Equinox Resources Unveils Major Discoveries at Alturas Antimony Project

Exploration Overview

The recent exploration campaign at the Alturas Project marked a significant step forward in understanding the geology and mineralisation potential of this historical antimony mine. The campaign focused on extensive prospecting and detailed geological mapping across the eastern portion of the project, with a clear objective to expand on historical data and assess mineralisation beyond the known boundaries.

One of the key findings from this campaign was the successful identification of an extensive 1.5 km shear zone, which transects the property from west to east. This shear zone, ranging in width from 5 to 25 metres, acts as the main structural feature controlling mineralisation across the project area. The zone features multiple dilation zones, which are crucial as they provide ideal conditions for the accumulation of mineralising fluids. These dilation zones were evident throughout the structure, adding significant exploration upside. The complex geology surrounding the shear zone, characterised by rugged and steep terrain, presents both challenges and opportunities for further exploration but underscores the strength and persistence of the mineralised system.

Key Discoveries

In addition to the shear zone, the exploration team discovered a new copper-bearing boulder field with malachite staining in altered mafic intrusive rocks. These rocks host 2-3% fine sulphides, with the estimated copper content ranging between 0.5% and 1.5%. This discovery points to the potential presence of a copper-rich mineralised zone beneath the surface, offering substantial upside for further exploration.

Newly identified alteration zones, including iron carbonate and talc, were found within mafic to ultramafic rocks along the eastern extension of the shear zone. These alterations suggest strong hydrothermal activity and potential for additional high-grade mineralisation. Multiple rock and soil samples containing stibnite were collected, targeting key shear structures and contact zones between intrusive rocks and greenstones. Samples have been sent to the lab, with results expected in late October to early November.

Historical Context

The campaign also verified the historical workings of the Alps-Alturas Mine, which reportedly produced 105 tonnes of high-grade antimony ore (averaging 57.2% Sb) between 1915 and 1926. The exploration team confirmed the presence of four historical adits and a large open cut along the primary shear zone. These workings host massive stibnite mineralisation, with some samples grading up to 100% stibnite, while others displayed slightly lower percentages but highlighted the potential to expand the mineralised boundaries.

Next Steps

Equinox Resources will focus on the following actions as part of its ongoing exploration and due diligence strategy:

• Expanded Sampling: Following the copper discovery to the east. Expanded sampling will continue along the eastern extension of the shear zone to define the full extent of the copper and antimony mineralisation.
• Geophysical Surveys and Drone Mapping: To better understand the extent of the shear zone, geophysical surveys will be employed, particularly in areas with difficult terrain. Drone-supported mapping will be utilised to capture more precise geological data over the full length of the structure.
• Sample Analysis: All rock and soil samples collected during the campaign have been submitted to MSA Labs for analysis. The results will provide critical insights into the grades of antimony, copper, and other associated minerals, helping to shape future exploration efforts. Results expected in late October to early November.
• Targeted Drilling: Following and subject to favorable results leading to the identification of targets, future drilling campaigns will focus on testing the depth and continuity of the shear zone's mineralisation. Drilling will also aim to expand beyond the high-grade stibnite zones, targeting the newly discovered copper-bearing boulder field and other potential extensions of the shear zone.