# Fortescue arsenic-removal tech hits commercial milestone

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/fortescue-arsenic-removal-tech-hits-commercial-milestone--4aeb2b7a-83e2-4599-bdf6-bbf118fa3cae

Original source: https://www.canadianminingjournal.com/news/fortescue-arsenic-removal-tech-hits-commercial-milestone/

Publisher: canadianminingjournal

Original announcement: 2026-10-20T16:38:51.000Z

Analysis by Minestarters Atlas

Atlas analysis published: 2026-10-20T20:02:16.993Z

Atlas analysis updated: 2026-10-20T20:02:16.993Z

- Company: Fortescue

- Ticker: FMG

- Exchange: Unavailable

- Region: Australia, NZ & South Pacific

- Primary commodity: Copper

- Secondary commodities: Arsenic

- Document categories: Metallurgy

- Extracted: 2026-10-20 20:02:17 UTC

Narrative sentiment: 0.80 · Bullish

## Minestarters Atlas summary

Fortescue has achieved a commercial milestone with its Toowong Process, selling over 40 tonnes of copper concentrate cleaned of arsenic. The hydrometallurgical technology reduces arsenic levels to below 0.3% while maintaining over 99.9% copper recovery.

Reasoning: The announcement details a successful commercial application of a patented hydrometallurgical process that solves a major industry barrier \(arsenic contamination\) with high copper recovery.

- Positive factor: Successful commercial milestone with 40 tonnes sold

- Positive factor: High copper retention \(>99.9%\)

- Positive factor: Effective arsenic reduction to <0.3%

- Positive factor: Low-temperature/low-pressure alternative to energy-intensive roasting

Facts used in scoring: 2

## Classification and evidence

**High Recovery**

Polarity: positive

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

Why it applies: Copper retention is reported at over 99.9%

Evidence · text

> retaining more than 99.9% of the copper

**Free Milling**

Polarity: positive

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

Why it applies: The technology is designed to handle contaminated/arsenic-rich deposits which are typically complex

Evidence · text

> arsenic removal technology

**Mill Route**

Polarity: neutral

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

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

**POX/BIOX Route**

Polarity: neutral

Definition: Pressure or bio-oxidation for refractory ore — high CAPEX and OPEX.

Why it applies: the document describes a pox\_biox route \("roasting"\)

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

## Metallurgical Results (2)

### hydrometallurgical method

[Link to this fact](https://atlas-staging.minestarters.com/news/fortescue-arsenic-removal-tech-hits-commercial-milestone--4aeb2b7a-83e2-4599-bdf6-bbf118fa3cae#fact-metallurgical-facts-0)

copper

#### Identity

- Commodity: copper
- Region: australia
- Reported Region: Australia, NZ & South Pacific
- Ticker: FMG

#### Test Work

- Program Status: detailed
- Test Type: hydrometallurgical method
- Processing Route: low-temperature, low-pressure hydrometallurgical method
- Sample: copper concentrate cleaned using Toowong Process

#### Recovery

- Recovery: 99.9 %

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-10-20T00:00:00.000Z

Reasoning: Reported copper retention is exceptional for a cleaning process.

- Positive factor: Extremely high copper retention \(>99.9%\)

Evidence · text

> retaining more than 99.9% of the copper

#### Tags used in scoring

**High Recovery**

Polarity: positive

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

Why it applies: 99.9% is at or above the exceptional band \(92%\)

### hydrometallurgical method

[Link to this fact](https://atlas-staging.minestarters.com/news/fortescue-arsenic-removal-tech-hits-commercial-milestone--4aeb2b7a-83e2-4599-bdf6-bbf118fa3cae#fact-metallurgical-facts-1)

arsenic

#### Identity

- Commodity: arsenic
- Region: australia
- Reported Region: Australia, NZ & South Pacific
- Ticker: FMG

#### Test Work

- Program Status: detailed
- Test Type: hydrometallurgical method
- Processing Route: low-temperature, low-pressure hydrometallurgical method
- Sample: copper concentrate cleaned using Toowong Process

#### Recovery

- Conc. Grade: 0.3
- Conc. Grade Unit: %

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-10-20T00:00:00.000Z

Reasoning: Achieving <0.3% arsenic is a significant technical achievement for concentrate cleaning.

- Positive factor: Successfully reduced arsenic to below 0.3%

Evidence · text

> reduced arsenic levels in concentrates to below 0.3%

## 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.