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Orestone Acquires Large Oxide Gold Stock-Work System in Salta Province, Argentina

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Vancouver, British Columbia--(Newsfile Corp. - February 11, 2025) - Orestone Mining Corp. (TSXV: ORS) (OTC Pink: ORESF) (FSE: O2R2) ("the Company") is pleased to announce that it has signed an Option Agreement ("the Agreement") to earn up to an 85 per-cent interest in the seven square kilometer Francisca property located in Salta Province, northwestern Argentina approximately 80 kilometres northwest of the city of Salta. Geologic mapping has outlined an oxide gold stock-work mineralized trend over a northwest strike length of 1100 metres outcropping on the crest of a moderate relief hill. Orestone is targeting an oxide gold deposit mineable by open pit methods and amenable to heap leach gold recovery.

Two gold zones have been outlined to date within the trend. The surface expression of the North and South zones each measure 400 to 450 metres in strike length and widths vary from 50-100 metres. The zones are surrounded by a 500 to 1000 metre wide area of strongly hornfels altered sediments and a large IP changeability anomaly indicating a potential larger intrusive body at depth. The oxide gold quartz limonite stock-work trend is associated with quartz feldspar porphyry intrusive dykes and intense sericite alteration along NW trending faults.

Eighteen surface trenches have initially outlined the zones at 50 to 100 metre spacings with 11 trenches encountering significant gold and silver values. Mansfield Minerals discovered the zones in 1996 based on 300 initial grab samples from the exposed gold zones averaging 0.958 g/t gold. Mansfield then conducted detailed geological and structural mapping, trenching and detailed sampling in the period 1996-1999. Cascadero Copper later resampled portions of the trenches and drilled thirteen diamond drill holes in 2006 to depths of 30 to 100 metres. Drilling however was poorly oriented with a northerly strike and did not adequately test the target gold zone.

High grade intervals of gold are noted in historic summary reports and on trench maps over widths of 3 to 14 metres with grades from 1 to 109 g/t gold. Summaries of trenching data across the South zone are noted to have gold assay intervals of 52 metres grading 3.65 g/t gold with 17.88 g/t silver in trench TZ1 and 110 metres grading 0.82 g/t gold with 7.33 g/t silver in trench TZ2. The mineralization in both trenches remains open, indicating the potential for expansion. Mansfield noted that the high-grade intervals are hosted within a broad zone of lower grade material but only the higher-grade zones were noted.