01:30:41 EDT Wed 15 Apr 2026
Enter Symbol
or Name
USA
CA



Orestone Mining Corp (3)
Symbol ORS
Shares Issued 107,084,563
Close 2026-04-14 C$ 0.09
Market Cap C$ 9,637,611
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Orestone completes phase I exploration at Francisca

2026-04-14 19:28 ET - News Release

Mr. David Hottman reports

PHASE ONE EXPLORATION COMPLETE AT FRANCISCA GOLD PROJECT SALTA PROVINCE ARGENTINA

The phase I exploration program has been completed on Orestone Mining Corp.'s Francisca gold project in Salta province, Argentina. Mapping and sampling at Francisca have outlined a strongly sericite clay altered gold stockwork system in highly limonitic sericite clay altered feldspar porphyry and hornfels hosted gold stockwork system.

At the south gold zone, mapping indicates a stockwork width from 40 to 70 metres (m) averaging 50 m along a 400 to 500 m strike length. The zone consists of highly sericite clay altered porphyry and hornfels host rockscut 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.

At the north gold zone three, subparallel en-echelon, highly altered and mineralized zones are present averaging 40 to 50 m in width and with individual strike lengths of 100 to 150 m. The southwestern zone consists of highly altered porphyry and hornfels similar to the south gold zone, while the two northern zones consist of sericite altered quartz manganese stockworks.

Additional prospecting was carried out along strike to the north and south of the known gold mineralized stockwork, altered porphyry and hornfels zones. More information will be released in the near future.

A total of 675 rock chip samples were taken from the mineralized zones. Chip samples varying from one to three m in length were taken by a crew of four samplers and a supervisor under the direction of senior geologist Ruben Davacino. The samples consisted of individual to contiguous rock chip and chip channel samples depending on the exposure. Standards, duplicates and blank samples were then inserted averaging 14 per cent of the total samples taken. The samples were then transported under chain of custody to the Alex Stewart International Argentina S.A., an internationally recognized analytical facility located in Palpala, Jujuy province, Argentina. Samples varied in weight from 1.77 to 3.38 kilograms (kg), and will be analyzed by fire assay for gold and ICP (inductively coupled plasma) for 39 multielement analysis, including silver. Duplicate, blank and standard samples will be analyzed for quality control, as well as the standard QA/QC (quality assurance/quality control) internal controls used by Alex Stewart International Argentina.

Additional prospecting was carried out to the north and south of the known gold mineralized stockwork, altered porphyry and hornfels zones. More information will be released in the near future.

David Hottman, Orestone's chief executive officer, stated: "The Francisca property covers a robust gold system discovered during a period of historically very low gold prices, with no meaningful exploration being conducted during the last 20 years. We are excited to get the surface exploration completed in preparation for drilling to test this large gold target. Our goal is to define an oxide gold deposit that can be mined by open pit."

Oxide gold stockwork mineralized trend

Geologic mapping has outlined an oxide gold stockwork mineralized trend over a northwest strike length of 1,100 m outcropping on the crest of a hill with moderate relief. Two zones (north and south) are surrounded by a 500 to 1,000 m wide area of strongly hornfels altered sediments with the south zone underlain by a 400 by 500 m circular IP (induced polarization) changeability anomaly indicating potential for a larger mineralized intrusive body at depth. The oxide gold quartz limonite stockwork trend is associated with quartz feldspar porphyry intrusive dikes and intense sericite alteration along northwest-trending faults.

Gary Nordin, PGeo, a director of the company, is a qualified person as defined by National Instrument 43-101. Mr. Nordin has reviewed and approved the technical information in this news release.

Orestone can earn up to an 85-per-cent interest in the Francisca property for cash payments and exploration expenditures totalling $4.2-million (U.S.) over seven years. The Francisca property is located in Salta province, northwestern Argentina, approximately 80 kilometres (km) northwest of the city of Salta. The property is in the eastern Puna-Altiplano region at an elevation of 3,300 to 3,650 m with moderate terrain, limited vegetation, and is easily accessible via paved and gravel roads. Exploration can be conducted year-round. Salta Province is a region of good infrastructure where numerous large-scale copper, gold and lithium projects have and are being developed.

About Orestone Mining Corp.

Orestone Mining is a well-financed, Canadian-based company with an internationally experienced management team. The board of directors and management team have experience in all aspects of the mining business, having been involved in numerous corporate- and project-level successes. Orestone's property portfolio includes exposure to gold, silver and copper on projects located in Canada and Argentina. The company's near-term objective on the Francisca gold project, located in Salta, Argentina, is to define an oxide gold deposit minable by open-pit methods. The company's 100-per-cent-owned Captain gold-copper project, located in British Columbia, Canada, hosts a large gold dominant porphyry system that is permitted for 79 drill locations. Both projects are road accessible and suitable for exploration year-round.

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