“Like with the historic Pinos mine (see News releases for 2 June and 22 July 2025 ), The existing underground effect at DOS de Mayo gives us an important insight into the nature of the gold silence mineralization at the Potrero, “explained Robert Archer, Pinnacle’s President & CEO. “What we see is consistent with this low-sulphidation epithermal systems, where bags of high-quality mineralization (” Clavos “are called in Mexico) take place in a defined horizon, probably consistent with the” cooking zone “of the hydrothermic fluid. Although they are missing, the rackeling, despite the Rackeling, the Racky, the Rackel, the Rackel, the Rackel, the Rackel, the Rackeling, the Rackeling, the Rackeling, the Rackeling, the Rackeling, the Rackeling, the Rackeling, the Racky High, the Racky Highing, Rack height, despite the lack of the rack -high grass, although it is missing, despite the lack of the rack height, although the lack of rack -high grade was likely that the transport levels were built under and outside the mineralized horizon.
It is important to note that sampling lengths do not represent the width of the vein or the size of the mineralization. It is simply the composite lengths of the individual channels that are sampled end-to-end and can be taken at each angle to the trend of mineralization, depending on what is exposed underground. Although the systematic and close distance nature of the sampling gives a representative characterization of mineralization, the full size of this specific clavo, such as with Pinos Cuates, is still unknown and will have to be born to determine.
On a larger scale, the underground sampling provides crucial information to better understand the distribution of gold and silver mineralization, so that we can correlate with the surface sampling within the collective strike length of the historical mines and then extrapolate along the whole 1,600 meters of stroke length that we have so far defined. We are currently in the planning phase for an underground drilling program in all three most important mines that will effectively be delayed on a reasonably detailed scale. More information about this will be released in due course. ”
Of the 53 canal samples taken in the raise, numbers varied from 0.061 to 27.6 g/t au and 8 to 366 g/t AG. An additional 146 channel samples were taken at the main level at DOS de Mayo and, as noted above, values were usually less than 1 g/t au, because this is considered outside the mineralized horizon. At a sub -level, about 25.5 meters above, and connected to the most important level, 42 canal samples were taken, in 9 composites, marked by 10.99 g/t au and 61 g/t aged more than 0.9 meters and 4.22 g/t au and 40 g/t ag over 0.6 meters . It is not yet fully understood how the sub -level is positioned compared to the mineralized zone.
Table 1: Composite channel provisions – DOS de Mayo Salary
Sample numbers | Composite Nr. | Composite length (M) | At the G/T | AG G/T |
Epug25507-25510 | 2 | 2.0 | 7.27 | 63 |
Epug25511-25514 | 3 | 1.9 | 2.02 | 50 |
Epug25516-25518 and 25521-25523 | 4 | 2.9 | 4.95 | 116 |
Epug25524-25529 | 5 | 3.2 | 6.43 | 119 |
Epug25530-25532 | 6 | 1.8 | 6.23 | 106 |
Epug25538-25539 | 8 | 1.7 | 2.08 | 45 |
Epug25541-25543 | 9 | 2.6 | 2.15 | 58 |
Epug25544-25549 | 10 | 3.5 | 11.20 | 179 |
Epug25550-25551 | 11 | 1.3 | 4.95 | 100 |
Epug25552-25553 | 12 | 1.1 | 15.55 | 222 |
Epug25556-25557 | 13 | 1.4 | 11.93 | 190 |
All samples were tested for gold, silver and a series of 32 other elements, including copper, lead and zinc. However, the basic metal provisions were consistently low, which confirms that this is a dominant metal dominant system.
The DOS de Mayo -my own is the southeastern of three historic mines along a strike length of 500 meters at the DOS de Mayo vein system on the Potrero feature. Underground sampling now continues at La Dura -Mijn in the northwest. The vein system has been traced 1600 meters on the surface and there are other parallel and splayaders that are further defined and evaluated because the property has never been systematically investigated. The mining work has now been carefully investigated and individual 3D models are made for every mine in Leapfrog.
