IMC Rare Earths Discovers New High-Grade, Near-Surface Terbium Zone Beyond Existing 1.1 Billion Tonne Resource at Block H, Itarantim

Original announcement by prnewswire on

Company
IMC Rare Earths Ltd
Ticker
IMC
Exchange
Unavailable
Region
Brazil
Primary commodity
Terbium
Secondary commodities
Dysprosium, Yttrium, Neodymium, Praseodymium
Document categories
Drill results, Other
Extracted
2026-10-08 13:40:05 UTC

Analysis by Minestarters Atlas

Atlas analysis published:

Minestarters Atlas analysis

Summary

IMC Rare Earths has announced a new high-grade, near-surface terbium discovery at Block H of its Itarantim project in Brazil. The discovery, located just two meters below the surface, includes intercepts with high terbium and dysprosium concentrations and shows promising initial leach extraction results.

Reasoning: Discovery of a new high-grade terbium zone at Block H that sits outside the existing 1.1 billion tonne resource, providing significant growth potential.

Positive factors

  • High-grade terbium discovery outside existing resource
  • Shallow, near-surface mineralization
  • Strong initial leach extraction results
  • Step-out potential at Block D

Negative factors

  • Exploration target status (conceptual/unproven)

Facts used in scoring: 8

Classification and evidence

Step-Out Extensionpositive

Mineralization extended beyond the previously known limit.

Why it applies: Discovery at Block H is outside the existing 1.1 billion tonne resource.

Evidence · text

“Block H lies outside the Company's existing 1.1 billion tonne Mineral Resource”

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: Release mentions blanks, field duplicates, and certified reference materials.

Evidence · text

“Sample batches include blanks, field duplicates and certified reference materials”

Extracted facts

Stored fact records: 8. Some facts used in scoring do not have a stored record.

Drill Results (8)

AD-00555Itarantim · terbiumGrade: 38Grade Unit: ppmIntercept: 7 mView all details
Link to this fact

Identity

Hole ID
AD-00555
Project
Itarantim
Commodity
terbium
Region
brazil
Reported Region
brazil
Ticker
IMC

Geometry

Grade
38
Grade Unit
ppm
Intercept
7 m
From
2 m
To
9 m
Hole Depth
16 m
Intercept Depth
2 m

Classification

Program
exploration
Sample Type
drill
Group ID
AD-00555:2-9
Mining Method
open_pit

Location

Location
Block H
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-10-08T00:00:00.000Z

Reasoning: Strong terbium grade in a new discovery zone.

Positive factors

  • High grade terbium
  • Shallow depth

Evidence · table

“38”

Context: 7.0

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

AD-00555Itarantim · dysprosiumGrade: 258Grade Unit: ppmIntercept: 7 mView all details
Link to this fact

Identity

Hole ID
AD-00555
Project
Itarantim
Commodity
dysprosium
Region
brazil
Reported Region
brazil
Ticker
IMC

Geometry

Grade
258
Grade Unit
ppm
Intercept
7 m
From
2 m
To
9 m
Hole Depth
16 m
Intercept Depth
2 m

Classification

Program
exploration
Sample Type
drill
Group ID
AD-00555:2-9
Mining Method
open_pit

Location

Location
Block H
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-10-08T00:00:00.000Z

Reasoning: Significant dysprosium component in the intercept.

Positive factors

  • High dysprosium grade

Evidence · table

“258”

Context: 7.0

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

AD-00555Itarantim · terbiumGrade: 52Grade Unit: ppmIntercept: 3 mView all details
Link to this fact

Identity

Hole ID
AD-00555
Project
Itarantim
Commodity
terbium
Region
brazil
Reported Region
brazil
Ticker
IMC

Geometry

Grade
52
Grade Unit
ppm
Intercept
3 m
From
4 m
To
7 m
Hole Depth
16 m
Intercept Depth
2 m

Classification

Program
exploration
Sample Type
drill
Group ID
AD-00555:4-7
Mining Method
open_pit

Location

Location
Block H
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-10-08T00:00:00.000Z

Reasoning: High grade terbium sub-interval.

