Justin de Mellion

Career chronology

• Current role; start date not stated in selected roster: Cyprium Metals Limited — General Manager Nifty. Diggers & Dealers Presentation (Slide 17, board and management; 4 August 2026)

• Reported as general manager in 2025; exact start and end dates not confirmed: Newmont Tanami — General Manager, Tanami. Mining the Territory 2025 programme (2025 programme, speakers and presentation)

Contributions and company outcomes

Acid commissioning of Nifty heaps

2026-09-14 · issuer reported · medium materiality

The issuer reported acid commissioning of nifty heaps: commenced. This records an employer-level event; the reviewed evidence does not attribute the event to Justin de Mellion individually.

Attribution: Role overlaps event; causation unproven. The event occurred at the issuer level during the documented period; no source establishes this executive’s individual contribution or causal responsibility.

Relevance: Context for delivery and oversight in the current role; do not treat it as personal performance evidence.

Operations Update - Phase 1 Cathode Restart Project (page 1, Highlights and page 3)

Industrial safety

Nifty safety and earlier Tanami role

FY2026 to 30 October 2026 · issuer reported · medium materiality

Cyprium reported one recordable injury and no lost-time injuries for FY2026, and no lost-time injuries since construction began as at its 30 October 2026 quarterly. A 2025 conference programme identifies de Meillon as Newmont Tanami general manager; direct personal contribution to the Nifty safety results is not established.

Attribution: Role overlaps event; causation unproven. The evidence records company-level outcomes during the role; individual causation or blame has not been established.

Relevance: Provides operating and safety context for the Nifty site general manager.

2026 annual report (Printed page 14, health and safety performance); September 2026 quarterly activities (Page 1, highlights); Mining the Territory 2025 programme (2025 programme, speakers and presentation)

Former employer Tanami fatality

2025–2026 · documented · medium materiality

Newmont confirmed a worker died on 4 February 2026 at Tanami; operations were suspended and NT WorkSafe and police investigated. Newmont later said the incident occurred at the Tanami Expansion project and authorities were still investigating when its 2025 sustainability report was published in 2026. De Meillon was named Tanami general manager in a 2025 conference programme and joined Cyprium during the March 2026 quarter, but the exact dates of his departure and the event-to-tenure overlap have not been established.

Attribution: Employer context; no individual link established. His 2025 Tanami role is documented but his status on 4 February 2026, responsibility for the expansion project, and any personal causation are unverified. The fatality alone is not evidence of individual fault.

Relevance: Relevant prior-employer safety context for a current site operations role.

Mining the Territory 2025 programme (2025 programme, speakers); Media statement: Tanami incident (5 February 2026 media statement); Worker death at Tanami gold mine under investigation (5 February 2026, report of NT WorkSafe inquiry); Newmont 2025 sustainability report (Health and safety section, ongoing investigation); March 2026 quarterly activities (Printed page 10, March-quarter appointment)

Suitability for the current role

Role fit based on documented experience

As of 2026-10-31 · analyst inference · low materiality

His prior Tanami general-manager role is relevant to Nifty operations; his exact departure and any overlap with the 2026 fatality remain unknown.

Attribution: Responsibility not applicable. This is an evidence-limited analyst judgment, not an adverse claim about the executive.

Relevance: Role-specific experience and credentials are central to assessing the current position; the available record is insufficient for a positive or negative conclusion.

Mining the Territory 2025 programme (Speakers programme)

Evidence gaps

• Prior-employer dates and personal contribution to company outcomes are incompletely corroborated. Searches are screening-level and do not constitute court, sanctions or criminal clearance.

• Exact Tanami departure date and role at the time of the 4 February 2026 fatality remain unknown. The final NT WorkSafe and coronial investigation outcomes were not located in the sources reviewed.

• The selected V8 ledger spells the surname de Mellion, while issuer and external Tanami materials use de Meillon; employer and role support the match. Exact Nifty commencement date is not established.