Resolution Minerals Ltd (ASX: RML) has accelerated progress at its flagship Horse Heaven Project in Idaho, appointing experienced mining leaders Steve Promnitz and Brett Lynch as Senior Strategic Advisers ahead of a fully permitted drilling campaign targeting critical minerals and gold.
The appointments further reinforce Resolution’s commitment to establishing itself as a major player in the US critical minerals sector, building on recent key milestones for the Horse Heaven project.
The company has received US Forest Service approval to drill up to 57 holes from 19 sites, with drilling set to commence in August 2025.
The initial campaign will focus on high-priority antimony, tungsten, gold, and silver targets at the historically significant Golden Gate area — representing the first new drilling at the project in over 30 years.
Promnitz and Lynch each bring exceptional track records in developing US-based mining operations for ASX-listed companies.
Steve Promnitz previously oversaw Lake Resources’s transformation from a $1 million explorer to a $3 billion lithium company, while Lynch played a key role in Sayona Mining’s growth, including the acquisition and restart of North American Lithium.
Their combined expertise will focus on advancing downstream infrastructure, commercialisation, US listings, and growth initiatives.
Promnitz emphasised the project’s scale and strategic appeal, stating: “RML’s Horse Heaven project has the urgently needed strategic minerals in a prime location with significant upside, as an extension to an adjoining major project.
“It may well be Stibnite 2.0. I’ve been on the lookout for the right critical minerals opportunity for some time that has size, scale, location, upside and a clear development path — and Horse Heaven meets this criteria.”
Lynch underlined the project’s advantageous positioning and sector timing, stating: “It’s clear that RML is uniquely placed to become one of the leading critical metals companies operating in the USA. With its history and proximity to Perpetua — one of the largest permitted antimony/gold mines in USA — it’s already off to a flying start.
“Combine this with extremely supportive White House policies for local production and record gold and antimony prices, it makes this the right project at the right time in my view.
“I look forward to helping steer this journey and creating extraordinary shareholder returns.”
Resolution Managing Director Ari Zaetz described the new appointments as a transformative step, stating: “The appointments of Steve Promnitz and Brett Lynch mark a significant inflection point for Resolution.
“These are two accomplished executives in the critical minerals space, each with a proven track record of creating billions in shareholder value through disciplined North American expansion.
“Their combined experience and networks will be invaluable as we scale Resolution into a North America-facing critical minerals growth story.”
The Horse Heaven Project’s historical production of antimony, gold, silver, and tungsten during both World Wars and the Korean War, combined with its proximity to Perpetua Resources’s US$2 billion Stibnite Antimony & Gold Mine, positions Resolution strongly within the domestic US supply chain for these strategic metals.
As Resolution Minerals embarks on this pivotal drilling campaign, it aims to confirm and expand known mineralisation, unlock new resources, and support efforts to rebuild the nation’s critical minerals capabilities.








