Julio Costa

Career chronology

• Current role; start date not established in reviewed sources: Syrah Resources Limited — Chief Operating Officer. Our Team (Syrah Our Team, Senior Management, lines 94–96)

• Immediately prior to Syrah appointment: Alcoa Corporation — General Manager, Pinjarra Alumina Refinery. Quarterly Activities Report – period ending 30 June 2018 (Quarterly report p.8.)

• Earlier career, dates not specified: Rio Tinto; Vale S.A. — Prior mining and processing roles. Quarterly Activities Report – period ending 30 June 2018 (Quarterly report p.8 says previous work across Australia, Brazil, Mozambique and North America.)

Suitability for the current role

Public evidence of fit for Chief Operating Officer

Current role and prior career as stated by issuer · analyst inference · low materiality

The issuer biography reports: Issuer identifies him as COO; the reviewed current team page contains no career or qualification chronology. Role-fit inference: this experience is relevant to the current Chief Operating Officer responsibilities, but issuer biographies are self-reported and do not independently establish personal delivery outcomes.

Attribution: Responsibility not applicable. This is an analyst role-fit judgment based on the cited role and issuer-reported experience; it does not assign personal responsibility for company outcomes.

Relevance: Relevant to the current Chief Operating Officer role, with evidence quality constrained by the source scope.

Our Team (Syrah Our Team, Senior Management, lines 94–96)

Evidence gaps

• The reviewed issuer material confirms the current title but does not provide a dated full career history or independently verifiable qualifications; prior roles and credentials therefore remain unverified.

• Open-web searches do not constitute an exhaustive criminal, sanctions, litigation, regulator, safety or credential check; sources outside the documented search scope may exist.