Capstone Copper Corp.

Career chronology

• From 2025-05-02 through cutoff: Capstone Copper — President and CEO. 2025 Annual Information Form (Directors and Officers, executive table)

• 2015–2021: Hudbay Minerals — Senior Vice President and Chief Operating Officer. 2026 Management Information Circular (Executive Director, professional experience)

Education and qualifications

Role history and reported qualifications

through October 2026 · issuer reported · medium materiality

Previously Hudbay Senior VP and COO during 2015–2021 and Capstone president and COO during 2022–2025. Capstone reports an advanced major in geology and chemistry and a professional geoscientist designation.

Attribution: Responsibility not applicable. Positions and education are reported by issuers; independent credential verification is incomplete.

Relevance: Relevant role history, with limits on dates and credential verification.

Senior and corporate leadership (Cashel Meagher biography); 2026 Management Information Circular (executive-director professional experience)

Contributions and company outcomes

Mantoverde commercial production and financial result

2024–2026 · issuer reported · medium materiality

Capstone announced commercial production at its Mantoverde Development Project on 21 September 2024, while noting its 2024 portfolio output was trending toward the low end of guidance and costs slightly above guidance. The October 2026 report said Q3 adjusted EBITDA rose, supported by higher realized metal prices.

Attribution: Role overlaps event; causation unproven. The milestones and financial outcome are company results and reflect multiple teams and commodity prices; no individual contribution is quantified.

Relevance: Relevant delivery context with financial and timing limits.

Mantoverde commercial production (commercial production and 2024 outlook); Third Quarter 2026 Results (Q3 2026 financial highlights)

Business failures and setbacks

Recent production and cost deterioration

July–October 2026 · issuer reported · medium materiality

Capstone reported Q3 2026 copper output of 45,218 tonnes, 18% lower year-on-year, and C1 costs of US$2.95/lb versus US$2.42/lb. It attributed lower production in part to Pinto Valley unplanned maintenance and a planned shutdown; crusher commissioning identified additional repairs.

Attribution: Role overlaps event; causation unproven. Company-wide outcome during senior management tenure; the sources do not attribute specific decisions or causation to this individual.

Relevance: Relevant operating and financial context.

Third Quarter 2026 Results (Consolidated Production and Pinto Valley)

Industrial safety

Four commuting deaths and company labour fine

June 2023–January 2025 · documented · high materiality

Four Mantoverde workers died in a June 2023 road crash while returning home. In January 2025 a Copiapó appeals court upheld a 60 UTM labour fine against Mantoverde for failure to enforce employee-transport safeguards. The court said the labour-fine dispute did not determine civil accident causation.

Attribution: Role overlaps event; causation unproven. The cited labour ruling concerns the employer. The reviewed sources do not establish this executive’s personal responsibility or civil causation.

Relevance: A material company safety matter, distinct from on-site fatality metrics.

Four Mantoverde employees die in journey crash (7 June 2023 accident report and company statement); Copiapó court upholds labour fine (22 January 2025 appellate decision summary)

Fatal fall at Hudbay Lalor during COO tenure

June 2021 · documented · high materiality

Hudbay reports a worker employed by a service provider died in a June 2021 fall at its Lalor underground mine. The company says operations were suspended and its internal investigation identified absent controls and corrective actions. Meagher was Hudbay COO during 2015–2021.

Attribution: Role overlaps event; causation unproven. Employment overlap and corporate role do not establish personal responsibility for the accident.

Relevance: Relevant safety-oversight context.

Fall-from-heights incidents (2021 fatal incident and investigation); 2026 Management Information Circular (Meagher, Hudbay employment)

Environmental record

Mantos Blancos regulatory process remains ongoing

2022–October 2026 · documented · medium materiality

Chile’s SMA rejected Mantos Copper’s proposed compliance plan in August 2024 within a proceeding opened in 2022. Capstone reports that the operator appealed the rejection but later withdrew that appeal. The SMA register listed the proceeding ongoing when checked at the cutoff.

Attribution: Role overlaps event; causation unproven. The proceeding concerns the operator; the reviewed sources do not establish this executive’s personal fault.

Relevance: Relevant to environmental and governance oversight, without inferring wrongdoing.

SMA rejects Mantos Copper compliance plan (13 August 2024 rejection); Mantos Blancos enforcement file D-064-2022 (D-064-2022 status and documents); 2025 sustainability report, filed copy (Business Integrity, regulatory proceedings)

Mantoverde process-water releases

2025, disclosed June 2026 · issuer reported · medium materiality

Capstone reports two 2025 releases from the tailings facility downstream slope during construction, totaling one million litres of process water. It says they were reported, investigated and resolved with no permanent environmental impacts identified; independent incident records were not obtained.

Attribution: Role overlaps event; causation unproven. The company reports the incidents; no personal action or fault is established.

Relevance: Relevant to tailings and environmental oversight.

2025 sustainability report, filed copy (Tailings and Waste, 2025 site performance; Business Integrity incidents)

Governance and interests

Constancia community protests and production

2015–2019 · issuer reported · medium materiality

Hudbay reported 2016 community protests, a roadblock and brief occupation that led to a temporary suspension, and described a peaceful resolution. Hudbay separately reported the mine moved into full production in 2015 and achieved record throughput in 2019.

