What Red Mountain Mining does

Red Mountain Mining Limited is an ASX-listed (RMX) and OTCQB-listed (RMXFF) critical minerals and gold exploration company headquartered in West Perth, Western Australia, with a portfolio of 100%-owned exploration projects spanning the United States, Australia, and Canada. The company's stated strategic focus is on antimony and gold projects in jurisdictions aligned with Western supply chain policy, directly addressing the acute antimony supply shortage created by Chinese export restrictions and the resulting mobilization of US ($12B strategic minerals stockpile) and Australian (A$1.2B Critical Minerals Strategic Reserve) government funding. The flagship US assets include the Thompson Falls Antimony Project on the Montana-Idaho border (4.2km from the only operating US antimony smelter), the Utah Antimony Project (87 claims adjoining Trigg Minerals' Antimony Canyon), the Yellow Pine Antimony Project (within 2km of Perpetua Resources' Stibnite), the Silver Dollar Project in central Idaho, and the Pioneer Tungsten Project adjacent to Almonty Industries' Gentung deposit. Australian assets comprise the 391 km² Armidale Antimony-Gold Project in New South Wales and the Kiabye Gold Project in Western Australia, with the Fry Lake Gold-Copper Project in Ontario, Canada also in the portfolio.

The company's underlying technology consists of conventional mineral exploration techniques: geological mapping, soil and rock chip sampling, metallurgical testing, and drilling program development. Notable high-grade results include assays up to 36.5% Sb at Thompson Falls, 28.1% Sb at Oaky Creek, and 0.35m at 25.1g/t Au at the Flicka Zone. The leadership team combines capital markets expertise (Managing Director Lincoln Liu, 15 years of Australian equities experience) with Tier-1 technical credibility (Senior Technical Director Mark Mitchell, ex-De Beers; advisor Dr. Max Baker, ex-Newcrest and ex-Mount Isa).

Red Mountain Mining is pre-revenue and at the exploration and development stage, with no product pricing, no offtake agreements, and no operational sales. The business model is asset accumulation followed by eventual sale, joint venture, or offtake to larger mining operators or government counterparties; revenue generation would come from concentrate sales, royalty streams, or corporate transactions rather than ongoing product distribution. Marketing and stakeholder communications are conducted through ASX announcements, an online Investor Hub, and organic social channels (Twitter, LinkedIn). The company is led by a small team of 1-10 employees and had a $2.18M cash position as of February 2026, following a $1.5M oversubscribed placement in 2025.

Name

Red Mountain Mining

Legal name

Red Mountain Mining Limited

Website

https://redmountainmining.com.au

Company type

Public

Founded year

2006

Operating status

Operating

Headcount range

1–10 employees

Short description

Red Mountain Mining Limited is a pre-revenue ASX- and OTCQB-listed mineral exploration company advancing 100%-owned antimony, gold, tungsten, and lithium projects across the United States, Australia, and Canada, targeting Western critical minerals supply chain demand from government, defense, and semiconductor end-users.

Ownership category

akta.pro rank

Product category

Critical Minerals Exploration

NAICS

Mining (except Oil and Gas) (212), Support Activities for Metal Mining (213114)

SIC

Metal Mining (1000), Gold And Silver Ores (1040)

akta.pro primary industry

Exploration & Resource Development (Critical Minerals) (IMAKAFAL)

akta.pro secondary industry

Gold Mining (IMAKAEAA)

Keywords

• Antimony exploration
• Critical minerals
• Gold mining
• Tungsten exploration
• Mineral exploration

Headquarters

HQ city

Perth

HQ country

Australia

HQ region

Oceania

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Operations, Personnel, Technology or R&D, Marketing or Sales

Distribution channels1 record

Marketing channels4 records

Core offering

Red Mountain Mining is a critical minerals and gold exploration company that acquires and advances early-stage antimony, gold, tungsten, and lithium exploration projects in Australia, the United States, and Canada. The company focuses on high-grade antimony targets to address Western supply shortages caused by Chinese export restrictions, with a portfolio of 100%-owned drill-ready projects positioned near major deposits and processing infrastructure. The company is pre-revenue and seeks eventual offtake agreements, joint ventures, or sale of project interests to mining companies and government entities.

