# 06:02 ET 1911 Gold Reports Positive Metallurgical Results of 93.7% for True North and 96.3% for Ogama-Rockland 1911 Gold Corporation \("1911 Gold" or the "Company"\) \(TSXV: AUMB\) \(OTCQX: AUMBF\) \(FRA: 2KY\) is pleased to report the results of metallurgical gold...

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e

Original source: https://www.newswire.ca/news-releases/1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north-and-96-3-for-ogama-rockland-887873031.html

Publisher: cnw

Original announcement: 2026-08-20T11:45:57.320Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- Company: 1911 Gold Corporation

- Ticker: AUMB

- Exchange: Unavailable

- Region: Manitoba, Canada

- Primary commodity: Gold

- Secondary commodities: None reported

- Document categories: Metallurgy

- Extracted: 2026-08-24 03:52:49 UTC

Narrative sentiment: 0.90 · Bullish

## Minestarters Atlas summary

1911 Gold Corporation announced positive metallurgical test results for its True North and Ogama-Rockland Gold Projects in Manitoba, Canada. The True North project achieved average gold recoveries of 93.7% from a gravity-flotation-leach flowsheet, while the Ogama-Rockland project demonstrated 96.3% total gold recovery. These results confirm the amenability of the ore to conventional processing with moderate reagent consumption and no acid-generating potential, supporting the company's plans for test mining and mill recommissioning.

Reasoning: 1911 Gold reported excellent gold recoveries of 93.7% for True North and 96.3% for Ogama-Rockland, supported by detailed metallurgical test work. The results indicate favorable processing characteristics, including significant gravity recovery, moderate reagent consumption, and no deleterious elements, which de-risk future production decisions.

- Positive factor: High gold recoveries for both projects

- Positive factor: Significant gravity recoverable gold component

- Positive factor: Moderate to low reagent consumption

- Positive factor: Low ore hardness \(BMWI\)

- Positive factor: No acid-generating or deleterious metal leaching potential

- Positive factor: Clean ore material amenable to high recoveries

- Negative factor: Some test work is preliminary, requiring further studies and optimization

- Negative factor: Testing limited to single composite samples for both projects, requiring wider range of host rock samples

Facts used in scoring: 82

## Classification and evidence

**High Recovery**

Polarity: positive

Definition: Recovery at or above the exceptional band for the commodity and processing route.

Why it applies: Total gold recoveries of 93.7% for True North and 96.3% for Ogama-Rockland are well above the exceptional band for gold mill/CIL processing.

Evidence · text

> Positive Metallurgical Results of 93.7% for True North and 96.3% for Ogama-Rockland

**QA/QC Disclosed**

Polarity: positive

Story-specific tag

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

Why it applies: The release explicitly states that ALS Canada Ltd. \(Metallurgy Services\) is ISO-9001:2015 certified and accredited by the Standards Council of Canada, and that the work was reviewed by Robert Sloan, P.Eng.

Evidence · text

> ALS Canada Ltd. \(Metallurgy Services\), Kamloops, Canada for the metallurgical recovery test work which is ISO-9001:2015 certified \(Certificate No. FS 63170\) and is accredited by the Standards Council of Canada for the specific tests undertaken.

**QP/CP Signed**

Polarity: positive

Story-specific tag

Definition: 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 scientific and technical information was reviewed and approved by Michele Della Libera, P.Geo., and Roselyn Yeboah, P.Eng., who are 'Qualified Persons' under NI 43-101.

Evidence · text

> The scientific and technical information in this news release has been reviewed and approved by Michele Della Libera, P.Geo., V.P. Exploration, and Roselyn Yeboah, P.Eng., Senior Metallurgist, of 1911 Gold Corporation, who are "Qualified Persons" as defined under NI 43-101.

**Free Milling**

Polarity: positive

Definition: Simple, clean ore amenable to standard processing without oxidation.

Why it applies: The True North ore showed no acid-generating or deleterious metal leaching potential, and Ogama-Rockland material was described as 'clean nature of material'.

Evidence · text

> no acid-generating and deleterious metal leaching potential

**Bench Scale Only**

Polarity: negative

Definition: Only preliminary bench tests completed — no locked-cycle or pilot work.

Why it applies: The test work involved 'Cyanidation bottle roll leach tests' and 'preliminary metallurgical test-work program', indicating bench-scale testing rather than pilot plant operations.

Evidence · text

> Cyanidation bottle roll leach tests were conducted

**Single Domain Only**

Polarity: negative

Definition: Testing limited to one composite or domain — representativeness not established.

Why it applies: For True North, a '130 kilogram sample' from the 'L10 Zone' was used, and for Ogama-Rockland, a 'composite sample from fresh quartered drill core' was used, suggesting limited domain variability testing.

Evidence · text

> A 130 kg sample was collected from the L10 Zone

**Mill Route**

Polarity: neutral

Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\).

