New Brunswick Seeks Antimony Mine Partners – by Joseph Quesnel (Canadian Mining Journal – March 26, 2026)

Key Takeaways

• Government seeks private partners for Lake George antimony mine.
• Site also hosts potential tungsten and molybdenum resources.
• Antimony demand rising due to electronics and defense sectors.
• Project aims to boost New Brunswick economy and Indigenous jobs.
• Reviving former largest North American antimony producer.

Pulse Analysis

Antimony, a silvery-white metalloid, is a critical component in flame retardants, lead‑acid batteries, and emerging semiconductor technologies. Global production has been dominated by China, which supplies roughly 70 % of the market, leaving western manufacturers vulnerable to supply disruptions and trade restrictions. Recent geopolitical tensions and stricter environmental standards have accelerated interest in domestic sources that can be mined responsibly. The Lake George deposit in New Brunswick, once the continent’s largest primary antimony operation, therefore represents a strategic asset that could diversify supply chains for North American manufacturers.

The provincial government’s March 24 request for private partners signals a shift toward public‑private collaboration in the critical minerals sector. By inviting companies to conduct exploration and eventual development, New Brunswick hopes to unlock not only antimony but also associated tungsten and molybdenum deposits, metals essential for aerospace alloys and cutting‑tool applications. Minister John Herron emphasized responsible stewardship and highlighted partnerships with local Indigenous communities as a cornerstone of the project, promising employment, training, and revenue‑sharing opportunities that could revitalize the region’s rural economy.

Despite the upside, investors must weigh technical and regulatory hurdles. The legacy nature of the Lake George mine means extensive environmental assessments and infrastructure upgrades will be required before production can resume. Market forecasts, however, suggest antimony prices could climb 15‑20 % over the next five years as demand from electric‑vehicle battery chemistries expands. Coupled with the potential to co‑extract tungsten and molybdenum, the project offers a multi‑metal revenue stream that could improve project economics and attract financing from ESG‑focused funds.