Perpetua Resources (TSX:PPTA, NASDAQ:PPTA) has advanced significantly towards securing substantial US government financial backing for its Stibnite gold-antimony project, situated in Idaho. On Tuesday, March 31, the Export-Import Bank of the US (EXIM) formally moved a proposed US$2.7 billion loan package to Congress for review, marking a critical step in the project’s development.
The comprehensive financing package includes a direct loan component of approximately US$2.2 billion, specifically designed to cover capitalized interest and associated fees. Perpetua Resources has indicated that a final vote on the loan is anticipated shortly after the congressional review period concludes, signaling the imminent potential for a definitive financial commitment.
Financial Framework and Project Capitalization
Should the EXIM loan receive congressional approval, the US$2.7 billion financing, when combined with Perpetua’s US$714 million in cash on hand at year-end, would fully address the Stibnite project’s estimated US$2.576 billion capital cost. This robust funding structure is also projected to cover ongoing exploration and corporate expenditures, providing a clear path to full project capitalization.
Jon Cherry, CEO of Perpetua Resources, underscored the significance of this development in a press release, stating, “Today’s decision marks the final phase of EXIM approval.” He further elaborated on the company’s engagement, noting, “We’ve worked diligently with US EXIM for over two years on a financing solution aimed at strengthening America’s supply chains, creating jobs right here at home, and fortifying national security.”
This advancement keeps Perpetua on schedule for a final investment decision later in the current year. The company also anticipates potential loan drawdowns in the second half of 2026, contingent upon the successful completion of the approval process and definitive documentation.
Strategic Importance and Critical Mineral Supply
The Stibnite project is strategically positioned as a vital domestic source for both gold and antimony. Antimony, in particular, holds significant classification as a critical mineral in the United States, primarily due to its indispensable role in advanced defense systems and emerging energy technologies. Perpetua projects that the Stibnite asset will become the sole domestic mined source of antimony, a factor that aligns directly with the objectives of EXIM’s ‘Make More in America’ program, which aims to bolster domestic manufacturing and supply chains.
Enhanced Project Economics and Development Progress
Updated economic figures published alongside the EXIM confirmation indicate strengthened returns for the Stibnite project, largely driven by more favorable long-term gold price assumptions. At a gold price of US$3,250 per ounce, the project demonstrates an after-tax net present value (NPV) of US$3.5 billion at a 5 percent discount rate, alongside an internal rate of return (IRR) of 23.5 percent. Under a higher gold price scenario of US$4,500 per ounce, the after-tax NPV escalates to US$6.1 billion, with the IRR reaching 32.3 percent.
A revised technical report, incorporating engineering work completed throughout 2025, indicates that the project was approximately 45 percent engineered as of year-end. Perpetua has already initiated key aspects of project execution, with early works construction commencing in October 2025. This phase followed the successful receipt of all major permits and the posting of construction-stage financial assurance with relevant federal and state agencies, demonstrating tangible progress on the ground.
Private Capital Support and Strategic Partnerships
Beyond the significant government backing, the Stibnite project has also garnered substantial support from private capital. Last year, Perpetua successfully raised more than US$850 million in equity. This included a notable US$255 million strategic investment from Agnico Eagle Mines (TSX:AEM, NYSE:AEM) and JPMorgan Chase (NYSE:JPM). Furthermore, the Canadian miner, Agnico Eagle, committed an additional US$180 million for common shares, accompanied by warrants, and has pledged to collaborate with Perpetua through a dedicated technical and exploration advisory committee, reinforcing the strategic nature of their partnership.
The advancement of the EXIM loan to congressional review represents a pivotal moment for Perpetua Resources and the Stibnite project. With both government and private sector financing converging, the project is poised to significantly contribute to America’s critical mineral supply chains and national security objectives, moving closer to a final investment decision that could reshape domestic resource production.