Attribution: Role overlaps event; causation unproven. Company achievements and community outcomes occurred during a senior operations role but do not prove individual causation.

Relevance: Balances operational delivery with community-relations challenges.

Constancia community relationships (A Foundation for Rewarding Community Relationships); Constancia: Record Results (Constancia construction and production)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — SVP and CFO. 2025 Annual Information Form (Directors and Officers, executive table)

Education and qualifications

Role history and reported qualifications

through October 2026 · issuer reported · medium materiality

Capstone reports he joined in 2018 after thirteen years at Goldcorp in finance and business-planning roles, and reports a Canadian CPA, CA designation.

Attribution: Responsibility not applicable. Positions and education are reported by issuers; independent credential verification is incomplete.

Relevance: Relevant role history, with limits on dates and credential verification.

Senior and corporate leadership (Raman Randhawa biography); 2025 Annual Information Form (Directors and Officers)

Business failures and setbacks

Recent production and cost deterioration

July–October 2026 · issuer reported · medium materiality

Capstone reported Q3 2026 copper output of 45,218 tonnes, 18% lower year-on-year, and C1 costs of US$2.95/lb versus US$2.42/lb. It attributed lower production in part to Pinto Valley unplanned maintenance and a planned shutdown; crusher commissioning identified additional repairs.

Attribution: Role overlaps event; causation unproven. Company-wide outcome during senior management tenure; the sources do not attribute specific decisions or causation to this individual.

Relevance: Relevant operating and financial context.

Third Quarter 2026 Results (Consolidated Production and Pinto Valley)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — SVP Risk ESG and General Counsel. 2025 Annual Information Form (Directors and Officers, executive table)

Education and qualifications

Role history and reported qualifications

through October 2026 · issuer reported · medium materiality

Capstone describes prior senior legal and compliance roles at Central 1 Credit Union and Weyerhaeuser, and reports law, tax and MBA qualifications and an ICD.D designation.

Attribution: Responsibility not applicable. Positions and education are reported by issuers; independent credential verification is incomplete.

Relevance: Relevant role history, with limits on dates and credential verification.

Senior and corporate leadership (Wendy King biography)

Business failures and setbacks

Recent production and cost deterioration

July–October 2026 · issuer reported · medium materiality

Capstone reported Q3 2026 copper output of 45,218 tonnes, 18% lower year-on-year, and C1 costs of US$2.95/lb versus US$2.42/lb. It attributed lower production in part to Pinto Valley unplanned maintenance and a planned shutdown; crusher commissioning identified additional repairs.

Attribution: Role overlaps event; causation unproven. Company-wide outcome during senior management tenure; the sources do not attribute specific decisions or causation to this individual.

Relevance: Relevant operating and financial context.

Third Quarter 2026 Results (Consolidated Production and Pinto Valley)

Industrial safety

Four commuting deaths and company labour fine

June 2023–January 2025 · documented · high materiality

Four Mantoverde workers died in a June 2023 road crash while returning home. In January 2025 a Copiapó appeals court upheld a 60 UTM labour fine against Mantoverde for failure to enforce employee-transport safeguards. The court said the labour-fine dispute did not determine civil accident causation.

Attribution: Role overlaps event; causation unproven. The cited labour ruling concerns the employer. The reviewed sources do not establish this executive’s personal responsibility or civil causation.

Relevance: A material company safety matter, distinct from on-site fatality metrics.

Four Mantoverde employees die in journey crash (7 June 2023 accident report and company statement); Copiapó court upholds labour fine (22 January 2025 appellate decision summary)

Environmental record

Mantos Blancos regulatory process remains ongoing

2022–October 2026 · documented · high materiality

Chile’s SMA rejected Mantos Copper’s proposed compliance plan in August 2024 within a proceeding opened in 2022. Capstone reports that the operator appealed the rejection but later withdrew that appeal. The SMA register listed the proceeding ongoing when checked at the cutoff.

Attribution: Role overlaps event; causation unproven. The proceeding concerns the operator; the reviewed sources do not establish this executive’s personal fault.

Relevance: Relevant to environmental and governance oversight, without inferring wrongdoing.

SMA rejects Mantos Copper compliance plan (13 August 2024 rejection); Mantos Blancos enforcement file D-064-2022 (D-064-2022 status and documents); 2025 sustainability report, filed copy (Business Integrity, regulatory proceedings)

Mantoverde process-water releases

2025, disclosed June 2026 · issuer reported · medium materiality

Capstone reports two 2025 releases from the tailings facility downstream slope during construction, totaling one million litres of process water. It says they were reported, investigated and resolved with no permanent environmental impacts identified; independent incident records were not obtained.

Attribution: Role overlaps event; causation unproven. The company reports the incidents; no personal action or fault is established.

Relevance: Relevant to tailings and environmental oversight.

2025 sustainability report, filed copy (Tailings and Waste, 2025 site performance; Business Integrity incidents)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — SVP Technical Services. 2025 Annual Information Form (Directors and Officers, executive table)

Education and qualifications

Role history and reported qualifications

through October 2026 · issuer reported · medium materiality

Capstone reports that he joined as VP Technical Services in April 2022, became SVP in August 2023, and was previously Hudbay VP Technical Services. It reports engineering degrees from Arizona and McGill.

