The Critical Mineral Western Nations Cannot Afford to Ignore Is Turning Up in New Brunswick

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Thursday, March 26, 2026

Antimony does not get the same headlines as lithium or copper, but it has quietly become one of the most strategically contested minerals on the planet. China controls roughly half of global mine production and has been tightening export restrictions since 2024 (Reuters). Long essential for flame retardants, lead acid batteries, and ammunition hardening, antimony is now a top priority for Western supply chain security. Against this backdrop, a junior explorer expanding a high-grade antimony deposit in southern New Brunswick is drawing significant market attention. 

Antimony Resources Corp. (CSE: ATMY) (OTCQB: ATMYF) announced today that field crews have extended the Marcus West Zone at the Bald Hill Antimony Project. The team exposed massive stibnite mineralization in bedrock 30m south of the original discovery boulder reported in February. The zone has now been traced over approximately 80m of surface exposure. Geological descriptions note massive stibnite concentrations and alteration characteristics that closely resemble the Main Zone, the established deposit anchoring the project. 

The Marcus West Zone was first encountered in January during road construction on the western side of the Bald Hill Main Zone. Finding this mineralization incidentally during infrastructure work rather than through targeted exploration is a telling sign. It suggests the mineralized footprint at Bald Hill is larger than historical work defined, and that systematic exploration in previously overlooked areas has real potential to add to the project inventory. 

While the Marcus West Zone captures new interest, drilling continues on the Main Zone with two rigs operating simultaneously from the east and west sides. Approximately 6,500m of a planned 10,000m definition program have been completed to date. The Main Zone remains the core of the project, with a strike length of 700m and a vertical depth of at least 350m. Mineralization averages 3% to 4% antimony over widths of 3 to 4m and remains open in all directions. A 2025 technical report described a conceptual exploration target of 2.7M tonnes at 3% to 4% antimony, though formal mineral resource definitions are still pending further work. 

The next phase of focus following the Marcus West trenching program will be the Central Zone, located south of the Main Zone. Past trenching there returned 2.8% antimony over 8m, yet the area has not been extensively explored. This represents another active front for a project already expanding in multiple directions. 

The political response to antimony supply risks has been proportionate to the strategic stakes. The U.S., EU, Canada, and Australia have all moved to accelerate domestic or allied supply chains. Bald Hill sits in New Brunswick, a Tier 1 jurisdiction with established mining infrastructure and a supportive regulatory framework. For a critical mineral that Western governments are actively trying to source from allied nations, a high-grade stibnite deposit in eastern Canada carries a jurisdictional premium that projects in less stable regions cannot match. 

ATMY is currently trading at C$1.35, up 10.7%. With the definition drilling program now past the halfway mark, upcoming assay results from the Main Zone and the emerging Marcus West Zone serve as the primary near-term catalysts.

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