# Peter Holmes Executive Director / Chair of Technical Committee ## Career chronology - **More than 30 years’ career; Barrick tenure length described as about 10 years in 2020 SolGold release, exact dates not stated: Barrick Gold / Placer Dome** — Senior Director, Project Execution and project/construction leadership. [Senior Board Appointments Strengthen Path to Development]() (p. 1, career summary) - **Appointed June 2020; led studies teams on Cascabel feasibility work: SolGold** — Director of Studies. [Senior Board Appointments Strengthen Path to Development]() (p. 1) - **Commenced February 2023; project director until Unico appointment in January 2026: De Grey Mining** — Hemi Project Director. [Senior Board Appointments Strengthen Path to Development]() (p. 1) - **Effective 27 January 2026: Unico Silver** — Executive Director; Chair, Technical Committee. [Senior Board Appointments Strengthen Path to Development]() (pp. 1–2) ## Education and qualifications ### Mining engineering and professional qualifications [usl_holmes_education] As reported 2023–2026 · issuer reported · medium materiality The 2026 appointment release reports postgraduate mining-engineering qualifications, Queensland First Class Mine Manager status, and prior tertiary qualifications in mining engineering and mineral technology. It names prior memberships in CIM, PMI and AACE in the 2023 De Grey appointment source; independent credential-body confirmation was not obtained. **Attribution:** Individual involvement documented. Issuer releases describe qualifications and professional memberships; primary institution or membership records were not reviewed. **Relevance:** Relevant to technical committee and project execution oversight. [Senior Board Appointments Strengthen Path to Development]() (p. 1, qualifications); [Board & Management]() (leadership biography) ## Contributions and company outcomes ### Hemi project leadership and large-capital project portfolio [usl_holmes_delivery] Barrick period (dates unknown); Hemi tenure from February 2023 to January 2026 · issuer reported · high materiality De Grey appointed Holmes Project Director for Hemi in February 2023, describing prior Barrick senior director responsibility over roughly US$9bn of construction projects, including Pueblo Viejo handover. Unico’s 2026 release says he was responsible for end-to-end Hemi delivery. De Grey later sold to Northern Star before Hemi entered production; the sources establish project leadership and study/construction-readiness remit, not a completed Hemi mine build or Holmes’s personal causal contribution to Barrick project outcomes. **Attribution:** Individual involvement documented. Dated issuer releases name his project responsibilities; no independent project completion evidence attributable to him was reviewed. **Relevance:** Highly relevant development/project execution experience; Hemi remains pre-production at transaction close. [Senior Board Appointments Strengthen Path to Development]() (p. 1, prior role and responsibilities) ## Suitability for the current role ### Role relevance and evidenced background [usl_peter_holmes_fit] Background reviewed through 2026-10-09 · analyst inference · low materiality The issuer reports 35+ years across mine development and operations, including De Grey Hemi project leadership, Barrick project execution and SolGold feasibility work; it lists tertiary mining-engineering and mineral-technology qualifications. Current title in the selected roster: Executive Director / Chair of Technical Committee. This supports role relevance at a high level; the public evidence reviewed does not establish personal causal responsibility for employer or project outcomes. **Attribution:** Responsibility not applicable. Role-fit judgment based on the selected roster and issuer-reported professional background; no causal claim is made. **Relevance:** Relevant to the current Executive Director / Chair of Technical Committee responsibilities, subject to the evidence limitations recorded below. [Board & Management]() (Executive biography or corporate-directory entry for the named person) ## Evidence gaps - Degree-granting institutions and dates were not established. - Barrick project-by-project results and Holmes’s precise individual accountabilities were not independently checked; large portfolio oversight does not imply responsibility for each outcome. - Hemi did not reach production during the sourced tenure before acquisition; completed construction, commissioning and operating performance therefore remain untested. - Targeted searches did not identify an individual adverse proceeding in the reviewed public results; this does not establish an exhaustive safety, legal or regulator history.