# PTX Metals Demonstrates 97% Copper Recovery from Locked Cycle Test at W2 Copper-Nickel-PGE Project

Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/ptx-metals-demonstrates-97-copper-recovery-from-locked-cycle-test-at-w2-copper-n--4e80c021-6c71-41cc-ae62-ea975449b559

Original source: https://money.tmx.com/en/quote/PTX/news/6683516976105327/ptx-metals-demonstrates-97-copper-recovery-from-locked-cycle-test-at-w2-copper-n

Publisher: tmx

Original announcement: 2026-08-17T12:07:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- Company: PTX Metals Inc.

- Ticker: PTX

- Exchange: TSX

- Region: Northern Ontario

- Primary commodity: Copper

- Secondary commodities: Nickel, Cobalt, Palladium, Platinum, Gold

- Document categories: Metallurgy

- Extracted: 2026-09-14 18:32:23 UTC

Narrative sentiment: 0.80 · Bullish

## Minestarters Atlas summary

PTX Metals has announced successful results from its first locked cycle test at the W2 Copper-Nickel-PGE Project in Northern Ontario. The test achieved a 97% copper recovery to a 28% Cu concentrate using a simple flotation flowsheet, though precious metal recoveries \(Pd and Au\) were lower.

Reasoning: The locked cycle test successfully demonstrated high copper recovery and concentrate grade using a simple flotation flowsheet, providing significant technical validation for the W2 project.

- Positive factor: High copper recovery \(97%\)

- Positive factor: Strong copper concentrate grade \(28%\)

- Positive factor: Successful locked cycle test simulating continuous processing

- Positive factor: Simple flowsheet achieved results

- Negative factor: Lower precious metal recoveries \(Pd 70%, Au 54%\)

- Negative factor: Nickel circuit not tested due to mass limitations

Facts used in scoring: 4

## Classification and evidence

**High Recovery**

Polarity: positive

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

Why it applies: 97% copper recovery is exceptional for the commodity and flotation route.

Evidence · text

> 97% copper recovery

**Mill Route**

Polarity: neutral

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

Why it applies: The process involves grinding and flotation cleaning.

Evidence · text

> subjected the ground pulp to a rougher and three stages of flotation cleaning

**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: 4. Some facts used in scoring do not have a stored record.

## Metallurgical Results (4)

### locked-cycle

[Link to this fact](https://atlas-extractions.minestarters.com/news/ptx-metals-demonstrates-97-copper-recovery-from-locked-cycle-test-at-w2-copper-n--4e80c021-6c71-41cc-ae62-ea975449b559#fact-metallurgical-facts-0)

W2 Copper-Nickel-PGE Project · copper

#### Identity

- Project: W2 Copper-Nickel-PGE Project
- Commodity: copper
- Region: canada\_on
- Reported Region: Northern Ontario
- Ticker: PTX

#### Test Work

- Program Status: preliminary
- Test Type: locked-cycle
- Processing Route: rougher and three stages of flotation cleaning
- Sample: Locked Cycle Test sample
- Grind P80: 50 µm

#### Recovery

- Recovery: 97 %
- Recovery Basis: actual\_test
- Head Grade: 0.78
- Head Grade Unit: %
- Conc. Grade: 28
- Conc. Grade Unit: %

#### Lab

- Laboratory: SGS Lakefield

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-17T00:00:00.000Z

Reasoning: 97% copper recovery to a 28% concentrate is a very strong result for a preliminary locked cycle test.

- Positive factor: 97% recovery is exceptional for the commodity

Evidence · table

> 97

Context: Locked Cycle Test

#### 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

**High Recovery**

Polarity: positive

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

Why it applies: 97% is at or above the exceptional band \(92%\)

### locked-cycle

[Link to this fact](https://atlas-extractions.minestarters.com/news/ptx-metals-demonstrates-97-copper-recovery-from-locked-cycle-test-at-w2-copper-n--4e80c021-6c71-41cc-ae62-ea975449b559#fact-metallurgical-facts-1)

W2 Copper-Nickel-PGE Project · palladium

#### Identity

- Project: W2 Copper-Nickel-PGE Project
- Commodity: palladium
- Region: canada\_on
- Reported Region: Northern Ontario
- Ticker: PTX

#### Test Work

- Program Status: preliminary
- Test Type: locked-cycle
- Sample: Locked Cycle Test sample
- Grind P80: 50 µm

#### Recovery

- Recovery: 70 %
- Recovery Basis: actual\_test
- Head Grade: 0.3
- Head Grade Unit: g/t
- Conc. Grade: 7.2
- Conc. Grade Unit: g/t

#### Lab

- Laboratory: SGS Lakefield

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-17T00:00:00.000Z

Reasoning: 70% palladium recovery is moderate compared to the copper recovery.

- Positive factor: 70% recovery is respectable

- Negative factor: Recovery is significantly lower than copper

Evidence · table

> 70

Context: Locked Cycle Test

#### 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

### locked-cycle

[Link to this fact](https://atlas-extractions.minestarters.com/news/ptx-metals-demonstrates-97-copper-recovery-from-locked-cycle-test-at-w2-copper-n--4e80c021-6c71-41cc-ae62-ea975449b559#fact-metallurgical-facts-2)

W2 Copper-Nickel-PGE Project · platinum

#### Identity

- Project: W2 Copper-Nickel-PGE Project
- Commodity: platinum
- Region: canada\_on
- Reported Region: Northern Ontario
- Ticker: PTX

#### Test Work

- Program Status: preliminary
- Test Type: locked-cycle
- Sample: Locked Cycle Test sample
- Grind P80: 50 µm

#### Recovery

- Recovery: 2.3 %
- Recovery Basis: actual\_test
- Head Grade: 0.11
- Head Grade Unit: g/t
- Conc. Grade: 0.2
- Conc. Grade Unit: g/t

#### Lab

- Laboratory: SGS Lakefield

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-17T00:00:00.000Z

Reasoning: 2.3% platinum recovery is very low.

- Negative factor: Very low platinum recovery

Evidence · table

> 2.3

Context: Locked Cycle Test

#### 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

### locked-cycle

[Link to this fact](https://atlas-extractions.minestarters.com/news/ptx-metals-demonstrates-97-copper-recovery-from-locked-cycle-test-at-w2-copper-n--4e80c021-6c71-41cc-ae62-ea975449b559#fact-metallurgical-facts-3)

W2 Copper-Nickel-PGE Project · gold

#### Identity

- Project: W2 Copper-Nickel-PGE Project
- Commodity: gold
- Region: canada\_on
- Reported Region: Northern Ontario
- Ticker: PTX

#### Test Work

- Program Status: preliminary
- Test Type: locked-cycle
- Sample: Locked Cycle Test sample
- Grind P80: 50 µm

#### Recovery

- Recovery: 54 %
- Recovery Basis: actual\_test
- Head Grade: 0.04
- Head Grade Unit: g/t
- Conc. Grade: 0.8
- Conc. Grade Unit: g/t

#### Lab

- Laboratory: SGS Lakefield

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-17T00:00:00.000Z

Reasoning: 54% gold recovery is moderate but indicates a need for further optimization.

- Negative factor: Gold recovery is relatively low at 54%

Evidence · table

> 54

Context: Locked Cycle Test

#### 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

**Low Recovery**

Polarity: negative

Definition: Recovery below the weak band for the commodity and processing route.

Why it applies: 54% is below the weak band \(80%\)

## 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.