# Elk Creek Project, US Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/elk-creek-project-us--1ef58f8d-0aeb-4688-8de6-d98c6a0b7235 Original source: https://www.mining-technology.com/projects/elk-creek-niobium-project-nebraska/ Publisher: miningtechnology Original announcement: 2026-10-05T08:32:06.737Z Analysis by Minestarters Atlas Atlas analysis published: 2026-10-05T08:32:51.879Z Atlas analysis updated: 2026-10-05T08:32:51.879Z - Company: NioCorp Developments - Ticker: Unavailable - Exchange: Unavailable - Region: Nebraska, US - Primary commodity: Niobium - Secondary commodities: Titanium, Scandium, Rare earth elements - Document categories: Resource update, Other - Extracted: 2026-10-05 08:32:52 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary NioCorp Developments' Elk Creek project in Nebraska features 45.9 million tonnes of 2P reserves grading 0.75% niobium pentoxide and 2.6% titanium dioxide. An updated feasibility study completed in August 2026 outlines a 40-year mine life with an initial investment of approximately $1.8 billion. Reasoning: The document details a substantial 2P reserve estimate for a high-grade niobium project with significant byproduct potential and a long mine life, supported by an updated feasibility study. - Positive factor: High-grade primary niobium resource - Positive factor: Significant reserve tonnage \(45.9 Mt\) - Positive factor: Long mine life of 40 years - Positive factor: Strong byproduct suite including titanium and scandium - Negative factor: High initial investment requirement \($1.8bn\) Facts used in scoring: 4 ## Classification and evidence **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The document reports 45.9mt in 2P \(proven and probable\) reserves. Evidence · text > The project is estimated to contain 45.9mt in 2P reserves. ## Extracted facts Stored fact records: 4. Some facts used in scoring do not have a stored record. ## Resource Estimates (4) ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/elk-creek-project-us--1ef58f8d-0aeb-4688-8de6-d98c6a0b7235#fact-resource-facts-0) Elk Creek · niobium #### Identity - Project: Elk Creek - Commodity: niobium - Region: nebraska, us - Reported Region: Nebraska, US #### Resource scope - Estimate type: reserve - Resource group id: resource:67b355eebeb3cf6a198b - Deposit or zone: Elk Creek - Mining method: underground #### Resource Data - Category: probable - Tonnes: 45900000 - Grade: 0.75 - Grade Unit: % Nb2O5 #### Prior Estimate - Resource Date: 2026-04-01 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-05T00:00:00.000Z Reasoning: Primary niobium grade of 0.75% Nb2O5 in a large reserve. - Positive factor: High-grade niobium Evidence · text > The proven and probable \(2P\) mineral reserves at the Elk Creek project were estimated at 45.9 million tonnes \(mt\), grading 0.75% niobium pentoxide #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/elk-creek-project-us--1ef58f8d-0aeb-4688-8de6-d98c6a0b7235#fact-resource-facts-1) Elk Creek · titanium #### Identity - Project: Elk Creek - Commodity: titanium - Region: nebraska, us - Reported Region: Nebraska, US #### Resource scope - Estimate type: reserve - Resource group id: resource:67b355eebeb3cf6a198b - Deposit or zone: Elk Creek - Mining method: underground #### Resource Data - Category: probable - Tonnes: 45900000 - Grade: 2.6 - Grade Unit: % TiO2 #### Prior Estimate - Resource Date: 2026-04-01 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-05T00:00:00.000Z Reasoning: Strong titanium dioxide grade as a byproduct. - Positive factor: Significant titanium byproduct Evidence · text > grading 0.75% niobium pentoxide, 2.6% titanium dioxide #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/elk-creek-project-us--1ef58f8d-0aeb-4688-8de6-d98c6a0b7235#fact-resource-facts-2) Elk Creek · scandium #### Identity - Project: Elk Creek - Commodity: scandium - Region: nebraska, us - Reported Region: Nebraska, US #### Resource scope - Estimate type: reserve - Resource group id: resource:67b355eebeb3cf6a198b - Deposit or zone: Elk Creek - Mining method: underground #### Resource Data - Category: probable - Tonnes: 45900000 - Grade: 69.3 - Grade Unit: ppm Sc #### Prior Estimate - Resource Date: 2026-04-01 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-05T00:00:00.000Z Reasoning: Presence of scandium as a byproduct. - Positive factor: Valuable scandium byproduct Evidence · text > with 69.3ppm scandium #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/elk-creek-project-us--1ef58f8d-0aeb-4688-8de6-d98c6a0b7235#fact-resource-facts-3) Elk Creek · rare earth elements #### Identity - Project: Elk Creek - Commodity: rare earth elements - Region: nebraska, us - Reported Region: Nebraska, US #### Resource scope - Estimate type: reserve - Resource group id: resource:67b355eebeb3cf6a198b - Deposit or zone: Elk Creek - Mining method: underground #### Resource Data - Category: probable - Tonnes: 45900000 - Grade: 0.34 - Grade Unit: % TREO #### Prior Estimate - Resource Date: 2026-04-01 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-05T00:00:00.000Z Reasoning: Presence of total rare earth oxides. - Positive factor: REE byproduct potential Evidence · text > and 0.34% total rare earth oxides #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ## 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.