Argentina Lithium & Energy Corp. Files Technical Report for the Rincon West Lithium Project

Original announcement by tmx on

Company
Argentina Lithium & Energy Corp.
Ticker
LIT
Exchange
TSX
Region
Salta Province, Argentina
Primary commodity
Lithium
Secondary commodities
Potassium
Document categories
Resource update, Other
Extracted
2026-09-12 11:27:02 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Argentina Lithium & Energy Corp. has filed a NI 43-101 Technical Report announcing the maiden mineral resource estimate for the Rincon West lithium brine project in Argentina. The estimate includes lithium and potassium resources across measured, indicated, and inferred categories, expressed in both raw concentrations and Lithium Carbonate Equivalent (LCE).

Reasoning: The filing of a maiden NI 43-101 technical report for the Rincon West project establishes a baseline resource for the lithium brine asset.

Positive factors

  • Maiden resource estimate established
  • NI 43-101 compliant
  • QP sign-off provided
  • Strategic investment and offtake with Stellantis mentioned

Negative factors

  • 100% of resource is Inferred (based on LCE tonnes/category breakdown)
  • No cut-off grade applied (standard for brine but affects comparability)

Facts used in scoring: 12

Classification and evidence

Maiden Resourceneutral

First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component. No prior estimate exists, so every change band is not applicable.

Why it applies: The announcement states this is the first mineral resource estimate (MRE) for the Rincon West project.

Evidence · text

“disclosure of the first mineral resource estimate (" MRE ")”

NI 43-101 Compliantpositive

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

Why it applies: The resource estimate conforms to NI 43-101 standards and was prepared by a Qualified Person.

Evidence · text

“conform to NI 43-101 standards and guidelines”

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: Frederik Reidel, CPG, is named as the independent Qualified Person who reviewed and approved the technical content.

Evidence · text

“The Qualified Person for this Mineral Resource estimate is Frederik Reidel , CPG.”

Inferred Resourcenegative

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

Why it applies: A significant portion of the resource is in the Inferred category, which has lower geological confidence.

Evidence · text

“The quantity and grade of the reported Inferred Mineral Resources are conceptual in nature”

Extracted facts

Stored fact records: 12. Some facts used in scoring do not have a stored record.

Resource Estimates (12)

measuredRincon West · lithiumTonnes: 40000Grade: 297Grade Unit: mg/lView all details
Link to this fact

Identity

Project
Rincon West
Commodity
lithium
Region
argentina
Reported Region
Salta Province, Argentina
Ticker
LIT

Resource scope

Estimate type
resource
Effective date
2025-11-27T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Frederik Reidel
Resource group id
resource:90d820ad448f9d2cb4da
Deposit or zone
Rincon West
Material type
brine
Resource basis
gross

Resource Data

Category
measured
Tonnes
40000
Grade
297
Grade Unit
mg/l

Prior Estimate

Resource Date
2025-11-27

Review

Needs Review
No
Historical
No

Dates

Event date
2025-12-04T00:00:00.000Z

Reasoning: Measured lithium concentration in brine.

Positive factors

  • Measured category provides highest confidence

Evidence · table

“297”

Context: 40,000

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 Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff_grade was 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

measuredRincon West · potassiumTonnes: 770000Grade: 5776Grade Unit: mg/lView all details
Link to this fact

Identity

Project
Rincon West
Commodity
potassium
Region
argentina
Reported Region
Salta Province, Argentina
Ticker
LIT

Resource scope

Estimate type
resource
Effective date
2025-11-27T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Frederik Reidel
Resource group id
resource:cf858dc8c449ded96866
Deposit or zone
Rincon West
Material type
brine
Resource basis
gross

Resource Data

Category
measured
Tonnes
770000
Grade
5776
Grade Unit
mg/l

Prior Estimate

Resource Date
2025-11-27

Review

Needs Review
No
Historical
No

Dates

Event date
2025-12-04T00:00:00.000Z

Reasoning: Measured potassium concentration in brine.

