# St George tests new tech on Brazil niobium, rare earths Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/st-george-tests-new-tech-on-brazil-niobium-rare-earths--ccce8d91-0f45-434b-b8c6-a0525b8cc0f2 Original source: https://miningbeacon.com/industry/st-george-tests-new-tech-on-brazil-niobium-rare-earths Publisher: miningbeacon Original announcement: 2026-04-01T00:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: St George Mining - Ticker: ASX: STG - Exchange: Unavailable - Region: Brazil - Primary commodity: Niobium - Secondary commodities: Rare earth metals - Document categories: Metallurgy, Resource update, Agreement transaction - Extracted: 2026-09-12 03:51:59 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary St George Mining has entered agreements to trial Boston Metal's Molten Oxide Electrolysis technology for niobium and Tecnicas Reunidas' RARETECH for rare earths at its Araxa project in Brazil. The company is leveraging these partnerships to develop downstream processing strategies for its maiden niobium and rare earth resource. Reasoning: St George is advancing its Araxa project through high-profile technology trials \(Boston Metal and Tecnicas Reunidas\) to de-risk downstream processing for its significant niobium and rare earth resource. - Positive factor: strategic technology partnerships - Positive factor: large-scale resource scale - Positive factor: downstream processing focus Facts used in scoring: 4 ## Classification and evidence No classification tags are available. ## Extracted facts Stored fact records: 4. Some facts used in scoring do not have a stored record. ## Resource Estimates (2) ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/st-george-tests-new-tech-on-brazil-niobium-rare-earths--ccce8d91-0f45-434b-b8c6-a0525b8cc0f2#fact-resource-facts-0) Araxa · niobium #### Identity - Project: Araxa - Commodity: niobium - Region: brazil - Reported Region: Brazil - Ticker: ASX: STG #### Resource scope - Estimate type: resource - Resource group id: resource:76d1654dcc2849df7a1c #### Resource Data - Category: inferred - Tonnes: 41200000 - Grade: 0.68 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-01T00:00:00.000Z Reasoning: Maiden niobium resource reported at Araxa. - Positive factor: maiden resource Evidence · text > 41.2 million tonnes grading 0.68% niobium pentoxide #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: no Qualified or Competent Person is named anywhere in the release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/st-george-tests-new-tech-on-brazil-niobium-rare-earths--ccce8d91-0f45-434b-b8c6-a0525b8cc0f2#fact-resource-facts-1) Araxa · rare earth metals #### Identity - Project: Araxa - Commodity: rare earth metals - Region: brazil - Reported Region: Brazil - Ticker: ASX: STG #### Resource scope - Estimate type: resource - Resource group id: resource:d99deb8d3421ce8a4f49 #### Resource Data - Category: inferred - Tonnes: 40600000 - Grade: 4.13 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-01T00:00:00.000Z Reasoning: Maiden rare earth resource reported at Araxa. - Positive factor: maiden resource Evidence · text > 40.6Mt at 4.13% total rare earth oxide #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: no Qualified or Competent Person is named anywhere in the release ## Metallurgical Results (2) ### Molten Oxide Electrolysis [Link to this fact](https://atlas-extractions.minestarters.com/news/st-george-tests-new-tech-on-brazil-niobium-rare-earths--ccce8d91-0f45-434b-b8c6-a0525b8cc0f2#fact-metallurgical-facts-2) Araxa · niobium #### Identity - Project: Araxa - Commodity: niobium - Region: brazil - Reported Region: Brazil - Ticker: ASX: STG #### Test Work - Program Status: preliminary - Test Type: Molten Oxide Electrolysis #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-01T00:00:00.000Z Reasoning: Trialing novel MOE technology for niobium production efficiencies. - Positive factor: advanced technology trial - Negative factor: unproven at scale for this specific project Evidence · text > assess Boston Metal’s Molten Oxide Electrolysis technology on niobium ### RARETECH [Link to this fact](https://atlas-extractions.minestarters.com/news/st-george-tests-new-tech-on-brazil-niobium-rare-earths--ccce8d91-0f45-434b-b8c6-a0525b8cc0f2#fact-metallurgical-facts-3) Araxa · rare earth metals #### Identity - Project: Araxa - Commodity: rare earth metals - Region: brazil - Reported Region: Brazil - Ticker: ASX: STG #### Test Work - Program Status: preliminary - Test Type: RARETECH #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-01T00:00:00.000Z Reasoning: Testing RARETECH technology for rare earth processing. - Positive factor: specialized technology trial Evidence · text > test the suitability of the Spanish engineering group’s RARETECH rare earths technology ## How Atlas produces this analysis Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.