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2026-11-06

← SLS management

Full background report

Nick Castleden

Managing Director / Chief Executive Officer

Career chronology

  • Since 24 January 2023: Solstice Minerals — Managing Director and CEO. 2026 Annual Report (Printed p.31, appointment and director biography.)

  • 2010–2021; precise start/end not established: Apollo Consolidated — Managing Director. 2026 Annual Report (Printed p.31, Castleden biography.)

Contributions and company outcomes

Apollo’s Rebecca resource and 2021 acquisition

2010–2021 · issuer reported · high materiality

Apollo’s 2021 annual report names Castleden managing director and reports an April 2021 Lake Rebecca mineral resource update of 29.1Mt at 1.2g/t for 1.105Moz. Solstice reports that Apollo acquired and delineated Rebecca during his tenure. Apollo disclosed Ramelius held 74.01% on 26 November 2021; Ramelius reports it obtained 100% control on 17 December 2021. These are company-level milestones and do not isolate Castleden’s individual contribution or establish a shareholder return.

Attribution: Role overlaps event; causation unproven. Managing-director role and company milestones overlap; the sources do not isolate his personal contribution or attribute project outcomes to him.

Relevance: Relevant experience for an explorer, without proving mine delivery.

Apollo Consolidated 2021 annual report (Printed pp.1 and 6–7: managing director and Lake Rebecca resource update.); 2026 Annual Report (Printed p.31 Castleden biography.); Update on Ramelius takeover offer (p.1 relevant interest and independent-director statement.); 2022 Annual Report (Key operational highlights, acquisition of the Rebecca Gold Project.)

Nanadie exploration and funding progressed

FY2026 and quarter ended 30 September 2026 · issuer reported · high materiality

Solstice’s September 2026 quarterly reports ongoing Nanadie drilling outside the existing 40.4Mt resource boundary and cash of A$41.3m with no debt. Its 2026 annual report describes an A$32.6m gross institutional placement and calls Nanadie an exploration discovery. These are company-reported results, not an updated resource, completed feasibility study, or operating mine.

Attribution: Role overlaps event; causation unproven. CEO oversight overlaps these reported activities; specific personal contribution is not isolated.

Relevance: Funding and exploration progress matter to the company’s current stage.

September 2026 Quarterly Activities Report (p.1 quarterly highlights and cash.); 2026 Annual Report (Printed pp.4 and 33, chair and financial position.)

Evidence gaps

  • The chair and CEO source establishes Apollo tenure by year, but exact Apollo dates, individual technical contribution, independent qualifications and later corporate records remain unverified.

  • Individual topic-by-topic searches, original regulator and court records, and complete prior-employer records were not fully researched; negative findings or clearance are not established.

  • Independent educational and membership verification was not completed.