QA/QC
The technical results in this press release have been reported in accordance with National Instrument 43-101 standards for disclosure for mineral projects (“NI 43-101”). Pinnacle has implemented industrial standard practices for sample preparation, security and analysis in view of the project phase. This has included joint QA/QC procedures for the industry to the quality of the Assay database, including inserting certified reference material samples and empty samples in Monsterbatches on a predetermined frequency basis.
The systematic chip channel sampling was completed over exposed mineralized structures with the help of a hammer and maul. The protocol for sampling lengths that they were no longer than two meters or shorter than 0.3 meters. The veins are usually steeply to vertical, so these samples are fairly close to displaying the true widths of the structures. Samples were collected along the structural attack or diagonally to the most important structural trend.
All samples were packed in pre-numbered plastic bags; Each bag had a numbered tag inside and was tied with glue tire and then bulk in rice bags in batches to not exceed more than 40 kg. They were then numbered and batch bags were tied with plastic tires and delivered directly to the SGS Laboratory Facility in Durango, Mexico for preparation and analysis. The lab is accredited to ISO/IEC 17025: 2017. All samples were delivered personally by the contract geologist who carried out the sampling under the supervision of the QP.
Sgs -monster preparation code G_PRP89 including weight determination, crushing, drying, splitting and pulverization was used after best practices in the industry where all samples were crushed to 75% less than 2 mm, riffle divided 250 g, crushed split to> 85% passing 75 micron). All samples were analyzed for gold using Code GA_FAA30V5 with a fire determination at 30 g samples with a spectography of atomic absorption. An ICP-OES-Analysis package (inductively linked plasma-optical emission spectrometry) including 33 elements and 4-acid Digesty was performed (code ge_icp40Q12) to determine AG, ZN, PB, CU and other elements.
Qualified person
Mr. Jorge Ortega, P. Geo, a qualified person, and independent of Pinnacle, as defined by National Instrument 43-101, and the author of the NI 43-101 Technical Report for the Potrero project, has assessed the technical information in this news item for this news report.
About the Potrero property
El Potrero is located in the productive Sierra Madre Occidental of West -Mexico and is located within 35 kilometers of four operational mines, including the 4,000 tons per day (TPD) Ciénega Mine (Fresnillo), the 1,000 TPD Tahuehueto Mine (Guanjuo Silver).
High -quality Goud-Silver Mineralization takes place in a low sulfidation epithermic Breccia vein system hosted in Andesites of the lower volcanic series and has three historical mines along a strike length of 500 meters. The building has been in private -hands for almost 40 years and has never been systematically investigated with modern methods, leaving a significant exploration potential.
A previously operational 100 TPD factory on site can be renovated / rebuilt and historic underground mining work is rehabilitated at relatively low costs to reach production in the short term as soon as the permits are present. The building is accessible with a streamline within three kilometers. Surface fees that cover the factory and the mining area are private property (no community problems).
Pinnacle will immediately earn an initial interest of 50% when starting production. The aim would then be to generate sufficient cash flow with which the project can be further developed and to increase the ownership of the company to 100% subject to a 2% NSR. If successful, this approach would be less diluting for shareholders than relying on the stock markets to finance the growth of the company.
About Pinnacle Silver and Gold Corp.
Top is targeted on district scale exploration for wonderful metal In America. The high-quality Potrero Gold-Silver project in the Sierra Madre-Riem of Mexico houses an underexposed low-sulfidation epithermic vein system and offers the potential for short-term production . In the productive Red More District by northwest Ontario, the company owns a 100% Interested in the past to produce, high -quality Argosy Gold Mine and the adjacent Noordberk Project with an eight -kilometer -long target horizon . Of A seasoned, very successful management team And quality Projects, Top Silver And Gold is dedicated Unpleasant building long -term ” durable value for shareholders.
Signed: “Robert A. Archer”
President and CEO
For more information, contact us :
E -Mail: info@pinnaclesilverandgold.com
Tel.: +1 (877) 271-5886 EXT. 110
Website: www.pinnaclesilverandgold.com
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