Why it applies: The metallurgical test work describes a flowsheet involving gravity, flotation, regrind, and cyanide leaching, which is characteristic of a mill processing route.

Evidence · text

> Gravity-Flotation-Regrind-Leach flowsheet

## Extracted facts

Stored fact records: 82. Some facts used in scoring do not have a stored record.

## Metallurgical Results (82)

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-0)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: gravity concentration
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: 130 kg sample from L10 Zone, Level 16

#### Recovery

- Recovery: 51 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: High gold recovery of 51.0% achieved via gravity concentration for the True North project, indicating a significant free gold component.

- Positive factor: High gravity recovery component

- Positive factor: Favorable processing characteristics

- Negative factor: Testing limited to single composite sample

Evidence · text

> Recovery averaging 51.0% Au by gravity concentration

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-1)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: flotation
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: 130 kg sample from L10 Zone, Level 16

#### Recovery

- Recovery: 44.5 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: An average of 44.5% of gold reported to the flotation concentrate for the True North project, indicating good amenability to flotation.

- Positive factor: Significant gold reporting to flotation concentrate

- Positive factor: Favorable processing characteristics

- Negative factor: Testing limited to single composite sample

Evidence · text

> An average of 44.5% of gold reporting to the flotation concentrate

### cyanide leach \(flotation concentrate\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-2)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: cyanide leach \(flotation concentrate\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: 130 kg sample from L10 Zone, Level 16

#### Recovery

- Recovery: 95.5 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: High leach recovery averaging 95.5% Au from the reground flotation concentrate for the True North project, indicating excellent amenability to cyanidation.

- Positive factor: High leach recovery from concentrate

- Positive factor: Favorable processing characteristics

- Negative factor: Testing limited to single composite sample

Evidence · text

> Leach recovery averaging 95.5% Au from the reground flotation concentrate

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-3)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: 130 kg sample from L10 Zone, Level 16

#### Recovery

- Recovery: 93.7 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recoveries averaging 93.7% for the True North project, indicating excellent overall metallurgical performance.

- Positive factor: High Recovery

- Positive factor: Favorable processing characteristics

- Negative factor: Testing limited to single composite sample

Evidence · text

> Total Au recoveries averaging 93.7 percent

### comminution

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-4)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: comminution
- Processing Route: grinding
- Sample: main composite
- Grind P80: 106 µm

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: A Ball Mill Work Index \(BMWI\) of 14.1 kWh/t indicates the True North ore is on the lower end of medium hardness, suggesting favorable grinding costs and potential for higher throughput.

- Positive factor: Low ore hardness

- Positive factor: Potential for higher throughput

Evidence · text

> Ball Mill Work Index \("BMWI"\) of 14.1 kilowatt hours per tonne \("kWh/t"\) indicating the low end of the medium hardness range

### environmental

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-5)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: environmental
- Processing Route: n/a
- Sample: main composite

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Environmental tests confirmed no potential for acid generation or measurable deleterious metal leaching from the True North ore, which is a positive for permitting and operational costs.

- Positive factor: No acid-generating potential

- Positive factor: No deleterious metal leaching potential

Evidence · text

> no acid-generating and deleterious metal leaching potential

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-6)

Ogama-Rockland · gold

#### Identity

- Project: Ogama-Rockland
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: preliminary
- Test Type: gravity concentration
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: composite sample from recent drill core

#### Recovery

- Recovery: 82 %
- Recovery Basis: actual\_test
- Head Grade: 4.65
- Head Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: High gold recovery of 82.0% achieved by gravity concentration for the Ogama-Rockland project, indicating a significant free gold component.

- Positive factor: High gravity recovery component

- Positive factor: Favorable processing characteristics

- Negative factor: Preliminary test work

- Negative factor: Testing limited to single composite sample

Evidence · text

> Gold recovery of 82.0% Au by gravity concentration

### cyanide leach \(flotation concentrate\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-7)

Ogama-Rockland · gold

#### Identity

- Project: Ogama-Rockland
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: preliminary
- Test Type: cyanide leach \(flotation concentrate\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: composite sample from recent drill core

#### Recovery

- Recovery: 97.7 %
- Recovery Basis: actual\_test
- Head Grade: 4.65
- Head Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: High gold recovery of 97.7% Au by leaching the reground flotation concentrate for the Ogama-Rockland project, indicating excellent amenability to cyanidation.

- Positive factor: High leach recovery from concentrate

- Positive factor: Favorable processing characteristics

- Negative factor: Preliminary test work

- Negative factor: Testing limited to single composite sample

Evidence · text

> Gold recovery of 97.7% Au by leaching the reground flotation concentrate

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-8)

Ogama-Rockland · gold

#### Identity

- Project: Ogama-Rockland
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: preliminary
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: composite sample from recent drill core
- Leach Time: 72 hours

#### Recovery

- Recovery: 96.3 %
- Recovery Basis: actual\_test
- Head Grade: 4.65
- Head Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 96.3% Au for the Ogama-Rockland project, indicating excellent overall metallurgical performance with a conventional flowsheet.