Attribution: Responsibility not applicable. Positions and education are reported by issuers; independent credential verification is incomplete.

Relevance: Relevant role history, with limits on dates and credential verification.

Senior and corporate leadership (Peter Amelunxen biography); 2025 Annual Information Form (Directors and Officers)

Business failures and setbacks

Recent production and cost deterioration

July–October 2026 · issuer reported · medium materiality

Capstone reported Q3 2026 copper output of 45,218 tonnes, 18% lower year-on-year, and C1 costs of US$2.95/lb versus US$2.42/lb. It attributed lower production in part to Pinto Valley unplanned maintenance and a planned shutdown; crusher commissioning identified additional repairs.

Attribution: Role overlaps event; causation unproven. Company-wide outcome during senior management tenure; the sources do not attribute specific decisions or causation to this individual.

Relevance: Relevant operating and financial context.

Third Quarter 2026 Results (Consolidated Production and Pinto Valley)

Environmental record

Mantos Blancos regulatory process remains ongoing

2022–October 2026 · documented · medium materiality

Chile’s SMA rejected Mantos Copper’s proposed compliance plan in August 2024 within a proceeding opened in 2022. Capstone reports that the operator appealed the rejection but later withdrew that appeal. The SMA register listed the proceeding ongoing when checked at the cutoff.

Attribution: Role overlaps event; causation unproven. The proceeding concerns the operator; the reviewed sources do not establish this executive’s personal fault.

Relevance: Relevant to environmental and governance oversight, without inferring wrongdoing.

SMA rejects Mantos Copper compliance plan (13 August 2024 rejection); Mantos Blancos enforcement file D-064-2022 (D-064-2022 status and documents); 2025 sustainability report, filed copy (Business Integrity, regulatory proceedings)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — SVP Corporate Development. 2025 Annual Information Form (Directors and Officers, executive table)

Education and qualifications

Role history and reported qualifications

through October 2026 · issuer reported · medium materiality

Capstone describes prior corporate development and integration positions at Mantos Copper, AuRico and Barrick and reports economics degrees and a CFA designation.

Attribution: Responsibility not applicable. Positions and education are reported by issuers; independent credential verification is incomplete.

Relevance: Relevant role history, with limits on dates and credential verification.

Senior and corporate leadership (Chris Richter biography)

Business failures and setbacks

Recent production and cost deterioration

July–October 2026 · issuer reported · medium materiality

Capstone reported Q3 2026 copper output of 45,218 tonnes, 18% lower year-on-year, and C1 costs of US$2.95/lb versus US$2.42/lb. It attributed lower production in part to Pinto Valley unplanned maintenance and a planned shutdown; crusher commissioning identified additional repairs.

Attribution: Role overlaps event; causation unproven. Company-wide outcome during senior management tenure; the sources do not attribute specific decisions or causation to this individual.

Relevance: Relevant operating and financial context.

Third Quarter 2026 Results (Consolidated Production and Pinto Valley)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — SVP and Chief Operating Officer. 2025 Annual Information Form (Directors and Officers, executive table)

Education and qualifications

Role history and reported qualifications

through October 2026 · issuer reported · medium materiality

Capstone reports his 2023 appointment as Chile head and 2025 promotion to COO after roles at BHP Escondida, OceanaGold Haile and Barrick. It reports an extractive-metallurgy degree and executive MBA.

Attribution: Responsibility not applicable. Positions and education are reported by issuers; independent credential verification is incomplete.

Relevance: Relevant role history, with limits on dates and credential verification.

Senior and corporate leadership (James Whittaker biography); Second Quarter 2023 Results (Management additions: Whittaker)

Contributions and company outcomes

Mantoverde commercial production and financial result

2024–2026 · issuer reported · medium materiality

Capstone announced commercial production at its Mantoverde Development Project on 21 September 2024, while noting its 2024 portfolio output was trending toward the low end of guidance and costs slightly above guidance. The October 2026 report said Q3 adjusted EBITDA rose, supported by higher realized metal prices.

Attribution: Role overlaps event; causation unproven. The milestones and financial outcome are company results and reflect multiple teams and commodity prices; no individual contribution is quantified.

Relevance: Relevant delivery context with financial and timing limits.

Mantoverde commercial production (commercial production and 2024 outlook); Third Quarter 2026 Results (Q3 2026 financial highlights)

Business failures and setbacks

Recent production and cost deterioration

July–October 2026 · issuer reported · medium materiality

Capstone reported Q3 2026 copper output of 45,218 tonnes, 18% lower year-on-year, and C1 costs of US$2.95/lb versus US$2.42/lb. It attributed lower production in part to Pinto Valley unplanned maintenance and a planned shutdown; crusher commissioning identified additional repairs.

Attribution: Role overlaps event; causation unproven. Company-wide outcome during senior management tenure; the sources do not attribute specific decisions or causation to this individual.

Relevance: Relevant operating and financial context.

Third Quarter 2026 Results (Consolidated Production and Pinto Valley)

Industrial safety

Four commuting deaths and company labour fine

June 2023–January 2025 · documented · high materiality

Four Mantoverde workers died in a June 2023 road crash while returning home. In January 2025 a Copiapó appeals court upheld a 60 UTM labour fine against Mantoverde for failure to enforce employee-transport safeguards. The court said the labour-fine dispute did not determine civil accident causation.

