Tim Mason

Career chronology

• Current at roster date 2026-10-31; selected roster records appointment on 20 June 2025, while the FY26 Annual Report says 16 June 2025.: Black Cat Syndicate Limited — Chief Operating Officer. Black Cat Syndicate – About and management (Senior Leadership Team; COO biography and dated role details); Processing Update and Appointment of COO (Page 1; 20 June 2025 appointment announcement, with no separate effective date); 2026 Annual Report (Page 74; Annual Report says appointed 16 June 2025)

• January 2020 to February 2025; exact departure date not independently established: Eagle Mountain Mining Limited — Chief Executive Officer. Eagle Mountain Mining Annual Report 2023 (Annual Report CEO report); Horizon Gold Limited Prospectus (Executive profile and earlier employment)

• 2008 to 2015 (issuer biography); exact transitions partly conflict across profiles: Panoramic Resources Limited — Mining engineer, business analyst, General Manager and special-projects roles. Horizon Gold Limited Prospectus (Key Personnel profile; appointment in 2008 and GM Lanfranchi through Dec 2015)

• Before Panoramic; dates not stated: Newmont / GHD — Mining Engineer at Tanami; geotechnical engineer. Horizon Gold Limited Prospectus (Key Personnel profile)

• Prior career; exact dates and sequence relative to other listed roles not disclosed: Lanfranchi Nickel Mines — General Manager. Black Cat Syndicate – About and management (Senior Leadership Team; Tim Mason biography lists General Manager of Lanfranchi Nickel Mines)

Education and qualifications

Mining-engineering and MBA qualifications disclosed

By 2016-12-19 · issuer reported · low materiality

A 2016 prospectus records Mason as BEng (Geological Engineering) (Hons), MBA, GAICD, with a degree and MBA from Murdoch University. The reviewed record is issuer-filed but does not include independent university confirmation.

Attribution: Responsibility not applicable. Qualification information is issuer-reported; no direct verification with Murdoch University or AICD was made.

Relevance: Relevant to mine planning, project development and senior executive duties.

Horizon Gold Limited Prospectus (Key Personnel, Tim Mason)

Contributions and company outcomes

Oracle Ridge resource expansion under Eagle Mountain CEO tenure

2020-01 to 2023-12 · issuer reported · low materiality

Eagle Mountain’s 2023 CEO report and quarterly disclosure report Oracle Ridge had expanded to about 28Mt, with a 27% like-for-like increase in contained copper in the December 2023 estimate. Mason was CEO and commented on the development. By the reviewed 2023 report the project remained in metallurgical and mining studies; no production or commissioning was documented.

Attribution: Role overlaps event; causation unproven. Mason was CEO during the reported resource increase, but the issuer attributes the estimate to technical work by the company and competent persons; no sole personal contribution is established.

Relevance: Evidence of project advancement relevant to operational planning; not evidence of a delivered mine.

Eagle Mountain Mining Annual Report 2023 (CEO report, strategy and Oracle Ridge study stage); Eagle Mountain Mining Quarterly Activities Report, December 2023 (December 2023 quarter resource estimate); Oracle Ridge grows its resource to 28Mt; Tim Mason interview (Resource growth and pre-production context)

Record FY26 production and profit overlapped Mason's COO tenure

FY2026 · issuer reported · medium materiality

Black Cat's 2026 Annual Report describes record operating and financial outcomes: total gold production of 90,833oz including third-party ore, up 132% from 39,169oz in FY25; wholly owned production was 66,296oz, up 97%. Profit attributable to shareholders was A$86.455m versus a FY25 loss of A$25.946m. The report states Mason was appointed COO on 16 June 2025, before FY26 began. These issuer-reported company results overlap his operations role but are not attributed to him individually.

Attribution: Role overlaps event; causation unproven. Mason's COO tenure overlaps FY26; the report does not establish his personal causal contribution to production, profit or capital allocation.

Relevance: Quantified operating context during his current role, balanced against the safety and ramp-up issues separately recorded.

2026 Annual Report (Page 8; FY26 production and health-and-safety outcomes); 2026 Annual Report (Page 71; profit attributable to shareholders and annual share-price comparison); 2026 Annual Report (Page 74; KMP roles and appointment dates)

Business failures and setbacks

Kal East's geology, grade and mine-plan challenges overlapped Mason's COO tenure

Lakewood acquired in 2025; operating issues reported for 2026-07 to 2026-09 and on 2026-10-27 · issuer reported · medium materiality

The 23 October quarter report says the 2025 Lakewood purchase occurred ahead of mine-operating plans and resulted in less-than-optimal geological knowledge and mine performance at Kal East in the September quarter; the company says it reset mine plans at quarter end. On 27 October, Stone said the mines were about six months behind plan and that Kal East's grade decline remained a challenge. Mason had been COO since June 2025, so the later operating issues overlap his role; the 2025 acquisition preceded his appointment and no source connects him to the purchase, its due diligence, the grade decline or the delay's cause.

