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2026-11-06

← MM1 management

Full background report

Mark Calderwood

Managing Director

Career chronology

  • 2022-07-01–cutoff: Midas Minerals Limited — Managing Director. Annual Report to shareholders (Annual Report to shareholders; directors’ report/corporate directory, roster disclosure)

  • Appointed Jan 2004; stepped down Jan 2013 after nine years and moved to part-time technical project-generation role.: Perseus Mining — Managing Director and Chief Executive Officer. Board of Directors and Executive Team (Executive biography for Mark Calderwood)

  • Issuer biography says he oversaw discovery and development from 2016 to 2019.: Bald Hill lithium project — Discovery/development leadership. Board of Directors and Executive Team (Executive biography for Mark Calderwood)

  • Issuer profile says exploration manager since listing in 2021; MD appointment July 2022.: Midas Minerals — Exploration Manager, then Managing Director. Board of Directors and Executive Team (Executive biography for Mark Calderwood)

Contributions and company outcomes

Midas added Otavi to its exploration portfolio; operating delivery remains unproven

FY2025 · issuer reported · low materiality

Midas’ FY2025 report described the acquisition of the Otavi copper-silver-gold project in Namibia as a transformational portfolio addition and showed a year-end market-capitalisation increase, while the company remained loss-making (FY2025 loss A$2.77m). Exploration success and future project value remain prospective; no operating mine delivery is established in this record.

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 Managing Director at the same employer; it should not be read as proof of individual performance or misconduct.

Midas Minerals Annual Report 2025 (Annual Report 2025, Chair’s letter; audited company performance table.)

Suitability for the current role

Role fit evidence is limited for Managing Director

2022-07-01–cutoff · analyst inference · low materiality

Issuer sources describe Mark Calderwood’s current role and prior experience, including Perseus Mining: Appointed Jan 2004; stepped down Jan 2013 after nine years and moved to part-time technical project-generation role. The background is relevant context for Managing Director; 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 Mark Calderwood’s professional suitability.

Board of Directors and Executive Team (Executive biography for Mark Calderwood)

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.