
Perpetua Resources Corp. (NASDAQ:PPTA) has begun early works construction at its $1.3 billion Stibnite gold-antimony project in central Idaho, after receiving final approval from the U.S. Forest Service (USFS). The project is the first U.S. antimony mine in decades, marking a fresh milestone in the domestic effort to secure supplies of critical minerals.
The mine, located in the historic Stibnite-Yellow Pine district, about 222 kilometers northeast of Boise, will produce both gold and antimony — the latter a strategic metal essential to defense, energy storage, and semiconductor manufacturing.