Berkeley Energia has reported a maiden inferred lithium and rubidium resource at its Conchas Project in Spain, alongside appointing former Endesa CEO José Bogas Gálvez to its board, while continuing a US$1.25 billion arbitration against Spain over its Salamanca uranium project.
- Maiden inferred resource of 11.8Mt at 0.41% Li2O and 0.21% Rb2O at Conchas
- Resource open at depth and suitable for bulk-tonnage open-pit mining
- Former Endesa CEO José Bogas Gálvez appointed to Berkeley board
- US$1.25 billion arbitration claim ongoing against Spain over Salamanca project
- Strong balance sheet with A$62 million cash and no debt
Maiden Lithium and Rubidium Resource Marks Strategic Milestone
Berkeley Energia Limited (ASX:BKY) has unveiled a maiden Inferred Mineral Resource Estimate (MRE) for its Conchas Project in western Spain, revealing significant lithium (Li) and rubidium (Rb) mineralisation. The MRE totals 11.8 million tonnes at 0.41% lithium oxide (Li2O) and 0.21% rubidium oxide (Rb2O), equating to roughly 49,000 tonnes of contained lithium oxide and 25,200 tonnes of rubidium oxide. All resources are classified as Inferred, highlighting the need for further drilling to upgrade confidence.
The mineralisation is shallow, starting from surface, and remains open at depth, offering ample scope for resource expansion. Hosted within a muscovitic leucogranite unit, the deposit also contains accessory tin, caesium, beryllium, niobium, and tantalum. The resource is amenable to bulk-tonnage, open-pit mining, with preliminary metallurgical testing demonstrating strong recoveries of lithium and rubidium through flotation and magnetic separation techniques. This positions Conchas as a globally significant rubidium resource, a critical raw material increasingly sought after for advanced technology sectors including defence, aerospace, and renewable energy.
Board Appointment Enhances Spanish Influence
In a move that strengthens Berkeley’s foothold in Spain, the company appointed José Bogas Gálvez as a Non-Executive Director after the quarter’s end. Mr Bogas, the former CEO of Endesa, Spain’s major electric utility with significant nuclear energy interests, brings over 40 years of experience in the Spanish and European energy sectors. His appointment is expected to bolster Berkeley’s influence amid ongoing permitting challenges and regulatory engagement within Spain.
Ongoing Arbitration Seeks US$1.25 Billion Compensation
Berkeley’s wholly owned subsidiary, Berkeley Exploration Limited, continues to pursue international arbitration against the Kingdom of Spain at the International Centre for Settlement of Investment Disputes (ICSID). The claim alleges violations of the Energy Charter Treaty linked to delays and obstacles faced by Berkeley Minera España SA in advancing the Salamanca uranium project. The company is seeking compensation of approximately US$1.25 billion.
The arbitration proceedings have been bifurcated into two phases: first addressing jurisdictional objections related to denial of benefits, with a hearing scheduled for mid-2027, followed by a merits and quantum phase. Despite the dispute, Berkeley remains committed to dialogue with Spanish authorities and advancing the Salamanca Project, which hosts a substantial uranium resource of 89.3 million pounds U3O8, predominantly in Measured and Indicated categories.
Advancing Exploration and Sustainability Initiatives
Berkeley is actively progressing exploration across its Spanish and Portuguese tenements, including applications for prospecting rights in Portugal’s Guarda district targeting lithium, rubidium, and other critical minerals. The company is also advancing environmental and social governance (ESG) commitments, having achieved its 2024 carbon footprint goal and completed an internal audit of its Sustainable Environmental and Mining Management System with no non-conformities identified.
On the regulatory front, Spain’s nuclear sector remains in flux, with recent approvals extending the operating license of the Almaraz nuclear power plant to 2030 and renewed authorization for the Juzbado Nuclear Fuel Fabrication Plant. These developments underscore the strategic importance of nuclear energy in Spain and Europe’s broader energy security framework, which indirectly supports Berkeley’s uranium project ambitions.
Financial Position and Next Steps
Berkeley closed the quarter with a robust balance sheet, holding A$62 million in cash and carrying no debt. The company plans additional infill drilling at Conchas to upgrade resource classification and further metallurgical test work to optimise processing. Meanwhile, permitting progress continues, with environmental reviews underway for exploration permits at the Oliva and La Majada projects in Spain.
While the maiden resource at Conchas offers a promising new chapter for Berkeley’s critical minerals portfolio, the path to production remains contingent on advancing regulatory approvals and enhancing resource confidence. The arbitration outcome over Salamanca also looms as a significant variable for the company’s future trajectory.
Bottom Line?
Berkeley’s maiden lithium-rubidium resource and strategic board appointment position it well in Spain’s critical minerals and energy landscape, but arbitration and permitting uncertainties remain key hurdles.
Questions in the middle?
- How will Berkeley’s additional drilling at Conchas impact resource classification and project economics?
- What are the potential timelines and implications of the mid-2027 arbitration hearing against Spain?
- Can José Bogas Gálvez’s appointment accelerate permitting and regulatory progress for Berkeley in Spain?