The provincial government of New Brunswick has initiated a competitive expression-of-interest to find a private developer for the dormant Lake George mine, located about 30 kilometres west of Fredericton. A historical technical report estimates roughly 800,000 tonnes of antimony-bearing ore remain on site, which at current market metrics translates to an estimated in-situ value of about US$933 million to US$1.05 billion. The term in-situ value here refers to the raw, in-place worth of the metal before extraction costs, processing and permitting are applied.
Provincial officials frame the solicitation as part of a broader effort to rekindle mining activity and attract capital under a new mineral strategy, and they stress the strategic importance of secure supplies of critical minerals. Natural Resources Minister John Herron has highlighted the need for domestically sourced, responsibly produced materials in light of shifting global supply dynamics. The government notes the site operated intermittently from 1876 until closure in 1996 and that any reactivation will require an updated resource estimate and a formal exploration agreement before mineral rights are assigned. Submissions will be accepted until May 4, with an evaluation period expected through early June.
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Site potential and exploration interest
Interest is already emerging from the junior sector. British Columbia-based Hertz Energy has said it plans to submit an aggressive bid, pointing to its ownership of the mine’s historical geological and technical database as a competitive advantage. That archive consolidates decades of drilling and exploration records, including data that underpinned a 2014 mineral resource estimate, providing a foundation for planning and follow-up work. Hertz has also staked surrounding mineral claims and outlined a program of diamond drilling designed to test extensions of known mineralized zones and upgrade confidence in the deposit.
Why antimony matters now
The renewed focus on Lake George dovetails with a rising strategic profile for antimony. Historically used in flame retardants, antimony is increasingly important for applications in energy storage, solar technology and defense systems such as munitions and night-vision equipment. Global production has been concentrated in a few countries — notably China, Russia and Tajikistan — which together have supplied the vast majority of output and left Western markets exposed to interruptions. That vulnerability became more evident when a recent policy move by China halted exports to the United States, contributing to a price spike roughly to US$50,000 per ton and renewing interest in alternative sources.
Parallel development: Lode Gold and the Fremont Mine
At the same time, another junior miner is advancing a separate revival in California. Lode Gold completed transfer of the MSHA individual identification number (MIIN) for its wholly owned Pine Tree Josephine, also known as the Fremont Mine, a regulatory step that confirms ownership and operational responsibility with the Mine Safety and Health Administration. Lode Gold is engaging potential partners and investors to assemble the technical, operational and financial resources needed to reactivate the site in a safe and sustainable manner. The company lists upcoming catalysts including channel sampling and drilling in 2026 to upgrade resources to measured and indicated under NI 43-101 standards, and the completion of a pre-feasibility study (PFS) and metallurgy work in 2026.
Project context and infrastructure
The Fremont project is a brownfield asset with substantial prior work: over 43,000 metres of drilling, roughly 23 kilometres of underground workings, and multiple adits, plus nearby access to power, water and transport routes. A recently published 2026 mineral resource estimate indicates significant remaining endowment — reportedly only about 8% of the quantified resource has been previously extracted — and the deposit remains open on strike and at depth, with notable step-out holes returning mineralized intervals.
Investment outlook and next steps
For Lake George, the immediate timeline is clear: the province will review proposals after the May 4 submission deadline, with evaluation extending into early June. Potential developers face several preparatory requirements, including an updated resource estimate, detailed exploration plans, permitting, and community engagement. Interested companies such as Hertz Energy and others must weigh technical risk, financing needs and the evolving market for antimony. Observers should also watch Lode Gold’s 2026 and 2026 milestones, since progress on both projects may influence investor appetite for critical-mineral ventures and contribute to a broader reshaping of supply chains.
What to watch
Key indicators in coming months will include the government’s choice of exploration partner, any early-phase drilling results from the Lake George area, Hertz Energy’s formal bid details, and scheduled technical updates from Lode Gold. Together these developments will help determine whether dormant assets in established mining jurisdictions can be reactivated to supply materials that have moved from niche industrial uses to central roles in modern energy and defense systems.