SICO.V · 2026-03-17 12:00:00

Silverco Mining Commences 30,000-Meter 2026 Drill Program at Cusi, Targeting Massive Step-Out Potential and Regional Blue-Sky Prospects

Exploration Programs

Silverco Mining Commences 30,000-Meter

2026 Drill Program at Cusi, Targeting Massive

Step-Out Potential and Regional Blue-Sky

Prospects

Vancouver, British Columbia--(Newsfile Corp. - March 17, 2026) - Silverco Mining Ltd. (TSXV:

SICO) ("Silverco" or the "Company") is pleased to announce the commencement of its fully funded,

30,000-meter 2026 exploration program at its 100% owned Cusi Mine in Mexico. While a portion of the

program will support operational restart preparation, a major focus of the campaign is aimed at

aggressive resource expansion and testing high potential exploration targets across the property. The

program will utilize both surface and underground rigs, split approximately evenly between the two.

2026 Exploration Program Highlights – Focus on Upside Potential:

San Juan Connectivity and Major Cusi Fault Extension:

Surface drilling is targeting a

massive, near 600-meter step-out to connect highly successful 2025 intercepts with historical

drilling. This targets a newly identified downthrown mineralized block representing the eastern

continuation of the San Juan vein across the Cusi fault.

San Miguel Blue-Sky Expansion:

Surface drilling is designed to aggressively test the lateral

and vertical limits of Cusi's cornerstone deposit, pushing beyond the known mineralization

footprint.

Regional Exploration Prospects:

Dedicated meterage is allocated to test additional high-

priority, unexplored regional targets across the property, alongside potential unlocked through

claim consolidation.

Near-Term Resource Growth at Promontorio:

Underground drilling will target near-term vein

extensions for resource expansion while simultaneously optimizing mine planning to reduce initial

development requirements.

Mark Ayranto, CEO of Silverco, commented

"This fully funded exploration program drives a core dual strategy. We remain very focused on

restarting operations at Cusi in the second half of 2026 while simultaneously exploring highly

prospective, near mine, targets that have the potential for game changing upside at Cusi."

San Juan – Unlocking a Massive Extension Across the Cusi Fault

The most significant blue-sky potential in the 2026 program lies in exploring a major extension across

the Cusi fault. During the 2025 campaign, Silverco successfully intercepted 6.8 metres grading 255 g/t

AgEq in drillhole CU-25-59 (

released in February 26 2026 news release

), which followed up on an

historical intercept of 4.3 metres grading 472 g/t AgEq in drillhole DC21B955.

These results represent a near 600-meter step-out from the main San Juan ore body, an area that

remains largely outside the recent Mineral Resource Estimate update. Geologically interpreted as the

continuation of the San Juan vein to the east of the Cusi fault, the 2026 program aims to test this newly

identified downthrown mineralized block to prove out a potentially massive continuation of the main

resource body and infill the step out drilling.

Figure 1: San Juan Long Section, with resource blocks, +/- 100m, Looking NNW

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/10393/288765_1b9c79e974143858_002full.jpg

Table 1: San Juan Mineral Resource Estimate

Area

Resource

Class

Mass

Average Grade

Material Content

AgEq

g/t

koz

Mlb

koz

San Juan

Indicated

0.16

232

0.21

0.17

0.2

259

1,199

1.1

0.6

0.7

1,338

Inferred

0.12

295

0.07

0.29

0.51

324

1,156

0.3

0.8

1.4

1,267

Note: Please refer to the Ni 43-101 Technical report prepared by SGS Geological Services and filed on SEDAR + and on the Company's website

for details on the Mineral Resource Estimate.

San Miguel – Pushing the Limits of the Resource

San Miguel has become a cornerstone resource for the Cusi Project, boasting Indicated resources of

1.3 million tonnes at 258 g/t AgEq and Inferred resources of 2.03 million tonnes at 249 g/t AgEq. The

2026 surface drilling campaign will look beyond the current resource boundaries, aggressively testing

both the lateral and vertical extents of the deposit. This aims to unlock significant upside, as historical

drilling on the western edges failed to properly intersect the vein due to being drilled at too steep of a dip

or without sufficient step-backs.

Figure 2: San Miguel Long Section, with resource blocks, +/- 175 m, Looking NW

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/10393/288765_1b9c79e974143858_003full.jpg

Table 2: San Miguel Mineral Resource Estimate

Area

Resource

Class

Mass

Average Grade

Material Content

AgEq

g/t

koz

Mlb

koz

San

Miguel

Indicated

1.3

193

0.15

0.83

1.11

258

8,065

6.2

23.9

31.7

10,786

Inferred

2.03

170

0.14

1.02

1.42

249

11,117

9.3

45.5

63.5

16,237

Note: Please refer to the Ni 43-101 Technical report prepared by SGS Geological Services and filed on SEDAR + and on the Company's website

for details on the Mineral Resource Estimate.

Promontorio Underground – Connecting Step outs

With dewatering completed and rehabilitation efforts now well underway, Silverco is initiating targeted

underground drilling at Promontorio. This campaign primarily focuses on validating and increasing the

definition of initial mining areas to effectively derisk upcoming restart activities.

Initial mining is envisioned to begin on the Promontorio East veins, which boast exceptional undiluted

high-grade material with Measured and Indicated grades of 295 g/t AgEq and Inferred grades of 301 g/t

AgEq. Current drilling is specifically aimed at optimizing mine planning and targeting near-term resource

expansion that can be integrated into the short-term mine plan to reduce initial development

requirements.