Evidence · table

“5,776”

Context: 770,000

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 Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff_grade was 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

indicatedRincon West · lithiumTonnes: 5000Grade: 295Grade Unit: mg/lView all details
Link to this fact

Identity

Project
Rincon West
Commodity
lithium
Region
argentina
Reported Region
Salta Province, Argentina
Ticker
LIT

Resource scope

Estimate type
resource
Effective date
2025-11-27T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Frederik Reidel
Resource group id
resource:9b869da2e5163e6aa97a
Deposit or zone
Rincon West
Material type
brine
Resource basis
gross

Resource Data

Category
indicated
Tonnes
5000
Grade
295
Grade Unit
mg/l

Prior Estimate

Resource Date
2025-11-27

Review

Needs Review
No
Historical
No

Dates

Event date
2025-12-04T00:00:00.000Z

Reasoning: Indicated lithium concentration in brine.

Evidence · table

“295”

Context: 5,000

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 Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff_grade was 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

indicatedRincon West · potassiumTonnes: 92000Grade: 5686Grade Unit: mg/lView all details
Link to this fact

Identity

Project
Rincon West
Commodity
potassium
Region
argentina
Reported Region
Salta Province, Argentina
Ticker
LIT

Resource scope

Estimate type
resource
Effective date
2025-11-27T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Frederik Reidel
Resource group id
resource:174aa4f4d9867f681d08
Deposit or zone
Rincon West
Material type
brine
Resource basis
gross

Resource Data

Category
indicated
Tonnes
92000
Grade
5686
Grade Unit
mg/l

Prior Estimate

Resource Date
2025-11-27

Review

Needs Review
No
Historical
No

Dates

Event date
2025-12-04T00:00:00.000Z

Reasoning: Indicated potassium concentration in brine.

Evidence · table

“5,686”

Context: 92,000

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 Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff_grade was 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

inferredRincon West · lithiumTonnes: 12000Grade: 216Grade Unit: mg/lView all details
Link to this fact

Identity

Project
Rincon West
Commodity
lithium
Region
argentina
Reported Region
Salta Province, Argentina
Ticker
LIT

Resource scope

Estimate type
resource
Effective date
2025-11-27T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Frederik Reidel
Resource group id
resource:f1883be8ad586c6d7f66
Deposit or zone
Rincon West
Material type
brine
Resource basis
gross

Resource Data

Category
inferred
Tonnes
12000
Grade
216
Grade Unit
mg/l

Prior Estimate

Resource Date
2025-11-27

Review

Needs Review
No
Historical
No

Dates

Event date
2025-12-04T00:00:00.000Z

Reasoning: Inferred lithium concentration in brine.

Negative factors

  • Inferred category has lower geological confidence

Evidence · table

“216”

Context: 12,000

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 Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff_grade was 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

inferredRincon West · potassiumTonnes: 219000Grade: 4085Grade Unit: mg/lView all details
Link to this fact

Identity

Project
Rincon West
Commodity
potassium
Region
argentina
Reported Region
Salta Province, Argentina
Ticker
LIT

Resource scope

Estimate type
resource
Effective date
2025-11-27T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Frederik Reidel
Resource group id
resource:1033c985cf2065a68232
Deposit or zone
Rincon West
Material type
brine
Resource basis
gross

Resource Data

Category
inferred
Tonnes
219000
Grade
4085
Grade Unit
mg/l

Prior Estimate

Resource Date
2025-11-27

Review

Needs Review
No
Historical
No

Dates

Event date
2025-12-04T00:00:00.000Z

Reasoning: Inferred potassium concentration in brine.

Negative factors

  • Inferred category has lower geological confidence

Evidence · table

“4,085”

Context: 219,000

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 Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff_grade was 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

measuredRincon West · lithiumTonnes: 212800View all details
Link to this fact

Identity

Project
Rincon West
Commodity
lithium
Region
argentina
Reported Region
Salta Province, Argentina
Ticker
LIT

Resource scope

Estimate type
resource
Effective date
2025-11-27T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Frederik Reidel
Resource group id
resource:8e7b8d2d26629e91f941
Deposit or zone
Rincon West
Material type
brine
Resource basis
gross

Resource Data

Category
measured
Tonnes
212800

Prior Estimate

Resource Date
2025-11-27

Review

Needs Review
No
Historical
No

Dates

Event date
2025-12-04T00:00:00.000Z

Reasoning: Measured LCE resource tonnes.

