Sierra Metals Mining News

Sierra Metals one step closer to expanding Yauricocha mine in Peru

Yauricocha's reserves are, in the proven category, 1.8 million tonnes and a little over 7 million tonnes in the probable category.

Government rejects Sierra Metals’ tailings EIA for Yauricocha expansion

Sierra Metals has 15 business days to provide a re-evaluation to the authorities to initiate a review process.