- Positive factor: High Recovery

- Positive factor: Favorable processing characteristics

- Negative factor: Preliminary test work

- Negative factor: Testing limited to single composite sample

Evidence · text

> Total Au recovery of 96.3% Au based on a Gravity-Flotation-Regrind-Leach flowsheet

### environmental

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-9)

Ogama-Rockland · gold

#### Identity

- Project: Ogama-Rockland
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: preliminary
- Test Type: environmental
- Processing Route: n/a
- Sample: composite sample from recent drill core

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Preliminary test work for Ogama-Rockland confirmed the clean nature of the material, which is amenable to high recoveries at the True North mill.

- Positive factor: Clean ore material

- Negative factor: Preliminary test work

Evidence · text

> confirmed the clean nature of material which is amenable to high recoveries at the True North mill

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-10)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: gravity concentration
- Processing Route: gravity, flotation
- Sample: Test T1 composite
- Grind P80: 147 µm

#### Recovery

- Recovery: 53.8 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.08
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Gravity recovery of 53.8% for Test T1 at 147 µm grind size, indicating good free gold liberation.

- Positive factor: High gravity recovery component

- Negative factor: Testing limited to single composite sample

Evidence · table

> 53.8 %

Context: 147

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-11)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: flotation
- Processing Route: gravity, flotation
- Sample: Test T1 composite
- Grind P80: 147 µm

#### Recovery

- Recovery: 41.8 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.08
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Flotation recovery of 41.8% for Test T1 at 147 µm grind size, contributing to overall gold recovery.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 41.8 %

Context: 147

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-12)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: gravity concentration
- Processing Route: gravity, flotation
- Sample: Test T4 composite
- Grind P80: 147 µm

#### Recovery

- Recovery: 24.9 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.06
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Gravity recovery of 24.9% for Test T4 at 147 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 24.9 %

Context: 147

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-13)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: flotation
- Processing Route: gravity, flotation
- Sample: Test T4 composite
- Grind P80: 147 µm

#### Recovery

- Recovery: 71.8 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.06
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Flotation recovery of 71.8% for Test T4 at 147 µm grind size, indicating strong flotation performance.

- Positive factor: High flotation recovery component

- Negative factor: Testing limited to single composite sample

Evidence · table

> 71.8 %

Context: 147

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-14)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: gravity concentration
- Processing Route: gravity, flotation
- Sample: Test T5 composite
- Grind P80: 147 µm

#### Recovery

- Recovery: 42.5 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.08
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Gravity recovery of 42.5% for Test T5 at 147 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 42.5 %

Context: 147

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-15)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: flotation
- Processing Route: gravity, flotation
- Sample: Test T5 composite
- Grind P80: 147 µm

#### Recovery

- Recovery: 53.1 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.08
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Flotation recovery of 53.1% for Test T5 at 147 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 53.1 %

Context: 147

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-16)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: gravity concentration
- Processing Route: gravity, flotation
- Sample: Test T2 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 57.1 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.06
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Gravity recovery of 57.1% for Test T2 at 112 µm grind size, indicating good free gold liberation.

- Positive factor: High gravity recovery component

- Negative factor: Testing limited to single composite sample

Evidence · table

> 57.1 %

Context: 112

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-17)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: flotation
- Processing Route: gravity, flotation
- Sample: Test T2 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 39.6 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.06
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Flotation recovery of 39.6% for Test T2 at 112 µm grind size, contributing to overall gold recovery.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 39.6 %

Context: 112

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-18)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: gravity concentration
- Processing Route: gravity, flotation
- Sample: Test T6 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 49 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.06
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Gravity recovery of 49.0% for Test T6 at 112 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 49.0 %

Context: 112

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-19)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: flotation
- Processing Route: gravity, flotation
- Sample: Test T6 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 47.7 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.06
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Flotation recovery of 47.7% for Test T6 at 112 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 47.7 %

Context: 112

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-20)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: gravity concentration
- Processing Route: gravity, flotation
- Sample: Test T7 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 38.4 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.09
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Gravity recovery of 38.4% for Test T7 at 112 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 38.4 %

Context: 112

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-21)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: flotation
- Processing Route: gravity, flotation
- Sample: Test T7 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 56.7 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.09
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Flotation recovery of 56.7% for Test T7 at 112 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 56.7 %

Context: 112

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-22)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: gravity concentration
- Processing Route: gravity, flotation
- Sample: Test T16 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 59.9 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.11
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Gravity recovery of 59.9% for Test T16 at 112 µm grind size, indicating good free gold liberation.

