# Olivier Regnault Wellfields Technical Lead ## Career chronology - **Joined in September 2025; current in selected roster. Some later issuer transcript material uses Head of Technical Services and Planning: Boss Energy Limited** — Wellfields Technical Lead. [Management Team]() (leadership biography, lines 114–117); [Global Uranium Conference presentation]() (page 12, technical team biography); [Market Day 2026 transcript]() (management remarks, Olivier Regnault introduction); [Boss Energy Limited Q4 2026 earnings call transcript]() (management introduction and technical remarks) - **Before Boss; dates and exact sequence not established: Orano / KATCO** — Technical and operational roles; company presentation describes former Managing Director at KATCO. [Management Team]() (leadership biography, lines 114–117); [Global Uranium Conference presentation]() (page 12, technical team biography); [Olivier Regnault professional profile]() (self-reported experience section) - **Earlier career; dates not established: AREVA** — Research and development engineer, as reported on professional profile. [Olivier Regnault professional profile]() (self-reported experience section) ## Education and qualifications ### PhD in hydrogeology and geochemistry [regnault_education] Education; reported by cutoff · issuer reported · medium materiality Boss reports that Regnault holds a PhD in Hydrogeology and Geochemistry; the FY2026 earnings-call transcript identifies Mines Paris-PSL in his education remarks, and his research profile lists corresponding education. The exact award date and independent university credential verification were not located. **Attribution:** Responsibility not applicable. Education is relevant to ISR and groundwater work; the transcript and profile are not primary degree records. **Relevance:** Supports specialist technical fit while leaving credential verification incomplete. [Management Team]() (leadership biography, lines 114–117); [Boss Energy Limited Q4 2026 earnings call transcript]() (management education remarks, lines 156–159); [Olivier Regnault professional profile]() (self-reported education section) ## Personal achievements ### Co-authored peer-reviewed ISR reactive-transport research [regnault_technical_publication] 2022 · documented · low materiality A 2022 Hydrometallurgy paper on three-dimensional reactive-transport simulation for a large-scale uranium in-situ recovery wellfield lists Olivier Regnault as a co-author. This documents a technical research contribution; the paper does not establish sole authorship, operational implementation or a resulting production outcome. **Attribution:** Individual involvement documented. Co-authorship is documented; no sole responsibility or commercial result is inferred. **Relevance:** Adds independent technical evidence relevant to ISR modelling and wellfield work. [Three-dimensional reactive transport simulation of Uranium in situ recovery: Large-scale well field applications in Shu Saryssu Basin, Tortkuduk deposit (Kazakhstan)]() (article title, abstract and author list) ## Suitability for the current role ### ISR hydrogeology and technical research support wellfields role fit [regnault_fit] Career through 2026-10-10 · analyst inference · medium materiality Issuer disclosures describe more than 15 years in uranium operations and a PhD in hydrogeology/geochemistry. A peer-reviewed ISR reactive-transport paper lists Regnault as co-author, and a self-reported profile adds prior AREVA, KATCO and Orano roles. These sources support relevant specialization but do not independently establish his personal operating results; title variants remain unresolved. **Attribution:** Responsibility not applicable. The paper demonstrates co-authorship only; it does not establish responsibility for mine outcomes or current site events. **Relevance:** ISR, groundwater and wellfield expertise is directly relevant to Honeymoon; tenure and role-scope details remain issuer/self-reported. [Management Team]() (leadership biography, lines 114–117); [Three-dimensional reactive transport simulation of Uranium in situ recovery: Large-scale well field applications in Shu Saryssu Basin, Tortkuduk deposit (Kazakhstan)]() (article abstract and author list); [Olivier Regnault professional profile]() (self-reported experience and education); [Market Day 2026 transcript]() (management remarks, Olivier Regnault introduction) ### International ISR and uranium-operations experience [regnault_role_fit] By September 2025 · analyst inference · medium materiality Boss reports more than 15 years in mining operations across Kazakhstan, France, Canada and Africa and expertise in uranium in-situ leach, mine planning and modelling. The Oct-2025 presentation identifies KATCO in Kazakhstan and Orano as prior employers and a former KATCO managing-director position; individual operational results in those roles were not separately corroborated. **Attribution:** Responsibility not applicable. The sources establish background and technical remit, not personal accountability for employer-level operating outcomes. **Relevance:** Directly relevant to wellfield performance and groundwater process at Honeymoon. [Management Team]() (leadership biography, lines 114-117); [Global Uranium Conference presentation]() (page 12, technical team biography) ## Evidence gaps - Exact education award date and independent degree verification were not obtained; the education source is company/transcript/profile rather than a university record. - Self-reported KATCO/Orano role dates and the former Managing Director title were not independently verified; current title varies across issuer sources. - The 2022 co-authored paper demonstrates research publication, not personal operational outcomes at KATCO, Orano or Boss. - Foreign regulator, court, sanctions and criminal databases across the disclosed jurisdictions were not systematically searched; no clearance is implied.