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2026-11-06
◂ Monitor WIA ASX

Wia Gold Limited

DFS Unfunded Developer · Gold · Namibia Rating locked: sign in to view v8.1 · wia-20261031t202844-full
Last 2026-11-06
A$0.385
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People, delivery and responsibility

Management background checks

Evidence through 2026-11-02

Research assessment

Executive team

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

As of the cutoff, WIA's five-person executive roster combines mine-development leadership, finance, project delivery, exploration and legal/governance experience. Henk Diederichs has the clearest directly credited study-delivery record at PDI; John Mussett's prior project record is supported by Aris and AngloGold Ashanti filings; Pierrick Couderc is issuer-credited with leading the Centamin exploration team behind Doropo and ABC. WIA's Kokoseb DFS and reserve milestones occurred during the current team period, but the project remained pre-production and individual responsibility is not isolated. David Edwards' Ancuabe finance work reached feasibility and financing discussions, without evidence of construction or production during his Triton tenure. An external-mine safety event during John's Aris tenure is employer-level context only. Exact-name records for John Mussett and David Edwards are not attributed because identity remains unresolved.

Decision-relevant facts

Material summary

Individual involvement and employer context shown separately

Henk Diederichs

Managing Director and Chief Executive Officer

Current
Full background report for Henk Diederichs
Personal SuccessIssuer Reported · Medium materiality

Led PDI Bankan DFS delivery

PDI's FY2025 report credits Henk, as COO, with leading Bankan DFS delivery alongside its broader project and technical teams. The DFS is a study and its production and returns are forecasts; no mine was operating by the cutoff.

Individual involvement documented · PDI directly credits his leadership but describes team delivery; no sole contribution or operating outcome is established.

Annual Report FY2025 · MD report, p. 12
Company SuccessIssuer Reported · Medium materiality

Nyanzaga advanced during OreCorp executive tenure

OreCorp filings document Henk's VP Project Development, COO and CEO/MD roles, and advancement of Nyanzaga through scoping and prefeasibility. WIA says his CEO tenure ended with OreCorp's acquisition by Perseus in April 2024. The sources do not isolate his contribution to sale terms, valuation or shareholder return; the project had not reached production in the reviewed evidence.

Role overlaps event; causation unproven · His roles overlapped project advancement and the company acquisition, but sole responsibility is not shown.

Appointment of Chief Operating Officer · Career and Nyanzaga history
Company SuccessIssuer Reported · Medium materiality

Kokoseb DFS and reserve milestone during WIA tenure

WIA's 2026 annual report records completion of the Kokoseb DFS in August 2026 and a 1.95 Moz reserve, alongside funding steps toward construction. The milestone occurred during Henk's CEO tenure, but his individual contribution is not isolated. Construction and production remained future plans.

Role overlaps event; causation unproven · His CEO tenure overlapped the milestone; no individual causal contribution or operating result is established.

2026 Annual Report · pp. 5-9, DFS, reserve and financing
Evidence gaps · 3
  • Exact Allied Gold dates and some Equinox titles are unresolved; no independent employment or credential-register check was completed.
  • Bankan and Kokoseb DFS findings are study-stage outcomes; they do not evidence construction, commissioning or production by Henk.
  • Public-source searches are not exhaustive criminal, sanctions, litigation, safety or environmental checks.

Full background report

Henk Diederichs

Managing Director and Chief Executive Officer

Career chronology

Education and qualifications

Mechanical engineering and AusIMM membership

2022-2023 issuer disclosures · issuer reported · low materiality

OreCorp reports that Henk holds a mechanical-engineering degree and is a member of AusIMM. The awarding institution and independent credential verification are not established in the reviewed primary records.

Attribution: Individual involvement documented. OreCorp identifies the credential; no register verification was completed.

Relevance: Relevant to technical and development leadership.

OreCorp positions Board and senior management for Nyanzaga development (Appointment release, qualification); Annual Report for year ended 30 June 2023 (Directors' report, biography)

Personal achievements

Led PDI Bankan DFS delivery

DFS released June 2025 · issuer reported · medium materiality

PDI's FY2025 report credits Henk, as COO, with leading Bankan DFS delivery alongside its broader project and technical teams. The DFS is a study and its production and returns are forecasts; no mine was operating by the cutoff.

Attribution: Individual involvement documented. PDI directly credits his leadership but describes team delivery; no sole contribution or operating outcome is established.

Relevance: Relevant prior project-study delivery experience.

