• High-grade antimony (Sb) assays up to 16.90% Sb from surface grab samples
• Surface results confirm continuity of high-grade stibnite mineralisation along strike
• Assay data validates the current diamond drilling program and geological model

Locksley Resources Limited has announced high-grade antimony assay results from surface exposure mapping at the historical Desert Antimony Mine (DAM), located within the Company's Mojave Project in California, USA. The surface grab samples, collected during preparation for the maiden drilling program, returned consistent high-grade results, with a peak value of 16.90% antimony (Sb). These surface samples align closely with the previously reported high-grade batch sampling identified in the historical underground workings, which returned weighted averages up to 25.7% Sb. The confirmation of these high-grade antimony results at surface is geologically significant, as it validates the interpretation that the stibnite vein lodes extend above and along strike to the north of the historic mine levels. This technical data has enabled the development of a more robust 3D geological model of the deposit and has allowed for the optimisation of diamond drill hole planning for the current drilling program. Locksley is now focused on ongoing diamond drilling at DAM to further refine the geometry and evaluate the resource potential, as well as integrating the current surface assays and pending drilling results into an updated comprehensive 3D geological model. The Company will also progress core sampling and analysis to support metallurgical and processing test work aligned with the U.S. Department of Energy Critical Minerals programs, and advance the design and construct tender for the Phase 1 Pilot Processing facility.

Locksley is focused on ongoing diamond drilling at DAM to further refine the geometry and evaluate the resource potential, as well as integrating the current surface assays and pending drilling results into an updated comprehensive 3D geological model. The Company will also progress core sampling and analysis to support metallurgical and processing test work aligned with the U.S. Department of Energy Critical Minerals programs, and advance the design and construct tender for the Phase 1 Pilot Processing facility.