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2026-11-06
◂ Monitor MGX ASX

MGX Resources Limited (formerly Mount Gibson Iron Limited)

Resource Stage · Gold · Iron Ore · AU Rating locked: sign in to view v8.1 · mgx-20261104t223124-full
Last 2026-11-06
A$0.29
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1M
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YTD
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1Y
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Fair value
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Upside
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Mkt cap
A$342.3M
EV
A$1.2M
Cash
A$332.2M
Debt
A$0

People, delivery and responsibility

Management background checks

Evidence through 2026-10-09

Research assessment

Executive team

Rating locked: sign in to viewTeam rating and score are available to subscribers

The reviewed evidence documents selected career records and company outcomes, with material adverse and delivery evidence retained at company level. Personal attribution is limited; several individual histories and qualifications remain incomplete. Open-web results do not constitute exhaustive personal clearance.

Decision-relevant facts

Material summary

Individual involvement and employer context shown separately

Peter Kerr

Chief Executive Officer

Current
Full background report for Peter Kerr
FailureIssuer Reported · Medium materiality

Koolan Island Main Pit rockfall led to suspension of mining

On 16 October 2025 a major rockfall occurred on the eastern footwall at Koolan Island. MGX reported no injuries after monitoring systems gave warning, but said mining was suspended; remediation was not viable against future stability risks, time, cost and remaining mine life. It withdrew guidance and estimated closure/transition costs at A$30–40 million. FY2025 had already seen lower operating cash flow and a A$90.4 million impairment, before the later rockfall.

Role overlaps event; causation unproven · The cited record establishes a company or employer event. For role_overlap, the executive held a relevant role in the period, but the reviewed source does not establish personal causation or an individual enforcement finding. For employer_only, no individual link or matching tenure was established.

Koolan Island Operations Update · Koolan Island Operations Update, paragraphs “Rockfall Event” and “Operational Implications”; FY2025 Annual Report, operating/cash flow and impairment disclosures.
Evidence gaps · 3
  • Individual contribution to company outcomes was not established.
  • The combined name-based web searches were not exhaustive checks of court, criminal, sanctions, credential, or regulator databases; no clearance conclusion is possible.
  • Complete prior-employer dates, qualifications and individual contributions were not independently verified from primary sources for this executive.

Full background report

Peter Kerr

Chief Executive Officer

Career chronology

  • 2018-10-01–cutoff: MGX Resources Limited — Chief Executive Officer. Annual Report to shareholders (Annual Report to shareholders; directors’ report/corporate directory, roster disclosure)

  • Issuer/secondary executive profile says he built the company from 2002 until public takeover in 2006; dates based on secondary profile.: Northern Gold NL — Managing Director. Management (Management biographies: profile for Peter Kerr)

  • Issuer profile; exact title/dates not stated.: Bannerman Resources — Senior corporate/finance role. Management (Management biographies: profile for Peter Kerr)

  • Issuer profile; exact title/dates not stated.: Teck Cominco — Senior corporate/finance role. Management (Management biographies: profile for Peter Kerr)

Business failures and setbacks

Koolan Island Main Pit rockfall led to suspension of mining

2025-10-16 · issuer reported · medium materiality

On 16 October 2025 a major rockfall occurred on the eastern footwall at Koolan Island. MGX reported no injuries after monitoring systems gave warning, but said mining was suspended; remediation was not viable against future stability risks, time, cost and remaining mine life. It withdrew guidance and estimated closure/transition costs at A$30–40 million. FY2025 had already seen lower operating cash flow and a A$90.4 million impairment, before the later rockfall.

Attribution: Role overlaps event; causation unproven. The cited record establishes a company or employer event. For role_overlap, the executive held a relevant role in the period, but the reviewed source does not establish personal causation or an individual enforcement finding. For employer_only, no individual link or matching tenure was established.

Relevance: This is relevant context for assessing Chief Executive Officer at the same employer; it should not be read as proof of individual performance or misconduct.

Koolan Island Operations Update (Koolan Island Operations Update, paragraphs “Rockfall Event” and “Operational Implications”; FY2025 Annual Report, operating/cash flow and impairment disclosures.)

