Highlights

  • Araxá is a rare earths and niobium project in Brazil, with an updated 2026 mineral resource estimate.
  • The March 2026 estimate comprised 70.91 million tonnes at 4.06% TREO and 0.62% Nb₂O₅.
  • An August 2026 update reported a further increase in measured and indicated resources.
  • For St George Mining (ASX:SGQ), permitting, metallurgy and project funding remain important milestones.

St George Mining Limited (ASX:SGQ) is a mineral exploration and development company advancing rare earths and niobium assets, principally the Araxá Project in Brazil. Its activities during 2026 have included resource definition drilling, processing investigations and preparation for possible project development. Shares closed at AUD 0.055 on 5 November 2026, using the quoted price for that session. The company remains at a project-evaluation stage, meaning its mineral resource figures should not be confused with production or sales.

Araxá Resource Definition and Drilling

The Araxá mineralisation contains rare earth oxides and niobium, two distinct groups of materials with different processing and commercial applications. In March 2026, St George reported an updated mineral resource estimate of 70.91 million tonnes grading 4.06% total rare earth oxides and 0.62% niobium pentoxide, using a 2% TREO cut-off. That estimate included both higher-confidence measured and indicated material and inferred resources, which carry a lower level of geological confidence.

The company's 11 August 2026 release subsequently reported a 155% increase in measured and indicated resources. This relates to resource classification and should not be read as a corresponding increase in economically mineable ore reserves. Exploration drilling seeks to establish continuity, grade distribution and potential extensions to the model. Further technical work is required before development assumptions, extraction methods and project Economics can be treated as settled.

Processing, Permitting and 2026 Project Work

During August 2026, St George disclosed the commencement of permitting activities for Araxá and work associated with a proposed rare earths processing centre in Brazil. In September it announced pilot-plant test work. These are steps in evaluating a potential operation, rather than evidence that commercial mining or processing has started. Successful laboratory and pilot work must be interpreted alongside flowsheet recovery, impurity removal, reagent demand, operating costs and engineering scale-up.

The company also disclosed studies and relationships intended to assess possible Downstream processing routes. Their eventual contribution depends on engineering results, agreements, permitting and financing. Location-specific infrastructure and industrial arrangements may affect the preferred development plan. In the meantime, ongoing geological drilling and metallurgical testing are separate workstreams, each capable of changing technical assumptions as new results become available.

Funding, Risks and What Comes Next

At 31 March 2026, St George reported a cash balance of approximately AUD 43 million. This figure refers to that reporting date and should not be treated as its November balance; subsequent quarterly cash-flow disclosures are relevant for assessing available funding. Resource drilling, feasibility work and permitting require expenditure before any potential operating receipts, and further Capital may be necessary if the development scope expands.

The project's key uncertainties include metallurgical recoveries, resource conversion, environmental approvals, construction costs, Commodity prices and arrangements for selling products. A resource estimate is not a guarantee of economic extraction. The next useful disclosures will be updated technical studies, quantitative pilot-plant results, permitting progress and the company's latest funding position. These disclosures should make clear which work has been completed and which milestones remain conditional.

Key Insights

St George's 2026 disclosures show a larger geological information base at Araxá alongside progressing processing and permitting activities. The project has not been described here as a producing mine. Technical outcomes, approvals, finance requirements and the distinction between mineral resources and reserves remain central to understanding its development pathway.