# Edmar Medeiros Technical Manager (recent secondary listing; current status unconfirmed) ## Career chronology - **Announced July 2020; current status unconfirmed: BBX Minerals / Brazilian Critical Minerals** — Technical Manager. [BBX FY2021 annual report]() (printed p.11); [BCM company profile and key executives]() (Key executives) ## Personal achievements ### Named technical manager and report contributor [medeiros_technical] 2020–2026 · issuer reported · medium materiality BBX announced the appointment of chemical engineer Edmar Medeiros as technical manager in July 2020, and its 2024 Três Estados statement identifies him as a test-result compiler. A secondary profile updated in October 2026 still lists that title; the current mandate was not confirmed by a dated recent issuer release. **Attribution:** Individual involvement documented. The named roles and contribution are issuer-reported; personal economic performance is not measured. **Relevance:** Evidence of processing and testing involvement, with current role uncertain. [BBX FY2021 annual report]() (printed p.11, corporate activities); [Final Três Estados bioleach report]() (p.3, competent person statement); [BCM company profile and key executives]() (Key executives and last-updated date) ## Business failures and setbacks ### Earlier bioleach work and a disputed supplier invoice [medeiros_ecobiome] 2023–2026 · issuer reported · medium materiality The FY2026 report says the Brazilian subsidiary could not replicate the supplier’s bacterial-leaching results in Brazil, terminated the licence in June 2024, and disputes a US$350,000 supplier invoice. The annual report does not identify who made the technical or commercial decisions. **Attribution:** Role overlaps event; causation unproven. Technical-manager involvement is documented in 2024; no personal failure, contractual fault or decision is established. **Relevance:** Relevant to assessing prior processing technology development. [Final Três Estados bioleach report]() (p.3, technical manager); [FY2026 annual report]() (printed p.48, note 13(b)) ## Suitability for the current role ### Chemical-engineering and processing background [medeiros_fit] 31 October 2026 · analyst inference · medium materiality Issuer statements identify a chemical engineer in a technical and assay role, relevant to metallurgical work. The plant’s commercial-scale project outcome and individual contribution remain unproven. **Attribution:** Responsibility not applicable. Analyst inference from reported role, not a claim of production delivery. **Relevance:** Relevant to process development. [BBX FY2021 annual report]() (printed p.11); [Final Três Estados bioleach report]() (p.3) ## Evidence gaps - No dated issuer confirmation of continued technical-management role after January 2024; recent third-party list may be stale. - Full prior employment, degree-awarding institution, and independent professional credentials not established. - The source does not attribute company bioleach or litigation outcome personally; original supplier and court records unavailable.