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 Mar 10, 2026

Bullish

Company: Ur-Energy Inc.
Ticker: URG
Exchange: TSX
Region: Wyoming
Primary commodity: Uranium
Secondary commodities: None reported
Document categories: Resource update, Economic study
Extracted: 2026-09-19 03:36:00 UTC

Minestarters Atlas analysis

Summary

Ur-Energy announced an updated S-K 1300 Initial Assessment Technical Report Summary for its Lost Creek Property, showing a significant increase in post-tax NPV to $244.1 million and net cash flow to $442.2 million. The report extends the estimated mine life by nearly three years to Q2 2039 and updates the mineral resource estimate, with a notable increase in Inferred pounds. The economic analysis supports the project's continued viability and growth potential.

Reasoning: The document reports a significant positive update to the Lost Creek Property's economic assessment, including a substantial increase in NPV and net cash flow, and an extended mine life. The resource update also shows growth in the Inferred category. While the study is an early-stage Initial Assessment, the improvements are material.

Positive factors

Significant increase in post-tax NPV (47.4%) and net cash flow (45.7%) compared to the prior report.
Extended mine life by nearly three years.
Increase in estimated pounds remaining to be produced.
High post-tax IRR (65.7%) indicates strong project economics.
Resource update shows an increase in Inferred pounds, suggesting growth potential.
Study is an S-K 1300 Initial Assessment, providing a formal economic basis.

Negative factors

Initial Assessment (PEA-equivalent) study class has higher uncertainty and is not bankable.
Inferred resources are considered speculative and cannot support economic studies alone, though a separate analysis excluding them was performed.
The study excludes initial capital costs incurred prior to the determination date, which can flatter the economics.

Low confidence — this extraction should be reviewed alongside the original source.

Facts used in scoring: 5

Classification and evidence

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: A current resource fact retains the disclosed cut-off grade

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: The source explicitly discloses a revised resource estimate

Evidence · text

“updated mineral resource estimate”

Extracted facts

Stored fact records: 3. Some facts used in scoring do not have a stored record.

Resource Estimates (3)

measuredLost Creek Property · uraniumTonnes: 8505000Grade: 0.049Grade Unit: % eU3O8Contained Metal: 8309000Contained Unit: lbsView all details

Link to this fact

Identity

Project: Lost Creek Property
Commodity: uranium
Region: wyoming
Reported Region: Wyoming
Ticker: URG

Resource scope

Estimate type: resource
Effective date: 2025-12-31T00:00:00.000Z
Reporting standards: sec_sk1300, ni_43_101
QP Signed: Yes
Qualified person names: Western Water Consultants, Inc., d/b/a WWC Engineering
Resource group id: resource:61b9dfcbb152afa9a624
Deposit or zone: LOST CREEK

Resource Data

Category: measured
Tonnes: 8505000
Grade: 0.049
Grade Unit: % eU3O8
Contained Metal: 8309000
Contained Unit: lbs
Cutoff Grade: 0.02
Cutoff Unit: % eU3O8

Prior Estimate

Resource Date: 2025-12-31

Metal Equivalent

Assumptions Disclosed: No

Review

Needs Review: No
Historical: No

Dates

Event date: 2026-03-10T00:00:00.000Z

Reasoning: The Measured resource for the Lost Creek Property is a high-confidence estimate, contributing significantly to the overall resource base and supporting the project's economic viability.

Positive factors

High confidence category (Measured) for a significant portion of the resource.
Resource estimate prepared under S-K 1300 and NI 43-101 standards, indicating robust methodology.

Evidence · table

“0.049”

Context: 8,505

Tags used in scoring

Measured Resourcepositive

Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.

Why it applies: category is "measured"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

indicatedLost Creek Property · uraniumTonnes: 3895000Grade: 0.046Grade Unit: % eU3O8Contained Metal: 3559000Contained Unit: lbsView all details

Link to this fact

Identity

Project: Lost Creek Property
Commodity: uranium
Region: wyoming
Reported Region: Wyoming
Ticker: URG

Resource scope

Estimate type: resource
Effective date: 2025-12-31T00:00:00.000Z
Reporting standards: sec_sk1300, ni_43_101
QP Signed: Yes
Qualified person names: Western Water Consultants, Inc., d/b/a WWC Engineering
Resource group id: resource:95256ba3d22def149d69
Deposit or zone: LOST CREEK

Resource Data

Category: indicated
Tonnes: 3895000
Grade: 0.046
Grade Unit: % eU3O8
Contained Metal: 3559000
Contained Unit: lbs
Cutoff Grade: 0.02
Cutoff Unit: % eU3O8

Prior Estimate

Resource Date: 2025-12-31

Metal Equivalent

Assumptions Disclosed: No

Review

Needs Review: No
Historical: No

Dates

Event date: 2026-03-10T00:00:00.000Z

Reasoning: The Indicated resource adds to the confidence in the Lost Creek Property's mineral inventory, supporting further economic evaluation.

Positive factors

Indicated resource provides reasonable geological confidence for project planning.
Resource estimate prepared under S-K 1300 and NI 43-101 standards, indicating robust methodology.

Evidence · table

“0.046”

Context: 3,895

Tags used in scoring

Indicated Resourcepositive

Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

inferredLost Creek Property · uraniumTonnes: 11052000Grade: 0.047Grade Unit: % eU3O8Contained Metal: 10357000Contained Unit: lbsView all details

Link to this fact

Identity

Project: Lost Creek Property
Commodity: uranium
Region: wyoming
Reported Region: Wyoming
Ticker: URG

Resource scope

Estimate type: resource
Effective date: 2025-12-31T00:00:00.000Z
Reporting standards: sec_sk1300, ni_43_101
QP Signed: Yes
Qualified person names: Western Water Consultants, Inc., d/b/a WWC Engineering
Resource group id: resource:5e9b2184e5fc765278e0
Deposit or zone: LOST CREEK

Resource Data

Category: inferred
Tonnes: 11052000
Grade: 0.047
Grade Unit: % eU3O8
Contained Metal: 10357000
Contained Unit: lbs
Cutoff Grade: 0.02
Cutoff Unit: % eU3O8

Prior Estimate

Resource Date: 2025-12-31
Prior Contained Metal: 10357000

Metal Equivalent

Assumptions Disclosed: No

Review

Needs Review: No
Historical: No

Dates

Event date: 2026-03-10T00:00:00.000Z

Reasoning: The substantial increase in Inferred resources highlights the project's growth potential, although this category carries higher geological uncertainty.

Positive factors

Significant increase (3.550 million pounds or 34.3%) in estimated pounds in the Inferred category, indicating strong exploration potential.
Resource estimate prepared under S-K 1300 and NI 43-101 standards.

Negative factors

Inferred resources are speculative and cannot support economic studies alone.

Evidence · table

“0.047”

Context: 11,052

Tags used in scoring

Inferred Resourcenegative

Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: category is "inferred"

Cut-off Disclosedpositive

Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: cutoff_grade is stated

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: qp_signed is true

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: reporting_standards includes ni_43_101

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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.