Attribution: Employer context; no individual link established. Whittaker joined as head of Chile on 1 August 2023, after the accident. The cited labour ruling concerns the employer; the reviewed sources do not establish his personal responsibility or civil causation.

Relevance: A material company safety matter, distinct from on-site fatality metrics.

Four Mantoverde employees die in journey crash (7 June 2023 accident report and company statement); Copiapó court upholds labour fine (22 January 2025 appellate decision summary); Second Quarter 2023 Results (Management Additions, James Whittaker appointment)

Environmental record

Mantos Blancos regulatory process remains ongoing

2022–October 2026 · documented · medium materiality

Chile’s SMA rejected Mantos Copper’s proposed compliance plan in August 2024 within a proceeding opened in 2022. Capstone reports that the operator appealed the rejection but later withdrew that appeal. The SMA register listed the proceeding ongoing when checked at the cutoff.

Attribution: Role overlaps event; causation unproven. The proceeding concerns the operator; the reviewed sources do not establish this executive’s personal fault.

Relevance: Relevant to environmental and governance oversight, without inferring wrongdoing.

SMA rejects Mantos Copper compliance plan (13 August 2024 rejection); Mantos Blancos enforcement file D-064-2022 (D-064-2022 status and documents); 2025 sustainability report, filed copy (Business Integrity, regulatory proceedings)

Mantoverde process-water releases

2025, disclosed June 2026 · issuer reported · medium materiality

Capstone reports two 2025 releases from the tailings facility downstream slope during construction, totaling one million litres of process water. It says they were reported, investigated and resolved with no permanent environmental impacts identified; independent incident records were not obtained.

Attribution: Role overlaps event; causation unproven. The company reports the incidents; no personal action or fault is established.

Relevance: Relevant to tailings and environmental oversight.

2025 sustainability report, filed copy (Tailings and Waste, 2025 site performance; Business Integrity incidents)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• From 2026-07-01 through cutoff: Capstone Copper — General Manager Santo Domingo. Second Quarter 2026 Results (Management Additions)

Education and qualifications

Role history and reported qualifications

through October 2026 · issuer reported · medium materiality

Capstone reports his appointment to Mantos Blancos in October 2023 and transfer to Santo Domingo from July 2026, following roles at Codelco and BHP.

Attribution: Responsibility not applicable. Positions and education are reported by issuers; independent credential verification is incomplete.

Relevance: Relevant role history, with limits on dates and credential verification.

Third Quarter 2023 Results (Management Additions); Second Quarter 2026 Results (Management Additions)

Environmental record

Mantos Blancos regulatory process remains ongoing

2022–October 2026 · documented · high materiality

Chile’s SMA rejected Mantos Copper’s proposed compliance plan in August 2024 within a proceeding opened in 2022. Capstone reports that the operator appealed the rejection but later withdrew that appeal. The SMA register listed the proceeding ongoing when checked at the cutoff.

Attribution: Role overlaps event; causation unproven. Rivera became Mantos Blancos general manager on 17 October 2023, after the proceeding began. The operator’s submissions are recorded separately; the reviewed sources do not establish his personal fault.

Relevance: Relevant to environmental and governance oversight, without inferring wrongdoing.

SMA rejects Mantos Copper compliance plan (13 August 2024 rejection); Mantos Blancos enforcement file D-064-2022 (D-064-2022 status and documents); 2025 sustainability report, filed copy (Business Integrity, regulatory proceedings); Third Quarter 2023 Results (Management Additions, Jaime Rivera appointment)

Governance and interests

Signed company response to Mantos Blancos proceeding

August–September 2024 · documented · medium materiality

Rivera signed Mantos Copper’s 2024 written defense seeking dismissal of the regulator charges or a lesser sanction. This is the operator’s submission; the regulator’s rejection and ongoing case are described separately.

Attribution: Individual involvement documented. His documented action is signing submissions on behalf of the operator; that does not establish responsibility for underlying alleged noncompliance or validate the company’s defense.

Relevance: Directly documented regulator engagement relevant to environmental oversight.

Mantos Copper written defense, D-064-2022 (pp.1 and 82, position and signature)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

• The separate notice said to describe continuing controls could not be independently reviewed during audit.

Career chronology

• From 2026-07-01 through cutoff: Capstone Copper — General Manager Mantos Blancos. Second Quarter 2026 Results (Management Additions)

• October 2022–31 May 2024: Codelco — General Manager, Chuquicamata. Christian Caviedes biography (p.1); Codelco notification of Caviedes departure (p.1)

Education and qualifications

Role history and reported qualifications

through October 2026 · issuer reported · medium materiality

Codelco reports his Chuquicamata senior roles and mining-engineering qualification, and notified the end of his service on 31 May 2024; Capstone appointed him Mantos Blancos GM from 1 July 2026.

Attribution: Responsibility not applicable. Positions and education are reported by issuers; independent credential verification is incomplete.

Relevance: Relevant role history, with limits on dates and credential verification.