Annual Report FY2025 (MD report, p. 12)

Contributions and company outcomes

Nyanzaga advanced during OreCorp executive tenure

Late 2016-April 2024 · issuer reported · medium materiality

OreCorp filings document Henk's VP Project Development, COO and CEO/MD roles, and advancement of Nyanzaga through scoping and prefeasibility. WIA says his CEO tenure ended with OreCorp's acquisition by Perseus in April 2024. The sources do not isolate his contribution to sale terms, valuation or shareholder return; the project had not reached production in the reviewed evidence.

Attribution: Role overlaps event; causation unproven. His roles overlapped project advancement and the company acquisition, but sole responsibility is not shown.

Relevance: Relevant project development and transaction exposure; not a commissioning record.

Appointment of Chief Operating Officer (Career and Nyanzaga history); Annual Report for year ended 30 June 2023 (p. 14); Wia appoints Managing Director and Chief Executive Officer (Prior OreCorp tenure)

Kokoseb DFS and reserve milestone during WIA tenure

FY2026; DFS August 2026 · issuer reported · medium materiality

WIA's 2026 annual report records completion of the Kokoseb DFS in August 2026 and a 1.95 Moz reserve, alongside funding steps toward construction. The milestone occurred during Henk's CEO tenure, but his individual contribution is not isolated. Construction and production remained future plans.

Attribution: Role overlaps event; causation unproven. His CEO tenure overlapped the milestone; no individual causal contribution or operating result is established.

Relevance: Highly relevant, though the project remained pre-production.

2026 Annual Report (pp. 5-9, DFS, reserve and financing)

Suitability for the current role

Mine development and operations background

Through 2026-11-02 · analyst inference · medium materiality

The selected roster identifies Henk as WIA MD/CEO from 1 February 2026. WIA and OreCorp records document senior project and operations roles at PDI, OreCorp, Allied Gold and Equinox; exact Allied Gold dates and some Equinox titles remain unresolved.

Attribution: Responsibility not applicable. Role-fit judgment based on selected roster and employer records, not a complete employment audit.

Relevance: Relevant to WIA's pre-construction development mandate.

2026 Annual Report (p. 9, appointment/biography); Wia appoints Managing Director and Chief Executive Officer (Appointment announcement); Annual Report for year ended 30 June 2023 (Directors' report, p. 14)

Evidence gaps

  • Exact Allied Gold dates and some Equinox titles are unresolved; no independent employment or credential-register check was completed.

  • Bankan and Kokoseb DFS findings are study-stage outcomes; they do not evidence construction, commissioning or production by Henk.

  • Public-source searches are not exhaustive criminal, sanctions, litigation, safety or environmental checks.

David Edwards

Chief Financial Officer

Current
Full background report for David Edwards
Company SuccessIssuer Reported · Medium materiality

Led Ancuabe finance and commercial workstreams through feasibility

WIA says Edwards led Triton's finance and commercial workstreams at Ancuabe from scoping through feasibility, construction-contract negotiations and financing discussions. Triton's 2021 report confirms his CFO/CS and interim CEO dates. No closed project financing, construction or production outcome during his tenure is established.

Individual involvement documented · WIA directly attributes the workstreams; it does not establish a financing close or operating result.

Evidence gaps · 3
  • Queensland public-service David Edwards story cannot be matched to WIA's finance executive; no allegation is attributed.
  • Exact dates for some roles and education details are incomplete; no professional register check was done.
  • No exhaustive court, regulator, criminal, sanctions, safety or environment search was completed; Ancuabe did not reach production during documented tenure.

Full background report

David Edwards

Chief Financial Officer

Career chronology

Education and qualifications

Chartered Accountant; degree details not established

2023-2026 disclosures · issuer reported · low materiality

WIA and Alliance Nickel describe David Edwards as a Chartered Accountant. The reviewed primary sources do not state a university degree or awarding institution, and no professional register check was performed.

Attribution: Individual involvement documented. Issuer sources identify CA status; no independent verification.

Relevance: Relevant to CFO responsibilities, with credential detail limits.

Appointment of Chief Financial Officer (Appointment release, qualification); Appointment of Chief Financial Officer (Appointment release)

Contributions and company outcomes

Led Ancuabe finance and commercial workstreams through feasibility

Triton 2017-2021; interim CEO Feb-Sep 2021 · issuer reported · medium materiality

WIA says Edwards led Triton's finance and commercial workstreams at Ancuabe from scoping through feasibility, construction-contract negotiations and financing discussions. Triton's 2021 report confirms his CFO/CS and interim CEO dates. No closed project financing, construction or production outcome during his tenure is established.

Attribution: Individual involvement documented. WIA directly attributes the workstreams; it does not establish a financing close or operating result.

Relevance: Relevant project-finance experience, with a development-stage rather than operating outcome.

