#United States #Boise #Perpetua Resources #Stibnite Gold #Antimony Processing

Perpetua Resources Moves Forward on Domestic Antimony Supply

Perpetua Resources Corp., a publicly traded company committed to restoring and utilizing America’s abundant mineral resources, has recently outlined crucial steps to enhance the nation’s antimony processing capabilities. On September 26, 2025, the company provided a detailed report on its efforts to strengthen the supply chain for antimony, a mineral critical for various industrial and defense applications.

Overview of the Project

The Stibnite Gold Project in Idaho stands as the only domestic source of antimony in the United States. With a conditional Notice to Proceed issued by the U.S. Forest Service, Perpetua is ready to initiate commercial-grade antimony production. The company is gearing up to enter long-term off-take agreements to ensure a steady supply of this essential metal.

In light of these developments, Perpetua intends to issue a Request for Proposal (RFP) aimed at evaluating the technical and economic feasibility of establishing multiple off-site processing facilities. The goal is to secure a consistent supply of antimony for domestic use by assessing third-party facilities based on several criteria, including production capacity, environmental compliance, and reliability.

Engaging with Stakeholders

Jon Cherry, the President and CEO of Perpetua Resources, emphasized the importance of securing a robust antimony supply chain for the United States. He stated, “America needs a secure and robust supply of antimony... We are encouraged by emerging opportunities to expand domestic mineral processing capacity in America and intend to make well-informed, market-based decisions.”

The company has already initiated discussions with a variety of industry leaders including Clarios, Glencore, Nyrstar, Sunshine Silver, and Trafigura. These partnerships aim not only to maximize shareholder value but also to establish a reliable antimony supply for U.S. consumers.

The RFP Process

Perpetua’s RFP process will assess various processing facilities that can handle the 148 million pounds of antimony reserves allocated for commercial use. This process is distinct yet complementary to the ongoing collaboration with the U.S. Army, which focuses on securing a domestic supply of military-grade antimony trisulfide through the Defense Ordnance Technology Consortium (DOTC). The company is set to receive up to $22.4 million to support these initiatives under an Ordnance Technology Initiative Agreement.

The RFP is expected to be issued within the coming weeks, with a final decision anticipated in the fourth quarter of 2025, pending due diligence reviews. This structured process underscores the company's commitment to establishing a sustainable antimony supply chain in the U.S.

The Importance of Antimony

Antimony is a critical element used in various applications ranging from electronics to defense munitions. Its strategic significance has prompted the U.S. government to ensure its supply, especially for military applications that rely on high-quality antimony trisulfide. The Stibnite Gold Project aims to not only fulfill domestic needs but also assist in national defense initiatives.

Conclusion

Perpetua Resources Corp. stands at the forefront of initiating a new era for antimony processing in the U.S. By focusing on sustainable practices and engaging in strategic partnerships, the company aims to secure the domestic supply chain of this crucial mineral, benefiting both the economy and national defense. As the RFP process unfolds, all eyes will be on Perpetua to see how it shapes the landscape of antimony production and processing in America.