Christian Caviedes biography (p.1, experience and education); Codelco notification of Caviedes departure (p.1); Second Quarter 2026 Results (Management Additions)

Environmental record

Mantos Blancos regulatory process remains ongoing

2022–October 2026 · documented · high materiality

Chile’s SMA rejected Mantos Copper’s proposed compliance plan in August 2024 within a proceeding opened in 2022. Capstone reports that the operator appealed the rejection but later withdrew that appeal. The SMA register listed the proceeding ongoing when checked at the cutoff.

Attribution: Employer context; no individual link established. Caviedes became Mantos Blancos general manager on 1 July 2026, after the 2022 proceeding began and the 2024 rejection. The reviewed sources do not establish his personal fault.

Relevance: Relevant to environmental and governance oversight, without inferring wrongdoing.

SMA rejects Mantos Copper compliance plan (13 August 2024 rejection); Mantos Blancos enforcement file D-064-2022 (D-064-2022 status and documents); 2025 sustainability report, filed copy (Business Integrity, regulatory proceedings); Second Quarter 2026 Results (Management Additions, Christian Caviedes appointment)

Governance and interests

Codelco union-surveillance case during prior management

2023–2025 · documented · high materiality

A Chilean labour-court summary reports that Codelco’s Chuquicamata division engaged in anti-union practices involving surveillance on 10–11 October 2023, and imposed a 300 UTM fine, damages and cessation and apology orders against Codelco. Codelco later published an apology accepting the ruling. Caviedes was the division GM at the time and left in May 2024. Separate media alleged a connection between his departure and the surveillance complaint; Codelco’s formal notice did not state a reason. The court summary reviewed does not make a personal finding against him.

Attribution: Role overlaps event; causation unproven. The labour ruling is against Codelco, not the executive; the reported reason for departure is a media allegation and was not independently established. No personal legal responsibility is inferred.

Relevance: Material former-employer governance and leadership context.

Calama labour court ruling summary, case S-8-2023 (pp.1–2 court summary and orders); Codelco public apology, case S-8-2023 (p.1 Codelco public apology); Codelco notification of Caviedes departure (p.1 departure disclosure); Reporting on Caviedes departure (31 May reporting, attributed allegation)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• Full labour judgment, later appeal record if any, and Caviedes’s own response were not located in reviewed sources.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — Chief Financial Officer, Chile. Senior and corporate leadership (Corporate Leadership Team, Fernando Garcia L.)

Suitability for the current role

Role fit based on limited disclosed role

assessment at cutoff · analyst inference · medium materiality

The issuer lists Fernando Garcia L. as Chief Financial Officer, Chile. The role is relevant to the company’s operations, but the page provides no detailed biography or independently established outcome.

Attribution: Responsibility not applicable. A role-based assessment is not proof of personal delivery.

Relevance: Role context only, with low evidence confidence.

Senior and corporate leadership (Corporate Leadership Team, Fernando Garcia L.)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The full appointment and current role history, previous employment and credentials require additional corroboration.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — Vice President, Operational Excellence. Senior and corporate leadership (Corporate Leadership Team, Hayden Halsted)

Education and qualifications

Role history and reported qualifications

through October 2026 · issuer reported · medium materiality

Capstone announced his August 2023 appointment as VP mining and maintenance after senior roles with STRACON. Its undated leadership page later lists operational excellence.

Attribution: Responsibility not applicable. Positions and education are reported by issuers; independent credential verification is incomplete.

Relevance: Relevant role history, with limits on dates and credential verification.

Second Quarter 2023 Results (Management Additions); Senior and corporate leadership (Hayden Halsted)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The full appointment and current role history, previous employment and credentials require additional corroboration.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — Vice President, Corporate Development. Senior and corporate leadership (Corporate Leadership Team, Matt Kopman)

Suitability for the current role

Role fit based on limited disclosed role

assessment at cutoff · analyst inference · medium materiality

The issuer lists Matt Kopman as Vice President, Corporate Development. The role is relevant to the company’s operations, but the page provides no detailed biography or independently established outcome.

Attribution: Responsibility not applicable. A role-based assessment is not proof of personal delivery.

Relevance: Role context only, with low evidence confidence.

Senior and corporate leadership (Corporate Leadership Team, Matt Kopman)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The full appointment and current role history, previous employment and credentials require additional corroboration.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — Vice President, Strategic Planning & Evaluations. Senior and corporate leadership (Corporate Leadership Team, Lyndsay Potts)

Education and qualifications

Role history and reported qualifications

through October 2026 · issuer reported · medium materiality

Capstone’s 2023 circular says Potts started as Pinto Valley mine manager in January 2023 following leadership roles at Newcrest Cadia; its 2022 sustainability report instead says she became Pinto Valley general manager in 2022. The undated issuer leadership page lists strategic planning and evaluations.

Attribution: Responsibility not applicable. Positions and education are reported by issuers; independent credential verification is incomplete.

Relevance: Relevant role history, with limits on dates and credential verification.

