Tempest Reports Up to 70% Fe Concentrate from Remorse Iron Ore Tests

Metallurgical Breakthrough at Remorse

Tempest Minerals Ltd (ASX, TEM) has released a comprehensive update on its metallurgical testwork from the Remorse iron ore deposit, part of its Yalgoo Project in Western Australia. The latest results include the remaining eight Davis Tube Recovery (DTR) tests, which demonstrate iron concentrate grades reaching up to 70% Fe at a fine grind size of 25 microns. Importantly, these concentrates exhibit low impurity levels, a critical factor for downstream processing and marketability.

The Remorse Deposit, discovered in 2024, has rapidly evolved from initial drilling intercepts showing high-grade magnetite zones to a promising development prospect. The metallurgical robustness confirmed by these tests strengthens the deposit’s credentials as a high-quality iron ore source, potentially attractive to steelmakers seeking premium feedstock.

Strategic Location and Project Context

Situated within the Yalgoo-Singleton Greenstone Belt, the Remorse Deposit benefits from a geologically favourable setting known for hosting a variety of mineral commodities. The Yalgoo Project spans over 1,000 square kilometres and neighbours several established mining operations targeting base metals, gold, and iron ore. Tempest’s ongoing exploration efforts extend beyond iron, with active programs for gold and base metals, reflecting the district’s polymetallic potential.

Tempest’s collaboration with GreenSteel and Iron Pty Ltd, a mid-west steel developer, signals a strategic approach to advancing Remorse towards production. The memorandum of understanding between the companies aims to explore synergies in processing and development, potentially accelerating the project’s path to market.

Metallurgical Testing and Technical Rigor

The metallurgical testwork was conducted by Independent Metallurgical Operations Pty Ltd and SGS Metallurgy laboratory, employing industry-standard procedures. Samples were composited from six drill holes, stage crushed, and ground to various sizes to assess iron recovery and concentrate quality. The standout results at a P80 grind size of 25 microns showed consistent iron recoveries above 68%, with one composite exceeding 70% Fe.

Low levels of contaminants such as alumina (Al2O3), silica (SiO2), sulfur (S), and phosphorus (P) were recorded, which is encouraging for processing efficiency and product quality. These parameters are essential for meeting stringent steelmaking specifications and reducing beneficiation costs.

Next Steps and Development Outlook

Tempest is considering infill drilling to enhance resource confidence and is planning extensional drilling to delineate further mineralisation. Concurrently, exploration continues across the Yalgoo Project’s broader portfolio. The company’s methodical approach, combining geological, metallurgical, and strategic partnerships, positions Remorse as a compelling iron ore development candidate.

While the announcement does not provide updated resource estimates or definitive timelines for production, the metallurgical results mark a significant milestone. They underpin the economic potential of the Remorse Deposit and support Tempest’s ambition to advance the project rapidly.