Grid Metals Announces Maiden Cesium Resource at Falcon West; Establishes Lucy South Cesium Deposit as the World's Second Largest Cesium Resource in Active Development

Original announcement by orestocks on

Company
Grid Metals Corp.
Ticker
GRDM.V
Exchange
Unavailable
Region
Manitoba
Primary commodity
Cesium
Secondary commodities
Lithium
Document categories
Resource update
Extracted
2026-09-30 11:37:52 UTC

Analysis by Minestarters Atlas

Atlas analysis published:

Minestarters Atlas analysis

Summary

Grid Metals has announced a maiden Mineral Resource Estimate for the Lucy South cesium deposit at the Falcon West Property in Manitoba. The resource is entirely in the measured category, consisting of 51,500 tonnes at 2.58% Cs2O and 1.47% Li2O, including a high-grade pollucite zone.

Reasoning: The announcement of a maiden resource with 100% measured classification is a major de-risking milestone for a critical mineral project.

Positive factors

  • Maiden resource establishment
  • 100% measured category provides high geological confidence
  • Critical mineral status for cesium
  • High-grade pollucite zone identified

Facts used in scoring: 4

Classification and evidence

Maiden Resourceneutral

First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component.

Why it applies: The company announced its first formal Mineral Resource Estimate for the Lucy South deposit.

Evidence · text

“announce a maiden Mineral Resource Estimate ("MRE")”

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: Rohan Millar, P.Geo., of SGS Geological Services is named as the independent Qualified Person.

Evidence · text

“estimated by Rohan Millar, P.Geo., of SGS Geological Services, an independent Qualified Person”

NI 43-101 Compliantpositive

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

Why it applies: The MRE was prepared in compliance with NI 43-101 standards.

Evidence · text

“in compliance with National Instrument 43-101”

Cut-off Disclosedpositive

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

Why it applies: The base case cut-off grade of 0.2 Cs2O% is clearly stated in the resource table and notes.

Evidence · table

“0.2”

Context: 0.2

Extracted facts

Stored fact records: 4. Some facts used in scoring do not have a stored record.

Resource Estimates (4)

measuredFalcon West · cesiumTonnes: 51500Grade: 2.58Grade Unit: % Cs2OView all details
Link to this fact

Identity

Project
Falcon West
Commodity
cesium
Region
canada_mb
Reported Region
Manitoba
Ticker
GRDM.V

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Rohan Millar
Resource group id
resource:e09f557fbe74fb1c3d11
Deposit or zone
LCT Zone
Mining method
combined
Ownership percent
85 %
Resource basis
gross

Resource Data

Category
measured
Tonnes
51500
Grade
2.58
Grade Unit
% Cs2O
Cutoff Grade
0.2
Cutoff Unit
% Cs2O

Prior Estimate

Resource Date
2026-09-25

Lab

Laboratory
Activation Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-30T00:00:00.000Z

Reasoning: Maiden measured resource for the LCT zone.

Positive factors

  • Maiden resource
  • 100% measured

Evidence · table

“51,500”

Context: 51,500

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

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

measuredFalcon West · lithiumTonnes: 51500Grade: 1.47Grade Unit: % Li2OView all details
Link to this fact

Identity

Project
Falcon West
Commodity
lithium
Region
canada_mb
Reported Region
Manitoba
Ticker
GRDM.V

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Rohan Millar
Resource group id
resource:e09f557fbe74fb1c3d11
Deposit or zone
LCT Zone
Mining method
combined
Ownership percent
85 %
Resource basis
gross

Resource Data

Category
measured
Tonnes
51500
Grade
1.47
Grade Unit
% Li2O
Cutoff Grade
0.2
Cutoff Unit
% Cs2O

Prior Estimate

Resource Date
2026-09-25

Lab

Laboratory
Activation Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-30T00:00:00.000Z

Reasoning: Lithium grade reported as part of the maiden LCT zone resource.

Positive factors

  • Part of maiden resource

Evidence · table

“1.47”

Context: 51,500

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

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

measuredFalcon West · cesiumTonnes: 15600Grade: 5.19Grade Unit: % Cs2OView all details
Link to this fact

Identity

Project
Falcon West
Commodity
cesium
Region
canada_mb
Reported Region
Manitoba
Ticker
GRDM.V

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Rohan Millar
Resource group id
resource:f51d0b33aa0bf1f56f71
Deposit or zone
Pollucite Zone
Mining method
combined
Ownership percent
85 %
Resource basis
gross

Resource Data

Category
measured
Tonnes
15600
Grade
5.19
Grade Unit
% Cs2O
Cutoff Grade
0.2
Cutoff Unit
% Cs2O

Prior Estimate

Resource Date
2026-09-25

Lab

Laboratory
Activation Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-30T00:00:00.000Z

Reasoning: High-grade measured cesium resource in the Pollucite Zone.

Positive factors

  • High-grade pollucite zone
  • Maiden resource

Evidence · table

“5.19”

Context: 15,600

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

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

measuredFalcon West · lithiumTonnes: 15600Grade: 1.76Grade Unit: % Li2OView all details
Link to this fact

Identity

Project
Falcon West
Commodity
lithium
Region
canada_mb
Reported Region
Manitoba
Ticker
GRDM.V

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Rohan Millar
Resource group id
resource:f51d0b33aa0bf1f56f71
Deposit or zone
Pollucite Zone
Mining method
combined
Ownership percent
85 %
Resource basis
gross

Resource Data

Category
measured
Tonnes
15600
Grade
1.76
Grade Unit
% Li2O
Cutoff Grade
0.2
Cutoff Unit
% Cs2O

Prior Estimate

Resource Date
2026-09-25

Lab

Laboratory
Activation Laboratories

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-30T00:00:00.000Z

Reasoning: Lithium grade reported as part of the high-grade maiden Pollucite Zone resource.

Positive factors

  • Part of maiden resource

Evidence · table

“1.76”

Context: 15,600

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

No Contained Metalnegative

Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained_metal was not reported

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.