What's Behind Glenstar Minerals (CSE: GSTR)' Growing Critical Minerals Portfolio?

Highlights

• Glenstar continues advancing two exploration projects across Nevada.
• Green Monster's discovery hole revealed a new mineralized zone beyond the original target.
• Wild Horse has returned encouraging signs of multiple critical minerals.
• Upcoming assay results are expected to provide greater insight into Wild Horse's potential.
• Glenstar is refining drill targets to unlock additional exploration opportunities.

Sometimes, a single drill hole can completely reshape the outlook for a mining company. What begins as an exploration programme targeting one area can unexpectedly reveal a much bigger opportunity. That is exactly what happened for Glenstar Minerals Inc. (CSE:GSTR) at its Green Monster project in Nevada, where an unexpected mineralized intersection expanded the company's exploration potential. Combined with encouraging progress at its Wild Horse project, Glenstar is now advancing two properties that expose the company to a broad range of critical minerals used across modern industries.

How Did Green Monster Deliver an Unexpected Discovery?

Green Monster has become one of Glenstar's most significant exploration assets following the discovery hole GSMT-4. Instead of intersecting mineralization within the original target area, drilling identified a 40-foot mineralized zone in an unexpected location. The result suggested that the property could host multiple mineralized targets rather than a single system.

The project also benefits from its location surrounding a historic zinc-producing property that previously recovered about 2 million pounds of zinc. According to management, historical operations focused only on zinc, leaving the potential for silver, cobalt and nickel largely unexplored. Glenstar believes its surrounding land package offers considerable exploration upside.

What Did Phase 2 Teach the Exploration Team?

While Phase 2 drilling produced encouraging results, management described the programme as inconclusive and valuable from a learning perspective. The company identified large areas north and south of the discovery hole that remain untested, while access limitations prevented more extensive drilling.

Operational challenges involving a different drilling crew and equipment also affected the programme. Since then, Glenstar has selected Midnight Sun Drilling for future work after gaining confidence from the contractor's performance at Wild Horse.

The company also plans to use additional survey work to identify underground voids and refine future drill targets, helping guide the next stage of exploration at Green Monster.

Why Is Wild Horse Attracting So Much Attention?

Wild Horse stood out because of visible surface mineralization and evidence of several critical minerals. The property has returned encouraging signs of copper mineralization together with antimony, tungsten, gold, silver, bismuth and other metals.

Management believes the project contains two distinct mineralized zones. The Rattlesnake Zone is associated with antimony, while the Coca-Cola Zone appears to host a copper-gold system. Early drilling visually confirmed mineralization in both areas, although assay results are still pending.

The company said it has observed thick mineralized intervals containing both oxidized and sulphide mineralization, while re-logging work at the Coca-Cola Zone identified widespread sulphides and pyrite across broad intervals. The upcoming assay results are expected to provide a clearer understanding of mineral grades and the overall scale of the system.

How Do Both Projects Fit Glenstar's Long-Term Strategy?

Rather than viewing one project as more important than the other, management describes Green Monster and Wild Horse as complementary assets. Green Monster has already demonstrated discovery potential, while Wild Horse continues to reveal encouraging geological characteristics across multiple mineralized zones.

The company believes its portfolio offers exposure to a diverse range of critical minerals, including antimony, tungsten, copper, cobalt, nickel, zinc, silver and gold. Management also emphasises disciplined capital allocation by maintaining a lean operating structure, working with experienced contractors and preparing projects efficiently before drilling begins.

Looking ahead, Glenstar plans to continue drilling both projects, evaluate additional acquisition opportunities where appropriate and keep refining its exploration programmes as new results become available. According to management, each exploration campaign is intended to improve the understanding of both properties while advancing them toward defining mineral resources and creating long-term shareholder value.

Shares of GSTR last traded at CAD 0.20, up around 5.26% on July 06, 2026.