Orestone Sampling Confirms Oxide Gold Stockwork Zone and Two New Exciting Exploration Targets at Francisca Gold-Silver Property

About this update from Orestone Mining Corp.

Vancouver, British Columbia--(Newsfile Corp. - June 26, 2026) - Orestone Mining Corp. (TSXV: ORS) (OTC Pink: ORESF) (FSE: O2R2) ("Orestone" or the "Company") is pleased to announce results of the Phase I sampling and mapping program on the Francisca gold silver project in Salta Province Argentina. A total of 13 trenches were sampled on the South Gold Zone and 5 trenches on the North Gold Zone. In addition, reconnaissance mapping and sampling carried out along the Francisca Trend has identified two new prominent gold mineralized systems. The Tom East Zone where Trench 6B returned 21 metres of 4.45 g/t gold in colluvium, is located 120 metres east of the South Gold Zone and the Kelly Gold Zone, featuring broad zones of gold mineralized stockwork with grades of 0.24 to 0.41 g/t gold. Both zones are open in three directions. The Kelly Gold Zone is located 250 metres along strike of the South Gold Zone and is thought to be an extension of it. OXIDE GOLD STOCK-WORK MINERALIZED TREND The Francisca Gold Trend now covers a northwest strike length of 1500 metres where an oxide gold-silver system can be observed at surface outcropping in numerous areas; North Gold Zone, South Gold Zone, Kelly Gold Zone and the Tom East Gold Zone (stockwork, vein, breccia and epithermal vein systems). The outcropping zones are within a 500 to 1000 metre wide zone of strongly hornfels altered sediments and further defined by a 1700 metre long by 500 to 700 meter wide IP chargeability anomaly of 7.9 mV/V that appears to be related to gold-silver mineralization. Several large, strong IP chargeability anomalies measuring up to 20 mV/V indicate the potential for a larger buried sulphide mineralized gold porphyry. The oxide gold quartz limonite stock-work trend is associated with quartz feldspar porphyry intrusive dykes and intense sericite clay alteration along a NW trending fault system. David Hottman, Chairman and CEO of Orestone Mining Corp., stated: "At the Francisca gold-silver project exploration continues to define new gold-silver targets that provide additional scale along the 1.5 km trend. Orestone employs advanced geological and geophysical techniques in exploration to cost effectively define targets with high potential that can be systematically drill tested. The Company's projects have a relatively low-cost profile to hold and explore and are suitable for exploration year-roun...

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