# Dean Vallve

Chief Operating Officer

## Career chronology

- **Current role at cutoff; start date not established in the reviewed records: Golden Horse Minerals** — Chief Operating Officer. [Board and Management](<https://goldenhorseminerals.com/about-us/board-and-management/>) (Issuer management page, Dean Vallve entry)

- **Commenced 2025-10-20: Golden Horse Minerals** — Chief Operating Officer. [Golden Horse Appoints Chief Operating Officer](<https://wcsecure.weblink.com.au/clients/goldenhorseminerals/headline.aspx?headlineid=61290288>) (Appointment announcement, biography and commencement date)

- **Prior role; exact dates not stated: Brightstar Resources** — Senior leadership roles, including Chief Development Officer. [Golden Horse Appoints Chief Operating Officer](<https://wcsecure.weblink.com.au/clients/goldenhorseminerals/headline.aspx?headlineid=61290288>) (Prior senior roles paragraph)

- **Prior role; exact dates not stated: Calidus Resources** — Senior operational leadership; development of Warrawoona Gold Project. [Golden Horse Appoints Chief Operating Officer](<https://wcsecure.weblink.com.au/clients/goldenhorseminerals/headline.aspx?headlineid=61290288>) (Prior senior roles paragraph)

- **More than ten years before executive roles; exact dates not stated: WA resources sector** — Site-based geology and engineering roles across open pit and underground operations. [Golden Horse Appoints Chief Operating Officer](<https://wcsecure.weblink.com.au/clients/goldenhorseminerals/headline.aspx?headlineid=61290288>) (Career history paragraph)

## Contributions and company outcomes

### Golden Horse reported funded exploration and portfolio growth [dean-vallve_ghm_delivery_deep]

2025 · issuer reported · medium materiality

Golden Horse’s audited 2025 accounts report A$43.7 million cash at year end versus A$15.0 million in 2024 and a material increase in deferred exploration and evaluation costs. The company also announced a A$15 million placement in June 2025 and acquired the Sorrel copper project in July 2025. These company financing and portfolio outcomes do not establish personal executive contribution or successful mine development.

**Attribution:** Role overlaps event; causation unproven. The cited filings do not isolate an individual executive’s causal contribution.

**Relevance:** Provides financial and corporate execution context for senior management.

[Full Year Statutory Accounts December 2025](<https://www.marketindex.com.au/asx/ghm/announcements/full-year-statutory-accounts-december-2025-6A1318147>) (Statements of financial position and Note 8); [Full Year Statutory Accounts December 2025](<https://www.marketindex.com.au/asx/ghm/announcements/full-year-statutory-accounts-december-2025-6A1318147>) (Nature of the Sorrel asset acquisition; 2025 annual accounts)

## Suitability for the current role

### Relevance of current Chief Operating Officer role [dean_vallve_role_fit]

Current at 2026-10-09 · analyst inference · medium materiality

The issuer identifies Dean Vallve as Chief Operating Officer. This role is relevant to the company's current mining stage and needs; this is an analyst role-fit inference based on the disclosed title and company profile, not evidence of past personal performance. The reviewed sources do not establish a complete prior-employer chronology, independently verified credentials or full concurrent-interest list.

**Attribution:** Responsibility not applicable. This is a role-fit judgment, not an outcome or misconduct finding.

**Relevance:** Assesses alignment of disclosed responsibilities with current company needs.

[Board and Management](<https://goldenhorseminerals.com/about-us/board-and-management/>) (Issuer management page, Dean Vallve entry)

### Operational and project delivery background [dean-vallve_career_deep]

Prior roles and appointment effective 2025-10-20 · analyst inference · medium materiality

Appointment disclosure says Vallve has about 20 years in operational management, project delivery and technical leadership; prior senior roles at Brightstar and Calidus involved development of Warrawoona, management of the profitable Selkirk Mining JV and several feasibility studies to DFS level. The issuer says he holds a BSc in Mineral Exploration and Mining Geology and Graduate Diploma in Mining from WASM, an MBA and WA First Class Mine Manager’s Certificate. These are issuer claims, with limited project-level benchmarks and no independent qualification checks.

**Attribution:** Employer context; no individual link established. Prior employer/project milestones are not individually quantified or independently attributed to Vallve alone.

**Relevance:** Mine operations, feasibility and project delivery background fits COO responsibilities.

[Golden Horse Appoints Chief Operating Officer](<https://wcsecure.weblink.com.au/clients/goldenhorseminerals/headline.aspx?headlineid=61290288>) (Appointment announcement, prior roles, education and certificates)

## Evidence gaps

- Issuer biographies provide abbreviated careers rather than complete dated employment histories; some roles, achievements and credentials remain issuer-reported.

- The CRA late-filing issue is resolved as to outstanding returns and assessed tax, but penalties/interest remain payable or under follow-up; individual responsibility is not established.

- Focused web adverse searches did not amount to full regulator, court, credential, safety or environmental database searches across all former employers; no clearance conclusion is implied.