Canada-based junior mining company Silver Tiger Metals announced the results of a Preliminary Economic Assessment (PEA) for the underground expansion and an updated Pre-Feasibility Study for the Stockwork Zone at its owned El Tigre Project in Sonora. The company reported a combined after-tax net present value of US$760 million across its underground and open-pit developments, calculated at base prices of US$38/oz silver and US$3,200/oz gold.
These evaluations utilize base case metal prices of US$38/oz silver and US$3,200/oz gold. The 2026 PEA focuses on the high-grade underground mining economics of the El Tigre mine, Sulphide, Black Shale, and Seitz Kelly zones, yielding an after-tax NPV of US$304 million with an internal rate of return of 42.8%. The project features a 15-year underground mine life supplemented by three years of historical tailings processing, recovering a total of…
