Sierra Madre Receives Regulatory Approval for Dry Stack Tailings Deposition on Existing Tailings Impoundment, Paste Backfill of Tailings in Underground Workings and Surface Drilling Pad Sites
Sierra Madre Gold and Silver Ltd. is pleased to announce that SEMARNAT, the federal Mexican regulatory agency in charge of environmental permitting, has approved modifications to the existing...
Source: marketscreener.com