Power Minerals Discovers New Exploration Targets at Santa Anna Complex

Power Minerals new exploration targets at the Santa Anna Carbonatite Alkaline Complex have emerged from a comprehensive drone-supported aerial magnetic survey, revealing previously undetected structural features and identifying at least two new high-priority exploration zones. Power Minerals Limited (ASX: PNN) has completed this advanced geophysical programme as part of its accelerated exploration strategy following its recent acquisition of 100% ownership of the entire complex spanning ~2.5km from west to east.

The survey covered 385.49 line-km of magnetic data with 50-metre line spacing and was conducted at an optimal 30-metre sensor height to provide unprecedented detail of the carbonatite system's internal structure. With nearly 90% of the surface area remaining untested by drilling, these new insights are expected to significantly enhance targeting for Power's upcoming 10,000-metre RC drilling campaign.

Survey Reveals Hidden Geological Architecture

The high-resolution geophysical survey has provided Power's technical team with their most detailed view yet of the Santa Anna Carbonatite Alkaline Complex's internal geology. Using state-of-the-art GEM Systems GSMP 35U and 25U Magnetometer technology coupled to a DJI Matrice 350 RTK drone, the survey achieved remarkable precision with readings collected every 0.8 metres along survey lines.

Key technical specifications of the survey include:

• Data sampling frequency: 10 Hz with 8m/second flight speed
• Survey line spacing: 50m (N-S orientation)
• Control line spacing: 500m (W-E orientation)
• Total coverage: 385.49 line-km including control lines
• Sensor altitude: Consistent 30m above ground level

The preliminary magnetic analytic signal amplitude maps have revealed linear features internal to the alkaline complex. Power's geology team believes these could represent late-stage structures that concentrated fluid movement during mineralisation events.

Furthermore, these structural features were previously undetectable using regional geophysical surveys with wider line spacing. The enhanced resolution provides critical insights for understanding the complex's mineralisation controls.

Strategic Positioning for Resource Definition

The survey results will directly inform Power's maiden Mineral Resource Estimate (MRE) targeted for Q1 2026, supporting both exploration targeting and resource modelling activities. The company's technical team will integrate this geophysical data with existing drilling results to create a comprehensive block model of the mineralisation system.

"Given that a significant portion of the complex area remains untested by drilling, with minimal exploration below 100 metres from surface, the introduction of this new geophysical dataset is expected to provide crucial insights for exploration targeting and resource definition drilling," stated Mena Habib, Managing Director.

Santa Anna Drilling Progress Summary:

Understanding Carbonatite Complexes: A Primer for Investors

Carbonatite complexes represent some of the world's most significant sources of rare earth elements (REE) and niobium. These unique geological formations are created through the intrusion of carbonate-rich magmas into existing rock formations, often creating pipe-like structures rich in critical minerals.

Global significance: Most of the world's niobium production comes from carbonatite deposits, with Brazil's Araxá and Catalão complexes dominating global supply. These geological formations typically host large-tonnage resources with favourable metallurgical characteristics.

REE concentration: Carbonatites host some of the highest-grade REE deposits globally, often containing light rare earth elements essential for permanent magnets and electronics manufacturing.

Metallurgical advantages: Carbonatite-hosted mineralisation is often more amenable to conventional processing methods compared to other REE deposit types. Consequently, this reduces processing complexity and capital requirements.

Resource scale: Carbonatite complexes typically contain large-tonnage, long-life resources that can support decades of production once developed.

The Santa Anna Complex sits within Brazil's Goiás Alkaline Province, a region known for late Cretaceous alkaline magmatism linked to mantle plume activity. This geological setting has proven favourable for the formation of economic niobium and REE deposits throughout the region.

Critical Minerals Market Context

The strategic importance of niobium and REE has increased significantly as governments prioritise supply chain security for clean energy technologies. Niobium enhances steel strength and corrosion resistance, making it essential for pipeline construction, automotive applications, and infrastructure development.

In addition, rare earth elements are critical components in permanent magnets used in wind turbines and electric vehicle motors. Brazil currently supplies approximately 85% of global niobium production, primarily from two major carbonatite operations.

This market dominance highlights both the geological favorability of Brazilian carbonatites and the strategic importance of developing additional supply sources. For instance, Power Minerals new exploration targets could contribute to future supply diversification within established mining jurisdictions.

Accelerated Timeline Toward Resource Definition

Power's exploration strategy demonstrates clear momentum toward resource definition, with the new geophysical targets complementing existing high-grade intersections from recent drilling. The company's 29-hole RC programme successfully intersected broad zones of niobium and high-grade REE at both surface and depth levels.

However, these results validate the exploration model and highlight expansion potential beyond the previously tested areas. The integration of geophysical targeting with systematic drilling positions Power to efficiently evaluate the complex's resource potential.

Upcoming Milestones:

The company's technical team will utilise the new magnetic data to optimise drill hole placement and ensure comprehensive testing of high-priority targets. Furthermore, this systematic approach minimises exploration risk whilst maximising resource definition potential.