- Positive factor: High gravity recovery component

- Negative factor: Testing limited to single composite sample

Evidence · table

> 59.9 %

Context: 112

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-23)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: flotation
- Processing Route: gravity, flotation
- Sample: Test T16 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 34.1 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.11
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Flotation recovery of 34.1% for Test T16 at 112 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 34.1 %

Context: 112

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-24)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: gravity concentration
- Processing Route: gravity, flotation
- Sample: Test T17 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 55.8 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.14
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Gravity recovery of 55.8% for Test T17 at 112 µm grind size, indicating good free gold liberation.

- Positive factor: High gravity recovery component

- Negative factor: Testing limited to single composite sample

Evidence · table

> 55.8 %

Context: 112

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-25)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: flotation
- Processing Route: gravity, flotation
- Sample: Test T17 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 36.5 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.14
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Flotation recovery of 36.5% for Test T17 at 112 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 36.5 %

Context: 112

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-26)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: gravity concentration
- Processing Route: gravity, flotation
- Sample: Test T18 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 65.9 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.07
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Gravity recovery of 65.9% for Test T18 at 112 µm grind size, indicating very good free gold liberation.

- Positive factor: High gravity recovery component

- Negative factor: Testing limited to single composite sample

Evidence · table

> 65.9 %

Context: 112

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-27)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: flotation
- Processing Route: gravity, flotation
- Sample: Test T18 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 30.3 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.07
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Flotation recovery of 30.3% for Test T18 at 112 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 30.3 %

Context: 112

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-28)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: gravity concentration
- Processing Route: gravity, flotation
- Sample: Test T19 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 52.7 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.11
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Gravity recovery of 52.7% for Test T19 at 112 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 52.7 %

Context: 112

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-29)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: flotation
- Processing Route: gravity, flotation
- Sample: Test T19 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 41.3 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.11
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Flotation recovery of 41.3% for Test T19 at 112 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 41.3 %

Context: 112

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-30)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: gravity concentration
- Processing Route: gravity, flotation
- Sample: Test T20 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 49.3 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.11
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Gravity recovery of 49.3% for Test T20 at 112 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 49.3 %

Context: 112

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-31)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: flotation
- Processing Route: gravity, flotation
- Sample: Test T20 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 44.7 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.11
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Flotation recovery of 44.7% for Test T20 at 112 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 44.7 %

Context: 112

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-32)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: gravity concentration
- Processing Route: gravity, flotation
- Sample: Test T21 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 50.7 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.08
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Gravity recovery of 50.7% for Test T21 at 112 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 50.7 %

Context: 112

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-33)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: flotation
- Processing Route: gravity, flotation
- Sample: Test T21 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 44.9 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.08
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Flotation recovery of 44.9% for Test T21 at 112 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 44.9 %

Context: 112

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-34)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: gravity concentration
- Processing Route: gravity, flotation
- Sample: Test T3 composite
- Grind P80: 87 µm

#### Recovery

- Recovery: 61.1 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.05
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Gravity recovery of 61.1% for Test T3 at 87 µm grind size, indicating very good free gold liberation.

- Positive factor: High gravity recovery component

- Negative factor: Testing limited to single composite sample

Evidence · table

> 61.1 %

Context: 87

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-35)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: flotation
- Processing Route: gravity, flotation
- Sample: Test T3 composite
- Grind P80: 87 µm

#### Recovery

- Recovery: 36.2 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.05
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Flotation recovery of 36.2% for Test T3 at 87 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 36.2 %

Context: 87

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-36)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: gravity concentration
- Processing Route: gravity, flotation
- Sample: Test T8 composite
- Grind P80: 87 µm

#### Recovery

- Recovery: 55.1 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.04
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Gravity recovery of 55.1% for Test T8 at 87 µm grind size, indicating good free gold liberation.

- Positive factor: High gravity recovery component

- Negative factor: Testing limited to single composite sample

Evidence · table

> 55.1 %

Context: 87

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-37)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: flotation
- Processing Route: gravity, flotation
- Sample: Test T8 composite
- Grind P80: 87 µm

#### Recovery

- Recovery: 42.7 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.04
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Flotation recovery of 42.7% for Test T8 at 87 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 42.7 %

Context: 87

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-38)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: gravity concentration
- Processing Route: gravity, flotation
- Sample: Test T9 composite
- Grind P80: 87 µm

#### Recovery

- Recovery: 49.3 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.09
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Gravity recovery of 49.3% for Test T9 at 87 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 49.3 %

Context: 87

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-39)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: flotation
- Processing Route: gravity, flotation
- Sample: Test T9 composite
- Grind P80: 87 µm

#### Recovery

- Recovery: 45.8 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.09
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Flotation recovery of 45.8% for Test T9 at 87 µm grind size.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 45.8 %

Context: 87

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-40)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: gravity concentration
- Processing Route: gravity, flotation
- Sample: Average composite

#### Recovery

- Recovery: 51 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.08
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Average gravity recovery of 51.0% for True North, indicating a significant free gold component across various grind sizes.

