# Ucore Updates Mineral Resource Estimate and Technical Report for Bokan Dotson-Ridge Rare Earth Property Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018 Original source: https://money.tmx.com/en/quote/UCU/news/5914929580804646/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri Publisher: tmx Original announcement: 2026-04-14T13:11:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Ucore Rare Metals Inc. - Ticker: UCU - Exchange: TSX - Region: Southeast Alaska - Primary commodity: Rare earth - Secondary commodities: Lanthanum, Cerium, Praseodymium, Neodymium, Samarium, Europium, Gadolinium, Terbium, Dysprosium, Holmium, Erbium, Thulium, Ytterbium, Lutetium, Yttrium - Document categories: Resource update - Extracted: 2026-08-21 00:07:00 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary Ucore Rare Metals Inc. has announced an upgraded mineral resource estimate for the Bokan Dotson-Ridge rare earth project in Alaska. The update includes new measured mineralization and highlights a significant concentration of heavy rare earth oxides \(35-40% of TREO\). Reasoning: The company has upgraded its mineral resource estimate, adding new measured mineralization from 2022 surface channel sampling, and reports a favorable heavy rare earth oxide skew. - Positive factor: Upgraded resource with new measured mineralization - Positive factor: High HREO content \(35-40% of TREO\) - Positive factor: Resource is open at depth and along strike - Positive factor: NI 43-101 and SEC S-K 1300 compliant - Negative factor: Excludes I&L Zone from current estimate Facts used in scoring: 18 ## Classification and evidence **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: Technical Report prepared in accordance with NI 43-101. Evidence · text > prepared in accordance with both National Instrument 43-101 and SEC Regulation S-K 1300 **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: Mr. Jim Robinson, an independent qualified person, has reviewed and verified the content. Evidence · text > Mr. Robinson is an independent qualified person for the purposes of NI 43-101 standards **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: TREO cut-off of 0.4% is explicitly stated. Evidence · text > Assuming TREO cut-off of 0.4% ## Extracted facts Stored fact records: 18. Some facts used in scoring do not have a stored record. ## Resource Estimates (18) ### measured [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-0) rare earth #### Identity - Commodity: rare earth - Ticker: UCU #### Resource Data - Category: measured - Tonnes: 801600 - Grade: 0.6 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Newly estimated measured mineralization from 2022 surface channel sampling. - Positive factor: New measured mineralization added Evidence · text > An additional 801,600 tonnes of newly estimated Measured mineralization grading 0.60% of total rare earths \(" TREO "\) ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-1) rare earth #### Identity - Commodity: rare earth - Ticker: UCU #### Resource Data - Category: indicated - Tonnes: 3369800 - Grade: 0.58 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Large indicated resource component. Evidence · table > 0.58 Context: 3,369,800 ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-2) rare earth #### Identity - Commodity: rare earth - Ticker: UCU #### Resource Data - Category: inferred - Tonnes: 980300 - Grade: 0.57 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Speculative category. - Negative factor: Inferred category Evidence · table > 0.57 Context: 980,300 ### measured [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-3) lanthanum #### Identity - Commodity: lanthanum - Ticker: UCU #### Resource Data - Category: measured - Tonnes: 801600 - Grade: 0.07 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Component of TREO. Evidence · table > 0.07 Context: MEASURED ### measured [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-4) cerium #### Identity - Commodity: cerium - Ticker: UCU #### Resource Data - Category: measured - Tonnes: 801600 - Grade: 0.18 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Component of TREO. Evidence · table > 0.18 Context: MEASURED ### measured [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-5) praseodymium #### Identity - Commodity: praseodymium - Ticker: UCU #### Resource Data - Category: measured - Tonnes: 801600 - Grade: 0.02 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Component of TREO. Evidence · table > 0.02 Context: MEASURED ### measured [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-6) neodymium #### Identity - Commodity: neodymium - Ticker: UCU #### Resource Data - Category: measured - Tonnes: 801600 - Grade: 0.086 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Component of TREO. Evidence · table > 0.086 Context: MEASURED ### measured [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-7) samarium #### Identity - Commodity: samarium - Ticker: UCU #### Resource Data - Category: measured - Tonnes: 801600 - Grade: 0.022 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Component of TREO. Evidence · table > 0.022 Context: MEASURED ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-8) lanthanum #### Identity - Commodity: lanthanum - Ticker: UCU #### Resource Data - Category: indicated - Tonnes: 3369800 - Grade: 0.07 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Component of TREO. Evidence · table > 0.07 Context: INDICATED ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-9) cerium #### Identity - Commodity: cerium - Ticker: UCU #### Resource Data - Category: indicated - Tonnes: 3369800 - Grade: 0.16 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Component of TREO. Evidence · table > 0.16 Context: INDICATED ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-10) praseodymium #### Identity - Commodity: praseodymium - Ticker: UCU #### Resource Data - Category: indicated - Tonnes: 3369800 - Grade: 0.02 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Component of TREO. Evidence · table > 0.02 Context: INDICATED ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-11) neodymium #### Identity - Commodity: neodymium - Ticker: UCU #### Resource Data - Category: indicated - Tonnes: 3369800 - Grade: 0.08 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Component of TREO. Evidence · table > 0.080 Context: INDICATED ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-12) samarium #### Identity - Commodity: samarium - Ticker: UCU #### Resource Data - Category: indicated - Tonnes: 3369800 - Grade: 0.021 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Component of TREO. Evidence · table > 0.021 Context: INDICATED ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-13) lanthanum #### Identity - Commodity: lanthanum - Ticker: UCU #### Resource Data - Category: inferred - Tonnes: 980300 - Grade: 0.07 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Component of TREO. Evidence · table > 0.07 Context: INFERRED ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-14) cerium #### Identity - Commodity: cerium - Ticker: UCU #### Resource Data - Category: inferred - Tonnes: 980300 - Grade: 0.16 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Component of TREO. Evidence · table > 0.16 Context: INFERRED ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-15) praseodymium #### Identity - Commodity: praseodymium - Ticker: UCU #### Resource Data - Category: inferred - Tonnes: 980300 - Grade: 0.02 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Component of TREO. Evidence · table > 0.02 Context: INFERRED ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-16) neodymium #### Identity - Commodity: neodymium - Ticker: UCU #### Resource Data - Category: inferred - Tonnes: 980300 - Grade: 0.079 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Component of TREO. Evidence · table > 0.079 Context: INFERRED ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/ucore-updates-mineral-resource-estimate-and-technical-report-for-bokan-dotson-ri--15c6df17-c9c9-4315-b01c-92572dc46018#fact-resource-facts-17) samarium #### Identity - Commodity: samarium - Ticker: UCU #### Resource Data - Category: inferred - Tonnes: 980300 - Grade: 0.021 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Component of TREO. Evidence · table > 0.021 Context: INFERRED ## 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.