Sunshine Silver Updates Operational Readiness at Mine

KELLOGG, Idaho, USA -- Sunshine Silver Mining & Refining Company (NYSE: SSMR) provided an operational readiness update for the Sunshine Mine in Idaho's Silver Valley, focusing on underground development, infrastructure modernization, and surface site preparation ahead of a planned return to production in late 2028.

The company is advancing its feasibility study, targeted for completion in the second quarter of 2027. Recent milestones include significant underground development meters, infill drilling progress, and infrastructure upgrades such as the new production hoist servicing the Jewell Shaft.

Key Highlights

• Advancement of underground development, rehabilitation, and drilling activities.
• Completion of the new production hoist servicing the Jewell Shaft.
• Initiation of the Silver Summit Hoist and Shaft upgrade project.
• Demolition of the legacy mill and related surface infrastructure.