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Highlights
- Tempest Minerals has secured regulatory approval for a Phase I drilling program at the Halo prospect.
- The Halo target has demonstrated potential for iron, copper, and gold mineralisation.
- A heritage survey is currently underway in collaboration with the Badimia People ahead of planned drilling activities.
- A 1,500m reverse circulation drilling programme at the Range Project is scheduled to test gold targets adjacent to Ramelius Resources’ operations.
Tempest Minerals Ltd (ASX:TEM) has announced significant progress at its 100%-owned Yalgoo Project in Western Australia, with regulatory approvals secured for Phase I drilling at the Halo prospect. A heritage survey is currently underway in collaboration with the Badimia People, the traditional owners of the land.
The Halo target, located approximately 5km west of the recently defined Remorse Deposit, is shaping up as a multi-commodity opportunity.
The Halo prospect was initially recognised as an iron occurrence. However, Tempest’s exploration work to date indicates that the area also holds potential for copper and gold mineralisation.
Strategic Positioning in the Murchison Region
The Yalgoo Project, located in the Murchison Region of Western Australia, spans approximately 1,000 km². It is situated in proximity to prominent resource companies across several commodities. These include ASX-listed Vault Minerals Ltd, Capricorn Metals Ltd, and Ramelius Resources Ltd in gold; 29 Metals Ltd and Tungsten Mining NL in base metals; and Fenix Resources Ltd, Karara Mining Ltd, and Sinosteel Midwest Group in iron.
Remorse Deposit: A Catalyst for Regional Growth
The eastern side of the project has gained regional importance following the discovery of the Remorse Deposit in 2024 with drill results of up to 39% iron.
Tempest has completed key developments at the project including a Mineral Resource Estimate of 63.5 Mt at 30.6% Fe under JORC 2012 standards. An Exploration Target of 50–110 Mt at 30–32% Fe has also been defined. Metallurgical testwork showed favourable results, including Davis Tube Recovery outcomes above 68% Fe, with one sample exceeding 70% Fe and showing low impurities.
A Memorandum of Understanding has been signed with Green Steel and Iron Pty Ltd, with plans to develop a multi-user iron facility near the Yalgoo Project.
Halo Prospect: Expanding Opportunity
The Halo prospect lies near the Remorse Deposit. It displays similar geology but features an extensive surficial outcrop, which is several times larger than the outcrop at Remorse. The broader Halo target area is prospective not only for iron but also for base metals and gold.
Project Milestones and Next Steps
Tempest has outlined several upcoming milestones at the Yalgoo Project. These include completing the heritage survey, updating geological models based on new observations, and finalising plans for potential drilling at Halo.
Broader Exploration Activity at Mt Magnet
Beyond Yalgoo, the company is also progressing exploration at its Range Project in Mt Magnet. Recent rock chip sampling returned grades of 1 g/t gold, and further surface sampling is planned to test additional priority gold targets. The company has also scheduled a 1,500m reverse circulation drilling program to test gold targets along strike from Ramelius Resources Ltd’s operations and adjacent to Ordell Minerals Ltd’s Baramaia Deposits.
TEM Shares Rally
TEM shares were trading 12.5% higher at AUD 0.009 per share at the time of writing on 18 September 2025.
