10 December 2025 – Perth, Australia, | Locksley Resources Limited (ASX: LKY; OTCQX: LKYRF; FSE: X5L) has today announced the completion and interpretation of a new high-resolution helicopter-borne magnetic and radiometric survey across its Mojave Project in California, USA, identifying new rare earth element target areas adjacent to the Mountain Pass district.
Kerrie Matthews, Managing Director & CEO, commented: "The results from this high-resolution geophysical survey are a game-changer for our targeting at Mojave. Moving from broad legacy geophysical data to this level of detail is like turning on the lights in a dark room. We can now see clearly defined structural corridors and Thorium anomalies that look geologically similar to the systems, known in the district. The identification of a potential parallel system near El Campo is particularly exciting and will be a priority for our field teams."
The survey results have defined a new Thorium anomaly within the Mojave Project’s North Block claims, including a notable weathering feature associated with regional drainage, and multiple additional discrete anomalies now being assessed and ranked. A second new Thorium anomaly was also identified, trending parallel to, and approximately 700 metres east of, the high-grade El Campo Prospect, providing potential for parallel mineralisation.
Thorium is considered an important pathfinder for rare earth element mineralisation in the district. The Company also highlighted that the nearby Mountain Pass Rare Earth Mine is characterised by a strong Thorium signature, supporting the relevance of radiometric anomalies as priority follow-up targets. The Company cautioned that radiometric sensors detect gamma rays from the upper ~20–30 centimetres of the surface, meaning anomalies represent surface expressions that require field validation rather than direct detection of mineralisation at depth.
Field teams are now deployed to ground-truth the newly identified anomalies, with mapping and rock chip sampling underway to verify and prioritise targets. Structural interpretation is ongoing, and the Company said this work is intended to support future drill target definition.
For further information, please contact:
Kerrie Matthews
Chief Executive Officer
[email protected]
Jane Morgan
Investor & Media Relations
[email protected]
About us:
ABOUT LOCKSLEY RESOURCES LIMITED
Locksley Resources Limited is focused on critical minerals in the United States of America. The Company is actively advancing the Mojave Project in California, targeting rare earth elements (REEs) and antimony. Locksley is executing a mine-to-market strategy for antimony, aimed at re-establishing domestic supply chains for critical materials, underpinned by strategic downstream technology partnerships with leading U.S. research institutions and industry partners. This integrated approach combines resource development with innovative processing and separation technologies, positioning Locksley to play a key role in advancing U.S. critical minerals independence.
Contact details:
Jane Morgan
Jane Morgan Management
Investory & Media Relations
[email protected]
