Perpetua Resources Advances Construction of the Stibnite Gold Project

Mining News  |  2026-06-02 00:16:34   |   By

In the decision, the Court found that the Plaintiffs failed to show that the planned activities would cause the Plaintiffs irreparable harm. 

SEATTLE (Scrap Monster): Perpetua Resources Corp. (Nasdaq: PPTA) (TSX: PPTA) ('Perpetua Resources' or the 'Company') announced today that the Stibnite Gold Project ('Project') continues to advance previously planned critical path construction and infrastructure activities following the May 29 decision by the United States District Court of Idaho denying the Project opponents' motion for a preliminary injunction related to a lawsuit filed in 2025 by special interest groups. In the decision, the Court found that the Plaintiffs failed to show that the planned activities would cause the Plaintiffs irreparable harm. 

On Saturday, May 30, Perpetua commenced additional critical path construction activities for the 2026 field season, including initial work associated with the Burntlog Route, a key infrastructure project designed to support safe and efficient access to the Project site while minimizing impacts to nearby communities and sensitive environmental areas. These road upgrades will continue in parallel with additional planned construction of on-site worker housing facilities, selected powerline upgrades, and approved exploration and geotechnical drilling. This new activity builds upon the early works construction Perpetua began in October 2025 and is focused on maintaining construction schedule for 2029 operations and delivery of urgently needed antimony to the United States military. 

'We are focused on responsibly advancing the Project and executing on the important work ahead of us,' said Jon Cherry, President and CEO of Perpetua Resources. 'This construction season is narrow and important to advance major infrastructure for the on-time delivery of antimony to support demand from the U.S. military. We also are pleased to continue with important environmental restoration and our commitment to economic development in Idaho.'

The Stibnite Gold Project is designed to redevelop and rehabilitate the abandoned Stibnite mining district, which was largely mined for antimony and tungsten during World War II and the Korean War. The approved project includes extensive environmental restoration measures intended to improve water quality, remove legacy mine waste, reconnect fish habitat, and restore streams and wetlands within the Project area.

Following years of evaluation of alternatives and study of potential environmental impacts, the U.S. Forest Service identified the Burntlog Route as the preferred access road after determining it provides safer travel, limits proximity to sensitive water ways, and reduces impacts on the environment and residents and recreationalists. Perpetua has also placed financial assurances approved by federal and state agencies to ensure reclamation of construction-related impacts.

The U.S. Department of War has identified the Stibnite Gold Project as the only U.S. mine that would be capable of producing antimony volumes sufficient to meet defense demand by 2029. Antimony from the Stibnite Gold Project also provides a domestic source to support growing commercial demand for antimony. Perpetua's planned construction activities for this construction season target critical items that must be completed in order to keep development on track to commence gold and antimony production in 2029.

In preparation for the summer construction season, Perpetua Resources has engaged local contractors and service providers to support initial construction activities. These contracts represent approximately $45 million in direct work expected for businesses and communities across Idaho. 

Courtesy: www.prnewswire.com