Methodology

The methodical progression from geophysical targeting through diamond drilling to RC expansion demonstrates professional exploration management. Furthermore, this approach focuses on maximising discovery potential whilst managing shareholder capital efficiently.

Multi-Zone Discovery Potential

The Oonagalabi project shows characteristics of what could potentially be a substantial mineral system with multiple zones of interest. This suggests the possibility of a significant discovery rather than isolated mineralised intersections.

Jurisdictional Advantage

The Northern Territory provides an excellent exploration environment with supportive regulation. In addition, it offers established mining infrastructure and proven geological potential.

Management Vision:
According to the company, Litchfield aims "to be a pioneering copper exploration company committed to delivering cost-effective, innovative and sustainable exploration solutions" whilst working to "unlock the full potential of copper and other mineral resources while minimising environmental impact."

The current drilling programme represents a pivotal moment for Litchfield, with the potential to significantly advance understanding of the Oonagalabi mineral system. It also provides the data necessary for future resource development decisions.

Key factors to monitor:

• Assay results from completed diamond drilling
• Geological continuity demonstrated through RC programme
• Potential for resource estimation following successful drilling
• Management's strategic direction based on exploration outcomes

The professional, data-driven exploration approach and multiple near-term catalysts position LMS as a noteworthy development story in the critical minerals sector. Consequently, the coming months will be crucial for investors monitoring the Litchfield Minerals drill program outcomes.

Could Litchfield's Multi-Zone Strategy Unlock Your Next Investment Opportunity?

With seven strategic drill holes underway across three high-priority zones and assay results pending from completed diamond drilling, Litchfield Minerals is systematically building toward what could potentially be a significant copper-zinc discovery. The company's methodical exploration approach at Oonagalabi, combined with its focus on critical minerals essential for the energy transition, positions it as a compelling opportunity in the Northern Territory's mining-friendly jurisdiction. To explore how Litchfield's systematic exploration strategy and upcoming catalysts could align with your investment objectives, visit www.litchfieldminerals.com.au for comprehensive company information and project details.