The developer of the proposed $2 billion Stibnite Gold Project in Idaho is moving to intervene in a lawsuit that could derail its future, telling a federal court that it has invested $400 million over 14 years and cannot afford more delays.
Perpetua Resources Corp. insists its massive mining project—set in the Boise and Payette national forests—would not only deliver gold, silver and antimony but also advance U.S. national security interests. The Nez Perce Tribe, however, argues the project will devastate treaty-protected land, fish, and waterways at the headwaters of the South Fork Salmon River.
Perpetua: A Stake Too Large to Lose
In a motion filed Thursday, Perpetua said blocking or even stalling the mine would sabotage its property rights, mineral development, and long-term investments. The company stressed that its work also aligns with Department of Defense funding, which has already poured nearly $75 million into the project to secure domestic antimony supplies for ammunition and other military uses.
“Such outcomes, including even a short delay, will interfere with Perpetua’s ability to help address the Department of Defense’s urgent national security concerns,” the company said.
The tribe has not opposed Perpetua’s formal intervention in the lawsuit.