Technical Advancement in Exploration Methodology

The drone-supported survey represents a significant advancement over previous regional geophysical work conducted with 500-metre line spacing and 100-metre flight height. Power's high-resolution approach with 50-metre line spacing and 30-metre sensor height has revealed structural details previously undetectable in the Santa Anna Complex.

Key Technical Advantages:

• Enhanced Resolution: 10x improvement in line spacing compared to regional surveys
• Structural Definition: Internal linear features identified for first time
• Targeting Precision: New targets positioned near complex margins
• Integration Capability: Data supports resource modelling and drill planning

The preliminary magnetic analytic signal amplitude maps indicate at least two new high-priority exploration targets positioned near the complex margins. These areas were not adequately defined in previous regional datasets and represent significant expansion opportunities.

Consequently, these targets will be incorporated into Power's upcoming drilling programmes at Santa Anna. The enhanced targeting precision increases confidence in the upcoming 10,000-metre RC drilling campaign.

Investment Thesis: Critical Minerals in a Tier-1 Jurisdiction

Power Minerals has strategically positioned itself within Brazil's established mining jurisdiction with 100% ownership of a significant carbonatite complex in an area with proven mineralisation. The Santa Anna Project offers several compelling investment characteristics that merit investor attention.

Resource Potential:

• Large-scale system: 2.5km complex with 90% untested by drilling
• Confirmed mineralisation: High-grade niobium and REE intersected at surface and depth
• Expansion potential: New geophysical targets increase exploration footprint
• Geological analogy: Located within proven Goiás Alkaline Province

Operational Advantages:

• Established infrastructure: Located 6km from Mundo Novo, 335km from Brasília
• Proven jurisdiction: Brazil's established mining regulatory framework
• Technical expertise: Experienced geological team with carbonatite specialisation
• Complete ownership: No joint venture complexities

Market Position:

• Critical mineral exposure: Niobium and REE essential for clean energy transition
• Supply chain significance: Brazil is global leader in niobium production
• Resource development pathway: Clear timeline toward maiden resource estimate
• Strategic timing: Market focus on supply chain diversification

Catalyst Timeline and Value Drivers

The company's systematic approach to resource definition provides multiple potential catalysts over the next six months. December 2025 marks the commencement of the 2,000-metre Phase 1 RC drilling programme, targeting the newly identified geophysical anomalies alongside existing high-grade zones.

The Q1 2026 maiden resource estimate represents the primary value inflection point, as it will provide the first JORC-compliant assessment of the Santa Anna Complex's mineral endowment. This milestone will enable more detailed economic evaluation and support potential development planning.

For instance, the resource estimate will inform feasibility studies and establish the foundation for future development decisions. Power Minerals new exploration targets significantly enhance the potential scope of this upcoming resource assessment.

Why Investors Should Monitor Power Minerals

Power Minerals has assembled the key elements for potential resource success: a large-scale carbonatite system with confirmed high-grade mineralisation, advanced geophysical targeting, and an accelerated drilling programme designed to deliver a maiden resource estimate within six months. The company's 100% ownership of the entire complex provides complete control over development decisions.

The critical minerals sector continues to attract investor attention as governments and industries prioritise supply chain security for clean energy technologies. Power's exposure to both niobium and rare earth elements positions the company within two of the most strategically important mineral sectors globally.

However, investors should consider the inherent risks associated with early-stage exploration activities. Nevertheless, the systematic approach and proven geological setting provide a solid foundation for potential success.

Key Tracking Points:

Power Minerals combines large-scale resource potential with near-term catalysts through its systematic exploration approach at Santa Anna. The new geophysical targets identified through high-resolution surveying expand the exploration footprint beyond previously tested areas.

With major drilling programmes commencing in December 2025 and the maiden resource estimate targeted for Q1 2026, investors should monitor progress toward these significant value inflection points. Furthermore, these milestones represent critical steps in the resource development pathway.

The company's position within Brazil's established mining jurisdiction and exposure to critical minerals essential for clean energy transition provides strategic relevance in current market conditions focused on supply chain security.

Company Details:

• ASX Code: PNN
• Market Focus: Critical minerals exploration and development
• Key Assets: Santa Anna Niobium-REE Project (Brazil), lithium resources (Argentina)
• Contact: admin@powerminerals.com.au | +61 8 8218 5000

Ready to Explore Power Minerals' Critical Minerals Opportunity?

With new high-priority exploration targets identified through advanced geophysical surveying and a major 10,000-metre drilling campaign set to commence in December 2025, Power Minerals is positioned for significant newsflow over the coming months. The company's 100% ownership of the Santa Anna Carbonatite Complex, combined with confirmed high-grade niobium and REE intersections across a largely untested 2.5km system, presents compelling exposure to critical minerals essential for the clean energy transition. To discover more about Power Minerals' systematic approach to resource definition and upcoming value catalysts, including the targeted Q1 2026 maiden resource estimate, visit www.powerminerals.com.au.