Power Minerals Santa Anna Results Reveal Exceptional Niobium-REE Grades

Power Minerals Santa Anna results have demonstrated exceptional potential through the company's latest shallow auger drilling program, with high-grade intersections confirming strong mineralisation continuity. Power Minerals Limited (ASX: PNN) has delivered exceptional final results from its shallow auger drilling program at the Santa Anna Project in Brazil, setting the stage for an ambitious 10,000-metre deep drilling campaign.

The final batch of results from six auger holes has revealed impressive grades including 2.14% TREO (Total Rare Earth Oxides) and 0.83% Nb2O5 (niobium pentoxide), with mineralisation extending from surface to end-of-hole in the majority of intersections, indicating potential for significant depth extensions.

Final Auger Results Deliver Exceptional Grades

Power Minerals has completed its 63-hole shallow auger drilling program with standout results from the final six holes (MN-TM-058 to MN-TM-063). The systematic drilling program tested a large shallow volume to an average depth of 13.2 metres, providing continuous concentrations across 3.4 million cubic metres.

Key TREO (Total Rare Earth Oxide) Results:

Key Niobium (Nb2O5) Results:

The vertical auger drilling was conducted on a nominal orthogonal grid spacing of 80 metres, providing systematic coverage across the target area.

Understanding Carbonatite Complexes: The Geological Foundation

Carbonatite complexes represent rare but economically significant geological formations that host the world's most important rare earth and niobium deposits. These igneous rocks, composed primarily of carbonate minerals, represent less than 1% of all igneous rocks globally yet contain some of the highest-grade critical mineral concentrations known to geology.

Key characteristics of carbonatite complexes:

• Concentrated mineralisation: Natural geological processes concentrate rare earth elements and niobium to economically viable grades
• Global rarity: Only around 527 carbonatite occurrences are documented worldwide
• Economic significance: Major REE and niobium mines globally are predominantly hosted in carbonatite complexes
• Processing advantages: Often easier to process than other deposit types due to their unique mineralogy

The Santa Anna Project sits within the Goiás Alkaline Province, a region characterised by late Cretaceous alkaline magmatism. This geological setting provides ideal conditions for high-grade mineralisation, with the project located at the intersection of established structural controls that facilitate mineral concentration.

Comparing Surface vs. Deep Drilling Results

The shallow auger program results demonstrate remarkable consistency with previous deeper drilling, validating the robust nature of the mineralisation system and providing confidence in depth continuity.

Surface Auger Results (0-15m depth):

• Peak grades up to 2.14% TREO and 0.83% Nb2O5
• Consistent mineralisation from surface to end-of-hole across majority of intersections
• 3.4 million cubic metres of mineralised volume identified systematically

Previous Deep RC Drilling:

• 114m at 3,012ppm TREO from surface (MN-RC-028)
• 87m at 2,124ppm Nb2O5 from 24m depth
• Peak grades of 1.01% Nb2O5 over 3 metres

This correlation between surface and depth results provides strong technical validation for the continuity of mineralisation and supports the potential for significant resource expansion through deeper drilling campaigns.

Managing Director Commentary:

"We are thrilled to share that the final results from our recently completed shallow auger drilling program have once again yielded outstanding outcomes, aligning with our previous findings. These strong results have reinforced our commitment to proceed with the newly initiated 10,000 metre reverse circulation drilling campaign."

– Mena Habib, Managing Director

Major Drilling Campaign Commences

Power Minerals has launched a substantial 10,000-metre deep drilling campaign targeting niobium-rich phases to the east and south-east of the initial drilling efforts. Furthermore, this third-stage program represents a significant step-up in exploration intensity and aims to:

• Significantly extend the Nb and REE mineralised footprint at depth
• Test deeper parts of the alkaline carbonatite complex using shallow auger results and recent geophysics as targeting guides
• Expand resource potential beyond the current 3.4 million cubic metre volume

The campaign utilises reverse circulation drilling techniques to achieve greater depths than the surface auger program, with systematic targeting based on the comprehensive data set developed through previous drilling phases.

