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Stibnite gold project, US

Image of Stibnite project

Photo by Perpetua Resources Corp

1st August 2025

By: Sheila Barradas

Creamer Media Research Coordinator & Senior Deputy Editor

     

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Name of the Project
Stibnite gold project.

Location
Central Idaho, in the US.

Project Owner/s
Mining exploration and development company Perpetua Resources Corp.

Project Description
The project is expected to be one of the highest-grade openpit gold mines in the US. It is designed to redevelop the abandoned Stibnite mine site for gold, silver and antimony, while providing environmental restoration for the dormant site.

The project contains an estimated 4.8-million-ounce gold reserve and is expected to produce 450 000 oz/y of gold over the first four years of production.

In addition, the estimated 148-million-pound antimony reserve is the only identified antimony reserve in the US, and is expected to supply an estimated 35% of the country’s demand in the first six years of operation. 

Antimony is a listed critical mineral for its role in technology, defence and energy products.

Potential Job Creation
Not stated.

Net Present Value/Internal Rate of Return
The project is expected to provide an estimated 550 jobs for rural Idaho during operations.

Capital Expenditure
Not stated.

Planned Start/End Date
The US Forest Service approved the mine plan in January 2025, in accordance with the country’s National Environmental Policy Act.

This final record of decision concludes an extensive eight-year process of investigation, analysis, consultation and public engagement.

The approval enables Perpetua to proceed towards a final construction decision, including securing remaining federal and state permits, and project financing.

Latest Developments
None stated.

Key Contracts, Suppliers and Consultants
None stated.

Contact Details for Project Information
Perpetua Resources Corp, tel +1 208 901 3060 or email info@perpetuacorp.us.
 

Edited by Martin Zhuwakinyu
Creamer Media Senior Deputy Editor

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