- Positive factor: High gravity recovery component

- Negative factor: Testing limited to single composite sample

Evidence · table

> 51.0 %

Context: Average

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-41)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: flotation
- Processing Route: gravity, flotation
- Sample: Average composite

#### Recovery

- Recovery: 44.5 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t
- Tailings Grade: 0.08
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Average flotation recovery of 44.5% for True North, contributing significantly to overall gold recovery.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 44.5 %

Context: Average

### cyanide leach \(flotation concentrate\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-42)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: cyanide leach \(flotation concentrate\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T10 composite
- Grind P80: 147 µm

#### Recovery

- Recovery: 93.1 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 1.6 kg/t
- Lime: 2.8 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Leach recovery of 93.1% for Test T10 \(flotation concentrate\) at 147 µm primary grind and 21 µm regrind, with moderate reagent consumption.

- Positive factor: High leach recovery

- Positive factor: Moderate reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 93.1 %

Context: T10

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-43)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T10 composite
- Grind P80: 147 µm

#### Recovery

- Recovery: 91.8 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 1.6 kg/t
- Lime: 2.8 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 91.8% for Test T10 \(gravity + flotation + leach\) at 147 µm primary grind and 21 µm regrind, with moderate reagent consumption.

- Positive factor: High Recovery

- Positive factor: Moderate reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 91.8 %

Context: T10

### cyanide leach \(flotation concentrate\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-44)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: cyanide leach \(flotation concentrate\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T11 composite
- Grind P80: 147 µm

#### Recovery

- Recovery: 84.5 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 2 kg/t
- Lime: 1.5 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Leach recovery of 84.5% for Test T11 \(flotation concentrate\) at 147 µm primary grind without regrind, with moderate reagent consumption.

- Positive factor: Moderate reagent consumption

- Negative factor: Lower leach recovery without regrind

- Negative factor: Testing limited to single composite sample

Evidence · table

> 84.5 %

Context: T11

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-45)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T11 composite
- Grind P80: 147 µm

#### Recovery

- Recovery: 85.5 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 2 kg/t
- Lime: 1.5 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 85.5% for Test T11 \(gravity + flotation + leach\) at 147 µm primary grind without regrind, with moderate reagent consumption.

- Positive factor: Moderate reagent consumption

- Negative factor: Lower total recovery without regrind

- Negative factor: Testing limited to single composite sample

Evidence · table

> 85.5 %

Context: T11

### cyanide leach \(flotation concentrate\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-46)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: cyanide leach \(flotation concentrate\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T12 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 93.9 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 1.9 kg/t
- Lime: 1.3 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Leach recovery of 93.9% for Test T12 \(flotation concentrate\) at 112 µm primary grind and 22 µm regrind, with moderate reagent consumption.

- Positive factor: High leach recovery

- Positive factor: Moderate reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 93.9 %

Context: T12

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-47)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T12 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 93.8 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 1.9 kg/t
- Lime: 1.3 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 93.8% for Test T12 \(gravity + flotation + leach\) at 112 µm primary grind and 22 µm regrind, with moderate reagent consumption.

- Positive factor: High Recovery

- Positive factor: Moderate reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 93.8 %

Context: T12

### cyanide leach \(flotation concentrate\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-48)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: cyanide leach \(flotation concentrate\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T13 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 82.3 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 1.9 kg/t
- Lime: 1.3 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Leach recovery of 82.3% for Test T13 \(flotation concentrate\) at 112 µm primary grind without regrind, with moderate reagent consumption.

- Positive factor: Moderate reagent consumption

- Negative factor: Lower leach recovery without regrind

- Negative factor: Testing limited to single composite sample

Evidence · table

> 82.3 %

Context: T13

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-49)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T13 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 88.3 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 1.9 kg/t
- Lime: 1.3 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 88.3% for Test T13 \(gravity + flotation + leach\) at 112 µm primary grind without regrind, with moderate reagent consumption.

- Positive factor: Moderate reagent consumption

- Negative factor: Lower total recovery without regrind

- Negative factor: Testing limited to single composite sample

Evidence · table

> 88.3 %

Context: T13

### cyanide leach \(flotation concentrate\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-50)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: cyanide leach \(flotation concentrate\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T22 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 91.8 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 0.7 kg/t
- Lime: 1.7 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Leach recovery of 91.8% for Test T22 \(flotation concentrate\) at 112 µm primary grind and 21 µm regrind, with low cyanide consumption.

- Positive factor: High leach recovery

- Positive factor: Low reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 91.8 %

Context: T22

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-51)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T22 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 92.8 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 0.7 kg/t
- Lime: 1.7 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 92.8% for Test T22 \(gravity + flotation + leach\) at 112 µm primary grind and 21 µm regrind, with low cyanide consumption.

