Gold and Antimony at Work
Gold: The Economic Engine
What is Antimony?
The Critical Mineral for a Secure & Sustainable Future
Antimony at Work
National Security Depends on Antimony
Everyday Technology Runs on Antimony
PPTA
PPTA
PPTA
At Stibnite, gold and antimony play different but complementary roles, working together within a single, integrated operation.
Gold is the primary economic driver of the Stibnite Gold Project. It supports the cost of operations, enables antimony production, and contributes to funding environmental restoration efforts. Beyond its role in the project, gold is widely used in electronics, aerospace, and medical technologies due to its conductivity and durability.
Antimony is a critical mineral used to fire ammunition, improve fire resistance in everyday materials, support semiconductor production, and unlock emerging energy technologies. Americans interact with antimony in everyday products daily, yet almost all of it comes from China and Russia. The U.S. produces virtually none of its own supply, which is why the federal government has designated antimony a critical mineral essential to national security.
Antimony
Antimony is essential to U.S. defense. It’s used in roughly 30% of all small and medium caliber munitions, as well as night vision goggles, infrared technologies, precision optics, and more. The U.S. Department of War has awarded Perpetua Resources $80 million to support domestic antimony development at Stibnite.
Antimony is used in electronics, wiring insulation, and flame-retardant materials found in everyday devices. With no active domestic production, U.S. demand has relied heavily on imports.
Antimony clarifies solar panels, strengthens hydro and wind components, and is an essential component in numerous emerging energy technologies. It plays a key role in the sustainable energy future.
China controls most of the world’s mined and processed antimony, and recent export restrictions have further limited global supply. In recognition of antimony’s key role to manufacturing and economic security, the U.S. Export-Import (EXIM) Bank in 2026 extended Perpetua more than $2 billion to finance the construction of the Stibnite Gold Project. With one of the largest identified reserves of antimony outside Chinese control, the Project helps provide the United States a path to mineral independence.
lb antimony reserve
Find reports, studies, and supporting documents related to the Stibnite Gold Project and its progress.