Perpetua Resources opens antimony pilot plant in Idaho with US Army

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Perpetua Resources, US Army, and Idaho National Laboratory Launch Critical Minerals Pilot Plant to Advance Antimony Trisulfide Supply

July 30, 2026 6:30 AM EDT

Stibnite Gold Project anchors U.S. Army's nearest-term opportunity for a fully domestic antimony supply chain

Processing plant at the Idaho National Laboratory advances domestic critical mineral processing capabilities

Perpetua Resources' Stibnite Gold Project was key source of World War II military-grade antimony and tungsten

BOISE, Idaho,... More