Silverco Releases Positive PEA for Producing La Negra Mine Outlining a Low Capital, 8.2 Year Mine Life Generating After-Tax NPV of $329 Million

Silverco Mining Ltd. (TSXV: SICO) (OTCQB: SICOF) is pleased to announce the results of an independent Preliminary Economic Assessment ("PEA") completed for its 100%-owned La Negra Mine located in Querétaro, Mexico. The PEA and supporting Mineral Resource Estimate ("MRE") were prepared in accordance with National Instrument 43-101 - Standards of Disclosure for Mineral Projects ("NI 43-101") by independent Qualified Persons from SGS Canada Inc. ("SGS"). All dollar amounts referenced in this news release are in United States dollars (USD or US$) unless otherwise noted.

Key Highlights: Attractive Base Case Economics, with Leverage to Silver Prices - After-tax net present value ("NPV") (5%) of $329 million ("M") and after-tax free cash flow ("FCF") of $438.8M at $50/oz silver ("Ag"). After-tax NPV (5%) of $531.9 M, FCF of $696.2 M at current spot price 1 After-tax NPV (5%) of $991.0 M, FCF of $1,248.5 M at the last twelve month high ("LTM") Robust Production Profile - Average annual production of 4.1 Moz silver equivalent ("AgEq") produced over an 8.2-year mine life, with approximately 65% of revenue from silver. Life-of-mine average all in sustaining costs ("AISC") of $24.86/AgEq oz payable AgEq Low Capital Requirements - Initial capital of only $20.9 M, delivering a 15.7x after-tax NPV to initial capital ratio at base case metal prices. Of the $20.9 M, at the spot price case, only $4.7 M is necessary to be funded off the balance sheet.

New MRE with Solid Foundation for Future: Indicated resources of 15.23 Mt at 201 g/t AgEq for 98.2M AgEq oz and Inferred resources of 2.26Mt at 174 g/t AgEq for 12.6 M AgEq oz.

Opportunities for Optimization - Multiple organic growth opportunities exist including; Mine plan optimization to convert resources and prioritize mining of high-grade areas Exploration upside from near mine high grade silver targets and a potential higher-grade carbonate replacement deposit (CRD) system.

Mark Ayranto, President and CEO, commented: "La Negra has a long history of reliable silver production, and this PEA lays out a clear, low-capital path to return to historic production levels with opportunities identified to optimize and extend the mine life through expansion and conversion of our new Indicated Resource of nearly 100 million silver equivalent 2  ounces. In the short time that we have been operating La Negra, we have already begun to see notable improvements in mined silver grades and recoveries. With our new mining fleet beginning to arrive in late Q4 2026 and our dry-stack tailings project on track for completion and ramp-up in H1 2027, we expect to see a meaningful step-up in throughput in 2027, driving positive impacts to silver equivalent production and AISC. Beyond the base case, we see considerable organic upside at La Negra through mine plan optimization and our recently announced 15,000 metre exploration program testing for high-grade extensions - the first large-scale exploration campaign at the property in two decades. Combined with the ongoing restart of Cusi, this PEA underscores Silverco's rapid growth trajectory as a multi-asset Mexican silver producer and sets us well on our path to become a 10- million-ounce-per-year silver equivalent producer within three years."

PEA Overview The PEA outlines an 8.2-year mine life and steady-state throughput of 2,500 tonnes per day ("tpd") beginning in H2 2027, following arrival and commissioning of the new mining fleet and completion of the dry-stack tailings project, with average annual output of 4.1 million oz AgEq produced.

Table 1 - PEA Summary Units Average LOM Mill Feed Mine Life years 8.2 Mine Throughput Mt/year 0.85 Milling Throughput t/d 2,500 Silver Recovery % 83.6 Lead Recovery % 81.5 Zinc Recovery % 81.9 Copper Recovery % 77.8 Average AgEq Produced (1) M AgEqoz/year 4.1 Average AgEq Payable (1) M AgEqoz/year 3.6 Metal Prices Silver $/oz 50 Copper $/l...