- Positive factor: High Recovery

- Positive factor: Low reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 92.8 %

Context: T22

### cyanide leach \(flotation concentrate\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-52)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: cyanide leach \(flotation concentrate\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T23 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 93.9 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 0.9 kg/t
- Lime: 7.5 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Leach recovery of 93.9% for Test T23 \(flotation concentrate\) at 112 µm primary grind and 22 µm regrind, with moderate reagent consumption.

- Positive factor: High leach recovery

- Positive factor: Moderate reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 93.9 %

Context: T23

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-53)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T23 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 93.8 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 0.9 kg/t
- Lime: 7.5 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 93.8% for Test T23 \(gravity + flotation + leach\) at 112 µm primary grind and 22 µm regrind, with moderate reagent consumption.

- Positive factor: High Recovery

- Positive factor: Moderate reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 93.8 %

Context: T23

### cyanide leach \(flotation concentrate\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-54)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: cyanide leach \(flotation concentrate\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T24 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 94.3 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 1.1 kg/t
- Lime: 1.7 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Leach recovery of 94.3% for Test T24 \(flotation concentrate\) at 112 µm primary grind and 21 µm regrind, with moderate reagent consumption.

- Positive factor: High leach recovery

- Positive factor: Moderate reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 94.3 %

Context: T24

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-55)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T24 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 94 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 1.1 kg/t
- Lime: 1.7 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 94.0% for Test T24 \(gravity + flotation + leach\) at 112 µm primary grind and 21 µm regrind, with moderate reagent consumption.

- Positive factor: High Recovery

- Positive factor: Moderate reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 94.0 %

Context: T24

### cyanide leach \(flotation concentrate\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-56)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: cyanide leach \(flotation concentrate\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T25 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 93.4 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 1 kg/t
- Lime: 1.3 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Leach recovery of 93.4% for Test T25 \(flotation concentrate\) at 112 µm primary grind and 24 µm regrind, with moderate reagent consumption.

- Positive factor: High leach recovery

- Positive factor: Moderate reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 93.4 %

Context: T25

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-57)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T25 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 93.6 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 1 kg/t
- Lime: 1.3 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 93.6% for Test T25 \(gravity + flotation + leach\) at 112 µm primary grind and 24 µm regrind, with moderate reagent consumption.

- Positive factor: High Recovery

- Positive factor: Moderate reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 93.6 %

Context: T25

### cyanide leach \(flotation concentrate\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-58)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: cyanide leach \(flotation concentrate\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T26 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 93.7 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 0.5 kg/t
- Lime: 8.3 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Leach recovery of 93.7% for Test T26 \(flotation concentrate\) at 112 µm primary grind and 23 µm regrind, with low cyanide consumption.

- Positive factor: High leach recovery

- Positive factor: Low reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 93.7 %

Context: T26

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-59)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T26 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 93.7 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 0.5 kg/t
- Lime: 8.3 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 93.7% for Test T26 \(gravity + flotation + leach\) at 112 µm primary grind and 23 µm regrind, with low cyanide consumption.

- Positive factor: High Recovery

- Positive factor: Low reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 93.7 %

Context: T26

### cyanide leach \(flotation concentrate\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-60)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: cyanide leach \(flotation concentrate\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T27 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 93 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 1 kg/t
- Lime: 1.2 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Leach recovery of 93.0% for Test T27 \(flotation concentrate\) at 112 µm primary grind and 26 µm regrind, with moderate reagent consumption.

- Positive factor: High leach recovery

- Positive factor: Moderate reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 93.0 %

Context: T27

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-61)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T27 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 93.4 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 1 kg/t
- Lime: 1.2 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 93.4% for Test T27 \(gravity + flotation + leach\) at 112 µm primary grind and 26 µm regrind, with moderate reagent consumption.

- Positive factor: High Recovery

- Positive factor: Moderate reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 93.4 %

Context: T27

### cyanide leach \(flotation concentrate\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-62)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: cyanide leach \(flotation concentrate\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T14 composite
- Grind P80: 87 µm

#### Recovery

- Recovery: 92.3 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 1.8 kg/t
- Lime: 1.2 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Leach recovery of 92.3% for Test T14 \(flotation concentrate\) at 87 µm primary grind and 21 µm regrind, with moderate reagent consumption.

- Positive factor: High leach recovery

- Positive factor: Moderate reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 92.3 %

Context: T14

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-63)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T14 composite
- Grind P80: 87 µm

#### Recovery

- Recovery: 94.5 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 1.8 kg/t
- Lime: 1.2 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 94.5% for Test T14 \(gravity + flotation + leach\) at 87 µm primary grind and 21 µm regrind, with moderate reagent consumption.

- Positive factor: High Recovery

- Positive factor: Moderate reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 94.5 %

Context: T14

### cyanide leach \(flotation concentrate\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-64)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: cyanide leach \(flotation concentrate\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T15 composite
- Grind P80: 87 µm

#### Recovery

- Recovery: 96.6 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 1.7 kg/t
- Lime: 1 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Leach recovery of 96.6% for Test T15 \(flotation concentrate\) at 87 µm primary grind without regrind, with moderate reagent consumption.

