Power Minerals Accelerates Rincon Lithium Project Expansion with Advanced Geophysics

BY WILLIAM HADRIAN ON FEBRUARY 12, 2026

Power Minerals Ltd

  • ASX Code: PNN
  • Market Cap: $28,875,575
  • Shares On Issue (SOI): 275,005,473
  • This is a special feature article produced for our partner.

    Field Operations Accelerate with Advanced Technology Deployment

    The Power Minerals Rincon Lithium Project Expansion enters a critical phase as the company's technical team conducts on-site testing of Tromino units. These sophisticated instruments utilise Horizontal-to-Vertical Spectral Ratio (HVSR) technology, which analyses natural ground vibrations to map subsurface geology without the environmental impact of traditional drilling methods.

    Key Operational Parameters:

    • Grid spacing: 400-metre orthogonal pattern
    • Data acquisition time: 40 minutes per measurement point (double the standard interval)
    • Extended duration rationale: Accounts for very deep brine-hosted sediments
    • Stratigraphic control: Integration with existing PNN drillhole data

    The systematic approach addresses a critical knowledge gap in Power's current resource understanding. Furthermore, the measurement of existing mineral resources is constrained by large spacing between drillholes, with gaps of up to 5.8 kilometres between key intersections PM23-VI-02 and PM23-VI-03.

    Managing Director Insight:

    "By integrating passive seismic surveys with VES surveys, we are essentially illuminating what lies beneath the surface. This combined approach enables us to effectively map-out the physical structure of the basin while pinpointing the most promising brine-rich zones."Mena Habib, Managing Director

    Understanding HVSR Technology: A Game-Changer for Lithium Exploration

    What is HVSR (Horizontal-to-Vertical Spectral Ratio)?

    HVSR is a non-invasive geophysical technique that measures natural ambient ground vibrations (microtremors) to determine subsurface geological structures. In addition, the technology compares horizontal ground motion to vertical motion across different frequencies, creating a seismic "fingerprint" of the subsurface.

    Why it matters for lithium investors:

    1. Cost-effectiveness: Significantly cheaper than drilling programmes
    2. Environmental sensitivity: Minimal surface disturbance compared to drilling
    3. Comprehensive coverage: Can survey large areas rapidly
    4. Depth penetration: Capable of detecting structures at significant depths
    5. Integration potential: Complements existing geophysical and drilling data

    For lithium brine projects specifically, HVSR helps identify the thickness and extent of sedimentary basins that host lithium-bearing brines. Consequently, this directly informs resource estimation and production planning for projects like the Power Minerals Rincon Lithium Project Expansion.

    Strategic Integration: Building a Comprehensive Geological Model

    Power's approach extends beyond single-point data collection to create an integrated understanding of the Rincon basin. However, the HVSR datasets will combine with existing Vertical Electrical Sounding (VES) survey data previously collected at Rincon, forming the foundation of a 3D geological-hydrogeological model.

    Dual-Technology Benefits:

    Technology Primary Function Key Insight
    HVSR (New) Basin architecture mapping Sediment thickness, bedrock depth
    VES (Existing) Conductive zone identification Brine-bearing horizon locations
    Combined Model Integrated analysis Production scenarios, well placement

    This comprehensive model will serve multiple strategic purposes:

    • Future mineral resource estimation
    • Production scenario planning
    • Pump well construction guidance
    • Hydraulic connectivity testing

    For instance, this integrated approach allows Power to optimise drilling locations and maximise resource recovery efficiency across the project area.

    2026 Expansion Timeline: Multi-Project Resource Enhancement

    Power's geophysical programme extends beyond Rincon throughout 2026, leveraging the company's ownership of two Tromino units for maximum operational flexibility. The Power Minerals Rincon Lithium Project Expansion forms the cornerstone of this broader strategy.

    Planned Survey Schedule:

    1. Q1 2026: Complete full-scale Rincon surveys
    2. Throughout 2026: HVSR surveys at Inchuasi and Pocitos Salars
    3. Ongoing capability: In-fill surveys as required across all projects

    Strategic Asset Portfolio:

    Project Location Status 2026 Activity
    Rincon Salta, Argentina Active surveys Resource expansion focus
    Inchuasi Argentina Planned surveys Stratigraphic improvement
    Pocitos Argentina Planned surveys DLE facility planning

    Furthermore, the data will support environmental permitting processes and production modelling as Power advances toward its proposed central Direct Lithium Extraction (DLE) processing facility at the Pocitos Lithium Project.

