Minbrie Copper Project Nears Drilling Approval as Lincoln Advances Critical Minerals Portfolio

Strategic Focus on South Australia's Gawler Craton

Lincoln Minerals Limited has presented a robust update at the July 2025 Noosa Mining Conference, reaffirming its commitment to unlocking value from a diversified portfolio of critical mineral projects in South Australia's highly prospective Gawler Craton. The company’s portfolio spans four key commodities; copper/zinc, uranium, high purity iron, and graphite; each positioned to benefit from the global energy transition and rising demand for clean energy metals.

South Australia’s Gawler Craton stands out as a tier-1 jurisdiction for critical minerals, offering political stability, proximity to major export markets in Asia and beyond, and access to established infrastructure. Lincoln’s projects are strategically located within 5 to 35 kilometres of grid power, water, and ports, including the soon-to-be operational Port Lincoln desalination plant and the approved Cape Hardy Port, which together promise to reduce capital intensity and accelerate development timelines.

Minbrie Copper-Base Metals Project – Drilling on the Horizon

The Minbrie Project has emerged as a flagship asset following a reinterpretation of legacy data and recent exploration success. Notably, a discovery hole (BUDD192) revealed significant copper, lead, zinc, and silver mineralisation over 29.5 metres, including high-grade intervals such as 12 metres at 1.3% copper and 12.4% lead. This discovery has redefined the project’s potential, uncovering multiple sulphide zones extending over a 7-kilometre strike.

Lincoln is finalising drill targets across three priority trap zones characterized by complex structural geology and mineralisation controls. The company anticipates receiving drilling approvals within the next two months, with a planned drill program scheduled for the fourth quarter of 2025. This program will employ reverse circulation drilling with diamond tails to test extensions of known mineralisation and explore oxide and supergene zones, potentially enhancing near-surface resource upside.

Graphite and Uranium – Advancing Development and Exploration

The Kookaburra Graphite Project continues to demonstrate compelling economics, with a pre-tax net present value of A$114 million and an internal rate of return of 41%. The project benefits from ultra-high-grade graphite near surface within an existing mining lease, low start-up capital of A$29 million, and proximity to infrastructure. Lincoln is progressing strategic partnerships and commercialisation plans, positioning itself for first-mover advantage in South Australia’s graphite sector.

Meanwhile, the Eyre Uranium Portfolio is gaining momentum with multiple drill-ready targets identified across the emerging uranium province. Historic drill intercepts of up to 570 parts per million uranium and recent surface sampling confirm the presence of uranium mineralisation. Planned activities include infill drilling and advanced geophysical surveys to refine targets and prepare for high-impact drilling campaigns.

Green Iron Project – Aligning with Green Steel Initiatives

Lincoln’s Green Iron Project holds one of South Australia’s largest undeveloped high-purity iron resources, with over 1.2 billion tonnes at 26% iron, upgradeable to more than 67% iron concentrate suitable for direct reduction iron (DRI) production. The project is well-positioned to support the growing electric arc furnace steelmaking sector, which demands high-grade iron feedstock.

With major infrastructure nearby and previous feasibility studies valued at $75 million, Lincoln is advancing strategic partnerships to complete definitive feasibility studies and secure mining leases. The project aligns closely with South Australian and federal government initiatives promoting a domestic green steel industry, enhancing its strategic value.

Outlook – Poised for Value Creation Amid Rising Demand

Lincoln Minerals is navigating a favourable market environment where demand for critical minerals such as copper and graphite is surging, driven by electric vehicles, renewable energy, and data infrastructure growth. Copper prices remain near record highs, with forecasts anticipating further gains amid supply constraints. Similarly, graphite demand is expected to rise sharply, underpinning the economics of the Kookaburra Project.

As Lincoln prepares to commence drilling at Minbrie and advances its other projects through strategic partnerships and development milestones, investors will be watching closely for results that could unlock significant value. The company’s diversified portfolio and strong infrastructure position provide a solid foundation to capitalize on the global energy transition’s mineral requirements.