# Positive Metallurgical Results from Initial Testwork with Dundee Sustainable Technologies

Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/positive-metallurgical-results-from-initial-testwork-with-dundee-sustainable-tec--443c5217-e37c-4db9-84ed-3bce00bcd69d

Original source: https://money.tmx.com/en/quote/FVL/news/5212298572725016/positive-metallurgical-results-from-initial-testwork-with-dundee-sustainable-tec

Publisher: tmx

Original announcement: 2025-12-16T11:00:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- Company: Freegold Ventures Limited

- Ticker: FVL

- Exchange: TSX

- Region: Alaska

- Primary commodity: Gold

- Secondary commodities: Arsenic, Sulfur

- Document categories: Metallurgy, Resource update

- Extracted: 2026-09-12 04:46:38 UTC

Narrative sentiment: 0.80 · Bullish

## Minestarters Atlas summary

Freegold Ventures reported successful metallurgical testwork using the GlassLock Process™ on Golden Summit concentrate, achieving a 98% reduction in arsenic content and a 47% increase in gold concentrate grade. The results support the development of a saleable, direct-to-smelter concentrate and will inform the upcoming Pre-Feasibility Study.

Reasoning: The GlassLock Process™ successfully addressed high arsenic levels \(7.34% to 0.17%\) while upgrading gold concentrate grade, significantly de-risking the project's metallurgical flowsheet for the upcoming PFS.

- Positive factor: Significant arsenic reduction \(98%\)

- Positive factor: Gold concentrate grade upgrade \(47%\)

- Positive factor: High recovery \(>90%\) for oxidation processes

- Positive factor: Produces stable, non-toxic arsenic byproduct

- Negative factor: Testing performed on a small 1kg sample

Facts used in scoring: 5

## Classification and evidence

**High Recovery**

Polarity: positive

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

Why it applies: Three oxidation processes tested prior to GlassLock showed recoveries exceeding 90%.

Evidence · text

> The three oxidation processes tested prior to the GlassLock Process™, have all shown recoveries exceeding 90%.

**Resource Update**

Polarity: neutral

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

Why it applies: The document references the July 2025 MRE and discusses upcoming revisions based on 2025/2026 drilling.

Evidence · text

> The data from the 2025 and early 2026 drilling programs will be used to revise the mineral resource estimate \(MRE\) published in July 2025

**Mill Route**

Polarity: neutral

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

Why it applies: the document describes a mill\_cil route \("CIL"\)

**Gravity Route**

Polarity: neutral

Definition: Gravity separation forms a material part of the flowsheet.

Why it applies: the document describes a gravity route \("gravity"\)

**Single Domain Only**

Polarity: negative

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

Why it applies: only one composite was tested

## Extracted facts

Stored fact records: 5. Some facts used in scoring do not have a stored record.

## Resource Estimates (2)

### indicated

[Link to this fact](https://atlas-extractions.minestarters.com/news/positive-metallurgical-results-from-initial-testwork-with-dundee-sustainable-tec--443c5217-e37c-4db9-84ed-3bce00bcd69d#fact-resource-facts-3)

Golden Summit Project · gold

Historical result

Needs review: historical\_restatement

#### Identity

- Project: Golden Summit Project
- Commodity: gold
- Region: usa\_ak
- Reported Region: Alaska
- Ticker: FVL

#### Resource scope

- Estimate type: resource
- Resource group id: resource:fbabe1d0f24a582c05ec

#### Resource Data

- Category: indicated
- Tonnes: 34150000000
- Grade: 1.24
- Grade Unit: g/t
- Contained Metal: 13600000
- Contained Unit: oz
- Cutoff Grade: 0.5
- Cutoff Unit: g/t

#### Review

- Needs Review: Yes
- Review Reason: historical\_restatement
- Historical: Yes
- Historical Source Date: 2025-07-01T00:00:00.000Z

#### Dates

- Event date: 2025-12-16T00:00:00.000Z

Reasoning: Historical resource stated for comparison.

Evidence · text

> indicated 17.2 million ounces at 1.24 g/t Au \(indicated\)

#### Tags used in scoring

**Indicated Resource**

Polarity: positive

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

Why it applies: category is "indicated"

**Cut-off Disclosed**

Polarity: positive

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

Why it applies: cutoff\_grade is stated

**PFS-Supporting**

Polarity: neutral

Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

**DFS-Supporting**

Polarity: neutral

Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

### inferred

[Link to this fact](https://atlas-extractions.minestarters.com/news/positive-metallurgical-results-from-initial-testwork-with-dundee-sustainable-tec--443c5217-e37c-4db9-84ed-3bce00bcd69d#fact-resource-facts-4)

Golden Summit Project · gold

Historical result

Needs review: historical\_restatement

#### Identity

- Project: Golden Summit Project
- Commodity: gold
- Region: usa\_ak
- Reported Region: Alaska
- Ticker: FVL

#### Resource scope

- Estimate type: resource
- Resource group id: resource:9076d88c96188dcae162

#### Resource Data

- Category: inferred
- Tonnes: 23750000000
- Grade: 1.04
- Grade Unit: g/t
- Contained Metal: 7700000
- Contained Unit: oz
- Cutoff Grade: 0.5
- Cutoff Unit: g/t

#### Review

- Needs Review: Yes
- Review Reason: historical\_restatement
- Historical: Yes
- Historical Source Date: 2025-07-01T00:00:00.000Z

#### Dates

- Event date: 2025-12-16T00:00:00.000Z

Reasoning: Historical resource stated for comparison.

