Image: Perpetua Resources Perpetua Resources Corp. (Nasdaq: PPTA; TSX: PPTA) has received final federal approval to begin construction at its Stibnite project in Idaho, positioning the company to deliver the United States’ only domestic supply of antimony along with significant gold production.The US Forest Service issued a conditional Notice to Proceed on Friday, confirming that Perpetua had satisfied all requirements outlined in the January 2025 Record of Decision. The only remaining step before initial c ...