Ur-Energy Updates Lost Creek Property Technical Report Summary Estimating an Extended Mine Life and Increase in Net Cash Flow
Original announcement by tmx on
- 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
Analysis by Minestarters Atlas
Minestarters Atlas analysis
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 factors
- Extended mine life
- Increased net cash flow
- Increased NPV
- Increased total contained metal
- QP/CP signed
- SEC S-K 1300 Compliant
- NI 43-101 Compliant
- Cut-off Disclosed
Negative factors
- Decrease in Measured and Indicated contained metal
- Weak grades for uranium
- 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 Signedpositive
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 Compliantpositive
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 Compliantpositive · Story-specific tag
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 Updateneutral
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 Growthpositive
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 Resourcenegative
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 Disclosedpositive
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-Supportingneutral
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 Declinenegative
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)
measuredLost Creek · uraniumTonnes: 9630000Grade: 0.049Grade Unit: % U3O8Contained Metal: 8309000Contained Unit: lb U3O8View all detailsHide details
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 factors
- QP/CP Signed
- NI 43-101 Compliant
- SEC S-K 1300 Compliant
- Cut-off Disclosed
Negative factors
- Weak grade
Evidence · table
“0.049”
Context: 10,616
indicatedLost Creek · uraniumTonnes: 3533000Grade: 0.046Grade Unit: % U3O8Contained Metal: 3559000Contained Unit: lb U3O8View all detailsHide details
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 factors
- QP/CP Signed
- NI 43-101 Compliant
- SEC S-K 1300 Compliant
- Cut-off Disclosed
Negative factors
- Weak grade
Evidence · table
“0.046”
Context: 3,895
inferredLost Creek · uraniumTonnes: 10025000Grade: 0.047Grade Unit: % U3O8Contained Metal: 10357000Contained Unit: lb U3O8View all detailsHide details
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 factors
- QP/CP Signed
- NI 43-101 Compliant
- SEC S-K 1300 Compliant
- Cut-off Disclosed
- Contained Metal Growth
Negative factors
- Weak grade
- Inferred Resource
Evidence · table
“0.047”
Context: 11,052
indicatedLost Creek · uraniumTonnes: 11249000Grade: 0.048Grade Unit: % U3O8Contained Metal: 11868000Contained Unit: lb U3O8View all detailsHide details
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 factors
- QP/CP Signed
- NI 43-101 Compliant
- SEC S-K 1300 Compliant
- Cut-off Disclosed
Negative factors
- Weak grade
- Contained Metal Decline
Evidence · table
“11,868”
Context: 12,400
Fact 5View all detailsHide details
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 factors
- 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 6View all detailsHide details
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 factors
- Increased net cash flow
Evidence · table
“442,196”
Context: Net Cash Flow
Fact 7View all detailsHide details
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 factors
- Increased NPV
Evidence · table
“244,092”
Context: NPV 8%
Fact 8View all detailsHide details
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 factors
- Increased estimated pounds remaining to be produced
Evidence · table
“12,700”
Context: Production
Fact 9View all detailsHide details
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.