    Investment Thesis: Positioned for Resource Growth in Proven Basin

    Power Minerals' systematic approach to resource expansion positions the company advantageously in the lithium sector. Moreover, the Rincon project benefits from several key strategic advantages that support the Power Minerals Rincon Lithium Project Expansion objectives.

    Location Benefits:

    • Proximity to infrastructure: Established regional access
    • Proven basin: Located in commercially successful lithium-producing region
    • Government support: Argentina's established mining framework

    Technical Advantages:

    • Deepest known intersection: 605-metre depth with continued brine
    • Owned equipment: Two Tromino units provide operational flexibility
    • Integrated methodology: Combined geophysical approaches enhance accuracy

    Resource Expansion Potential:
    The current resource measurement limitations due to wide drillhole spacing present a clear opportunity for growth. Consequently, the new HVSR data may provide sufficient control to increase mineral resources by filling critical data gaps and extending depth understanding beyond current limits.

    Financial Efficiency:

    • Cost-effective exploration: Geophysical surveys significantly cheaper than extensive drilling
    • Multi-project utilisation: Tromino units applicable across entire portfolio
    • Rapid data acquisition: Accelerated timeline compared to drilling programmes

    Why Investors Should Track Power Minerals Closely

    Power Minerals has positioned itself strategically within Argentina's proven lithium triangle, with upcoming catalysts that could materially impact its resource profile and market position. In addition, the company's methodical, technology-driven approach to resource expansion demonstrates operational competence whilst managing capital efficiently.

    Key Tracking Reasons:

    1. Resource Expansion Catalyst: Immediate potential for increased mineral resources through cost-effective geophysical surveys
    2. Technology Advantage: Owned Tromino units provide ongoing operational flexibility across multiple projects
    3. Strategic Location: Positioned in established, commercially successful lithium basin with infrastructure access
    4. Integrated Approach: Comprehensive geological modelling supports future production planning and permitting
    5. Diversified Portfolio: Multiple lithium projects provide risk distribution and growth optionality

    Upcoming Milestones:

    • Q1 2026: Completion of full-scale Rincon surveys
    • Mid-2026: Initial results integration and 3D model development
    • Throughout 2026: Extended surveys across Inchuasi and Pocitos projects
    • 2026+: Resource estimation updates and production scenario modelling

    Investment Takeaway:

    Power Minerals has transitioned from planning to active field operations at its flagship Rincon project, with advanced geophysical technology providing a cost-effective pathway to resource expansion. The company's systematic approach, combined with strategic positioning in Argentina's lithium triangle and owned survey equipment, creates multiple catalysts for near-term value creation. Investors should monitor upcoming survey results and resource updates as Power advances toward production scenario planning.

    The deployment of advanced geophysical technology at Rincon represents more than routine exploration—it's a strategic initiative that could unlock significant additional lithium resources. However, it also demonstrates Power's operational capabilities across its broader Argentine portfolio, reinforcing the strategic importance of the Power Minerals Rincon Lithium Project Expansion for the company's future growth trajectory.

    Ready to Explore Power Minerals' Lithium Expansion Potential?

    With advanced geophysical surveys now underway at the Rincon Lithium Project and significant resource expansion opportunities emerging, Power Minerals presents a compelling opportunity for investors seeking exposure to Argentina's proven lithium triangle. The company's systematic approach to unlocking additional resources through cost-effective technology, combined with its diversified portfolio of lithium projects, positions it well for potential value creation in 2026 and beyond. Discover more about Power Minerals' strategic initiatives, project developments, and investment opportunities by visiting www.powerminerals.com.au to access comprehensive company information and the latest operational updates.

    Stock Codes: ASX: PNN

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    Discovery Alert does not guarantee the accuracy or completeness of the information provided in its articles. The information does not constitute financial or investment advice. Readers are encouraged to conduct their own due diligence or speak to a licensed financial advisor before making any investment decisions.

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