Appointment of Chief Financial Officer (Ancuabe experience); Annual Report for year ended 31 December 2021 (KMP dates)

Governance and interests

Concurrent public-company CFO roles disclosed

From March 2026 through cutoff · documented · low materiality

WIA appointed Edwards CFO while Alliance Nickel continued to identify him as its CFO and Company Secretary. The reviewed disclosures show overlapping roles but no conflict, control failure or adverse outcome.

Attribution: Individual involvement documented. Both roles are disclosed by the issuers; no conflict is established.

Relevance: Relevant context for workload and governance oversight, not an adverse finding.

Appointment of Chief Financial Officer (Current Alliance role); Appointment of Chief Financial Officer (Alliance CFO appointment)

Suitability for the current role

Mining finance, project financing and company-secretarial experience

Through 2026-11-02 · analyst inference · medium materiality

WIA appointed David CFO on 9 March 2026. Issuer records list Alliance Nickel, Triton, Clough, Fortescue and Deloitte roles. Triton's annual report gives the CFO/CS start as 3 January 2017, while WIA's later biography rounds it to 2016.

Attribution: Responsibility not applicable. Based on disclosed roles and selected roster; not a full employment audit.

Relevance: Relevant finance, reporting and project-finance background; short WIA tenure.

Appointment of Chief Financial Officer (Career summary); Annual Report for year ended 31 December 2021 (KMP table); Appointment of Chief Financial Officer (Career summary)

Evidence gaps

  • Queensland public-service David Edwards story cannot be matched to WIA's finance executive; no allegation is attributed.

  • Exact dates for some roles and education details are incomplete; no professional register check was done.

  • No exhaustive court, regulator, criminal, sanctions, safety or environment search was completed; Ancuabe did not reach production during documented tenure.

John Mussett

Project Director

Current
Full background report for John Mussett
Personal SuccessIssuer Reported · Medium materiality

Project delivery linked to Obuasi redevelopment and Tropicana

Aris Mining says Mussett was integral in successful delivery of major capital projects including Obuasi and Tropicana. AngloGold Ashanti independently reports Obuasi Phase 1 completion, progress on schedule and within budget, and first gold on 18 December 2019. This does not establish his sole contribution.

Individual involvement documented · Aris attributes integral project involvement; AGA verifies the project milestone but not his individual causal contribution.

SafetyDocumented · Medium materiality

External partner mine collapse during Aris tenure; all workers rescued

A collapse at La Reliquia on 22 September 2025 trapped 23 people, including five Aris employees performing monthly reviews. Aris said the third-party mine was within its Segovia title but outside its infrastructure; it and the local workforce supported rescue. AP reported all 23 were rescued after about 43 hours. No personal responsibility by Mussett is established.

Employer context; no individual link established · The incident occurred during his Aris tenure, but it was an external partner operation and no report links Mussett to the cause or safety responsibility.

Evidence gaps · 3
  • Exact WIA start date and detailed roles before AngloGold are not disclosed; education is self-reported with no degree specified.
  • Two UK court-listing entries with an exact-name match cannot be linked to this executive; no allegation is attributed.
  • No exhaustive criminal, sanctions, legal, environment or credential search; La Reliquia was third-party operated.

Full background report

John Mussett

Project Director

Career chronology

Education and qualifications

Tertiary qualification stated, degree unspecified

Profile accessed at cutoff · self reported · low materiality

A self-reported LinkedIn profile names Edith Cowan University and calls Mussett tertiary-qualified, but does not state degree or dates; it is not independent credential verification.

Attribution: Responsibility not applicable. Self-reported profile only; exact qualification not identified.

Relevance: Limits assessment of formal qualifications.

John Mussett professional profile (Education/About sections)

Personal achievements

Project delivery linked to Obuasi redevelopment and Tropicana

AGA tenure; Obuasi first gold December 2019 · issuer reported · medium materiality

Aris Mining says Mussett was integral in successful delivery of major capital projects including Obuasi and Tropicana. AngloGold Ashanti independently reports Obuasi Phase 1 completion, progress on schedule and within budget, and first gold on 18 December 2019. This does not establish his sole contribution.

Attribution: Individual involvement documented. Aris attributes integral project involvement; AGA verifies the project milestone but not his individual causal contribution.

Relevance: Relevant prior mine-project delivery evidence.

