Perpetua Resources unit, Sunshine Silver sign Memorandum of Understanding

Perpetua Resources (PPTA) announced its wholly owned subsidiary, Perpetua Resources Idaho, has entered into a Memorandum of Understanding to explore antimony processing opportunities with Sunshine Silver Mining & Refining Company, also based in Idaho. Testing under the MOU, which is non-binding and non-exclusive, will evaluate the technical potential for processing and refining antimony from the Stibnite Gold Project in Idaho at the Sunshine Mine Complex. The MOU will initiate third-party engineering to evaluate a flowsheet to suit different antimony ore types and follows engagement between the parties’ technical and executive teams.