Product overview

Red Mountain Mining is a dual-listed (ASX:RMX | OTCQB:RMXFF) critical minerals and gold exploration company with a portfolio of exploration projects across Australia and the United States. The company's project portfolio includes: in Australia, the Armidale Antimony-Gold Project in New South Wales and the Kiabye Gold Project in Western Australia; in the USA, the Thompson Falls Antimony Project (Montana-Idaho border), Utah Antimony Project, Yellow Pine Antimony Project, Silver Dollar Project, Pioneer Tungsten Project, and Lithium exploration projects (Lithic and Mustang) in Nevada. The company is focused on acquiring and advancing high-grade antimony and gold projects in strategically important jurisdictions, targeting critical minerals essential for Western defence capability, AI supply chains, and modern energy infrastructure.

Differentiator

Problem solved

Functional benefit

Products and services

• Armidale Antimony-Gold Project A 100%-owned antimony-gold exploration project covering 391 km² within the Southern New England Orogen in northeastern New South Wales, Australia. Contains the Oaky Creek prospect with multiple high-priority drill targets and is recognised as Australia's premier antimony province, approximately 100km west of the Hillgrove project (Australia's largest known antimony deposit).
• Thompson Falls Antimony Project An antimony exploration project on the Montana-Idaho border, USA, located 4.2km from United States Antimony Corporation's only operating antimony smelter. Initial assays returned up to 36.5% Sb. Acquired in February 2026 for $158,000.
• Utah Antimony Project An antimony exploration project comprising 87 claims located 11 km east of Antimony, Utah, directly adjacent to Trigg Minerals' Antimony Canyon Project, one of the largest and highest-grade antimony projects in the USA.
• Yellow Pine Antimony Project An antimony exploration project within the Stibnite Mining District in Idaho, USA, located within 2km of Perpetua Resources' Stibnite Gold-Antimony Project, which hosts Proven and Probable Mineral Reserves of 4.8Moz gold and 148Mlbs antimony and has received final federal clearance for construction.
• Silver Dollar Project An antimony-gold exploration project in central Idaho, USA, including the historical Silver Dollar Mine with documented antimony and gold mineralisation. Historical production from the 1940s reported average ore grades of 17.7% Sb.
• Pioneer Tungsten Project A 100%-owned tungsten exploration project in the Pioneer Mountains of southwest Montana, USA, positioned directly adjacent to Almonty Industries' Gentung Tungsten Deposit (6.83Mt @ 0.315% WO3), with Almonty targeting production by H2 2026 at 1,400t WO3 per year.
• Lithic Lithium Project A lithium exploration project located 29 km north of Silver Peak, the only operational lithium producing mine in the United States.
• Mustang Lithium Project A lithium exploration project located on the south-eastern flank of the hydrologically closed Monte Cristo Valley in Nevada, 40 km east of American Lithium's TLC deposit.
• Kiabye Gold Project A gold exploration project comprising 4 exploration licenses covering the central portion of the Kiabye Greenstone Belt in the Yilgarn's Murchison Domain, southeast of Mount Magnet, Western Australia.
• Fry Lake Gold-Copper Project A 100%-owned gold-copper exploration project in Ontario, Canada, under strategic partnership with Fladgate Exploration. Channel sampling at the Flicka Zone returned exceptional high-grade gold assay results including 0.35m at 25.1g/t Au.

Quantifiable outcome

• Up to 36.5% Sb assay results at Thompson Falls
• +3 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Five partnerships are on record, tiered core.