Annual Information Form for year ended 31 December 2022 (Item 11, John Mussett biography); Integrated Report 2019: Continental Africa / Obuasi (Obuasi redevelopment section)

Industrial safety

External partner mine collapse during Aris tenure; all workers rescued

22-24 September 2025 · documented · medium materiality

A collapse at La Reliquia on 22 September 2025 trapped 23 people, including five Aris employees performing monthly reviews. Aris said the third-party mine was within its Segovia title but outside its infrastructure; it and the local workforce supported rescue. AP reported all 23 were rescued after about 43 hours. No personal responsibility by Mussett is established.

Attribution: Employer context; no individual link established. The incident occurred during his Aris tenure, but it was an external partner operation and no report links Mussett to the cause or safety responsibility.

Relevance: Employer-level safety context only.

Aris Mining confirms incident at an external mine partner operation at Segovia (Incident release); 23 miners rescued after 43 hours trapped in Colombian gold mine (Rescue outcome and mine operator)

Suitability for the current role

Mine-project delivery experience across Africa and Latin America

Through 2026-11-02 · analyst inference · medium materiality

Aris Mining's SEC-filed AIF describes John Mussett as SVP Projects from 26 September 2022, with 20+ years' project delivery and prior AngloGold roles. WIA's 2026 annual report describes his most recent portfolio as about US$2.6 billion; exact WIA start date is not disclosed.

Attribution: Responsibility not applicable. Role relevance is inferred from employer biographies; it does not prove sole responsibility for past outcomes.

Relevance: Highly relevant to WIA Project Director role; current WIA delivery remains pre-construction.

Annual Information Form for year ended 31 December 2022 (Item 11, p. 148); 2026 Annual Report (p. 9); Quarterly Activities and Cashflow Report - June 2026 (Joined after reporting period)

Evidence gaps

  • Exact WIA start date and detailed roles before AngloGold are not disclosed; education is self-reported with no degree specified.

  • Two UK court-listing entries with an exact-name match cannot be linked to this executive; no allegation is attributed.

  • No exhaustive criminal, sanctions, legal, environment or credential search; La Reliquia was third-party operated.

Pierrick Couderc

Group Exploration Manager

Current
Full background report for Pierrick Couderc
Personal SuccessIssuer Reported · Medium materiality

Led exploration team credited with Doropo and ABC discoveries

Tanga's 2021 release says Couderc established and led Centamin's Côte d'Ivoire team behind the initial 2.45 Moz Doropo and 0.65 Moz ABC discoveries. WIA now reports larger updated resources; that subsequent growth is not credited to him here. Team leadership is issuer-reported, not sole geological causation.

Individual involvement documented · Issuer attributes team setup and leadership; no sole discovery responsibility or later resource growth is established.

Exploration Work Begins in Côte d'Ivoire · Appointment release, prior discoveries
Corporate leadership biographies · Current resource figures
Evidence gaps · 3
  • Education and exact dates for prior roles are not available in primary sources; a same-name profile has incomplete identity linkage.
  • Discovery figures and team role are issuer-reported; later resource growth is not attributed to Couderc.
  • No credential-register, criminal, sanctions, litigation or exhaustive safety/environment search.

Full background report

Pierrick Couderc

Group Exploration Manager

Career chronology

Personal achievements

Led exploration team credited with Doropo and ABC discoveries

Before March 2021; initial project disclosures in 2021 · issuer reported · medium materiality

Tanga's 2021 release says Couderc established and led Centamin's Côte d'Ivoire team behind the initial 2.45 Moz Doropo and 0.65 Moz ABC discoveries. WIA now reports larger updated resources; that subsequent growth is not credited to him here. Team leadership is issuer-reported, not sole geological causation.

Attribution: Individual involvement documented. Issuer attributes team setup and leadership; no sole discovery responsibility or later resource growth is established.

Relevance: Relevant exploration track record with attribution limits.

Exploration Work Begins in Côte d'Ivoire (Appointment release, prior discoveries); Corporate leadership biographies (Current resource figures)

Suitability for the current role

Exploration leadership and competent-person responsibilities

Through 2026-11-02 · analyst inference · medium materiality

The selected roster lists Pierrick Couderc as Group Exploration Manager. A 2021 appointment release and WIA technical statements identify his exploration-management role, AusIMM/AIG membership and competent-person review duties. WIA's current biography shortens his title to Exploration Manager; the roster and appointment release use Group Exploration Manager.

Attribution: Responsibility not applicable. Role-fit judgment from issuer-reported management and technical-review roles; not independent employment verification.

Relevance: Highly relevant to exploration and resource-reporting duties.

Exploration Work Begins in Côte d'Ivoire (Appointment, Group Exploration Manager); Bouaflé South results and Competent Person statement (Competent Person statement); Corporate leadership biographies (Biography)

Evidence gaps

  • Education and exact dates for prior roles are not available in primary sources; a same-name profile has incomplete identity linkage.

