Western Mines Group Uncovers Potential Revenue Stream in Former Waste Material

A layer of rock previously considered worthless overburden at Western Mines Group’s Mulga Tank project may soon generate significant income. The company has entered into an agreement with Magnium Australia to supply magnesite from the Western Australian site, shifting focus to a mineral critical for producing low-carbon magnesium metal.

Strategic Partnership Targets Critical Metal Supply

The collaboration centers on what has been termed the “magnesite cap” at Mulga Tank. While the project is primarily recognized for its nickel sulfide deposits, recent analysis has revealed substantial value in the material overlying the main ore body. X-ray diffraction (XRD) testing of samples indicates a magnesite content of up to 48%.

For Magnium Australia, this represents a potential domestic source for its planned low-emission magnesium metal production. The company aims to establish an annual production capacity exceeding 100,000 tonnes, requiring stable local feedstock. Magnesium is classified as a critical metal, essential for aerospace, defense, and energy transition technologies.

Transforming Economics from Liability to Asset

This initiative could substantially improve the project’s overall economics. Historically, resource models treated the magnesite layer as valueless waste rock that incurred removal costs to access the deeper nickel ores. The partnership with Magnium Australia seeks to monetize this material, potentially converting a cost center into a new revenue stream.

Should investors sell immediately? Or is it worth buying Western Mines?

Before a binding offtake agreement is finalized, a bulk sample from Mulga Tank will undergo suitability testing using Magnium’s proprietary “Magsonic” process. Should these tests confirm the material’s quality, both parties intend to commence formal negotiations on supply volumes.

Parallel Development Pathways Advance

Alongside this development, Western Mines Group continues to advance its drilling program for 2026. Funded by a recent capital raise and government grants, the company’s exploration team remains focused on defining the deep nickel sulfide resources. The timeline for implementing this planned earnings diversification will become clearer once the magnesite material test results are received.

The outcome could see the company benefiting from two distinct revenue sources at a single operation: premium nickel from depth and now, potentially, magnesite from what was once considered mere waste.