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Silverco Completes Promontorio Dewatering; Rehabilitation Work Underway

Mine Development & Operations

Silverco Completes Promontorio Dewatering;

Rehabilitation Work Underway

Vancouver, British Columbia--(Newsfile Corp. - January 6, 2026) - Silverco Mining Ltd. (TSXV:

SICO) ("Silverco" or the "Company") is pleased to announce several key operational and technical

milestones at its 100%-owned Cusi Project in Mexico. The Company has successfully completed the

dewatering of the underground workings at Promontorio and has commenced early rehabilitation works

as part of its plan to restart production.

Highlights and Upcoming Milestones:

Dewatering Complete:

Underground workings at the Promontorio area of the Cusi Project have

been successfully dewatered, allowing for full access to the initial restart zone.

Site Management Hire:

A project manager has been hired in-country to manage and oversee the

execution of the mine restart. Key discipline managers are actively being recruited to build out the

project and operations team.

Rehabilitation Underway:

Early-stage rehabilitation works have commenced, including ramp

scaling, ground support installation, and the identification, repair and replacement of underground

infrastructure.

Restart Study Advancing:

JDS Energy & Mining Inc. ("JDS") has been engaged to produce a

Restart Study, which is currently progressing well and utilizes the updated Mineral Resource

Estimate ("MRE").

Metallurgical Optimization Test work:

Forte Analytical ("Forte") has been engaged to complete

metallurgical optimization test work which is nearing completion, results of which are expected

shortly.

Exploration Momentum:

Remainder of the 2025 drill program results are expected in early Q1

2026; recently flown LiDAR survey data is currently being integrated to refine high-priority targets

for the 2026 exploration program.

Mark Ayranto, CEO of Silverco

commented

:

"Completing the dewatering of Promontorio is a critical operational milestone that paves the way for

our return to production at Cusi. With JDS Mining now advancing the Restart Study and our crews on

the ground beginning essential rehabilitation, we are rapidly transitioning from exploration and

maintenance into an active development phase. Promontorio will serve as our initial mine restart

area, given its significant existing development infrastructure, and we look forward to delivering the

restart study, remaining 2025 drill results, and more early in the new year.

With silver spot prices hitting all-time highs, Silverco is positioned to take imminent benefit of the

current metal price regime. The Cusi Project benefits from being a permitted operation with significant

existing infrastructure-including a 1,200 tpd mill and the now-dewatered underground workings at

Promontorio.

This advantage allows us to move quickly with urgency to transition Cusi back into production to

capture this value, de-risking the project at an opportune time when the market is demanding high-

quality silver projects. Silverco offers a rare combination offering one of the highest levered silver

mines in the world with +85% of the economic value coming from silver, existing infrastructure, and a

clear path to production in one of the strongest silver markets we have seen in decades."

Operational Update

Following the successful dewatering of the Promontorio area, Silverco has mobilized crews to begin

essential rehabilitation of the underground workings. This work is a critical step in de-risking the project

and preparing for a return to production. Current work streams include:

Rehabilitating Primary Access:

Systematic scaling and ground support remediation and

installation are progressing ahead of schedule to provide safe access to the initial restart zones.

Restoring Essential Services:

Crews are currently repairing and upgrading underground

electrical, ventilation, and water infrastructure to meet the requirements of an active production

environment.

Underground Drilling Readiness:

Ventilation and utility services are being extended into priority

exploration areas, while technical teams finalize target designs for the 2026 underground drill

program.

Restart Study & Engineering

Silverco has engaged JDS to lead the Cusi Restart Study. JDS is a premier mining consultancy with a

proven track record of transitioning projects from study phases into successful production. The study is

leveraging the updated Mineral Resource Estimate (MRE) and will define the economic and operational

parameters required for a resumption of mining. The Company remains on track to deliver the results of

the Restart Study in late Q1 2026.

Metallurgical Optimization

Forte is currently conducting metallurgical optimization test work on mineralized composites from the

Promontorio and San Miguel zones. This program is specifically designed to support the restart plan,

focusing on:

Maximizing metal recoveries.

Defining metallurgical properties of the San Miguel zone.

Optimizing grind size and reagent configurations.

Defining concentrate specifications for potential off-take agreements.

Updated Mineral Resource Estimate

The technical foundation for the restart is the recently updated MRE (

published December 9, 2025

),

which confirmed Cusi as a robust, high-grade, silver-primary project. The Company is in the final stages

of preparing the NI 43-101 Technical Report supporting this MRE and expects to file it on SEDAR+ this

month.

Table 1: Cusi Project Underground Mineral Resource Estimate, October 20, 2025

Resource Class

Mass

Average Grade

Material Content

Ag

Au

Pb

Zn

AgEq

Ag

Au

Pb

Zn

AgEq

Mt

g/t

g/t

%

%

g/t

koz

koz

Mlb

Mlb

koz

Measured

0.69

277

0.08

0.37

0.42

305

6,114

1.8

5.6

6.3

6,725

Indicated

4.21

195

0.16

0.78

0.93

255

26,330

22.2

72.7

86.5

34,433

M + I

4.89

206

0.15

0.73

0.86

262

32,443

24

78.3

92.8

41,157

Inferred

4.07

172

0.17

0.89

1.2

243

22,479

22.2

79.5

107.5

31,753

Details of the mineral resource estimate are included in the

December 9, 2025 news release

.

Corporate Milestone: Tier 1 Issuer Application

Silverco intends to apply for graduation to a Tier 1 Issuer on the TSX Venture Exchange. This transition

reflects the Company's increased scale and the quality of its asset base.

Exploration and 2026 Season

Silverco continues to evaluate results from its successful 2025 exploration program. To date, the

Company has released assays for 26 holes, with results from an additional 20 holes expected to be

received and published in early Q1 2026. The remainder of the program tested for extensions along

strike at San Miguel, and for confirmation of downthrown mineralization at San Juan.

The Company is currently finalizing its 2026 exploration program and expects to resume field activities

by mid-Q1. To optimize target generation, Silverco recently completed a property-wide LiDAR survey.

This high-resolution data is being integrated with 2025 drilling results, surface mapping, and updated

MRE interpretations. This integrated, data-driven approach will refine targets across the project area

and guide resource expansion in the coming year.

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/279669