EXIM Bank Approves $2.9 Billion Loan to Develop Domestic Antimony Supply Chain at Idaho's Stibnite Gold Project

## EXIM Bank Backs $2.9 Billion Critical Minerals Project in Idaho The Export-Import Bank of the United States (EXIM) has approved a $2.9 billion loan to support the development of Perpetua Resources' Stibnite Gold Project in rural Idaho, marking one of the most significant domestic critical minerals financing decisions in recent years, according to a PR Newswire release dated May 21, 2026. The loan, issued under EXIM's 'Make More in America' initiative, is designed to bolster the domestic supply chain for antimony — a strategic mineral currently sourced almost entirely from foreign suppliers, most notably China. The Stibnite project is identified as the only known domestic reserve of antimony in the United States, making its development a matter of both economic and national security interest. ### Strategic Significance for Maritime and Defense Industries Antimony plays a critical role in a range of industrial and defense applications, including flame retardants, lead-acid batteries, and — of particular relevance to the maritime sector — the production of ammunition, naval vessel components, and specialized alloys used in shipbuilding and marine engineering. Securing a domestic supply reduces exposure to geopolitical supply chain disruptions that have increasingly affected procurement timelines across defense and commercial maritime programs. The combined financing, which pairs the EXIM loan with Perpetua Resources' own capital commitments, is expected to create hundreds of jobs in the rural Idaho region while positioning the United States to reduce its near-total dependence on imported antimony. ### Broader Context: Critical Minerals and Supply Chain Resilience The approval reflects a broader federal push to reshore production of minerals deemed essential to national infrastructure and defense readiness. For maritime industry stakeholders — including shipbuilders, naval architects, and procurement officers — the development of domestic antimony production could translate into more stable pricing and improved supply security for key materials over the coming decade. Perpetua Resources has indicated that the Stibnite project, once operational, would represent a transformative step in reducing U.S. vulnerability to foreign mineral supply disruptions. *Source: PR Newswire / Export-Import Bank of the United States, May 21, 2026.*