TSX-V: W
OTCQB: SPRMF
FSE: J03
Recorded on December 2, 2025.
In this Natural Resource Stocks company interview, host Steve Yang speaks with Brett R Marsh, President and Chief Executive Officer of Spartan Metals Corp, a US focused critical minerals explorer advancing the Eagle Tungsten Silver Rubidium Project in eastern Nevada. Spartan is building a district scale story around tungsten, rubidium, silver and other critical metals, aiming to position Eagle as a future domestic supply source for United States defense, technology and industrial users.
Brett explains why Eagle stands out as one of the highest grade historic tungsten districts in the United States. He walks through the past producing Tungstonia and Rees mines, surface exposures where the team can still sample the same veins mined in the nineteen forties and how historic production data, modern sampling and mapping all point to meaningful grade and scale. The discussion covers work on tailings, waste dumps and high priority targets that could support a modern resource and ultimately a potential restart concept if results continue to cooperate.
Steve and Brett then zoom out to the global critical minerals picture. They outline how tungsten underpins everything from industrial tooling and wear resistant components to armour systems and electric vehicles and how rubidium fits into next generation technologies such as quantum computing, AI hardware and high precision atomic clocks and guidance systems. With the United States heavily reliant on imports for both tungsten and rubidium, Brett explains why agencies like the Department of Defense and Department of Energy are paying closer attention to projects in tier one jurisdictions such as Nevada.
The conversation also touches on valuation, capital structure and comparables. Brett walks through how Spartan Metals trades today versus other tungsten and critical metal names, the company’s relatively tight share structure, the equity position held by Ridgeline Minerals and other cornerstone holders and how management is thinking about funding the work program. He also outlines the team’s experience across critical minerals, US government engagement and previous mine and project development in the Americas.
To close, Brett lays out a clear roadmap for the months ahead at Eagle, including follow up work from the Phase One exploration program, further characterization and potential drilling of historic tailings and the key technical and corporate milestones investors should watch for. If you follow critical minerals, US supply chain security or Nevada exploration, Spartan Metals and the Eagle Project are stories you may want on your radar. #Millettian
Company and Investor Links
Spartan Metals website
https://spartanmetals.com
Spartan Metals investor overview
https://investor.spartanmetals.com
Spartan Metals news and presentations
https://spartanmetals.com/news
Host Links Steve Yang Natural Resource Stocks
Website
https://www.NaturalResourceStocks.net
YouTube main channel
https://www.youtube.com/@NaturalResourceStocks
YouTube clips channel
https://www.youtube.com/@NaturalResoureStocksClips
X
https://x.com/TheSteveYang
LinkedIn
https://www.linkedin.com/in/thesteveyang/
Chapters
00:00 Intro, tickers and where Spartan trades
00:53 What Spartan Metals is building in US critical minerals
01:21 Why Nevada and the Eagle Project matter as a tier one jurisdiction
02:29 Historic tungsten production and high grade surface sampling at Tungstonia and Rees
04:12 China’s dominance in tungsten and why the US needs domestic supply
06:09 Interest and support from United States government agencies
07:28 Rubidium as a future facing metal for quantum, AI and defence
09:47 Other critical metals at Eagle including silver, indium, antimony and bismuth
11:01 Valuation versus tungsten and critical metal peers
12:57 Share structure, warrants and cornerstone holders
15:06 Management track record and why the team chose Eagle
18:30 Exploration roadmap and what investors should watch next
