Antimoine

[energy_isere]

Australia’s Locksley receives $190M EXIM funding interest for California antimony project

Staff Writer | November 3, 2025 |

Australia’s Locksley Resources (ASX: LKY) has received a letter of interest (LOI) from the US Export-Import Bank (EXIM) for a potential financing of $191 million in support of its antimony project in California.

Locksley’s Mojave project in Inyo County is host to a high-grade antimony prospect with historic samples grading up to 46%. The property is situated next to the only active US rare earths mine — MP Materials’ (NYSE: MP) Mountain Pass.

Antimony is a vital ingredient in many military applications as well as batteries and semiconductors. Currently, the US has no domestic source of antimony production, and therefore relies heavily on imports from China.

With the Mojave project, Locksley has aimed to establish the first domestic mine-to-market supply chain for antimony, addressing a critical gap where 90-95% of the refined supply comes from countries outside the US alliance network.

In August, the Australian explorer engaged Washington DC-based advisory group GreenMet to support the advancement of its project by positioning it within key US government initiatives under the Defense Production Act, Inflation Reduction Act and Department of Energy programs.

‘Cornerstone step’

The potential EXIM financing, says Locksley, is a cornerstone step toward broader US government funding, including programs under the Defense Production Act Title III and Department of War (DOW), reinforcing its strategy to establish a 100% American-made antimony.

“This LOI represents a cornerstone in Locksley’s engagement with US federal agencies and paves the way for detailed due diligence and underwriting to advance a comprehensive financing package for the Mojave project,” Locksley CEO Kerrie Matthews stated in a press release.

Matthews added that the LOI provides a foundation to progress formal financing discussions while advancing the company’s downstream and offtake plans.

“With our 100% American-made antimony ingot now produced, we are demonstrating Locksley’s capacity to deliver the next generation of US critical minerals for supply chains,” she said.

“EXIM’s letter of interest represents more than just financial support. It reflects a coordinated US government directive to rebuild domestic critical minerals capability,” Drew Horn, a former White House advisor on critical minerals and chief executive of GreenMet, said in the statement.

https://www.mining.com/australias-locks ... y-project/

Sur le site de Locksley Resources : https://locksleyresources.com.au/desert-antimony/

[energy_isere]

Prospect d'Antimoine (et d'or) en Australie :

Coonambula antimony gold drilling results reveal high grades in Queensland

November 11, 2025

art Mining, in partnership with Great Divide Mining (GDM), has reported the first high-grade antimony gold drilling results from the Coonambula antimony-gold project in Central Queensland, Australia.

The initial analytical results from the former Banshee high-grade antimony mine within the Coonambula project area confirm the high-grade antimony-gold resource, which will help accelerate drilling across the Banshee trend.

Dart Mining is advancing its initial drilling programme at Coonambula using its in-house rig.
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https://www.mining-technology.com/news/ ... s/?cf-view

[energy_isere]

Perpetua partners with Idaho National Lab to build antimony processing plant

Staff Writer | December 10, 2025

Perpetua Resources (Nasdaq, TSX: PPTA) partnered with the Idaho National Laboratory (INL) to host, commission and operate a flexible, modular pilot processing plant expected to be capable of recovering critical and defense-related minerals.


The initiative — part of the Battelle Energy Alliance — is intended to demonstrate the feasibility of producing high-quality, military specification antimony trisulfide using material from Perpetua’s Stibnite project at the INL site.

In October, the company began early works construction at its $1.3 billion Stibnite gold-antimony project in central Idaho, which was fast-tracked by the Trump administration as part US Army’s objective of establishing a fully domestic “ground-to-round” antimony trisulfide supply chain.

The pilot plant is part of a broader partnership between Perpetua and the US Army via the Defense Ordnance Technology Consortium (DOTC) to secure domestic sources of critical minerals and advance domestic defense mineral processing capabilities.

“This partnership highlights Idaho’s role in national security and demonstrates our ongoing commitment to responsible resource development, job creation, and workforce training in Idaho,” Perpetua’s CEO Jon Cherry said in a news release. “The successful demonstration of this plant will contribute to sustained growth in American mineral independence and resilience.”

The pilot plant leverages the critical and strategic materials and defense programs at INL — the US Department of Energy’s (DOE) lead lab for nuclear energy research. Once installed, it will receive samples of material from the Stibnite project, and operators will conduct pilot-scale testing to produce antimony trisulfide concentrate needed for munitions and advanced systems used by US military, Perpetua said.

In May 2025, Perpetua was awarded up to $6.9 million in additional DOTC funding, bringing the company’s total DOTC awards up to $22.4 million.

“As a longtime supporter of the Idaho National Laboratory and Perpetua Resources’ efforts in domestic antimony production, I am thrilled to see this partnership come together,” US House Representative Mike Simpson (R-Idaho) said in a statement.

“Idaho has the potential to provide our country with a domestic source of critical minerals that are essential to our national security needs. This partnership is a win for Idaho, and I am pleased to see our great state once again play such a pivotal role on the world stage.”

https://www.mining.com/perpetua-partner ... ing-plant/