Mr. Joaquin Marias reports

ARGENTA SILVER INTERSECTS 1,385 G/T AG OVER 4.0M AT MANI-COPAN TARGET AND DISCOVERS NEW HIGH-GRADE SILVER ZONE AT EL QUEVAR

Argenta Silver Corp. has released the fourth set of assay results from its continuing 2025-2026 diamond drilling campaign at the El Quevar project in Salta province, Argentina. The latest results highlight significant high-grade silver mineralization at the Mani-Copan and Argentina exploration targets, located 800 metres and 1,500 metres, respectively, from the eastern edge of the current mineral resource, which hosts 45.3 million ounces of silver from 2.93 million tonnes grading 482 grams per tonne (g/t) silver (Ag) and an inferred resource of 4.1 million ounces from 310,000 tonnes grading 417 g/t Ag (1) (see table 1 and table 2). Notably, drill hole QVD-444 at Mani-Copan intercepted 1,385 g/t Ag over 4.0 metres, successfully validating high-grade results previously identified from surface samples (see news release dated Feb. 23, 2026). Furthermore, the company has discovered a new, previously untested mineralized zone at the Argentina target, where all drill holes have encountered high-grade silver. These findings significantly expand the known mineralized footprint and underscore the vast, district-scale potential of the El Quevar project.

Highlights*

High-grade intercept at Mani-Copan:

• Hole QVD-444: intersected 1,385 g/t Ag over 4.0 m (from 271.0 m to 275.0 m). This high-grade interval confirms the continuity of mineralization at the Mani-Copan target and the results are consistent with surface values obtained at the target, as announced in previous news releases. This validates the potential of Mani-Copan to host high-grade mineralization.

New discovery at Argentina target:

• Hole QVD-448: returned multiple mineralized intervals, including a high-grade hit of 725 g/t Ag over 3.0 m (from 78.0 m to 81.0 m);
• Hole QVD-450: demonstrated broad mineralization with 134 g/t Ag over 18.0 m (from 181.0 m to 199.0 m), including higher-grade internal of 245 g/t Ag over 4.0 m (from 189.0 m to 193.0 m).

* Intervals shown are core length. Estimated true widths vary between 60 and 85 per cent of core reported length. Insufficient remodelling and drill density on new data have been completed to calculate true width at this time.

Exploration upside at Andrea target:

• Drilling in the Andrea zone (holes QVD-437 and QVD-441) returned anomalous silver values, confirming the presence of a mineralized system and providing key data for further targeting in this area.

Joaquin Marias, president, chief executive officer and director of Argenta Silver, commented:

"These results reinforce the emerging district-scale potential at El Quevar. The high-grade intercept at Mani-Copan confirms meaningful silver mineralization beyond the current resource envelope, while consistent high-grade results at the Argentina target further expand the footprint of the system. Importantly, Mani-Copan and the Yaxtche deposit share a comparable geochemical signature; however, Mani-Copan is distinguished by exceptionally high-grade surface samples, a characteristic not observed at the Yaxtche deposit. With two rigs active, more than 14,500 metres completed and additional assays pending, we are systematically advancing El Quevar to define the full scale of this silver system."

2025-2026 exploration and drilling program

Since launching on Nov. 1, 2025, the current drilling campaign continues with two rigs operational at El Quevar. The company continues to pursue a dual-track growth strategy: 40 per cent of the program targets resource expansion to strengthen the existing resource base, while the remaining 60 per cent is focused on unlocking new discoveries beyond the existing footprint.

To date, the company has successfully completed over 14,500 metres across 61 holes, representing more than half of the total 25,000-metre program. Laboratory analysis is well under way; over 300 work orders have been submitted, with 40 per cent of these results currently pending. This work supplements the 4,244 metres across 16 holes drilled during the successful 2025 winter drilling program, which achieved a balance of high-grade resource expansion and the discovery of promising exploration targets such as Andrea, Rosa, Argentina and Azufre.

The discovery of a new mineralized zone at the Argentina target, situated more than 1.5 kilometres from the eastern edge of the current mineral resource, significantly expands the known mineralized footprint of the El Quevar project. This emerging zone is headlined by high-grade intercepts of 725 g/t Ag over 3.0 m and 134 g/t Ag over 18.0 m. When coupled with results from the Mani-Copan target, located over 800 m to the south of Yaxtche, where drilling returned an exceptional 1,385 g/t Ag over 4.0 m, these findings underscore the vast, district-scale potential of the property. Furthermore, anomalous silver values identified at the Andrea target continue to provide the company with critical geological vectors to refine future drilling across this expansive system.