Suitability for the current role

Role fit evidence is limited for Chief Executive Officer

2018-10-01–cutoff · analyst inference · low materiality

Issuer sources describe Peter Kerr’s current role and prior experience, including Northern Gold NL: Issuer/secondary executive profile says he built the company from 2002 until public takeover in 2006; dates based on secondary profile. The background is relevant context for Chief Executive Officer; the claims are issuer-reported and personal contribution to outcomes is not inferred.

Attribution: Responsibility not applicable. No outcome responsibility is inferred from title alone.

Relevance: The role is relevant to the company’s current stage; available evidence supports only a limited assessment of Peter Kerr’s professional suitability.

Management (Management biographies: profile for Peter Kerr)

Evidence gaps

  • Individual contribution to company outcomes was not established.

  • The combined name-based web searches were not exhaustive checks of court, criminal, sanctions, credential, or regulator databases; no clearance conclusion is possible.

  • Complete prior-employer dates, qualifications and individual contributions were not independently verified from primary sources for this executive.

Gillian Dobson

Chief Financial Officer

Current
Full background report for Gillian Dobson
FailureIssuer Reported · Medium materiality

Koolan Island Main Pit rockfall led to suspension of mining

On 16 October 2025 a major rockfall occurred on the eastern footwall at Koolan Island. MGX reported no injuries after monitoring systems gave warning, but said mining was suspended; remediation was not viable against future stability risks, time, cost and remaining mine life. It withdrew guidance and estimated closure/transition costs at A$30–40 million. FY2025 had already seen lower operating cash flow and a A$90.4 million impairment, before the later rockfall.

Role overlaps event; causation unproven · The cited record establishes a company or employer event. For role_overlap, the executive held a relevant role in the period, but the reviewed source does not establish personal causation or an individual enforcement finding. For employer_only, no individual link or matching tenure was established.

Koolan Island Operations Update · Koolan Island Operations Update, paragraphs “Rockfall Event” and “Operational Implications”; FY2025 Annual Report, operating/cash flow and impairment disclosures.
Evidence gaps · 3
  • Individual contribution to company outcomes was not established.
  • The combined name-based web searches were not exhaustive checks of court, criminal, sanctions, credential, or regulator databases; no clearance conclusion is possible.
  • Complete prior-employer dates, qualifications and individual contributions were not independently verified from primary sources for this executive.

Full background report

Gillian Dobson

Chief Financial Officer

Career chronology

  • 2018-10-01–cutoff: MGX Resources Limited — Chief Financial Officer. Annual Report to shareholders (Annual Report to shareholders; directors’ report/corporate directory, roster disclosure)

  • Issuer reports joined 23 Apr 2013; CFO from 1 Oct 2018.: Mount Gibson Iron / MGX — Group Commercial Manager, then CFO. Management (Management biographies: profile for Gillian Dobson)

Business failures and setbacks

Koolan Island Main Pit rockfall led to suspension of mining

2025-10-16 · issuer reported · medium materiality

On 16 October 2025 a major rockfall occurred on the eastern footwall at Koolan Island. MGX reported no injuries after monitoring systems gave warning, but said mining was suspended; remediation was not viable against future stability risks, time, cost and remaining mine life. It withdrew guidance and estimated closure/transition costs at A$30–40 million. FY2025 had already seen lower operating cash flow and a A$90.4 million impairment, before the later rockfall.

Attribution: Role overlaps event; causation unproven. The cited record establishes a company or employer event. For role_overlap, the executive held a relevant role in the period, but the reviewed source does not establish personal causation or an individual enforcement finding. For employer_only, no individual link or matching tenure was established.

Relevance: This is relevant context for assessing Chief Financial Officer at the same employer; it should not be read as proof of individual performance or misconduct.

Koolan Island Operations Update (Koolan Island Operations Update, paragraphs “Rockfall Event” and “Operational Implications”; FY2025 Annual Report, operating/cash flow and impairment disclosures.)

Suitability for the current role

Role fit evidence is limited for Chief Financial Officer

2018-10-01–cutoff · analyst inference · low materiality

Issuer sources describe Gillian Dobson’s current role and prior experience, including Mount Gibson Iron / MGX: Issuer reports joined 23 Apr 2013; CFO from 1 Oct 2018. The background is relevant context for Chief Financial Officer; the claims are issuer-reported and personal contribution to outcomes is not inferred.

Attribution: Responsibility not applicable. No outcome responsibility is inferred from title alone.