Positive factors

  • Higher grade sub-interval

Evidence · table

“52”

Context: 3.0

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

AD-00555Itarantim · dysprosiumGrade: 357Grade Unit: ppmIntercept: 3 mView all details
Link to this fact

Identity

Hole ID
AD-00555
Project
Itarantim
Commodity
dysprosium
Region
brazil
Reported Region
brazil
Ticker
IMC

Geometry

Grade
357
Grade Unit
ppm
Intercept
3 m
From
4 m
To
7 m
Hole Depth
16 m
Intercept Depth
2 m

Classification

Program
exploration
Sample Type
drill
Group ID
AD-00555:4-7
Mining Method
open_pit

Location

Location
Block H
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-10-08T00:00:00.000Z

Reasoning: High grade dysprosium sub-interval.

Positive factors

  • High grade dysprosium sub-interval

Evidence · table

“357”

Context: 3.0

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

AD-00403Itarantim · terbiumGrade: 24Grade Unit: ppmIntercept: 20 mView all details
Link to this fact

Identity

Hole ID
AD-00403
Project
Itarantim
Commodity
terbium
Region
brazil
Reported Region
brazil
Ticker
IMC

Geometry

Grade
24
Grade Unit
ppm
Intercept
20 m
From
7 m
To
27 m
Intercept Depth
7 m

Classification

Program
exploration
Sample Type
drill
Group ID
AD-00403:7-27
Mining Method
open_pit

Location

Location
Block D
Loc. Confidence
high
Loc. Source
document

QA/QC

QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-10-08T00:00:00.000Z

Reasoning: Continuous mineralization at Block D.

Positive factors

  • Thick continuous mineralization

Evidence · table

“24”

Context: 20.0

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

AD-00403Itarantim · dysprosiumGrade: 143Grade Unit: ppmIntercept: 20 mView all details
Link to this fact

Identity

Hole ID
AD-00403
Project
Itarantim
Commodity
dysprosium
Region
brazil
Reported Region
brazil
Ticker
IMC

Geometry

Grade
143
Grade Unit
ppm
Intercept
20 m
From
7 m
To
27 m
Intercept Depth
7 m

Classification

Program
exploration
Sample Type
drill
Group ID
AD-00403:7-27
Mining Method
open_pit

Location

Location
Block D
Loc. Confidence
high
Loc. Source
document

QA/QC

QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-10-08T00:00:00.000Z

Reasoning: Dysprosium component in Block D intercept.

Evidence · table

“143”

Context: 20.0

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

AD-00403Itarantim · terbiumGrade: 42Grade Unit: ppmIntercept: 6 mView all details
Link to this fact

Identity

Hole ID
AD-00403
Project
Itarantim
Commodity
terbium
Region
brazil
Reported Region
brazil
Ticker
IMC

Geometry

Grade
42
Grade Unit
ppm
Intercept
6 m
From
20 m
To
26 m
Intercept Depth
20 m

Classification

Program
exploration
Sample Type
drill
Group ID
AD-00403:20-26
Mining Method
open_pit

Location

Location
Block D
Loc. Confidence
high
Loc. Source
document

QA/QC

QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-10-08T00:00:00.000Z

Reasoning: High grade terbium sub-interval at Block D.

Positive factors

  • High grade sub-interval

Evidence · table

“42”

Context: 6.0

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

AD-00403Itarantim · dysprosiumGrade: 262Grade Unit: ppmIntercept: 6 mView all details
Link to this fact

Identity

Hole ID
AD-00403
Project
Itarantim
Commodity
dysprosium
Region
brazil
Reported Region
brazil
Ticker
IMC

Geometry

Grade
262
Grade Unit
ppm
Intercept
6 m
From
20 m
To
26 m
Intercept Depth
20 m

Classification

Program
exploration
Sample Type
drill
Group ID
AD-00403:20-26
Mining Method
open_pit

Location

Location
Block D
Loc. Confidence
high
Loc. Source
document

QA/QC

QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-10-08T00:00:00.000Z

Reasoning: High grade dysprosium sub-interval at Block D.

Positive factors

  • High grade dysprosium sub-interval

Evidence · table

“262”

Context: 6.0

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Cut-off Undisclosednegative

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

Why it applies: no cutoff_grade was stated

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.