Evidence · text

> 11.9 million ounces at 1.04 g/t Au \(inferred\)

#### Tags used in scoring

**Inferred Resource**

Polarity: negative

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

Why it applies: category is "inferred"

**Cut-off Disclosed**

Polarity: positive

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

Why it applies: cutoff\_grade is stated

**PFS-Supporting**

Polarity: neutral

Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.

Why it applies: the release names the study this estimate supports

**DFS-Supporting**

Polarity: neutral

Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.

Why it applies: the release names the study this estimate supports

## Metallurgical Results (3)

### locked-cycle flotation

[Link to this fact](https://atlas-extractions.minestarters.com/news/positive-metallurgical-results-from-initial-testwork-with-dundee-sustainable-tec--443c5217-e37c-4db9-84ed-3bce00bcd69d#fact-metallurgical-facts-0)

Golden Summit Project · gold

#### Identity

- Project: Golden Summit Project
- Commodity: gold
- Region: usa\_ak
- Reported Region: Alaska
- Ticker: FVL

#### Test Work

- Program Status: preliminary
- Test Type: locked-cycle flotation
- Processing Route: GlassLock Process™
- Sample: gold-bearing sulphide concentrate from locked-cycle flotation testwork at BaseMet Labs

#### Recovery

- Recovery: 90 %
- Conc. Grade: 24.7
- Conc. Grade Unit: g/t Au

#### Lab

- Laboratory: Dundee Sustainable Technologies
- Consultant: Dundee Sustainable Technologies

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2025-12-16T00:00:00.000Z

Reasoning: High-grade concentrate achieved with no measurable gold loss during the arsenic removal process.

- Positive factor: Concentrate grade increased by 47%

- Positive factor: No measurable gold loss reported

Evidence · text

> The gold grade of the concentrate increased by 47%, reaching 24.7g/t Au, with no measurable gold loss

#### Tags used in scoring

**Mill Route**

Polarity: neutral

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

Why it applies: processing\_route matches the flotation signal

**Byproduct Commodity**

Polarity: neutral

Definition: The tested commodity is a byproduct rather than the primary economic driver.

Why it applies: the release describes a byproduct credit

### locked-cycle flotation

[Link to this fact](https://atlas-extractions.minestarters.com/news/positive-metallurgical-results-from-initial-testwork-with-dundee-sustainable-tec--443c5217-e37c-4db9-84ed-3bce00bcd69d#fact-metallurgical-facts-1)

Golden Summit Project · arsenic

#### Identity

- Project: Golden Summit Project
- Commodity: arsenic
- Region: usa\_ak
- Reported Region: Alaska
- Ticker: FVL

#### Test Work

- Program Status: preliminary
- Test Type: locked-cycle flotation
- Processing Route: GlassLock Process™
- Sample: gold-bearing sulphide concentrate from locked-cycle flotation testwork at BaseMet Labs

#### Recovery

- Head Grade: 7.34
- Head Grade Unit: %
- Conc. Grade: 0.17
- Conc. Grade Unit: %

#### Lab

- Laboratory: Dundee Sustainable Technologies
- Consultant: Dundee Sustainable Technologies

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2025-12-16T00:00:00.000Z

Reasoning: Successful removal of high arsenic levels to a level suitable for direct-to-smelter sale.

- Positive factor: 98% reduction in arsenic content

Evidence · text

> Arsenic content was significantly lowered from 7.34% to 0.17%, representing a reduction of over 98%

#### Tags used in scoring

**Mill Route**

Polarity: neutral

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

Why it applies: processing\_route matches the flotation signal

**Byproduct Commodity**

Polarity: neutral

Definition: The tested commodity is a byproduct rather than the primary economic driver.

Why it applies: the release describes a byproduct credit

### locked-cycle flotation

[Link to this fact](https://atlas-extractions.minestarters.com/news/positive-metallurgical-results-from-initial-testwork-with-dundee-sustainable-tec--443c5217-e37c-4db9-84ed-3bce00bcd69d#fact-metallurgical-facts-2)

Golden Summit Project · sulfur

#### Identity

- Project: Golden Summit Project
- Commodity: sulfur
- Region: usa\_ak
- Reported Region: Alaska
- Ticker: FVL

#### Test Work

- Program Status: preliminary
- Test Type: locked-cycle flotation
- Processing Route: GlassLock Process™
- Sample: gold-bearing sulphide concentrate from locked-cycle flotation testwork at BaseMet Labs

#### Recovery

- Head Grade: 28.8
- Head Grade Unit: %
- Conc. Grade: 20.8
- Conc. Grade Unit: %

#### Lab

- Laboratory: Dundee Sustainable Technologies
- Consultant: Dundee Sustainable Technologies

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2025-12-16T00:00:00.000Z

Reasoning: Reduction in sulphur levels contributes to concentrate quality.

- Positive factor: 39% reduction in sulphide sulphur

Evidence · text

> Sulphide sulphur levels decreased from 28.8% to 20.8%, a 39% reduction

#### Tags used in scoring

**Mill Route**

Polarity: neutral

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

Why it applies: processing\_route matches the flotation signal

**Byproduct Commodity**

Polarity: neutral

Definition: The tested commodity is a byproduct rather than the primary economic driver.

Why it applies: the release describes a byproduct credit

## 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.