- Positive factor: High leach recovery

- Positive factor: Moderate reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 96.6 %

Context: T15

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-65)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T15 composite
- Grind P80: 87 µm

#### Recovery

- Recovery: 96.3 %
- Recovery Basis: actual\_test

#### Reagents

- Cyanide: 1.7 kg/t
- Lime: 1 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 96.3% for Test T15 \(gravity + flotation + leach\) at 87 µm primary grind without regrind, with moderate reagent consumption.

- Positive factor: High Recovery

- Positive factor: Moderate reagent consumption

- Negative factor: Testing limited to single composite sample

Evidence · table

> 96.3 %

Context: T15

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-66)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: Gravity Float Leach
- Sample: Primary Grind 147 µm with Gravity Float Leach
- Grind P80: 147 µm

#### Recovery

- Recovery: 87.5 %
- Recovery Basis: actual\_test

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 87.5% for True North with 147 µm primary grind using gravity-flotation-leach method.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 87.5 %

Context: 147

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-67)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: Gravity Float Leach Regrind
- Sample: Primary Grind 147 µm with Gravity Float Leach Regrind
- Grind P80: 147 µm

#### Recovery

- Recovery: 92.6 %
- Recovery Basis: actual\_test

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 92.6% for True North with 147 µm primary grind and regrind, showing a 5.1% increase from non-regrind scenario.

- Positive factor: High Recovery

- Positive factor: Recovery Improving

- Negative factor: Testing limited to single composite sample

Evidence · table

> 92.6 %

Context: 147

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-68)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: Gravity Float Leach
- Sample: Primary Grind 112 µm with Gravity Float Leach
- Grind P80: 112 µm

#### Recovery

- Recovery: 85.6 %
- Recovery Basis: actual\_test

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 85.6% for True North with 112 µm primary grind using gravity-flotation-leach method.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 85.6 %

Context: 112

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-69)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: Gravity Float Leach Regrind
- Sample: Primary Grind 112 µm with Gravity Float Leach Regrind
- Grind P80: 112 µm

#### Recovery

- Recovery: 93.6 %
- Recovery Basis: actual\_test

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 93.6% for True North with 112 µm primary grind and regrind, showing an 8.0% increase from non-regrind scenario.

- Positive factor: High Recovery

- Positive factor: Recovery Improving

- Negative factor: Testing limited to single composite sample

Evidence · table

> 93.6 %

Context: 112

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-70)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: Gravity Float Leach
- Sample: Primary Grind 87 µm with Gravity Float Leach
- Grind P80: 87 µm

#### Recovery

- Recovery: 92.7 %
- Recovery Basis: actual\_test

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 92.7% for True North with 87 µm primary grind using gravity-flotation-leach method.

- Positive factor: High Recovery

- Negative factor: Testing limited to single composite sample

Evidence · table

> 92.7 %

Context: 87

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-71)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: Gravity Float Leach Regrind
- Sample: Primary Grind 87 µm with Gravity Float Leach Regrind
- Grind P80: 87 µm

#### Recovery

- Recovery: 94.6 %
- Recovery Basis: actual\_test

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 94.6% for True North with 87 µm primary grind and regrind, showing a 1.9% increase from non-regrind scenario.

- Positive factor: High Recovery

- Positive factor: Recovery Improving

- Negative factor: Testing limited to single composite sample

Evidence · table

> 94.6 %

Context: 87

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-72)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T4, T10 composite
- Grind P80: 147 µm

#### Recovery

- Recovery: 92.7 %
- Recovery Basis: actual\_test
- Head Grade: 1.51
- Head Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 92.7% for Test T4, T10 at 147 µm primary grind and 21 µm regrind.

- Positive factor: High Recovery

- Negative factor: Testing limited to single composite sample

Evidence · table

> 92.7

Context: T4, T10

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-73)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T5, T11 composite
- Grind P80: 147 µm

#### Recovery

- Recovery: 86.3 %
- Recovery Basis: actual\_test
- Head Grade: 1.6
- Head Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 86.3% for Test T5, T11 at 147 µm primary grind without regrind.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 86.3

Context: T5, T11

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-74)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T6, T12 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 93.7 %
- Recovery Basis: actual\_test
- Head Grade: 1.66
- Head Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 93.7% for Test T6, T12 at 112 µm primary grind and 22 µm regrind.

- Positive factor: High Recovery

- Negative factor: Testing limited to single composite sample

Evidence · table

> 93.7

Context: T6, T12

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-75)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T7, T13 composite
- Grind P80: 112 µm

#### Recovery

- Recovery: 85.6 %
- Recovery Basis: actual\_test
- Head Grade: 1.59
- Head Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 85.6% for Test T7, T13 at 112 µm primary grind without regrind.