About the El Quevar project

The El Quevar project is located in Salta, Argentina, and spans an area of 57,000 hectares. The property remains underexplored with less than 3 per cent of the area covered with comprehensive exploration work. The property boasts exceptional infrastructure with over 60 kilometres of internal roads, a fully owned, fully operational camp for 100 workers with multiple support buildings, and a railroad, gas pipeline and service road just three km from camp, while a high-voltage transmission line lies approximately 20 km from the exploration area. The robust infrastructure associated with the project provides a cost-effective platform to derisk and accelerate future drilling and development.

The foundational mineral resource estimate of the Yaxtche deposit boasts an indicated mineral resource of 45.3 million ounces of silver from 2.93 million tonnes grading 482 g/t Ag and an inferred resource of 4.1 million ounces from 310,000 tonnes grading 417 g/t Ag (1). The mineral resource area remains open at depth and in multiple directions, particularly to the southeast and northwest.

The mineralization at the Yaxtche deposit is defined as a silver-rich, high-to-intermediate-sulphidation epithermal system with associated gold. Mineralization is controlled by northwest-southeast and northeast-southwest fault structures and is mainly hosted in brecciated zones and dacite domes. Silver minerals at Yaxtche consist of complex silver sulphides, sulphosalts and native silver. These minerals are found within silicified breccias, commonly appearing as veinlets, stockworks, disseminations and breccia fillings.

QA/QC (quality assurance/quality control) statement

The company adheres to CIM best practices guidelines for exploration-related activities conducted on its property. Quality assurance and quality control procedures are overseen by a qualified person.

All geochemical sample assay results from Argenta Silver have been independently monitored through a rigorous QA/QC protocol. This protocol includes the regular insertion of blind standard reference materials, blanks and duplicates.

The logging and sampling of the El Quevar drill core were completed at Argenta's core handling facilities in Salta, Argentina. Drill core was photographed, checked for recovery and geotechnical, and then diamond sawn on site, and half-drill-core samples were securely transported to ALS Laboratories sample preparation facilities in Mendoza and forwarded to their facility in Lima, Peru, for analysis. The other half core is retained on site for reference.

Soil samples were prepared by drying at less than 60 C and sieving to minus 80 mesh (code PREP-41). Rock chip samples were dried and then fine crushed to at least 70 per cent passing less than two millimetres, sample split using a riffle splitter, and pulverized a 250-g split to at least 85 per cent passing 75 microns (code PREP-31). Diamond drill core samples were dried and fine crushed to at least 70 per cent passing less than two mm, sample split using a riffle splitter, and pulverized a one-kilogram split to at least 85 per cent passing 75 microns (code PREP-31B).

All rock chip and diamond drill core samples were analyzed for gold using a fire assay on a 50-gram sample with an AAS (atomic absorption spectroscopy) finish, and for 35 elements by four-acid, ICP-AES (inductively coupled plasma atomic emission spectroscopy) finish on a 0.75-gram sample plus mercury using cold vapor AA on a 0.2-gram (ME-ICP61m). Soils were also analyzed for gold fire assays and ICP-AES (Au-ICP21) and 48 multielement four-acid digestion with ICP-MS finish. Overlimit silver was determined by a 50-gram fire assay with a gravimetric finish, and overlimit lead, zinc and copper were determined by OG62 using a mixture of highly oxidizing acids on a 0.4-gram sample.

Qualified person

Rob van Egmond, PGeo, a qualified person as defined by National Instrument 43-101, Standards of Disclosure for Mineral Projects, has reviewed and approved the scientific and technical information contained in this news release. Rob van Egmond, PGeo, has visited the El Quevar project and is not independent of the company.

(1) Refer to the National Instrument 43-101 technical report with effective date of Sept. 30, 2024, titled "NI 43-101 Technical Report on the Mineral Resource Estimate of the El Quevar Project Salta Province, Argentina," posted on SEDAR+ under Argenta Silver.

About Argenta Silver Corp.

Argenta Silver is a silver exploration company committed to (or focused on) advancing projects that support the global energy transition. The company's mission is to create sustainable, long-term value for shareholders by acquiring and developing high-potential silver assets in mining-friendly jurisdictions across Latin America. Led by an experienced management team with deep expertise in exploration, finance and project development, Argenta emphasizes responsible mining practices and is well positioned to meet the rising demand for silver, a critical metal in renewable energy and emerging technologies.

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