06:35 AM EDT, 09/19/2025 (MT Newswires) -- Perpetua Resources ( PPTA ) Friday received a conditional notice to proceed from the U.S. Forest Service for the Stibnite gold project in Idaho.

The notice stated that the project has satisfied all requirements in a January record of decision and allows the start of construction, conditioned on the company posting the joint financial assurance bonding agreed to by USFS, Idaho Department of Lands and the U.S. Army Corps of Engineers.

The Stibnite gold project plans to produce America's only mined resource of the critical mineral antimony, a key component in munitions and advanced defense systems.

This year, the Trump administration placed the Stibnite gold project on the Transparency Projects list under the FAST-41 program established to support domestic mineral production.

Perpetua's share price at last look rose 2.1% to $17.78 in U.S. pre-market trading on Friday.