Berkeley Energia (ASX: BKY) Climbs 5.26%: Could Conchas Expand Its Lithium and Rubidium Story?

Aditi Sarkar

01 September 2026 01:55 PM AEST

Berkeley Energia (ASX: BKY) Climbs 5.26%: Could Conchas Expand Its Lithium and Rubidium Story?

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Key Highlights

Berkeley Energia announced a maiden MRE of 11.8Mt at Conchas at 0.41% Li2O and 0.21% Rb2O.
The resource contains about 49,000t of contained Li2O and 25,200t of contained Rb2O.
Mineralisation starts at surface and remains open at depth.
BKY shares rose 5.26% to AUD 0.50 at the time of writing on 1 September 2026.

Berkeley Energia (ASX: BKY) shares rose 5.26% to AUD 0.50 at the time of writing on 1 September 2026. Berkeley Energia Limited (ASX: BKY) expanded its critical-minerals portfolio in July with a maiden Mineral Resource Estimate for the 100%-owned Conchas Project in Spain. The company reported 11.8Mt at 0.41% Li2O and 0.21% Rb2O, establishing a formal resource base for the lithium and rubidium mineralisation identified at the project. The resource forms part of Berkeley’s Critical Minerals Exploration Initiative in Spain.

Contained Lithium and Rubidium

The maiden resource represents approximately 49,000 tonnes of contained Li2O and about 25,200 tonnes of contained Rb2O. Berkeley reported that the mineralisation is hosted within a muscovitic leucogranite unit and also contains accessory tin, caesium, beryllium, niobium and tantalum. These elements form part of the mineralisation described in the company’s resource announcement.

Open at Depth and Suited to Bulk-Tonnage Mining

The company stated that mineralisation begins at surface and remains open at depth, supporting the potential for further resource growth. The MRE is classified entirely as Inferred and was prepared by independent consultants in accordance with the JORC Code. Berkeley also reported that the resource is amenable to bulk-tonnage, open-pit mining. The company’s disclosure therefore establishes both the resource scale and its reported Mining characteristics.

BKY Share Price Snapshot

At the time of writing on 1 September 2026, BKY shares rose 5.26% to AUD 0.50. The price is presented as a current snapshot and is not linked to the July resource announcement because it is more than two days old. The company’s disclosed focus remains on its critical-minerals exploration portfolio and the Conchas resource. Further company reporting will provide the next updates on the project.

FAQs

Q: What resource did Berkeley Energia announce at Conchas?

A: Berkeley announced a maiden MRE of 11.8Mt at 0.41% Li2O and 0.21% Rb2O.

Q: How much contained lithium does the resource represent?

A: The MRE contains approximately 49,000 tonnes of contained Li2O.

Q: Is the Conchas mineralisation open at depth?

A: Yes. Berkeley reported that mineralisation starts at surface and remains open at depth.

Q: What was the BKY share price at the time of writing?

A: BKY traded at AUD 0.50 at the time of writing on 1 September 2026.

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