Maiden Resource Estimation Underway

Power Minerals has engaged SRK Consulting to develop a maiden Mineral Resource Estimation (MRE) for Santa Anna. The structured approach includes:

Initial Phase:

• Calculate benchmark MRE from previous and historical drilling data
• Establish starting Mineral Resource while creating optimised targeting model
• Ensure all drilling and sampling adhere to highest industry standards
• Complete high-level review and validation of extensive current drilling data

Follow-up Phase:

• Incorporate auger results following completion of substantial third-stage drilling program
• Provide foundation for future resource upgrades based on expanded data set

This phased methodology ensures systematic resource development while maintaining rigorous technical standards and provides regular updates on resource progression.

Investment Thesis: Critical Minerals in Strategic Location

Strategic Positioning:

Power Minerals has established a compelling position in the critical minerals sector through systematic exploration of a high-grade niobium-REE system in Brazil. The combination of stable jurisdiction, established infrastructure, and dual commodity exposure provides multiple value drivers.

Technical Advantages:

• Surface mineralisation: Reduces potential mining complexity and development costs
• Consistent high grades: Demonstrated across systematic drilling programs
• Proven continuity: Strong correlation between surface and deeper drilling results validates geological model
• Large mineralised footprint: 3.4 million cubic metres identified with expansion potential through deep drilling

Market Context:

• Niobium supply concentration: Brazil dominates global production at approximately 85%, providing established processing knowledge and infrastructure
• REE demand growth: Increasing significantly due to permanent magnet requirements for wind turbines and electric vehicles
• Supply chain diversification: Non-Chinese REE sources gaining strategic value in global supply chains

Development Pathway:

The company has demonstrated a methodical approach to project development through systematic drilling campaigns, professional resource estimation engagement, and strategic targeting of deeper mineralisation zones. This technical foundation supports potential advancement through feasibility studies towards development decisions.

Critical Minerals Market Dynamics

Both niobium and rare earth elements occupy strategic positions in the global transition to clean energy technologies. Niobium's unique properties as a steel alloy additive make it essential for high-strength applications, whilst rare earth elements are fundamental to permanent magnet production for electric vehicles and wind turbines.

Supply considerations:

• Limited global production sources for both commodities
• Concentration of supply chains in specific geographic regions
• Growing demand from renewable energy and electrification sectors
• Strategic importance for national resource security policies

The Santa Anna Project's location in Brazil provides access to established niobium processing expertise whilst offering potential diversification of rare earth supply chains outside traditional dominant regions.

Why Investors Should Monitor Power Minerals

The Power Minerals Santa Anna results have systematically demonstrated the project's potential through consistent high-grade results across multiple drilling programs and professional project development approaches. The company's methodical progression from initial exploration through resource estimation provides a clear development pathway.

Key tracking points for investors:

1. Resource estimation timing: Initial MRE expected following SRK's review of existing drilling data
2. Deep drilling results: 10,000m campaign results expected to significantly expand known mineralisation envelope
3. Processing studies: Future metallurgical work will determine optimal processing pathways for dual commodity system
4. Market developments: Critical minerals sector dynamics continue evolving favourably for secure supply sources

The combination of high-grade surface mineralisation, demonstrated depth extension potential, and professional development methodology positions Santa Anna as a noteworthy critical minerals development opportunity in a stable mining jurisdiction.

In addition, the Power Minerals Santa Anna results provide compelling evidence of the project's ability to deliver consistent high-grade mineralisation across a substantial area. With a major 10,000m drilling campaign underway and maiden resource estimation in progress, the company is establishing its position in the critical minerals sector through systematic technical development.

Key Investment Consideration:
Power Minerals has validated the Santa Anna Project's potential through consistent high-grade drilling results across a large mineralised system. With a major 10,000m drilling campaign underway and maiden resource estimation in progress, the company is establishing its position in the critical minerals sector through systematic technical development.

Want to Learn More About Power Minerals' Santa Anna Project Development?

Power Minerals is advancing its Santa Anna Project through a systematic exploration approach that has consistently delivered high-grade results across multiple drilling campaigns. With a major 10,000-metre drilling programme underway and maiden resource estimation in progress, the company is positioning itself as a significant player in Brazil's critical minerals sector. To explore Power Minerals' complete project portfolio, development strategy, and upcoming milestones that could impact the Santa Anna Project's advancement, visit www.powerminerals.com.au for comprehensive company information and investor updates.