Scott Williamson

Career chronology

• Dates not stated in the source: Blackstone Minerals; Resolute Mining; Perseus Mining — Previously held professional positions as described by issuer. Appointment of new CEO and MD (30 January 2026 CEO appointment announcement summary.)

• Current at evidence cutoff: Horizon Gold Limited — Managing Director, Chief Executive Officer. Appointment of new CEO and MD (30 January 2026 CEO appointment announcement summary.)

• Most recent role before Horizon: Blackstone Minerals — Managing Director. Appointment of new Chief Executive Officer and Managing Director (p.1 lines 19–24)

• Prior role; exact dates not specified: Resolute Mining — Investor Relations Manager. Appointment of new Chief Executive Officer and Managing Director (p.1 lines 20–23)

• Prior role; exact dates not specified: Euroz Hartleys — Resources Analyst. Appointment of new Chief Executive Officer and Managing Director (p.1 lines 20–23)

Personal achievements

Relevant professional background and qualifications

Previous career / current appointment; exact periods only where stated · issuer reported · medium materiality

Issuer appointment release says 20+ years in mining engineering and corporate roles and identifies prior employers Blackstone Minerals, Resolute Mining and others.

Attribution: Individual involvement documented. This is an issuer-published career summary; it is not independent verification of every claimed contribution.

Relevance: The disclosed roles and qualifications bear on the executive’s managing director, chief executive officer responsibilities.

Appointment of new CEO and MD (announcement summary)

Governance and interests

CEO appointment and board-to-exploration transition are dated

30 Jan–2 Feb 2026 · issuer reported · medium materiality

Horizon announced Williamson as CEO/MD effective 2 Feb 2026 and said Leigh Ryan would resign as director that date and transition to GM Exploration; Ryan had served as MD since Dec 2020. Williamson was also a NED of Leeuwin Metals and Corazon Mining, and his Blackstone resignation was effective 31 Jan 2026.

Attribution: Individual involvement documented. This is a dated issuer disclosure; it documents role changes and concurrent directorships, not a governance breach.

Relevance: Clarifies current responsibility and transition overlap.

Appointment of new Chief Executive Officer and Managing Director (p.1 lines 6–34)

Suitability for the current role

Current role relevance is supported at title level

At evidence cutoff · analyst inference · medium materiality

Analyst inference: the disclosed current title indicates experience relevant to the assigned function. The record reviewed does not establish individual delivery outcomes or independently verify credentials beyond the cited issuer disclosure.

Attribution: Responsibility not applicable. This is an analytical role-fit judgment, not a claim of proven performance.

Relevance: Current role scope is directly relevant to team composition; evidence of delivery remains limited.

Appointment of new CEO and MD (30 January 2026 CEO appointment announcement summary.)

Evidence gaps

• Independent verification of the complete career chronology, education and professional memberships is not established by the sources reviewed.

• No comprehensive regulator, court, safety, environment or litigation-record review was completed; absence of a finding here is not a clearance.

• Individual contribution to employer outcomes and concurrent board interests require additional source-level verification.