Red Mountain Mining LimitedR
Red Mountain Mining Limited (ASX: RMX, incorporated 2006, Subiaco WA) is a multi-jurisdiction critical-minerals and gold explorer/developer spanning the United States and Australia. Its live 2026 headline asset is the Thompson Falls Antimony Project on the Montana-Idaho border, just 4.2km from America's only antimony smelter -- exploration results reported exceptional antimony grades averaging 8.7% with peak assays of 47.3% Sb. The broader US portfolio includes the Utah Antimony District project, the Yellow Pine and Silver Dollar Antimony/Silver projects (Idaho), Lithic and Mustang lithium projects (Nevada), and a Pioneer Tungsten Project under systematic exploration. In Australia the company holds the Armidale Antimony-Gold Project (NSW) and Kiabye gold project (WA); in Canada, the Fry Lake gold project.
Notable vs. Peers
- Trading within 4% of its 52-week low — weak recent price momentum.
Lifecycle Milestones
Jurisdiction (40%)8/10
Montana: Fraser PPI 2025 is 69.00 of 100 (rank 40 of 68), which maps to 8 on this site's scale. The flagship Thompson Falls antimony project is in western Montana, near the Idaho border; the company also holds gold-antimony ground in New South Wales and Western Australia and gold ground in Canada. Montana has US rule of law, but mining executives rate its policy climate below the leading western states such as Nevada, Arizona and Utah.
Infrastructure (40%)No verified figure
Researched with nothing found: no source we could cite confirms or rules out an existing mill, road access, grid power, or tailings facility at Thompson Falls Antimony Project, Montana-Idaho border, USA (checked Oct 1, 2026; recheck due Mar 30, 2027). Counts at a neutral 5/10 until one does.
Nearby producing mine (20%)Not yet researched
No project coordinates on file yet, so distance to a producing mine can't be measured.
Acquisition Susceptibility
A relative ranking of how closely this company matches the profile of juniors that have actually been acquired — not a probability, and not a reason to buy. Acquisitions are rare: only a few dozen significant deals happen a year across a universe of thousands of juniors, so even a high score here describes a long shot. The strongest signal in the research, a producer that already owns part of the company, is scored from its disclosed strategic shareholders. A producer that is a joint-venture or earn-in partner on the project, rather than a shareholder, isn't captured yet.
How this score is built
- Disclosed pending dealSub-score: Not scored
No pending acquisition or merger disclosed (checked)
Not scored: having no deal in flight isn't held against a company.
Weight 26.25% - Producer's strategic stakeSub-score: Not scored
No producer holds a disclosed stake on file (holder register researched) See holders
Not scored: most juniors that do get bought had no prior toehold, so a missing stake says little either way.
Weight 25% - Distance to a producing mineSub-score: Not yet researched
Distance not yet researched: no project coordinates on file
Distance can't be measured without coordinates, so excluded rather than counted as far.
Weight 22.5% - Lifecycle stageSub-score:1/10
Stage: Grassroots Exploration
Feasibility and permitting score 10, where deals cluster, and production 5.5; earlier stages score less, down to 1 at grassroots.
Weight 15% · 57% here - JurisdictionSub-score:8/10
United States: jurisdiction score 8/10
Our jurisdiction score, used as is: higher means lower political and permitting risk.
Weight 6.75% · 26% here - CommoditySub-score:2/10
Primary commodity: Other
Gold 10, copper 8, silver 5, nickel and uranium 4, others 2: most majors' deals are for gold.
Weight 4.5% · 17% here
Weight is each input's share of the full score. “Here” is its share of this company's score: inputs that aren't scored are left out and the rest re-weighted, never counted as zero.
Your Rankings
Management Team
Non-Executive Chairman of Red Mountain Mining Limited (ASX: RMX). Chartered Accountant (CA) and member of the Governance Institute of Australia (GIA), specialising in corporate advisory, company secretarial and financial management services. Spent 7 years at the ASX and began his career at Ernst & Young's Perth office in assurance. Source: redmountainmining.com.au/corporate/rmx-team/ and /corporate/directory/.
Managing Director of Red Mountain Mining Limited (ASX: RMX). Has advised mining companies across various commodities and worked 15 years in Australian equities markets, with a background in trading, research and investment banking including capital raising and M&A transactions; founded a Sydney corporate advisory firm serving the mining and technology sectors. Bachelor's degree, Western Sydney University; Master of Commerce (Finance), University of New South Wales; MBA, University of Sydney. Source: redmountainmining.com.au/corporate/rmx-team/ and /corporate/directory/.
Non-Executive Director of Red Mountain Mining Limited (ASX: RMX). Spent 20 years in business analysis and management at companies including BHP, Kraft Foods and Mitre 10, and since 2006 has provided corporate advisory services drawing on experience in business management, project evaluation and capital raising across various sectors. Qualified accountant with over 20 years of CPA Australia membership; previously served on the boards of several ASX-listed companies. Source: redmountainmining.com.au/corporate/rmx-team/ and /corporate/directory/.
Director, Corporate Development of Red Mountain Mining Limited (ASX: RMX) -- an executive role; RMX's own corporate directory lists only three board members (Piccini, Liu, Parton). Mechanical engineer and finance professional with over 17 years of experience in the resources sector, including engineering and consulting for Tier 1 mining companies. Currently also a Non-Executive Director at Temas Resources Limited, and previously led Pinnacle Minerals and Heavy Minerals. Holds engineering and finance credentials including AICD graduate status. Source: redmountainmining.com.au/corporate/rmx-team/.
Senior Technical Director of Red Mountain Mining Limited (ASX: RMX) -- an executive role; RMX's own corporate directory lists only three board members (Piccini, Liu, Parton). Accomplished geologist with over 40 years of continuous experience in global mineral exploration, specialising in diamonds, rare earth elements, lithium, gold and base metals. Spent 24 years with De Beers Australia, rising to Exploration Manager and Director, and later served as CEO and Technical Director for multiple ASX-listed companies. Registered Professional Geoscientist. Source: redmountainmining.com.au/corporate/rmx-team/.
Advisory Board Member of Red Mountain Mining Limited (ASX: RMX). Distinguished exploration geologist with over 40 years of international experience across Australia, the Americas, Europe and Asia. Co-founder and Vice President of Exploration for Integra Resources, advancing the DeLamar and Florida Mountain projects; background includes Chief Geologist roles at Newcrest Mining Limited and at Mount Isa Mines. Source: redmountainmining.com.au/corporate/rmx-team/.
Insiders, Investors & Smart Money
Notable shareholders and insiders whose involvement is worth knowing about, plus what we're seeing from institutional/large-investor activity.
No smart-money tracking (institutional/large-investor activity) for this miner yet — this is a planned feature, not live data.
No notable insiders tracked for this miner yet.
Reports, Presentations & Documents
Red Mountain Mining is a critical-minerals and gold explorer with projects in the United States, Australia and Canada. Its main focus is the Thompson Falls antimony project on the Montana-Idaho border, 4.2km from the only antimony smelter in the United States, where exploration results averaged 8.7% antimony with assays of up to 47.3%. Its wider portfolio includes antimony projects in Utah and Idaho, lithium projects in Nevada, a tungsten project, the Armidale antimony-gold project in New South Wales, where drilling was completed in September 2026, the Kiabye gold project in Western Australia and the Fry Lake gold project in Canada. No JORC or NI 43-101 resource has been estimated on any of its projects.