Evidence · table

“212,800”

Context: 212,800

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 Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff_grade was 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

measuredRincon West · potassiumTonnes: 1470700View all details
Link to this fact

Identity

Project
Rincon West
Commodity
potassium
Region
argentina
Reported Region
Salta Province, Argentina
Ticker
LIT

Resource scope

Estimate type
resource
Effective date
2025-11-27T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Frederik Reidel
Resource group id
resource:763dbbc42f058747be95
Deposit or zone
Rincon West
Material type
brine
Resource basis
gross

Resource Data

Category
measured
Tonnes
1470700

Prior Estimate

Resource Date
2025-11-27

Review

Needs Review
No
Historical
No

Dates

Event date
2025-12-04T00:00:00.000Z

Reasoning: Measured KCl resource tonnes.

Evidence · table

“1,470,700”

Context: 1,470,700

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 Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff_grade was 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

indicatedRincon West · lithiumTonnes: 26600View all details
Link to this fact

Identity

Project
Rincon West
Commodity
lithium
Region
argentina
Reported Region
Salta Province, Argentina
Ticker
LIT

Resource scope

Estimate type
resource
Effective date
2025-11-27T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Frederik Reidel
Resource group id
resource:25e494c7250edb6c5709
Deposit or zone
Rincon West
Material type
brine
Resource basis
gross

Resource Data

Category
indicated
Tonnes
26600

Prior Estimate

Resource Date
2025-11-27

Review

Needs Review
No
Historical
No

Dates

Event date
2025-12-04T00:00:00.000Z

Reasoning: Indicated LCE resource tonnes.

Evidence · table

“26,600”

Context: 26,600

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 Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff_grade was 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

indicatedRincon West · potassiumTonnes: 175720View all details
Link to this fact

Identity

Project
Rincon West
Commodity
potassium
Region
argentina
Reported Region
Salta Province, Argentina
Ticker
LIT

Resource scope

Estimate type
resource
Effective date
2025-11-27T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Frederik Reidel
Resource group id
resource:654aadf7fcfcb36898bf
Deposit or zone
Rincon West
Material type
brine
Resource basis
gross

Resource Data

Category
indicated
Tonnes
175720

Prior Estimate

Resource Date
2025-11-27

Review

Needs Review
No
Historical
No

Dates

Event date
2025-12-04T00:00:00.000Z

Reasoning: Indicated KCl resource tonnes.

Evidence · table

“175,720”

Context: 175,720

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 Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff_grade was 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

inferredRincon West · lithiumTonnes: 64000View all details
Link to this fact

Identity

Project
Rincon West
Commodity
lithium
Region
argentina
Reported Region
Salta Province, Argentina
Ticker
LIT

Resource scope

Estimate type
resource
Effective date
2025-11-27T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Frederik Reidel
Resource group id
resource:4706a3f622c1c229f9cd
Deposit or zone
Rincon West
Material type
brine
Resource basis
gross

Resource Data

Category
inferred
Tonnes
64000

Prior Estimate

Resource Date
2025-11-27

Review

Needs Review
No
Historical
No

Dates

Event date
2025-12-04T00:00:00.000Z

Reasoning: Inferred LCE resource tonnes.

Negative factors

  • Inferred category has lower geological confidence

Evidence · table

“64,000”

Context: 64,000

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 Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff_grade was 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

inferredRincon West · potassiumTonnes: 327000View all details
Link to this fact

Identity

Project
Rincon West
Commodity
potassium
Region
argentina
Reported Region
Salta Province, Argentina
Ticker
LIT

Resource scope

Estimate type
resource
Effective date
2025-11-27T00:00:00.000Z
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Frederik Reidel
Resource group id
resource:597b8b49121d0f94c803
Deposit or zone
Rincon West
Material type
brine
Resource basis
gross

Resource Data

Category
inferred
Tonnes
327000

Prior Estimate

Resource Date
2025-11-27

Review

Needs Review
No
Historical
No

Dates

Event date
2025-12-04T00:00:00.000Z

Reasoning: Inferred KCl resource tonnes.

Negative factors

  • Inferred category has lower geological confidence

Evidence · table

“327,000”

Context: 327,000

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 Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff_grade was 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.