Attribution: Role overlaps event; causation unproven. The company links the geological-knowledge and mine-performance shortfall to acquisition timing; Mason joined after the acquisition and no personal decision or causal responsibility is established.

Relevance: Relevant to current operations oversight and execution; the company reported plan reset, not a completed recovery.

Quarterly Activities Report for the Quarter Ended 30 September 2026 (Page 1; operating highlights, cash-flow outlook and Managing Director remarks); Quarterly Activities Report for the Quarter Ended 30 September 2026 (Page 7; Lakewood July serious injury and Kal East operating performance); Black Cat Syndicate Limited Q1 2027 Investor Webcast Transcript (27 October webcast transcript, Q31–46; Stone's statements on schedule, Kal East grades, cash and capital)

Industrial safety

Five FY26 LTIs and a July Lakewood serious injury overlapped Mason's COO tenure

FY2026; 2026-04-01 to 2026-06-30 Paulsens LTIs; 2026-07 Lakewood serious injury · issuer reported · medium materiality

The June 2026 quarterly report recorded two lost-time injuries at Paulsens during April–June. Black Cat's FY26 Annual Report reports five LTIs for the full year and an annual TRIFR that improved 25% to 16.64; the June-quarter events fall within that annual period and are not additional to the five. The 23 October 2026 quarterly report separately says a Lakewood mill process operator fell from height in July 2026, was expected to return to work in October, and that the investigation was complete with actions still in progress. The new report does not name Mason or establish his personal causal responsibility. A search through 2 November found no later public confirmation of the worker's actual return or action close-out.

Attribution: Role overlaps event; causation unproven. Mason's COO tenure overlapped the disclosed operating periods, but the company reports do not identify personal causation or his role in either investigation. TRIFR improvement is a company-reported measure; actual return-to-work and action close-out remain unverified.

Relevance: Safety performance is material to the COO remit; events are oversight context, not a personal misconduct finding.

Activities Report for the Quarter Ended 30 June 2026 (Activities Report, Highlights and Paulsens operation: two LTIs and actions); 2026 Annual Report (Page 8; FY26 production and health-and-safety outcomes); Quarterly Activities Report for the Quarter Ended 30 September 2026 (Page 7; Lakewood July serious injury and Kal East operating performance)

Suitability for the current role

Role fit remains only partly evidenced

Current appointment through 2026-11-02; selected announcement date 2025-06-20, issuer-stated appointment date 2025-06-16 · analyst inference · low materiality

Mason is a mining engineer with a BEng (Geological Engineering, honours), MBA and GAICD reported in Horizon Gold's 2016 prospectus. His career spans Newmont Tanami, Panoramic Resources, five years as Eagle Mountain CEO and Black Cat COO from June 2025. The selected V8.1 company.json records 20 June 2025, matching the appointment announcement date; Black Cat's FY26 Annual Report says he was appointed on 16 June 2025, which is used as the best available commencement date. At Black Cat, his role overlaps FY26 production growth and the September 2026 quarter's Kal East ramp-up, but company disclosures do not attribute the output, grade issues, cost or mine-plan delays to Mason personally. The company reports a resource expansion and study phase at Oracle Ridge under his Eagle Mountain CEO tenure; no operating mine was delivered there during the reviewed period.

Attribution: Responsibility not applicable. This is an analytical role-fit assessment; it does not allege responsibility for outcomes.

Relevance: Relevant to current Chief Operating Officer duties at Black Cat Syndicate Limited.

Horizon Gold Limited Prospectus (Key Personnel, Tim Mason); Eagle Mountain Mining Annual Report 2023 (CEO statement / Oracle Ridge development status); Eagle Mountain Mining Quarterly Activities Report, December 2023 (December 2023 quarter, Oracle Ridge resource increase and studies); Black Cat Syndicate – About and management (Senior Leadership Team; Tim Mason biography, Lanfranchi role); Processing Update and Appointment of COO (Page 1; ASX announcement dated 20 June 2025 announces appointment but states no separate effective date); 2026 Annual Report (Page 74; KMP roles and appointment dates); Quarterly Activities Report for the Quarter Ended 30 September 2026 (Page 1; operating highlights, cash-flow outlook and Managing Director remarks); Quarterly Activities Report for the Quarter Ended 30 September 2026 (Page 7; Lakewood July serious injury and Kal East operating performance)

Evidence gaps

• No exhaustive individual criminal, sanctions, litigation, safety, environmental or regulatory record search was performed; logged open-web checks are limited and are not a clearance.

• Career dates are incomplete where cited issuer biographies give experience but no exact start/end dates; the listed chronology is not a complete CV.

• Employer outcomes are attributed to an individual only where the source explicitly connects that person to the action or responsibility.

• The selected roster records 20 June 2025 as the COO appointment date, while the FY26 Annual Report says 16 June; the 20 June announcement does not state a separate commencement date, so the conflict remains unresolved.

• FY26 and September-quarter operating outcomes are issuer-reported role-overlap context. The July Lakewood injury investigation was complete with actions in progress; no later public return-to-work or action close-out record was located by 2 November.