2023 Management Information Circular (Executive summary, Pinto Valley, p. iii); 2022 sustainability report, Pinto Valley leadership (2022 Highlights, p. 8); Senior and corporate leadership (Corporate Leadership Team, Lyndsay Potts)

Environmental record

Cadia 2018 tailings containment incident

2018–2020 · issuer reported · medium materiality

Newcrest’s technical report says the northern tailings facility embankment slumped in March 2018, releasing material into a southern facility; a 2019 independent panel attributed the dominant location factor to a previously unidentified weak foundation unit. Capstone reported that Potts held several roles at Cadia over 13 years; her exact position in March 2018 is not established.

Attribution: Employer context; no individual link established. No role on the tailings facility or personal causation is established.

Relevance: Prior-employer safety and environmental context.

Cadia 2020 technical report (Executive Summary, section 1.17.4, tailings event and review); 2023 Management Information Circular (Executive summary, Pinto Valley, p. iii)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• Precise Cadia role and responsibility in March 2018 are unverified.

• The full appointment and current role history, previous employment and credentials require additional corroboration.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

• Capstone disclosures conflict on the Pinto Valley start: 2022 versus January 2023.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — Vice President, Investor Relations. Senior and corporate leadership (Corporate Leadership Team, Daniel Sampieri)

Education and qualifications

Role history and reported qualifications

through October 2026 · issuer reported · medium materiality

The issuer identified Sampieri as VP Investor Relations in an April 2026 regulatory release; its undated leadership page lists the same role.

Attribution: Responsibility not applicable. Positions and education are reported by issuers; independent credential verification is incomplete.

Relevance: Relevant role history, with limits on dates and credential verification.

Q1 2026 filings (p.1 contact role); Senior and corporate leadership (Daniel Sampieri)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The full appointment and current role history, previous employment and credentials require additional corroboration.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — Vice President, Legal & Compliance. Senior and corporate leadership (Corporate Leadership Team, Charmane Sing)

Suitability for the current role

Role fit based on limited disclosed role

assessment at cutoff · analyst inference · medium materiality

The issuer lists Charmane Sing as Vice President, Legal & Compliance. The role is relevant to the company’s operations, but the page provides no detailed biography or independently established outcome.

Attribution: Responsibility not applicable. A role-based assessment is not proof of personal delivery.

Relevance: Role context only, with low evidence confidence.

Senior and corporate leadership (Corporate Leadership Team, Charmane Sing)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The full appointment and current role history, previous employment and credentials require additional corroboration.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — Vice President, Treasurer. Senior and corporate leadership (Corporate Leadership Team, Ian Stephenson)

Suitability for the current role

Role fit based on limited disclosed role

assessment at cutoff · analyst inference · medium materiality

The issuer lists Ian Stephenson as Vice President, Treasurer. The role is relevant to the company’s operations, but the page provides no detailed biography or independently established outcome.

Attribution: Responsibility not applicable. A role-based assessment is not proof of personal delivery.

Relevance: Role context only, with low evidence confidence.

Senior and corporate leadership (Corporate Leadership Team, Ian Stephenson)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The full appointment and current role history, previous employment and credentials require additional corroboration.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — Vice President, Health, Safety & Environment. Senior and corporate leadership (Corporate Leadership Team, David Taylor)

Education and qualifications

Role history and reported qualifications

through October 2026 · issuer reported · medium materiality

The issuer announced his February 2024 appointment in health and safety and reported prior HSE work at Stantec, Golder, Stratcon (as spelled in the issuer filing), Sierra Gorda and SNC-Lavalin.

Attribution: Responsibility not applicable. Positions and education are reported by issuers; independent credential verification is incomplete.

Relevance: Relevant role history, with limits on dates and credential verification.

Q1 2024 MD&A (Management Additions); Senior and corporate leadership (David Taylor)

Industrial safety

Four commuting deaths and company labour fine

June 2023–January 2025 · documented · high materiality

Four Mantoverde workers died in a June 2023 road crash while returning home. In January 2025 a Copiapó appeals court upheld a 60 UTM labour fine against Mantoverde for failure to enforce employee-transport safeguards. The court said the labour-fine dispute did not determine civil accident causation.

Attribution: Employer context; no individual link established. Taylor joined Capstone on 20 February 2024, after the accident. The cited labour ruling concerns the employer; the reviewed sources do not establish his personal responsibility or civil causation.

Relevance: A material company safety matter, distinct from on-site fatality metrics.

Four Mantoverde employees die in journey crash (7 June 2023 accident report and company statement); Copiapó court upholds labour fine (22 January 2025 appellate decision summary); Q1 2024 MD&A (p. 10, Management Additions, David Taylor appointment)

Environmental record

Mantos Blancos regulatory process remains ongoing

2022–October 2026 · documented · medium materiality

Chile’s SMA rejected Mantos Copper’s proposed compliance plan in August 2024 within a proceeding opened in 2022. Capstone reports that the operator appealed the rejection but later withdrew that appeal. The SMA register listed the proceeding ongoing when checked at the cutoff.

Attribution: Employer context; no individual link established. The proceeding concerns the operator; the reviewed sources do not establish this executive’s personal fault.

Relevance: Relevant to environmental and governance oversight, without inferring wrongdoing.