Relevance: The role is relevant to the company’s current stage; available evidence supports only a limited assessment of Gillian Dobson’s professional suitability.

Management (Management biographies: profile for Gillian Dobson)

Evidence gaps

  • Individual contribution to company outcomes was not established.

  • The combined name-based web searches were not exhaustive checks of court, criminal, sanctions, credential, or regulator databases; no clearance conclusion is possible.

  • Complete prior-employer dates, qualifications and individual contributions were not independently verified from primary sources for this executive.

David Stokes

Company Secretary & General Counsel

Current
Full background report for David Stokes
FailureIssuer Reported · Medium materiality

Koolan Island Main Pit rockfall led to suspension of mining

On 16 October 2025 a major rockfall occurred on the eastern footwall at Koolan Island. MGX reported no injuries after monitoring systems gave warning, but said mining was suspended; remediation was not viable against future stability risks, time, cost and remaining mine life. It withdrew guidance and estimated closure/transition costs at A$30–40 million. FY2025 had already seen lower operating cash flow and a A$90.4 million impairment, before the later rockfall.

Role overlaps event; causation unproven · The cited record establishes a company or employer event. For role_overlap, the executive held a relevant role in the period, but the reviewed source does not establish personal causation or an individual enforcement finding. For employer_only, no individual link or matching tenure was established.

Koolan Island Operations Update · Koolan Island Operations Update, paragraphs “Rockfall Event” and “Operational Implications”; FY2025 Annual Report, operating/cash flow and impairment disclosures.
Evidence gaps · 3
  • Individual contribution to company outcomes was not established.
  • The combined name-based web searches were not exhaustive checks of court, criminal, sanctions, credential, or regulator databases; no clearance conclusion is possible.
  • Complete prior-employer dates, qualifications and individual contributions were not independently verified from primary sources for this executive.

Full background report

David Stokes

Company Secretary & General Counsel

Career chronology

  • 2012-04-02–cutoff: MGX Resources Limited — Company Secretary & General Counsel. Annual Report to shareholders (Annual Report to shareholders; directors’ report/corporate directory, roster disclosure)

  • Issuer biography; dates not stated.: Gindalbie Metals — General Counsel and Company Secretary. Management (Management biographies: profile for David Stokes)

  • Issuer biography; dates not stated.: Iluka Resources — Corporate Counsel. Management (Management biographies: profile for David Stokes)

  • Issuer biography; dates not stated.: Resolute Mining — Corporate Counsel. Management (Management biographies: profile for David Stokes)

Business failures and setbacks

Koolan Island Main Pit rockfall led to suspension of mining

2025-10-16 · issuer reported · medium materiality

On 16 October 2025 a major rockfall occurred on the eastern footwall at Koolan Island. MGX reported no injuries after monitoring systems gave warning, but said mining was suspended; remediation was not viable against future stability risks, time, cost and remaining mine life. It withdrew guidance and estimated closure/transition costs at A$30–40 million. FY2025 had already seen lower operating cash flow and a A$90.4 million impairment, before the later rockfall.

Attribution: Role overlaps event; causation unproven. The cited record establishes a company or employer event. For role_overlap, the executive held a relevant role in the period, but the reviewed source does not establish personal causation or an individual enforcement finding. For employer_only, no individual link or matching tenure was established.

Relevance: This is relevant context for assessing Company Secretary & General Counsel at the same employer; it should not be read as proof of individual performance or misconduct.

Koolan Island Operations Update (Koolan Island Operations Update, paragraphs “Rockfall Event” and “Operational Implications”; FY2025 Annual Report, operating/cash flow and impairment disclosures.)

Suitability for the current role

Role fit evidence is limited for Company Secretary & General Counsel

2012-04-02–cutoff · analyst inference · low materiality

Issuer sources describe David Stokes’s current role and prior experience, including Gindalbie Metals: Issuer biography; dates not stated. The background is relevant context for Company Secretary & General Counsel; the claims are issuer-reported and personal contribution to outcomes is not inferred.

Attribution: Responsibility not applicable. No outcome responsibility is inferred from title alone.

Relevance: The role is relevant to the company’s current stage; available evidence supports only a limited assessment of David Stokes’s professional suitability.

Management (Management biographies: profile for David Stokes)

Evidence gaps

  • Individual contribution to company outcomes was not established.

