# Marcelo Matos Chief Executive Officer and Executive Director ## Career chronology - **Since 2020-11-27: Stanmore Resources** — Chief Executive Officer and Executive Director. [2025 annual financial report and Appendix 4E]() (Printed p3, CEO biography) ## Contributions and company outcomes ### Reported production and recent safety outcomes [smr-marcelo-matos-delivery] September quarter 2026 · issuer reported · medium materiality Stanmore reports 3.4 million tonnes of saleable production in the September 2026 quarter and no serious accidents in that quarter; its rolling serious-accident frequency rate was 0.53 as at 30 September. These are company-reported aggregate outcomes, not proof of a person's individual contribution. **Attribution:** Role overlaps event; causation unproven. The executive held a leadership role during the period; no personal causation is established. **Relevance:** Provides contemporaneous company operating and safety context. [Q3 2026 quarterly activities]() (Original ASX PDF pp1–2, production and safety) ## Business failures and setbacks ### Reported loss narrowed in first half [smr-marcelo-matos-financial] 2025–June 2026 · issuer reported · medium materiality Stanmore reported an after-tax loss of US$44.2 million for the six months ended June 2026 versus a US$50.5 million loss in the comparable 2025 half; company reports underlying EBITDA rose as prices increased. These group results do not establish individual responsibility. **Attribution:** Role overlaps event; causation unproven. The executive held a group role during the period; commodity prices and group factors affect results. **Relevance:** Financial performance context during the relevant tenure. [Appendix 4D and interim financial report for the half year ended 30 June 2026]() (ASX original PDF p1, comparative loss; operating review pp5–7) ## Environmental record ### Five mine-water infringement notices in 2025 [smr-marcelo-matos-water] 2025 · issuer reported · medium materiality Stanmore disclosed one infringement notice for Isaac Downs and four for Isaac Plains relating to non-compliant releases of mine-affected water in February, April and August 2025. The company described the incidents as minor. Their detailed regulatory findings and final outcomes were not independently established. **Attribution:** Role overlaps event; causation unproven. The company disclosed the notices during the executive's leadership tenure; the available source does not establish their personal involvement or fault. **Relevance:** Provides an environmental control outcome during the leadership period. [2025 annual financial report and Appendix 4E]() (Printed pp12 and 16, environmental regulation and operating review) ## Suitability for the current role ### Experience relevant to role [smr-marcelo-matos-fit] Career; dates as disclosed · analyst inference · low materiality Company reports prior Vale coal marketing and strategy and Vale Australia managing director roles. It reports a business administration degree from Pontifical Catholic University of Rio de Janeiro and an executive MBA from IBMEC; the degrees have not been independently verified. **Attribution:** Responsibility not applicable. The person's stated background is reported by the company. The inference about relevance is analytical; independent checks remain incomplete. **Relevance:** Relevant to the scope of the current role. [2025 annual financial report and Appendix 4E]() (Printed p3, CEO biography) ## Evidence gaps - This partial screening does not include dedicated person-specific searches for every fraud, safety, environmental, governance and legal topic, all material prior-employer records, original court or regulator registers, or independent credential verification. - One broad name-and-employer query is repeated across topic entries; it represents one actual search, not nine separate topic searches. - The exact continuation of some roles at 31 October 2026 is inferred from the latest accessible dated company materials and undated leadership page, not independently confirmed.