What's Happening?
Sunshine Silver Mining & Refining Company has finished a 50,000-meter underground infill drilling program at its Sunshine Mine in Idaho’s Silver Valley. The company reported significant silver intercepts, including 7,069 grams per tonne (g/t) over 1.00
meter in the NY Boy Vein, 1,522 g/t over 4.47 meters in the F-Vein, and 1,067 g/t over 4.50 meters in a newly identified vein. Another F-Vein intercept yielded 5,496 g/t over 1.06 meters. These results will be incorporated into an updated mineral resource estimate expected in the first quarter of 2027, followed by a feasibility study in the second quarter. The drilling program aimed to upgrade the mineral resource classification for the feasibility study and explore near-mine expansion opportunities. The company, whose shares began trading on the New York Stock Exchange after its June 2026 IPO, is targeting a production restart in late 2028.
Why It's Important?
The completion of this drilling program is a critical step for Sunshine Silver Mining & Refining Company as it moves towards restarting operations at the Sunshine Mine. The reported high-grade silver intercepts, particularly those with wider intervals, are crucial for demonstrating the mine's potential economic viability. The upcoming mineral resource estimate and feasibility study in 2027 will provide a more comprehensive understanding of the project's economics, including the amount of mineralization that can support a mine plan and the continuity of the ore body. For the U.S. mining industry, specifically in Idaho's Silver Valley, a successful restart of the Sunshine Mine could represent a significant addition to future silver operating capacity. This development could also influence investor confidence in domestic silver mining projects, potentially attracting further investment into the sector.
What's Next?
The immediate next steps for Sunshine Silver Mining & Refining Company involve integrating the recently completed drilling data into its resource model. An updated mineral resource estimate is anticipated in the first quarter of 2027. This estimate will be crucial in determining whether the geological confidence has improved sufficiently to support the subsequent feasibility study, which is scheduled for the second quarter of 2027. The feasibility study will provide a more definitive assessment of the project's economic viability and will be a key determinant for the targeted late-2028 production restart. The company has a Phase 1 objective to increase overall production capacity from approximately 1,000 to 2,000 tonnes per day, and the feasibility study will need to address the operational aspects required to achieve this goal.
