Resolution Minerals Ltd (ASX: RML; OTCQB: RLMLF) (“Resolution Minerals” or “Company”) has announced a major expansion of its Phase 1 drill program at the Horse Heaven Project in Idaho, USA. The Company applied for and received an Amendment that extends the ongoing Phase I Drill program from September to the end of October. The Company has received approval to expand its drilling season by one month, enabling the drilling of an additional 8-10 holes. This expansion effectively doubles the ongoing program to 18–20 holes, covering about 18,000ft (5,490m).
Mr. Craig Lindsay, the Company’s CEO of US Operations, said, “The Amendment is a significant development for Resolution Minerals and its stakeholders. We’ve now secured material extension for our Phase I drilling program, including more meters and more holds, and increased our land package to cover additional areas of potential mineralisation.”
Strengthening Exploration with RC Drilling
The Company will complete its current Core rig operations on 30 September 2025. The drilling will shift to reverse-circulation (RC) drilling from October. The Company has secured an MP1500 RC rig. The new drill will be on-site on 1 October 2025. The change allows additional infill and step-out RC drilling and provides broader data coverage, which is beneficial for next year’s Phase II drilling.
Figure 1: Drill Core Location Map of the Phase I Drilling Program.
Mr. Craig Lindsay also commented, “The Amendment will generate a significantly higher level of drilling data to guide next season’s program, future resource estimates, and permitting for an expanded exploration program.”
Expanding Project Area
The Company has completed all necessary fieldwork and paperwork to acquire additional land at Horse Haven. The Company has expanded its land package by 600 acres through the staking of 30 new federal lode claims. With this addition, the Horse Haven Project now spans 14,580 acres (59 km2), within the Boise National Forest. The land expansion strengthens the Company’s control over prospective ground in the historic Yellow Pine Mining District.
Figure 2: Location of the Additional 600 Acres Acquired at Horse Haven.
The Company identified the recently expanded land position through a coordinated district-scale exploration program. The program identified the land to potentially host mineralisation. The land will be the subject of early-stage field programs in Fall 2025.
Attracting International Attention
The Yellow Pine Mining District is attracting an increasing level of global interest due to the adjacent Stibnite Gold Project. The Stibnite Gold Project, operated by Perpetua Resources Corp. (Nasdaq: PPTA, TSX: PPTA), is expected to produce 35% of USA’s annual Antimony demand. In addition, the Stibnite Gold Project will also produce 450,000 ounces of gold per year.
Figure 3: Horse Haven Project Location and Proximity to the Stibnite Gold-Antimony Mine of Perpetua Resources Corp.
The Company’s Horse Heaven Project is located only 6 kilometres west of the fully permitted Stibnite Gold Project. This proximity highlights the region’s geological potential and underpins investor interest. Hence, the Company will regularly review its land holdings and identify areas with exploration potential adjacent to its claim to increase its interests. The Company’s expansion signals its intention to establish a district-scale footprint.
Figure 4: Strategic Potential of Yellow Pine Mining District, Idaho, USA.
The Yellow Pine Mining District and its adjacent projects are also attracting attention because of their strong potential to meet rising global demand for metals. The global demand for gold, antimony, silver, and tungsten remains strong. Antimony, in particular, is considered a critical mineral for defence and energy applications. According to the US Geological Survey, China controls more than 70% of global antimony supply. Therefore, Projects like Horse Heaven are vital for diversifying supply chains.
Meanwhile, the global tungsten market is projected to grow at a CAGR of 4.7% between 2024 and 2030, reaching USD 2.84 billion by 2023. This growth is driven by demand in the automotive and electronics sectors. This growing demand strengthens The Company’s position in the market.
Golden Gate Target Progress
The Company has completed over 7,320ft (2,231m) of core drilling across nine holes at the Golden Gate target. Three holes have been submitted for assay, with results expected within four weeks. Early drilling success encouraged the Company to seek the extended drill program. Evolve Exploration Inc., the Company’s drilling contractor, is on-track to complete 9,000ft of drilling by 30 September 2025.
Investor Outlook
Resolution Minerals Ltd (ASX: RML; OTCQB: RLMLF) is currently trading at $0.044, giving the Company a market capitalisation of $58.10 million. The stock has traded within a 52-week range of $0.007 to $0.093. The Company’s decision to double its drill program and expand its land holdings demonstrates confidence in Horse Heaven’s potential. The Company’s proximity to major projects and exposure to gold, antimony, silver, and tungsten further support its long-term value proposition. By advancing exploration aggressively and positioning itself in a critical minerals-rich district, the Company is well-placed to benefit from the rising global demand.
