# Ur-Energy Updates Lost Creek Property Technical Report Summary Estimating an Extended Mine Life and Increase in Net Cash Flow Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/ur-energy-updates-lost-creek-property-technical-report-summary-estimating-an-ext--1eeb0384-ab11-4c3d-9c1c-23e51cec2b1f Original source: https://money.tmx.com/en/quote/URG/news/8261239901675558/ur-energy-updates-lost-creek-property-technical-report-summary-estimating-an-ext Publisher: tmx Original announcement: 2026-03-10T21:40:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Ur-Energy Inc. - Ticker: URG - Exchange: TSX - Region: Wyoming - Primary commodity: Uranium - Secondary commodities: None reported - Document categories: Resource update - Extracted: 2026-08-21 01:19:35 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Ur-Energy has filed an updated S-K 1300 Initial Assessment Technical Report Summary for its Lost Creek Property, reporting an extended mine life to Q2 2039 and a significant increase in life of mine net cash flow to $442.2 million and NPV to $244.1 million after income taxes. The updated resource estimate shows an overall increase in total contained uranium pounds, primarily due to a 34.3% increase in the Inferred category, although Measured and Indicated contained pounds decreased by 5.2% after accounting for production. Reasoning: The updated technical report for the Lost Creek Property indicates an extended mine life and significantly improved economic metrics, including net cash flow and NPV, driven by an overall increase in contained metal, despite a decrease in the Measured and Indicated categories. - Positive factor: Extended mine life - Positive factor: Increased net cash flow - Positive factor: Increased NPV - Positive factor: Increased total contained metal - Positive factor: QP/CP signed - Positive factor: SEC S-K 1300 Compliant - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Decrease in Measured and Indicated contained metal - Negative factor: Weak grades for uranium - Negative factor: Significant portion of resource is Inferred Low confidence — this extraction should be reviewed alongside the original source. Facts used in scoring: 9 ## Classification and evidence **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: The Lost Creek Report was prepared by Qualified Person, Western Water Consultants, Inc., d/b/a WWC Engineering \('WWC'\). Evidence · text > The Lost Creek Report was prepared by Qualified Person, Western Water Consultants, Inc., d/b/a WWC Engineering \("WWC"\). **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: The report was prepared in accordance with Canadian National Instrument 43-101. Evidence · text > in accordance with Canadian National Instrument 43-101, "Standards of Disclosure for Mineral Projects" \(NI 43-101\) **SEC S-K 1300 Compliant** Polarity: positive Story-specific tag Definition: No canonical definition is currently available. Why it applies: The report was prepared in accordance with Modernized Property Disclosure Requirements for Mining Registrants as described in Subpart 1300 of Regulation S-K. Evidence · text > Modernized Property Disclosure Requirements for Mining Registrants as described in Subpart 1300 of Regulation S-K, 17 C.F.R. §229.1300 et seq.,\(S-K 1300\) **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: The document announces the filing of an updated S-K 1300 Initial Assessment Technical Report Summary for the Lost Creek Property. Evidence · text > Ur-Energy Updates Lost Creek Property Technical Report Summary Estimating an Extended Mine Life and Increase in Net Cash Flow **Contained Metal Growth** Polarity: positive Definition: True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes. Why it applies: The estimated pounds remaining to be produced increased by approximately one million pounds, and the Inferred category saw a 3.550 million pound \(34.3%\) increase. Evidence · text > estimated pounds remaining to be produced increased by approximately one million pounds, from 11.664 million pounds as of December 31, 2023, per the Prior Report, to 12.700 million pounds as of December 31, 2025, per the Lost Creek Report. **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The updated mineral resource estimate includes 10.357 million pounds eU3O8 in the Inferred category. Evidence · text > 10.357 million pounds eU 3 O 8 in the Inferred category. **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: The document states that resources are based on a grade cutoff of 0.02 % eU3O8 and a grade x thickness cutoff of 0.20 GT. Evidence · text > Table shows resources based on grade cutoff of 0.02 % eU 3 O 8 and a grade x thickness cutoff of 0.20 GT. **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: The report is an 'Initial Assessment Technical Report Summary', which is equivalent to a Preliminary Economic Assessment. Evidence · text > updated S-K 1300 Initial Assessment Technical Report Summary **Contained Metal Decline** Polarity: negative Definition: Contained metal decreased vs prior despite tonnage growth — grade dilution exceeds volume gain. Why it applies: The Measured and Indicated categories experienced a 649 thousand pound \(5.2%\) decrease in estimated pounds after accounting for production. Evidence · text > a 649 thousand pound \(5.2%\) decrease in estimated pounds in the Measured and Indicated categories \(after accounting for production\) ## Extracted facts Stored fact records: 9. Some facts used in scoring do not have a stored record. ## Resource Estimates (9) ### measured [Link to this fact](https://atlas-staging.minestarters.com/news/ur-energy-updates-lost-creek-property-technical-report-summary-estimating-an-ext--1eeb0384-ab11-4c3d-9c1c-23e51cec2b1f#fact-resource-facts-0) Lost Creek · uranium #### Identity - Project: Lost Creek - Commodity: uranium - Ticker: URG #### Resource Data - Category: measured - Tonnes: 9630000 - Grade: 0.049 - Grade Unit: % U3O8 - Contained Metal: 8309000 - Contained Unit: lb U3O8 - Cutoff Grade: 0.02 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-03-10T00:00:00.000Z Reasoning: Measured resource for Lost Creek Grand Total, with a weak grade for uranium. