Silverco Mining Files NI 43-101 Technical Report for the La Negra Project PEA
Silverco’s administrative preliminary economic assessment filing mirrors its September guidance, offering no new catalysts to re-rate the stock.
Silverco Mining Ltd. (SICO) filed a National Instrument 43-101 Technical Report containing a Preliminary Economic Assessment (PEA) for the La Negra Mine in Querétaro, Mexico, with an effective date of July 1, 2026. The filing serves as a regulatory compliance step for the PEA previously announced in full on September 21, 2026, with economic metrics, production profile, resource estimates, and capital requirements remaining identical to the earlier release.
The base case economics, calculated at $50/oz Ag, project an after-tax NPV 5% of $329 million and an after-tax free cash flow of $438.8 million. The assessment outlines a life-of-mine average all-in sustaining cost (AISC) of $24.86/oz AgEq, with annual production of 4.1 moz AgEq over an 8.2-year mine life and initial capital requirements of $20.9 million.
The report also includes a new mineral resource estimate (MRE) defining indicated resources of 15.23 Mt at 201 g/t AgEq, equating to 98.2 moz AgEq. Inferred resources are listed at 2.26 Mt at 174 g/t AgEq, or 12.6 moz AgEq. The release contains no new operational updates, financial results, or strategic shifts, functioning purely as an administrative filing to satisfy Canadian securities regulations.
Silverco Mining Ltd. (SICO) filed a regulatory document that confirms the previously disclosed Preliminary Economic Assessment (PEA) economics, introducing no incremental data. The market has already priced in the September 21 announcement, as evidenced by the stock consolidating between $7.20 and $9.30 since late September.
The filing removes administrative uncertainty but provides no new upside or downside, leaving the investment thesis, valuation model, and near-term catalyst timeline unchanged. The stock’s approximately 19% decline from the August 26 earnings print of $9.90 to the October 30 low of $7.29 reflects the market’s digestion of the going concern flag, provisional pricing losses, and the reality that commercial production remains more than six months away. Current price action indicates the PEA is fully absorbed.
Silverco Mining Ltd. (SICO) operates two 100%-owned silver-polymetallic assets in Mexico: La Negra in Querétaro and Cusi in Chihuahua. La Negra is a producing underground mine currently operating at 55% capacity, utilizing a crush-grind-float process to generate lead-silver, copper-silver, and zinc concentrates.
The company’s Cusi asset is a permitted past-producing complex undergoing a $19.2M restart. The site features a 1,200 tpd mill and established infrastructure access. Silverco’s strategic vision is to become a 10+ Moz AgEq/year producer within three years through organic scaling and restart execution.
Mexico is considered a Tier 1 mining jurisdiction with established infrastructure, though the company must carefully monitor permitting, ESG, and local community relations.