SMA rejects Mantos Copper compliance plan (13 August 2024 rejection); Mantos Blancos enforcement file D-064-2022 (D-064-2022 status and documents); 2025 sustainability report, filed copy (Business Integrity, regulatory proceedings)

Mantoverde process-water releases

2025, disclosed June 2026 · issuer reported · medium materiality

Capstone reports two 2025 releases from the tailings facility downstream slope during construction, totaling one million litres of process water. It says they were reported, investigated and resolved with no permanent environmental impacts identified; independent incident records were not obtained.

Attribution: Role overlaps event; causation unproven. The company reports the incidents; no personal action or fault is established.

Relevance: Relevant to tailings and environmental oversight.

2025 sustainability report, filed copy (Tailings and Waste, 2025 site performance; Business Integrity incidents)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The full appointment and current role history, previous employment and credentials require additional corroboration.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — Vice President, Technical Services. Senior and corporate leadership (Corporate Leadership Team, Matthew Taylor)

Suitability for the current role

Role fit based on limited disclosed role

assessment at cutoff · analyst inference · medium materiality

The issuer lists Matthew Taylor as Vice President, Technical Services. The role is relevant to the company’s operations, but the page provides no detailed biography or independently established outcome.

Attribution: Responsibility not applicable. A role-based assessment is not proof of personal delivery.

Relevance: Role context only, with low evidence confidence.

Senior and corporate leadership (Corporate Leadership Team, Matthew Taylor)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The full appointment and current role history, previous employment and credentials require additional corroboration.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — Vice President, Financial Reporting & Tax. Senior and corporate leadership (Corporate Leadership Team, Brock Wlad)

Suitability for the current role

Role fit based on limited disclosed role

assessment at cutoff · analyst inference · medium materiality

The issuer lists Brock Wlad as Vice President, Financial Reporting & Tax. The role is relevant to the company’s operations, but the page provides no detailed biography or independently established outcome.

Attribution: Responsibility not applicable. A role-based assessment is not proof of personal delivery.

Relevance: Role context only, with low evidence confidence.

Senior and corporate leadership (Corporate Leadership Team, Brock Wlad)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The full appointment and current role history, previous employment and credentials require additional corroboration.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — Vice President, Concentrate & Metal Sales. Senior and corporate leadership (Corporate Leadership Team, Ashley Woodhouse)

Suitability for the current role

Role fit based on limited disclosed role

assessment at cutoff · analyst inference · medium materiality

The issuer lists Ashley Woodhouse as Vice President, Concentrate & Metal Sales. The role is relevant to the company’s operations, but the page provides no detailed biography or independently established outcome.

Attribution: Responsibility not applicable. A role-based assessment is not proof of personal delivery.

Relevance: Role context only, with low evidence confidence.

Senior and corporate leadership (Corporate Leadership Team, Ashley Woodhouse)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The full appointment and current role history, previous employment and credentials require additional corroboration.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• From 2025-10-27 through cutoff: Capstone Copper — General Manager, Pinto Valley. Third Quarter 2025 Results, Pinto Valley appointment (Management Additions, effective 27 October 2025)

Education and qualifications

Role history and reported qualifications

through October 2026 · issuer reported · medium materiality

Capstone appointed Scott general manager of Pinto Valley effective 27 October 2025 and reports previous senior leadership at Vale Canada, including head of Manitoba operations.

Attribution: Responsibility not applicable. Positions and education are reported by issuers; independent credential verification is incomplete.

Relevance: Relevant role history, with limits on dates and credential verification.

Third Quarter 2025 Results, Pinto Valley appointment (Management Additions)

Business failures and setbacks

Pinto Valley output and crusher maintenance

July–October 2026 · issuer reported · medium materiality

Capstone reported lower Pinto Valley Q3 2026 production due to unplanned July and August maintenance and a planned September shutdown. It said commissioning of the primary crusher began 21 October and found additional required repairs.

Attribution: Role overlaps event; causation unproven. Scott is the reported mine GM; no individual decision or cause has been established.

Relevance: Direct operating context for the Pinto Valley leadership role.

Third Quarter 2026 Results (Pinto Valley operating review); Third Quarter 2025 Results, Pinto Valley appointment (Management Additions)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The full appointment and current role history, previous employment and credentials require additional corroboration.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — General Manager, Mantoverde. Mantoverde history book launch (Oscar Flores, general manager)

Education and qualifications

Role history and reported qualifications

through October 2026 · issuer reported · medium materiality

Capstone says Flores joined as Mantoverde general manager on 15 January 2024 and reports previous roles with Kinross, AMSA, Anglo American, Codelco and New Gold. June 2026 reporting identifies him in the role.

Attribution: Responsibility not applicable. Positions and education are reported by issuers; independent credential verification is incomplete.

Relevance: Relevant role history, with limits on dates and credential verification.

Fourth Quarter 2023 Results (p. 6, Management and Board of Director Additions); Mantoverde history book launch (General manager quotation)

Contributions and company outcomes

Mantoverde commercial production and financial result

2024–2026 · issuer reported · medium materiality

Capstone announced commercial production at its Mantoverde Development Project on 21 September 2024, while noting its 2024 portfolio output was trending toward the low end of guidance and costs slightly above guidance. The October 2026 report said Q3 adjusted EBITDA rose, supported by higher realized metal prices.

Attribution: Role overlaps event; causation unproven. The milestones and financial outcome are company results and reflect multiple teams and commodity prices; no individual contribution is quantified.