- Negative factor: Testing limited to single composite sample

Evidence · table

> 85.6

Context: T7, T13

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-76)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T8, T14 composite
- Grind P80: 87 µm

#### Recovery

- Recovery: 94.7 %
- Recovery Basis: actual\_test
- Head Grade: 1.82
- Head Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 94.7% for Test T8, T14 at 87 µm primary grind and 26 µm regrind.

- Positive factor: High Recovery

- Negative factor: Testing limited to single composite sample

Evidence · table

> 94.7

Context: T8, T14

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-77)

True North · gold

#### Identity

- Project: True North
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: optimization
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test T9, T15 composite
- Grind P80: 87 µm

#### Recovery

- Recovery: 92.7 %
- Recovery Basis: actual\_test
- Head Grade: 1.46
- Head Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 92.7% for Test T9, T15 at 87 µm primary grind without regrind.

- Positive factor: High Recovery

- Negative factor: Testing limited to single composite sample

Evidence · table

> 92.7

Context: T9, T15

### gravity concentration

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-78)

Ogama-Rockland · gold

#### Identity

- Project: Ogama-Rockland
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: preliminary
- Test Type: gravity concentration
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test 7885-03 composite
- Grind P80: 101 µm

#### Recovery

- Recovery: 82 %
- Recovery Basis: actual\_test
- Head Grade: 4.65
- Head Grade Unit: g/t
- Tailings Grade: 0.17
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Gravity recovery of 82.0% for Test 7885-03 at 101 µm grind size, indicating a very high free gold component for Ogama-Rockland.

- Positive factor: High gravity recovery component

- Negative factor: Preliminary test work

- Negative factor: Testing limited to single composite sample

Evidence · table

> 82.0 %

Context: 7885-03

### flotation

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-79)

Ogama-Rockland · gold

#### Identity

- Project: Ogama-Rockland
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: preliminary
- Test Type: flotation
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test 7885-03 composite
- Grind P80: 101 µm

#### Recovery

- Recovery: 15 %
- Recovery Basis: actual\_test
- Head Grade: 4.65
- Head Grade Unit: g/t
- Tailings Grade: 0.17
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Flotation recovery of 15.0% for Test 7885-03 at 101 µm grind size, contributing to overall gold recovery for Ogama-Rockland.

- Negative factor: Preliminary test work

- Negative factor: Testing limited to single composite sample

Evidence · table

> 15 %

Context: 7885-03

### cyanide leach \(flotation concentrate\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-80)

Ogama-Rockland · gold

#### Identity

- Project: Ogama-Rockland
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: preliminary
- Test Type: cyanide leach \(flotation concentrate\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test 7885-03 composite
- Grind P80: 101 µm

#### Recovery

- Recovery: 97.7 %
- Recovery Basis: actual\_test
- Head Grade: 4.65
- Head Grade Unit: g/t
- Tailings Grade: 0.17
- Tailings Grade Unit: g/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Leach recovery of 97.7% for Test 7885-03 \(flotation concentrate\) at 101 µm grind size, indicating excellent amenability to cyanidation for Ogama-Rockland.

- Positive factor: High leach recovery

- Negative factor: Preliminary test work

- Negative factor: Testing limited to single composite sample

Evidence · table

> 97.7 %

Context: 7885-03

### total recovery \(gravity + flotation + leach\)

[Link to this fact](https://atlas-staging.minestarters.com/news/06-02-et-1911-gold-reports-positive-metallurgical-results-of-93-7-for-true-north--52d492ce-c01c-4eea-8e15-f2f29453908e#fact-metallurgical-facts-81)

Ogama-Rockland · gold

#### Identity

- Project: Ogama-Rockland
- Commodity: gold
- Ticker: AUMB

#### Test Work

- Program Status: preliminary
- Test Type: total recovery \(gravity + flotation + leach\)
- Processing Route: gravity, flotation, regrind, cyanide leach
- Sample: Test 7885-03 composite
- Grind P80: 101 µm

#### Recovery

- Recovery: 96.3 %
- Recovery Basis: actual\_test
- Head Grade: 4.65
- Head Grade Unit: g/t
- Tailings Grade: 0.17
- Tailings Grade Unit: g/t

#### Reagents

- Cyanide: 6.4 kg/t
- Lime: 1.7 kg/t

#### Lab

- Laboratory: ALS Canada Ltd. \(Metallurgy Services\)

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-20T00:00:00.000Z

Reasoning: Total gold recovery of 96.3% for Test 7885-03 \(gravity + flotation + leach\) at 101 µm primary grind and 21 µm regrind, with moderate reagent consumption for Ogama-Rockland.

- Positive factor: High Recovery

- Positive factor: Moderate reagent consumption

- Negative factor: Preliminary test work

- Negative factor: Testing limited to single composite sample

Evidence · table

> 96.3 %

Context: 7885-03

## 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.