Orestone Mining Reports First Gold Assays from Francisca Surface Exploration Program

About this update from Orestone Mining Corp.

Highlights Include Trench T8 - 23.47 metres of 4.71 g/t gold and 28.54 g/t silver Including - 6.26 metres of 12.31 g/t gold and 92.40 g/t silver Vancouver, British Columbia--(Newsfile Corp. - May 7, 2026) - Orestone Mining Corp. (TSXV: ORS) (OTC Pink: ORESF) (FSE: O2R2) (the "Company") is pleased to announce the initial assay results received from the Phase I exploration program on the Francisca Gold Project in Salta Province, Argentina. This program included the resampling of existing trenches for which the Company only possessed historic summary data. At the South Gold zone, mapping indicates a stockwork width from 40-70 metres averaging 50 metres along a 400-500 metre strike length. The zone consists of highly sericite argillic altered porphyry and hornfels host rocks cut by a dense stockwork of thin light brown limonite veinlets with thin dark quartz vein centres and thicker dark limonite quartz veins that are both vertical and shallow dipping. Previously excavated trenches were renumbered, cleaned of debris and chip or continuous chip channel samples were taken. Trench T7 was sampled over a length of 72.31 metres with two well mineralized intervals encountered; 36.97 metres grading 0.78 g/t gold with 7.20 g/t silver and 11.72 metres grading 0.58 g/t gold with 4.80 g/t silver, these intervals are separated by a low-grade mineralized interval of 9.40 metres. Trench T8 was sampled over a length of 83.93 metres with two well mineralized intervals encountered; 23.47 metres grading 4.71 g/t gold with 28.54 g/t silver and 11.72 metres grading 1.95 g/t gold with 12.11 g/t silver; separated by a low-grade mineralized interval of 13.18 metres. Assay results for the first two trenches at Francisca compare favorably to historically reported data and confirm that a robust gold-silver mineralized stockwork system is exposed on the surface. Trench Interval Metres Gold g/t Silver g/t T7 36.97 0.78 7.20 and 11.72 0.58 4.80         T8 23.47 4.71 28.54 incl 6.26 12.31 92.40 and 11.72 1.95 12.11         T8(cut) 23.47 1.65 21.58 Incl(cut) 6.26 4.00 66.37 T8(cut) 11.72 1.07 12.11 Cut threshold - high gold values cut to 4.0 g/t - high silver values cut to 88.0 g/t David Hottman, Orestone's CEO, stated: "These initial gold and silver results from Francisca are very encouraging and demonstrate that a robust gold system is present and e...

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