Relevance: Relevant delivery context with financial and timing limits.

Mantoverde commercial production (commercial production and 2024 outlook); Third Quarter 2026 Results (Q3 2026 financial highlights)

Industrial safety

Four commuting deaths and company labour fine

June 2023–January 2025 · documented · high materiality

Four Mantoverde workers died in a June 2023 road crash while returning home. In January 2025 a Copiapó appeals court upheld a 60 UTM labour fine against Mantoverde for failure to enforce employee-transport safeguards. The court said the labour-fine dispute did not determine civil accident causation.

Attribution: Employer context; no individual link established. Flores joined as Mantoverde general manager on 15 January 2024, after the accident. The cited labour ruling concerns the employer; the reviewed sources do not establish his personal responsibility or civil causation.

Relevance: A material company safety matter, distinct from on-site fatality metrics.

Four Mantoverde employees die in journey crash (7 June 2023 accident report and company statement); Copiapó court upholds labour fine (22 January 2025 appellate decision summary); Fourth Quarter 2023 Results (p. 6, Management and Board of Director Additions)

Environmental record

Mantoverde process-water releases

2025, disclosed June 2026 · issuer reported · medium materiality

Capstone reports two 2025 releases from the tailings facility downstream slope during construction, totaling one million litres of process water. It says they were reported, investigated and resolved with no permanent environmental impacts identified; independent incident records were not obtained.

Attribution: Role overlaps event; causation unproven. The company reports the incidents; no personal action or fault is established.

Relevance: Relevant to tailings and environmental oversight.

2025 sustainability report, filed copy (Tailings and Waste, 2025 site performance; Business Integrity incidents)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The full appointment and current role history, previous employment and credentials require additional corroboration.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — Project Director, Santo Domingo. Santo Domingo project director conference biography (2025 agenda, Sergio Gaete biography)

Education and qualifications

Role history and reported qualifications

through October 2026 · issuer reported · medium materiality

Capstone reported Gaete joining in August 2023 as Mantos Blancos project director; a 2025 conference agenda identifies him as Santo Domingo project director and reports former Codelco and Esperanza roles. His current title and dates beyond this require confirmation.

Attribution: Responsibility not applicable. Positions and education are reported by issuers; independent credential verification is incomplete.

Relevance: Relevant role history, with limits on dates and credential verification.

Third Quarter 2023 Results (Management Additions); Santo Domingo project director conference biography (2025 agenda, Sergio Gaete biography)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• The full appointment and current role history, previous employment and credentials require additional corroboration.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.

• The June 2026 source could not be opened in the audit; current appointment beyond 2025 is not confirmed.

Career chronology

• Date not independently established; role reported in issuer source: Capstone Copper — General Manager, Cozamin. Cozamin general manager identified (Abel Gonzalez Vargas, Cozamin general manager)

Education and qualifications

Role history and reported qualifications

through October 2026 · issuer reported · medium materiality

August 2026 reporting identifies Gonzalez as Cozamin general manager; a mining industry association reports a metallurgy degree and an MBA and appointment to its presidency. Independent credential confirmation is incomplete.

Attribution: Responsibility not applicable. Positions and education are reported by issuers; independent credential verification is incomplete.

Relevance: Relevant role history, with limits on dates and credential verification.

Cozamin general manager identified (Cozamin general manager); Appointment to mining-cluster presidency (career and education)

Environmental record

Historic Chiripa soil remediation

2013–2024 · issuer reported · medium materiality

Under an agreement with Mexican authorities, Capstone says it is required to remediate the adjacent closed Chiripa mine site. Its 2024 sustainability report describes 30 hectares undergoing biological restoration and says the historic tailings remediation project was completed, with biological monitoring to follow. Independent regulatory closure was not established.

Attribution: Role overlaps event; causation unproven. The statement describes legacy contamination and company remediation responsibilities; it does not establish Gonzalez caused the original contamination or any personal violation.

Relevance: Environmental legacy and remediation relevant to Cozamin management.

2024 sustainability report (p. 66, Biodiversity, Cozamin/Chiripa)

Litigation and enforcement

Claimant reports a Cozamin royalty dispute and records request

2025–September 2026 · disputed · high materiality

The interested claimant Royalties Inc. says prosecutors sought mine records from Gonzalez as Capstone Gold’s legal representative in an investigation against another person. The account, original court and prosecutor records and Capstone’s response were not independently verified.

Attribution: Responsibility unresolved. The records-request account is made by an interested claimant; receiving a request does not establish wrongdoing or a charge against Gonzalez. Original court and prosecutor records were not obtained.

Relevance: Potentially material legal and reporting context for the mine and its manager.

Claimant account of records demand (25 September claimant statement, records request)

Evidence gaps

• Independent identity, career and credential verification remains incomplete.

• Targeted searches do not establish absence of adverse records or exhaust applicable court, regulatory and local-language sources.

• Independent regulator confirmation of final remediation closure and post-restoration monitoring was not located.

• Original Mexican judgments, prosecutor demand and Capstone response were not obtained; final federal decision and service remain unverified.

• The full appointment and current role history, previous employment and credentials require additional corroboration.

• The prior per-person topic search log could not be verified against retained execution records. Topic coverage and absence of adverse records are not established.