Guanajuato Silver Company Ltd. (TSX-V:GSVR) (OTCQX:GSVRF), a growing Mexican-based precious metals producer,is pleased to provide an update on the 2024 drilling program and other exploration and development initiatives at the Company’s wholly owned Pinguico Project located in Guanajuato, Mexico.

Highlights

• Drilling of the southern portion of the property targeting the Pinguico and San Jose veins returned several high-grade intercepts that continue to expand the total resource potential of what was historically one of the Guanajuato district’s highest grade mining operations. The Company is targeting a resource estimate for Pinguico in late 2025.
• The Company drilled a single deep hole of over 650 meters that has successfully intersected the Veta Madre vein on the El Pinguico property. Drill hole #SP24-003 confirmed the potential for an important confluence of the Pinguico mineralized system with the prolific Veta Madre regional fault structure.
• The Company continues to advance underground mining activities with the goal of reaching a sizeable underground stockpile located approximately 600 meters from the Level 4 adit entrance. This advance is following known mineralization and is generating revenue from silver and gold production that is offsetting the costs of drifting. The Company expects to reach the stockpile in Q2, 2025.

James Anderson, Chairman & CEO, said, “We value our Pinguico gold and silver project for its near-term organic growth potential within Guanajuato Silver’s growing portfolio of mining assets. Over the past two-years, our focus has been on processing Pinguico’s low grade above ground historical stockpiles; preparing to expand the Level 4 access corridor and drive toward the historical underground stockpile; drilling the near surface San Jose and El Pinguico vein structures; and drilling towards the conceptual target of the probable intersection of the regional Veta Madre structure and the historically high-grade El Pinguico vein.”

Pinguico Extensional Drilling

In 2024, drilling was conducted on the southern portion of the property with the objective of exploring the El Pinguico and San Jose veins along strike to the south. A total of 446 metres were drilled in three drill holes with the following results. Unless otherwise noted, all references in this news release to silver equivalent or AgEq have been calculated using 85:1 gold/silver (Ag/Au):

Pinguico Diamond Drill Results

 Long Section El Pinguico Vein

 Pinguico Diamond Drilling Cross Sections for SP24-001 and SP24-004

 Pinguico Drillhole SP24-003 – Drilling into the Veta Madre

Veta Madre Longitudinal Section

 Pinguico Deep Drilling

In 2024, a single deep drill hole – SP24-003 – was drilled to a 659m core length to advance the Company’s understanding of the relationship between Veta Madre and the El Pinguico vein structure at depth. This drill hole successfully intersected a broad (approximately 60m in core length), highly altered, deformation zone associated with the Veta Madre fault zone – the first time Veta Madre proper has been intersected on the Pinguico property. Within this zone, which is located within the highly productive Guanajuato Conglomerate Unit, the drill hole encountered an interval of stockwork with 0.56 gpt gold over an estimated true width of 1.13m.

Pinguico Diamond Drill Results – SP24-003

After further studying the implications of this potentially important interval, the Company plans to drill a deeper hole toward the interpreted intersection of El Pinguico and Veta Madre in Q2, 2025.

Pinguico Diamond Drilling Cross Sections for SP24-003

Pinguico Underground Development

At Pinguico, underground mining activities resumed in mid-year, with the objective of continuing the advance at level 4 toward the historical underground backfill stockpile. Mine drifting has advanced over 75 meters to date with the development of a 4m x 4m fully serviceable crosscut. The Company expects to complete the advance in Q2, 2025. During the quarter, production from development contributed an estimated 2,562 tonnes with an average grade of 1.19 g/t gold, 102 g/t silver for 203 g/t silver equivalent.

The underground stockpile ranges from 25 metres to 100 metres in thickness and has an indicated mineral resource of 25,600 tonnes grading 166 g/t silver and 1.67 g/t gold for contained metal of 136,600 ounces of silver and 1,375 ounces of gold. For additional information please refer to the technical report entitled: “Behre Dolbear Technical Report – El Cubo/El Pinguico Silver Gold Complex Project” dated April 17, 2024 and filed on SEDAR+ at www.sedarplus.ca.

Drill Collar Information

About Guanajuato Silver

GSilver is a precious metals producer engaged in reactivating past producing silver and gold mines in central Mexico. The Company produces silver and gold concentrates from the El Cubo Mine, Valenciana Mines Complex, and the San Ignacio mine; all three mines are located within the state of Guanajuato, which has an established 480-year mining history. Additionally, the Company produces silver, gold, lead, and zinc concentrates from the Topia mine in northwestern Durango. With four operating mines and three processing facilities, Guanajuato Silver is one of the fastest growing silver producers in Mexico.

Sampling and quality assurance/quality control

Drill core was first reviewed by a Company geologist, who identified and marked intervals for sampling. The marked sample intervals were then cut in half with a diamond saw; half of the core was left in the core box and the other half was removed, placed in plastic bags, sealed and labeled. Intervals and unique sample numbers are recorded on the drill logs and the samples are sequenced with standards and blanks inserted according to a predefined QA/QC procedure. The samples are maintained under security on site until they are shipped to the analytical lab. The analytical work reported on herein was performed by Corporacion Quimica Platinum S.A de C.V., Silao, Guanajuato, Mexico which is independent of GSilver. To validate the Company’s assay results and its preparation procedures, GSilver sends additional random samples representing approximately 20% of all analytical samples to Bureau Veritas in Hermosillo, Sonora, Mexico. Bureau Veritas is an ISO/IEC (International Organization for Standardization/International Electrotechnical Commission) geo-analytical laboratory and is independent of GSilver and its “qualified person”. In order to further validate the Company’s assay results and its preparation procedures GSilver sent additional random samples representing approximately 10% of all analytical samples to SGS Mexico, S.A de C.V, Durango, Mexico. SGS is also an ISO/IEC geo-analytical laboratory and is independent of GSilver and its “qualified person”. Core samples were subject to crushing at a minimum of 70 per cent passing two millimeters, followed by pulverizing of a 250-gram split to 85 per cent passing 75 microns. Gold determination was via standard atomic absorption (AA) finish 30-gram fire assay (FA) analysis, in addition to silver and 34-element using fire assay and gravimetry termination. Following industry-standard procedures, blank and standard samples were inserted into the sample sequence and sent to the laboratory for analysis. Data verification of the analytical results included a statistical analysis of the standards and blanks that must pass certain parameters for acceptance to ensure accurate and verifiable results.

Qualified Person

William Gehlen, a Director of Guanajuato Silver, is a Certified Professional Geologist with the American Institute of Professional Geologists (No. 10626), and a Qualified Person as defined by National Instrument 43-101, Standards of Disclosure for Mineral Projects.

Mr. Gehlen has reviewed and verified technical data disclosed in this news release and detected no significant QA/QC issues during review of the data and is not aware of any sampling, recovery or other factors that could materially affect the accuracy or reliability of the drilling data referred to herein. Verified data underlying the disclosed information includes reviewing compiled assay data; QA/QC performance of blank samples, duplicates and certified reference materials; and grade calculation formulas.