  • The combined name-based web searches were not exhaustive checks of court, criminal, sanctions, credential, or regulator databases; no clearance conclusion is possible.

  • Complete prior-employer dates, qualifications and individual contributions were not independently verified from primary sources for this executive.

David Rayfield

General Manager - Koolan Island Operations

Current
Full background report for David Rayfield
FailureIssuer Reported · Medium materiality

Koolan Island Main Pit rockfall led to suspension of mining

On 16 October 2025 a major rockfall occurred on the eastern footwall at Koolan Island. MGX reported no injuries after monitoring systems gave warning, but said mining was suspended; remediation was not viable against future stability risks, time, cost and remaining mine life. It withdrew guidance and estimated closure/transition costs at A$30–40 million. FY2025 had already seen lower operating cash flow and a A$90.4 million impairment, before the later rockfall.

Role overlaps event; causation unproven · The cited record establishes a company or employer event. For role_overlap, the executive held a relevant role in the period, but the reviewed source does not establish personal causation or an individual enforcement finding. For employer_only, no individual link or matching tenure was established.

Koolan Island Operations Update · Koolan Island Operations Update, paragraphs “Rockfall Event” and “Operational Implications”; FY2025 Annual Report, operating/cash flow and impairment disclosures.
Evidence gaps · 3
  • Individual contribution to company outcomes was not established.
  • The combined name-based web searches were not exhaustive checks of court, criminal, sanctions, credential, or regulator databases; no clearance conclusion is possible.
  • Complete prior-employer dates, qualifications and individual contributions were not independently verified from primary sources for this executive.

Full background report

David Rayfield

General Manager - Koolan Island Operations

Career chronology

  • Role shown in 2025-10-10; exact start not established: MGX Resources Limited — General Manager - Koolan Island Operations. Annual Report to shareholders (Annual Report to shareholders; directors’ report/corporate directory, roster disclosure)

  • Joined company/site in 2012; appointed GM Koolan Island Operations in 2023 per issuer biography; prior exact roles are not supplied.: Mount Gibson Iron / MGX — Koolan Island operations management. Management (Management biographies: profile for David Rayfield)

Business failures and setbacks

Koolan Island Main Pit rockfall led to suspension of mining

2025-10-16 · issuer reported · medium materiality

On 16 October 2025 a major rockfall occurred on the eastern footwall at Koolan Island. MGX reported no injuries after monitoring systems gave warning, but said mining was suspended; remediation was not viable against future stability risks, time, cost and remaining mine life. It withdrew guidance and estimated closure/transition costs at A$30–40 million. FY2025 had already seen lower operating cash flow and a A$90.4 million impairment, before the later rockfall.

Attribution: Role overlaps event; causation unproven. The cited record establishes a company or employer event. For role_overlap, the executive held a relevant role in the period, but the reviewed source does not establish personal causation or an individual enforcement finding. For employer_only, no individual link or matching tenure was established.

Relevance: This is relevant context for assessing General Manager - Koolan Island Operations at the same employer; it should not be read as proof of individual performance or misconduct.

Koolan Island Operations Update (Koolan Island Operations Update, paragraphs “Rockfall Event” and “Operational Implications”; FY2025 Annual Report, operating/cash flow and impairment disclosures.)

Suitability for the current role

Role fit evidence is limited for General Manager - Koolan Island Operations

Role shown in 2025-10-10; exact start not established · analyst inference · low materiality

Issuer sources describe David Rayfield’s current role and prior experience, including Mount Gibson Iron / MGX: Joined company/site in 2012; appointed GM Koolan Island Operations in 2023 per issuer biography; prior exact roles are not supplied. The background is relevant context for General Manager - Koolan Island Operations; the claims are issuer-reported and personal contribution to outcomes is not inferred.

Attribution: Responsibility not applicable. No outcome responsibility is inferred from title alone.

Relevance: The role is relevant to the company’s current stage; available evidence supports only a limited assessment of David Rayfield’s professional suitability.

Management (Management biographies: profile for David Rayfield)

Evidence gaps

  • Individual contribution to company outcomes was not established.

  • The combined name-based web searches were not exhaustive checks of court, criminal, sanctions, credential, or regulator databases; no clearance conclusion is possible.

  • Complete prior-employer dates, qualifications and individual contributions were not independently verified from primary sources for this executive.