ARAXÁ, BRAZIL : April 7, 2026 : St George Mining (ASX: SGQ) has announced a record-breaking drilling result at its flagship Araxá Rare Earths and Niobium Project in Minas Gerais, Brazil. The company reported a massive 178.7-meter intercept grading 4.34% Total Rare Earth Oxide (TREO) and 0.75% Niobium (Nb2O5), starting directly from the surface.
The results from drill hole ARX-092 represent some of the highest-grade, continuous mineralization ever recorded at the project, further cementing Araxá’s status as a Tier-1 critical minerals discovery. The intercept underscores the potential for a large-scale, low-strip ratio open-pit mining operation, a factor that significantly enhances the project’s economic profile as the world enters a period of heightened demand for magnet metals.
A New Benchmark for Brazil’s Rare Earths Sector
The Araxá project is located in one of the world’s premier mining jurisdictions, situated immediately adjacent to the world-class niobium mine operated by CBMM, which currently supplies approximately 80% of the global niobium market. This latest discovery by St George Mining highlights that the high-grade mineralization characteristic of the region extends significantly across its tenement package.
“These results are transformative for St George,” a company spokesperson noted during the technical briefing. “To hit nearly 180 meters of high-grade material starting from the surface is rare in the global rare earths sector. It confirms our geological model and suggests that we are looking at a deposit that could rival the world’s most established operations.”
The discovery comes at a critical time for the industry. As explored in our recent report on the global battery revolution, the demand for high-performance magnets used in electric vehicle (EV) motors and wind turbines is projected to outpace supply by the end of the decade. St George’s ability to define high-grade mineralization from surface suggests a streamlined path toward production.
Technical Analysis: Breaking Down ARX-092
The 178.7m intercept is not just notable for its length but for the consistency of the grades encountered. Within the broader interval, several ultra-high-grade zones were identified, including:
- 44m @ 6.12% TREO and 1.05% Nb2O5 from 22m.
- 12m @ 8.45% TREO from 56m.
The mineralization is hosted within weathered carbonatite, which is traditionally easier and cheaper to process than hard-rock deposits. This geological setting is similar to other major global deposits, such as the Per Geijer Rare Earths project in Sweden, though the Brazilian climate and established mining infrastructure in Minas Gerais offer distinct logistical advantages.
Table 1: Key Intercept Data for ARX-092
| Hole ID | From (m) | To (m) | Interval (m) | TREO (%) | Nb2O5 (%) |
|---|---|---|---|---|---|
| ARX-092 | 0 | 178.7 | 178.7 | 4.34% | 0.75% |
| including | 22 | 66 | 44 | 6.12% | 1.05% |
| including | 56 | 68 | 12 | 8.45% | 0.92% |
Strategic Implications for Niobium Supply
While the Rare Earth Oxide (REO) grades have captured the headlines, the 0.75% Niobium grade remains a critical value driver for the project. Niobium is an essential element in the production of high-strength, low-alloy (HSLA) steel and is increasingly being utilized in fast-charging battery anodes.
With the 2026 market outlook for industrial metals remaining volatile, projects that offer multi-commodity exposure: specifically those involving “green” metals: are garnering increased interest from institutional investors. St George’s proximity to CBMM provides a blueprint for successful integration into the global supply chain. The niobium expansion at Araxá, which recently saw resources grow to 95 million tonnes, positions St George as a potential secondary source of supply in a market currently dominated by a single player.
Infrastructure and Open-Pit Potential
The shallow nature of the mineralization reported today suggests a very low stripping ratio for any future mining operation. In open-pit mining, the ratio of waste rock to ore (strip ratio) is a primary driver of operating costs. Starting mineralization from the surface effectively minimizes the amount of non-productive material that must be moved.
Furthermore, the Araxá region is characterized by established power, water, and transport networks. Unlike remote discoveries that require billions in greenfield infrastructure, St George can leverage a local workforce and existing industrial service providers. This infrastructure advantage was highlighted in the latest Skillings Stock Slam, where analysts discussed the importance of “de-risked” jurisdictions in the current high-interest-rate environment.
Market Context: The 2026 Critical Minerals Landscape
The timing of St George’s announcement coincides with a broader shift in Western mineral procurement strategies. Governments in the U.S., EU, and Australia are actively seeking to diversify supply chains away from a single-source dependency. Brazil has emerged as a preferred partner due to its long mining history and favorable regulatory environment.
The demand for electric cars and the need for sustainable mining practices have forced junior explorers to prove not just the grade of their deposits, but the environmental and social feasibility of their projects. St George has maintained a proactive stance on ESG (Environmental, Social, and Governance) standards at Araxá, aiming to meet the rigorous requirements of international end-users.
Next Steps for St George Mining
Following this record intercept, St George Mining plans to accelerate its feasibility studies. Key upcoming milestones for the remainder of 2026 include:
- Updated Mineral Resource Estimate (MRE): Incorporating the remaining 90 drill holes from the current campaign to expand the already significant 70Mt REO and 95Mt Niobium resource.
- Preliminary Economic Assessment (PEA): Initial modeling of the open-pit mine life and capital expenditure requirements.
- Metallurgical Testing: Optimizing recovery rates for the weathered carbonatite ore.
- Strategic Partnership Discussions: Engaging with mid-stream and down-stream partners interested in securing long-term offtake for niobium and PrNd (Praseodymium-Neodymium) oxides.
Investors have responded positively to the news, with trading volume for SGQ on the ASX increasing significantly following the release. While the project is still in the exploration and definition phase, the sheer scale and grade of the ARX-092 intercept place it among the most significant discoveries in the rare earths space this decade.
Skillings Mining Intelligence: Daily News Digest – April 7, 2026
As part of our commitment to keeping operators and investors informed, here are the top headlines moving the markets today:
- St George Mining (ASX:SGQ): Hits record 178.7m @ 4.34% TREO at Araxá Project, Brazil.
- Gold Markets: Central bank reserves reach new highs in Q1 2026, supporting price floors. Read more.
- Copper Supply: Analysts warn of deepening deficit through 2027 as major Chilean projects face delays. Full Analysis.
- Nickel Rally: Prices surge 20% following production cuts at Weda Bay, reshaping the 2026 outlook. Market Report.
Market Snapshot: Critical Minerals (Daily Change)
| Commodity | Price (USD/mt) | % Change |
|---|---|---|
| Niobium (Ferroniobium) | $48,500 | +1.2% |
| Neodymium-Praseodymium Oxide | $72,000 | +0.8% |
| Copper (LME) | $10,450 | +2.1% |
| Gold (oz) | $2,410 | -0.2% |
Salini Krishnan is a lead analyst for Skillings Mining Intelligence, covering critical minerals and South American exploration.
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