• Fladgate ExplorationcoreStrategic or Co-development PartnerStrategic partnership for Fry Lake Gold-Copper Project in Ontario, Canada. Fladgate Exploration accepted RMX shares as partial consideration for services, indicating a co-development arrangement. Supported by extensive soil and rock chip sampling across four priority target areas totaling over 1,000 samples.
• United States Antimony Corporation (UAMY)coreStrategic or Co-development PartnerThompson Falls project located 4.2km from UAMY's Thompson Falls Smelter, the only operating antimony smelter in the USA. Development pathway de-risked by proximity to active operation. UAMY restarted mining at Stibnite Hill in late 2025, demonstrating active production capability.
• Trigg Minerals (ASX:TMG)coreStrategic or Co-development PartnerUtah Antimony Project directly adjoins Trigg Minerals' Antimony Canyon Project, one of the largest and highest-grade antimony projects in the USA with defined Exploration Target of 12.8-15.6 Mt @ 0.75-1.5% Sb. Antimony-bearing Flagstaff Formation and controlling structures extend into RMX's ground.
• Almonty Industries (NASDAQ:ALM / TSX:AII / ASX:AII / Frankfurt:ALI1)coreStrategic or Co-development PartnerPioneer Tungsten Project positioned directly adjacent to Almonty's claims hosting the 6.83Mt @ 0.315% WO3 Gentung Tungsten Deposit. Almonty targets production by H2 2026 at 1,400t WO3 per year. Same granodiorite-limestone contact provides parallel development pathway. Almonty market cap ~A$7.8b.
• Perpetua Resources (Nasdaq/TSX:PPTA)coreStrategic or Co-development PartnerYellow Pine Antimony Project lies within 2km of Perpetua's Stibnite Gold-Antimony Project, which hosts Proven and Probable Mineral Reserve of 4.8Moz gold and 148Mlbs antimony. Perpetua received final federal clearance for construction, indicating regulatory support for the district.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Almonty Industries: Multi-asset tungsten developer (NASDAQ:ALM, TSX:AII, ASX:AII) whose Gentung Tungsten Deposit (6.83 Mt @ 0.315% WO3, H2 2026 production target) adjoins RMX's Pioneer Tungsten Project in Montana. Closest direct critical-minerals peer with comparable US critical-minerals positioning.
• Larvotto Resources: ASX-listed developer of the Hillgrove Antimony-Gold Project in NSW — the largest known antimony deposit in Australia and the same Southern New England Orogen province as RMX's Armidale project. Closest Australian antimony-gold peer.
• Perpetua Resources: Developer of the Stibnite Gold-Antimony Project in Idaho, located within 2 km of RMX's Yellow Pine project. Directly comparable antimony-gold peer at a more advanced stage (P&P reserves, federal construction clearance), setting the benchmark for the Stibnite Mining District.
• Investigator Resources: ASX-listed silver and critical-minerals explorer with the Paris Project in South Australia, a high-grade silver play with antimony credits. Comparable ASX micro-cap critical-minerals peer targeting Western supply security.
• United States Antimony Corporation: Operates the only producing antimony smelter in the U.S. (Thompson Falls), 4.2 km from RMX's Thompson Falls project, and restarted mining at Stibnite Hill in late 2025. Functions as both strategic neighbour and likely off-taker for RMX's concentrate.
• Trigg Minerals: ASX-listed antimony explorer whose Antimony Canyon Project adjoins RMX's Utah Antimony Project, with a published Exploration Target of 12.8-15.6 Mt @ 0.75-1.5% Sb. Closest direct peer on the same geological trend at a similar stage.

Emerging players

• Mitre Mining Corporation: Early-stage ASX-listed antimony and gold explorer with assets in NSW, directly comparable to RMX's Australian antimony-gold portfolio in scale and stage.
• Sky Metals: ASX-listed tin-tungsten-antimony-copper explorer with NSW projects in the New England Orogen. Comparable jurisdiction and commodity mix to RMX's Armidale and Kiabye projects.
• American Lithium: Developer of the TLC lithium deposit in Nevada, located ~40 km from RMX's Mustang Lithium project. Comparable U.S. critical-minerals (lithium) exploration peer in the same region.

Broad incumbents

• Nova Minerals: ASX-listed diversified critical-minerals developer with gold and antimony by-products at its Estelle Project in Alaska. Broader-portfolio peer with greater scale and resource definition than RMX.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/redmountain_asx
• LinkedInlinkedin.com/company/red-mountain-mining-limited

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Red Mountain Mining