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: SEC S-K 1300 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Weak grade Evidence · table > 0.049 Context: 10,616 ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/ur-energy-updates-lost-creek-property-technical-report-summary-estimating-an-ext--1eeb0384-ab11-4c3d-9c1c-23e51cec2b1f#fact-resource-facts-1) Lost Creek · uranium #### Identity - Project: Lost Creek - Commodity: uranium - Ticker: URG #### Resource Data - Category: indicated - Tonnes: 3533000 - Grade: 0.046 - Grade Unit: % U3O8 - Contained Metal: 3559000 - Contained Unit: lb U3O8 - Cutoff Grade: 0.02 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-03-10T00:00:00.000Z Reasoning: Indicated resource for Lost Creek Grand Total, with a weak grade for uranium. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: SEC S-K 1300 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Weak grade Evidence · table > 0.046 Context: 3,895 ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/ur-energy-updates-lost-creek-property-technical-report-summary-estimating-an-ext--1eeb0384-ab11-4c3d-9c1c-23e51cec2b1f#fact-resource-facts-2) Lost Creek · uranium #### Identity - Project: Lost Creek - Commodity: uranium - Ticker: URG #### Resource Data - Category: inferred - Tonnes: 10025000 - Grade: 0.047 - Grade Unit: % U3O8 - Contained Metal: 10357000 - Contained Unit: lb U3O8 - Cutoff Grade: 0.02 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-03-10T00:00:00.000Z Reasoning: Inferred resource for Lost Creek Grand Total, showing a significant increase in contained metal, but with a weak grade. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: SEC S-K 1300 Compliant - Positive factor: Cut-off Disclosed - Positive factor: Contained Metal Growth - Negative factor: Weak grade - Negative factor: Inferred Resource Evidence · table > 0.047 Context: 11,052 ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/ur-energy-updates-lost-creek-property-technical-report-summary-estimating-an-ext--1eeb0384-ab11-4c3d-9c1c-23e51cec2b1f#fact-resource-facts-3) Lost Creek · uranium #### Identity - Project: Lost Creek - Commodity: uranium - Ticker: URG #### Resource Data - Category: indicated - Tonnes: 11249000 - Grade: 0.048 - Grade Unit: % U3O8 - Contained Metal: 11868000 - Contained Unit: lb U3O8 - Cutoff Grade: 0.02 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-03-10T00:00:00.000Z Reasoning: Combined Measured and Indicated resource for Lost Creek Grand Total, showing a decrease in contained metal after accounting for production, with a weak grade. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: SEC S-K 1300 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Weak grade - Negative factor: Contained Metal Decline Evidence · table > 11,868 Context: 12,400 ### Fact 5 [Link to this fact](https://atlas-staging.minestarters.com/news/ur-energy-updates-lost-creek-property-technical-report-summary-estimating-an-ext--1eeb0384-ab11-4c3d-9c1c-23e51cec2b1f#fact-resource-facts-4) #### Identity - Ticker: URG #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-03-10T00:00:00.000Z Reasoning: The estimated mine life for the Lost Creek Property has been extended by nearly three years, from 2036 Q3 to 2039 Q2. - Positive factor: Extended mine life Evidence · text > The estimated mine life \(i.e., through final wellfield production but excluding additional restoration\) increased by nearly three years, from 2036 Q3 per the Prior Report to 2039 Q2 per the Lost Creek Report. ### Fact 6 [Link to this fact](https://atlas-staging.minestarters.com/news/ur-energy-updates-lost-creek-property-technical-report-summary-estimating-an-ext--1eeb0384-ab11-4c3d-9c1c-23e51cec2b1f#fact-resource-facts-5) #### Identity - Ticker: URG #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-03-10T00:00:00.000Z Reasoning: The life of mine net cash flow after income taxes increased by 45.7% to $442.2 million. - Positive factor: Increased net cash flow Evidence · table > 442,196 Context: Net Cash Flow ### Fact 7 [Link to this fact](https://atlas-staging.minestarters.com/news/ur-energy-updates-lost-creek-property-technical-report-summary-estimating-an-ext--1eeb0384-ab11-4c3d-9c1c-23e51cec2b1f#fact-resource-facts-6) #### Identity - Ticker: URG #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-03-10T00:00:00.000Z Reasoning: The NPV after income taxes \(8% discount rate\) increased by 47.4% to $244.1 million. - Positive factor: Increased NPV Evidence · table > 244,092 Context: NPV 8% ### Fact 8 [Link to this fact](https://atlas-staging.minestarters.com/news/ur-energy-updates-lost-creek-property-technical-report-summary-estimating-an-ext--1eeb0384-ab11-4c3d-9c1c-23e51cec2b1f#fact-resource-facts-7) #### Identity - Ticker: URG #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-03-10T00:00:00.000Z Reasoning: Estimated pounds remaining to be produced increased by approximately one million pounds to 12.7 million pounds. - Positive factor: Increased estimated pounds remaining to be produced Evidence · table > 12,700 Context: Production ### Fact 9 [Link to this fact](https://atlas-staging.minestarters.com/news/ur-energy-updates-lost-creek-property-technical-report-summary-estimating-an-ext--1eeb0384-ab11-4c3d-9c1c-23e51cec2b1f#fact-resource-facts-8) #### Identity - Ticker: URG #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-03-10T00:00:00.000Z Reasoning: The total cost per pound after tax is reported as $54.89. Evidence · table > 54.89 Context: Total Cost per Pound ## 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.