Figure 3: Planned grade control drilling at Promontorio. Other veins filtered for visual clarity

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/10393/288765_1b9c79e974143858_004full.jpg

Table 3: Promontorio East Mineral Resource Estimate

Area

Resource

Class

Mass

Average Grade

Material Content

AgEq

g/t

koz

Mlb

koz

Promontorio

East

Measured

0.53

285

0.08

0.3

0.36

309

4,824

1.3

3.4

4.1

5,229

Indicated

0.24

211

0.19

0.81

0.6

264

1,609

1.5

4.2

3.1

2,006

M + I

0.76

262

0.11

0.46

0.43

295

6,432

2.8

7.7

7.2

7,235

Inferred

0.21

231

0.32

0.86

0.83

301

1,520

2.1

3.9

3.8

1,987

Note: Please refer to the Ni 43-101 Technical report prepared by SGS Geological Services and filed on SEDAR + and on the Company's website

for details on the Mineral Resource Estimate.

Figure 4: Cusi Plan Overview

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/10393/288765_1b9c79e974143858_005full.jpg

Technical Disclosure

The scientific and technical information contained in this news release has been reviewed and approved

by Nico Harvey, P.Eng., Vice President Project Development of Silverco, a Qualified Person as defined

in National Instrument 43-101. Mr. Harvey is not independent of the Company. Mr. Harvey has reviewed

the sampling, analytical and QA/QC data underlying the technical information disclosed herein.

No production decision has been made at Cusi. Any decision to restart operations will follow completion

of the requisite technical, financial and permitting milestones.

About Silverco Mining Ltd.

The Company owns a 100% interest in the 11,665-hectare Cusi Project located in Chihuahua State,

Mexico (the "Cusi Property"). It lies within the prolific Sierra Madre Occidental gold-silver belt. There is

an existing 1,200 ton per day mill with tailings capacity at the Cusi Property.

The Cusi Property is a past-producing underground silver-lead-zinc-gold project approximately 135

kilometres west of Chihuahua City. The Cusi Property boasts excellent infrastructure, including paved

highway access and connection to the national power grid.

The Cusi Property hosts multiple historical Ag-Au-Pb-Zn producing mines each developed along multiple

vein structures. The Cusi Property hosts several significant exploration targets, including the extension of

a newly identified downthrown mineralized geological block and additional potential through claim

consolidation.

On Behalf of the Board of Directors

"Mark Ayranto"

Mark Ayranto, President & CEO

Email:

[email protected]

For further information, please contact:

Investor relations & Communications

Email:

[email protected]

www.silvercomining.com

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the

policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this

release.

Cautionary Statement and Forward-Looking Information

This news release contains "forward-looking statements" and "forward-looking information" (together,

"forward-looking statements") within the meaning of applicable Canadian securities laws. Forward-

looking statements relate to future events or the Company's future performance and are generally

identified by words such as "anticipate", "believe", "continue", "could", "estimate", "expect", "forecast",

"goal", "intend", "may", "objective", "outlook", "plan", "potential", "priority", "schedule", "seek",

"should", "target", "will", and similar expressions (including negative and grammatical variations).

These forward-looking statements are based on a number of assumptions that, while considered

reasonable by the Company as of the date of this release, are inherently subject to significant

business, technical, economic and competitive uncertainties and contingencies. Key assumptions

include: timely receipt of permits and approvals necessary for planned work; access to surface rights

and community support; no material adverse changes to general business, economic, market and

political conditions; commodity price and foreign exchange assumptions; inflation and input costs

remaining within expectations; and the Company's ability to secure additional financing on acceptable

terms when required.

Forward-looking statements are subject to known and unknown risks, uncertainties and other factors

that may cause actual results, performance or achievements to differ materially from those expressed

or implied. Such factors include, without limitation: exploration, development and operating risks

(including drilling, sampling, assaying, interpretation and modeling uncertainties; variability of

mineralization; representativity of samples; true-width estimation; metallurgical variability; water

management; geotechnical and ground conditions); risks inherent in estimating or converting mineral

resources; the absence of current mineral reserves at the Cusi Property; that AgEq is a reporting

metric only and does not imply economic recoverability; permitting, licensing and regulatory risks in

Mexico (including changes in mining, environmental, labour, water, land access and related regimes);

community relations, social licence and stakeholder engagement risks; title, surface rights, access

and environmental liability risks; health, safety and security risks; commodity price and FX volatility

(silver, gold, lead, zinc; MXN/CAD/USD); cost inflation, supply-chain disruptions and contractor

availability; political and macroeconomic instability; financing and liquidity risks (including the

availability and terms of debt and/or equity); TSX Venture Exchange and other regulatory approvals;

counterparty risks; limitations and uncertainties relating to historical data and third-party reports

(including the risk that historical results cannot be verified to NI 43-101 standards); force majeure

events; litigation and enforcement risks; and those additional risks set out in the Company's public

disclosure filings available on SEDAR+ at

www.sedarplus.ca

Readers are cautioned not to place undue reliance on forward-looking statements. The purpose of

forward-looking statements is to provide readers with information about management's current

expectations and plans and may not be appropriate for other purposes. No assurance can be given

that such statements will prove to be accurate; actual results and future events could differ materially.

The Company undertakes no obligation to update or revise any forward-looking statements contained

herein, except as required by applicable securities laws

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/288765

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