Pinnacle Commences Underground Delineation Drilling Program at El Potrero
250 - 750 West Pender Street, Vancouver, BC V6C 2T7 - Tel. +1 (877) 271 – 5886 ext. 110
TSXV: PINN OTCQB: PSGCF
Pinnacle Commences Underground Delineation Drilling Program
at El Potrero
VANCOUVER, BRITISH COLUMBIA, May 05, 2026 (TSXV: PINN, OTCQB: PSGCF, Frankfurt: P9J)
– Pinnacle Silver and Gold Corp. ("Pinnacle" or the “ Company") is pleased to announce that the
rehabilitation and drill station preparation in the historic underground mines on the high -grade El
Potrero gold-silver property in Durango, Mexico is sufficiently advanced to commence the underground
delineation drilling program.
The program is starting at the Pinos Cuates mine, where ten drill stations have been prepared on the
two levels of the mine – three stations, for 21 holes and 409 metres on the u pper level, and seven
stations, for 46 holes and 915 metres on the main level – for a total of 67 holes and 1,324 metres.
As the drilling is conducted at Pinos Cuates, rehabilitation and drill station preparation will be completed
at the Dos de Mayo mine, where 6 drill stations for 35 holes and 887 metres are planned . At La Dura
mine, 4 drill stations for 6 holes and 205 m etres are planned. The entire program currently entails
2,416 metres in 108 NQ-size holes, subject to modifications as it progresses.
“The commencement of the underground drilling program at El Potrero is a major milestone as it will
significantly de-risk the project on the way towards a formal production decision later this year,” stated
Robert Archer, President and CEO of Pinnacle. “ Our systematic underground channel sampling,
consisting of almost 900 samples, gave us a good indication of the location and tenor of gold- silver
mineralization, yielding individual assays up to 85.1 g/t Au and 520 g/t over 0 .5 metres in the upper
level of Pinos Cuates . Now the close-spaced drilling will give us a better sense of the overall size,
shape and grade of the mineralized zones.
Surface drilling is being planned to immediately follow the underground program and will fill in gaps
between the mines in addition to testing along strike on the Dos de Mayo vein and other mineralized
veins such as El Capulin and La Estrella. The combined results will then be used to generate an
internal resource estimate that will, in turn, be used to develop a preliminary mine plan.”
Based upon the systematic channel sampl ing in the three historic mines , Pinnacle geologists have
constructed 3D models for each to lay out the drill program . A screenshot of the Pinos Cuates model
can be seen in Figure 1 below. As the underground workings are mostly within or adjacent to the Dos
de Mayo vein, drill holes will be short and designed to cut the vein and establish the contacts and vein
thickness. Drill stations are 12.5 metres apart within the better mineralized areas, with spacing
increasing as they step out along strike. At each drill station, several holes will be drilled at varying
angles in a fan pattern up and down dip on the vein (see Figure 1).
Drill core will be logged and split with a diamond saw on site, and samples of the half-core delivered to
the SGS Lab in Durango for analyses.
250 - 750 West Pender Street, Vancouver, BC V6C 2T7 - Tel. +1 (877) 271 – 5886 ext. 110
TSXV: PINN OTCQB: PSGCF
Figure 1: 3D model of Dos de Mayo vein in the Pinos Cuates mine showing mine workings and proposed
drill holes (colours denote priority)
Qualified Person
Mr. Jorge Ortega, P. Geo, a Qualified Person as defined by National Instrument 43 -101, and the
author of the NI 43-101 Technical Report for the Potrero Project, has reviewed, verified and approved
for disclosure the technical information contained in this news release.
About the Potrero Property
El Potrero is located in the prolific Sierra Madre Occidental of western Mexico and lies within 35
kilometres of four operating mines, including the 4,000 tonnes per day (tpd) Ciénega Mine (Fresnillo),
the 1,000 tpd Tahuehueto Mine (Luca Mining) and the 250 tpd Topia Mine (Guanajuato Silver).
High-grade gold-silver mineralization occurs in a low sulphidation epithermal breccia vein system
hosted within andesites of the Lower Volcanic Series and has three historic mines along a 500 metre
strike length. T he property has been in private hands for almost 40 years and has never been
systematically explored by modern methods, leaving significant exploration potential.
250 - 750 West Pender Street, Vancouver, BC V6C 2T7 - Tel. +1 (877) 271 – 5886 ext. 110
TSXV: PINN OTCQB: PSGCF
A previously operational 100 tpd plant on site can be refurbished / rebuilt and historic underground
mine workings rehabilitated at relatively low cost in order to achieve near -term production once
permits are in place. The property is road accessible with a power line within three kilometres.
Pinnacle will earn an initial 50% interest immediately upon commencing production. The goal will then
be to generate sufficient cash flow with which to further develop the project and increase the
Company’s ownership to 100% subject to a 2% NSR. If successful, this approach would be less
dilutive for shareholders than relying on the equity markets to finance the growth of the Company.
About Pinnacle Silver and Gold Corp.
Pinnacle is focused on the development of precious metals projects in the Americas. The high- grade
Potrero gold- silver project in Mexico’s Sierra Madre Belt hosts an underexplored low -sulphidation
epithermal vein system and provides the potential for near -term production. In the prolific Red Lake
District of northwestern Ontario, the Company owns a 100% interest in the past -producing, high-
grade Argosy Gold Mine and the adjacent North Birch Project with an eight -kilometre-long target
horizon. With a seasoned, highly successful management team and quality projects, Pinnacle Silver
and Gold is committed to building long-term, sustainable value for shareholders.
Signed: “Robert A. Archer”
President & CEO
FOR FURTHER INFORMATION CONTACT:
Email: [email protected]
Tel.: +1 (877) 271-5886 ext. 110
Website: www.pinnaclesilverandgold.com
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accepts responsibility for the adequacy or accuracy of this release.