  • Discovery figures and team role are issuer-reported; later resource growth is not attributed to Couderc.

  • No credential-register, criminal, sanctions, litigation or exhaustive safety/environment search.

Jessica O'Hara

Company Secretary and Group Legal Counsel

Current
Full background report for Jessica O'Hara
Role FitAnalyst Inference · Medium materiality

Corporate-law and listed-mining governance background

The roster lists Jessica O'Hara as Company Secretary and Group Legal Counsel. OreCorp records prior senior legal roles at Clayton Utz and Allen & Overy, in-house legal experience and Company Secretary service; WIA describes 20+ years in legal/secretarial roles. Exact earlier dates are not established.

Responsibility not applicable · Assessment from issuer/employer reports and selected roster, not a full employment audit.

Corporate leadership biographies · Jessica O'Hara biography
Board and Company Secretary Changes · Prior Group Legal Counsel title
Evidence gaps · 3
  • Exact dates for private-practice roles are unavailable; LLB/BCom are issuer-reported and not independently checked.
  • WIA Company Secretary tenure was about one month at cutoff, limiting evidence of role outcomes.
  • No exhaustive legal, criminal, sanctions or professional-register search.

Full background report

Jessica O'Hara

Company Secretary and Group Legal Counsel

Career chronology

Education and qualifications

LLB and Bachelor of Commerce reported by OreCorp

2022 disclosure · issuer reported · low materiality

OreCorp's annual report identifies Jessica O'Hara's qualifications as LLB and BCom; it does not give awarding institutions and no independent credential check was completed.

Attribution: Individual involvement documented. OreCorp records the qualifications, without external verification.

Relevance: Relevant to Company Secretary and legal-counsel work.

Annual Report for year ended 30 June 2022 (Company Secretary section, qualifications)

Governance and interests

Company Secretary succession effective 30 September 2026

30 September 2026 · documented · low materiality

WIA appointed Jessica O'Hara, then Group Legal Counsel, as Company Secretary effective 30 September 2026, succeeding Joanna Kiernan. This documents the role transition, not individual performance.

Attribution: Individual involvement documented. Issuer notice records appointment and succession; no performance inference is drawn.

Relevance: Relevant to current governance coverage.

Board and Company Secretary Changes (p. 2)

External school council and Finance and Risk Committee role

Current public listing · documented · low materiality

John XXIII College's governance page lists Jessica O'Hara as a Council Member appointed July 2025 and a Finance and Risk Committee member. No conflict or adverse outcome is identified.

Attribution: Individual involvement documented. The institution lists the external role; no conflict is established.

Relevance: Relevant context for external governance commitments.

Governance (Governance page, Council and Finance and Risk Committee)

Suitability for the current role

Corporate-law and listed-mining governance background

Through cutoff · analyst inference · medium materiality

The roster lists Jessica O'Hara as Company Secretary and Group Legal Counsel. OreCorp records prior senior legal roles at Clayton Utz and Allen & Overy, in-house legal experience and Company Secretary service; WIA describes 20+ years in legal/secretarial roles. Exact earlier dates are not established.

Attribution: Responsibility not applicable. Assessment from issuer/employer reports and selected roster, not a full employment audit.

Relevance: Relevant governance background; WIA company-secretary tenure is short.

Corporate leadership biographies (Jessica O'Hara biography); Board and Company Secretary Changes (Prior Group Legal Counsel title); Annual Report for year ended 30 June 2022 (p. 14)

Evidence gaps

  • Exact dates for private-practice roles are unavailable; LLB/BCom are issuer-reported and not independently checked.

  • WIA Company Secretary tenure was about one month at cutoff, limiting evidence of role outcomes.

  • No exhaustive legal, criminal, sanctions or professional-register search.

Joanna Kiernan

Company Secretary (departed effective 2026-09-30)

Departed
Full background report for Joanna Kiernan

No supported material findings selected. See this executive’s report and evidence gaps.

Evidence gaps · 1
  • Earlier limited research remains from the 9 October report; no further research was performed after her departure.

Full background report

Joanna Kiernan

Company Secretary (departed effective 2026-09-30)

Career chronology

Governance and interests

Company Secretary departure recorded

30 September 2026 · documented · low materiality

WIA says Joanna Kiernan resigned as Company Secretary effective 30 September 2026 and Jessica O'Hara succeeded her. No performance inference is drawn.

Attribution: Individual involvement documented. The issuer documents the departure/succession only.

Relevance: Roster transition context.

Board and Company Secretary Changes (p. 2)

Evidence gaps

  • Earlier limited research remains from the 9 October report; no further research was performed after her departure.