Perpetua Resources secures $2.9 billion US loan for Idaho gold, antimony project

What's the deal? Perpetua Resources has secured a $2.9 billion loan from the US government to develop its Stibnite Gold Project in central Idaho. The mine would produce both gold and antimony — a critical mineral used in defence applications, batteries, and flame retardants.

Why now? Antimony has become a flashpoint in the growing competition between the US and China over critical mineral supply chains. China dominates global antimony production and recently tightened export controls on the mineral, raising alarm in Washington about supply security for defence and industrial uses. The US loan signals a push to build domestic sources of strategically important materials.

What could go wrong? Large-scale mining projects in the American West often face permitting delays, environmental opposition, and cost overruns. The Stibnite site sits in a remote, ecologically sensitive part of Idaho, and the project has drawn scrutiny from conservation groups concerned about impacts on salmon habitat and water quality. A $2.9 billion government-backed loan also carries political risk if the project stumbles or timelines slip.

The signal: The deal reflects a broader trend of Western governments using public financing to secure domestic supplies of critical minerals. As geopolitical tensions reshape global supply chains, expect more mega-loans and subsidies aimed at reducing dependence on Chinese-controlled commodities — particularly those with military applications.