Resolution Minerals Advances Horse Heaven Project Amid Antimony Crisis

Antimony Crisis Fuels Opportunity for Resolution Minerals' Horse Heaven Project

Resolution Minerals (ASX:RML | OTC:RLMLF) has positioned itself as a key player in addressing America's critical minerals shortage with its strategically located Horse Heaven Project in Idaho. As antimony prices surge to $60,000 per tonne and supply chains face unprecedented pressure, RML offers investors exposure to a compelling critical minerals opportunity with significant gold and silver upside.

High-Grade Critical Minerals in America's Backyard

The Horse Heaven Project has revealed exceptional grades across multiple commodities that are vital to U.S. national security and green technology applications:

• Antimony: Rockchip samples returning up to 49.8% Sb
• Silver: Values as high as 1,420 g/t Ag
• Gold: Samples containing up to 4.43 g/t Au
• Tungsten: Historical production of 1.5-2% WO3

What makes this project particularly significant is its location adjacent to Perpetua Resources' fully permitted Stibnite Gold-Antimony Project, which boasts a market capitalisation of $2.9 billion. The geological similarities between the two properties suggest Horse Heaven could represent a "mirror image" of Stibnite's mineral system.

The Antimony Supply Crisis

Antimony has emerged as one of the most strategically critical minerals for the United States:

• No domestic production currently exists in the U.S.
• China controls over 80% of global processed antimony supply
• China has banned exports to the USA since December 2024
• Prices have surged nearly 5x in two years to $60,000/tonne

The mineral is indispensable for military applications including ammunition, missiles, and night vision technology, while also being vital for flame retardants, solar panels, and battery technology.

"The fundamental vulnerability of antimony supply chains remains a long-term concern for industries dependent on this critical mineral" – J. Zadeh, Discovery Alert, June 2025

Understanding Antimony's Strategic Importance

Antimony is a silvery-white metalloid element that has been designated as a critical mineral by numerous governments worldwide due to its limited production sources and essential applications. The element's primary ore mineral is stibnite (Sb₂S₃), which can contain up to 71.4% antimony by weight.

In military applications, antimony is used as a hardening agent in lead alloys for bullets and shrapnel shells, and as a component in infrared detectors and night vision equipment. Its flame-retardant properties make it essential for civilian applications in plastics, textiles, and electronics.

Global supply disruptions have been compounded by China's dominance of the market and recent export restrictions, creating an urgent need for secure domestic supply chains in Western nations.

Two High-Potential Target Areas

The Horse Heaven Project features two primary targets with substantial historical production and exploration potential:

Antimony Ridge

Recent exploration has revealed exceptional high-grade antimony mineralisation over a large footprint:

• 1,000m x 700m mineralised zone identified through soil sampling
• Historical production of over 1,000 tonnes of 45-46% antimony concentrate
• Recent rockchip sample 730253 returned 49.8% Sb, 1,420 g/t Ag, and 3.12 g/t Au
• More than 60% of rock samples contain >1 g/t Au along 500m of historical trenching

Golden Gate

Drilling is currently underway at this gold-tungsten-antimony target:

• Historical drilling returned significant intercepts like 36.6m @ 1.51 g/t Au
• Historical tungsten production of over 2,000 tonnes of 1.5-2% WO3
• Heap leaching potential for oxide gold mineralisation
• Non-compliant historical resource estimate of 100,000-300,000 oz Au

Pathway to Production and Full US Supply Chain

Resolution Minerals is uniquely positioned to help solve America's antimony supply crisis by developing a complete domestic supply chain. The company is:

• Conducting fully permitted drilling with a resource upgrade planned for 2026
• Engaging in preliminary offtake and processing discussions
• Reviewing test work and processing options for antimony and tungsten stockpiles
• Exploring technologies to adjust existing processing facilities for antimony production

"For national security, domestic antimony production must be maximised" – A. Gustafson, The Heritage Foundation

Strong Government Support for Critical Minerals Projects

The U.S. government has demonstrated its commitment to developing domestic critical minerals supply:

• The Department of Defense invested $59 million in the adjacent Stibnite project
• US EXIM bank is considering a $2 billion construction debt facility for Stibnite
• White House executive orders in March 2025 highlighted the threat to national security from mineral import restrictions
• The Defense Production Act has allocated funds for critical minerals investments

This government support is likely to accelerate permitting timelines and provide potential funding opportunities for strategic projects like Horse Heaven.

Experienced Leadership Team

Resolution Minerals has assembled an experienced team with over 100 years of combined experience relevant to the Horse Heaven Project:

• Craig Lindsay (CEO, US Operations): Over 30 years in M&A and corporate development
• Bill Breen (Technical Lead): 40+ years in senior leadership roles across North America, with 15+ years at Horse Heaven
• Austin Zinsser (Lead Consulting Geologist): Spent 12 years as Senior Resource Geologist at Perpetua's Stibnite Project
• Eric Klepfer (US Permitting Specialist): 30+ years providing Idaho-based permitting services

The team's extensive experience with both the Horse Heaven Project specifically and the broader Idaho mining environment positions the company to efficiently advance the project.

Financial Position and Path Forward

Resolution Minerals is well-positioned financially with:

• $25.1 million recently raised from global strategic institutions
• Fully funded medium-term work programs
• Engagement of Roth Capital Partners for NASDAQ listing pursuit
• Current market value of approximately A$75 million

The company's recent capital raise included participation from John Hancock's Family Office, Astrotricha Capital SEZC, and S3 Consortium, providing a strong financial foundation for upcoming exploration and development activities.

Why Investors Should Follow Resolution Minerals

Resolution Minerals offers a compelling investment opportunity at the intersection of critical minerals, precious metals, and national security:

1. Strategic critical minerals exposure with antimony prices at historic highs
2. Prime location adjacent to a $2.9 billion fully permitted gold-antimony project
3. Exceptional grades across multiple commodities including antimony, gold, silver, and tungsten
4. Precious metals upside with gold at $3,600/oz and silver at $42/oz
5. Strong government support for domestic critical minerals development
6. Clear pathway to potentially developing a full domestic antimony supply chain
7. Well-funded for upcoming exploration and development activities

In a world where supply chains for critical minerals are increasingly vulnerable to geopolitical tensions, Resolution Minerals offers investors exposure to what could become a vital link in America's domestic supply of these strategic resources.

Ready to Capitalise on the Antimony Opportunity?

Discover how Resolution Minerals is positioned to become a key player in America's critical minerals supply chain while offering significant gold and silver upside. With exceptional antimony grades, strategic location and strong government support, RML presents a compelling investment case at the intersection of national security and resource development. Visit Resolution Minerals' website to learn more about their Horse Heaven Project and how you can be part of this exciting opportunity.