Capstone is committed to creating and preserving value for our stakeholders, including our employees and contractors, the local communities in which we operate in, and our shareholders; and adapting to changing conditions, including global climate change, cyclical industry trends and evolving political and social issues worldwide.

Our Terms of Reference for Board Oversight of Environmental, Social and Governance (ESG) ensures sufficient oversight of Capstone's ESG strategy, ESG risks that can affect Capstone’s long-term strategy and performance, and ESG disclosure to improve long-term value for our stakeholders.

Our Environment, Health, Safety and Sustainability (EHSS) Policy supports Capstone’s principles and values of safeguarding the health and safety of people, minimizing the impact of our activities on the ecosystem, respecting the conditions of the natural environment and communities in which we operate, while safeguarding Capstone’s assets.

Capstone’s Sustainability Pillars


We are committed to continuously improving our environmental performance and operating in compliance with applicable legislation as minimum requirements.

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We operate in regions with long traditions of mining and neighbouring communities that support mining. We proactively and openly work with local communities to identify...

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We are committed to investing in our people to develop a skilled and engaged workforce, not only for today, but for our future.

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We have a robust enterprise risk management oversight program from an engaged team at the Board and Senior Management level and throughout the organization.

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“Our approach to sustainability has long been guided by our Core Values, especially Work Responsibly and Always Accountable. Recently we have begun to ask ourselves if we can do more – Seeing Beyond our immediate responsibilities to further improve life for our people and communities, whether through technological innovations, safety improvements or new policies. We also shifted our language from sustainability to environment, social, and governance (ESG) issues to recognize the strong interests of our investors and stakeholders.”

Our Core Values

Work Responsibly

Safety is non-negotiable. It ensures the well-being of our people and our business.

  • Comply with all safety recommendations and requirements at head office and mine sites
  • Work with respect – for co-workers, the community and the environment
  • Remain aware and report potential safety hazards

Always Accountable

We take ownership for ourselves, and our work. We "do the right thing" for the business and our stakeholders.

  • Accept responsibility for work commitments
  • Meet deadlines and quality of work that was committed to
  • In making decisions, take the time to consider the long-term impact on the environment, our stakeholders and employees
  • Recognize, admit to and learn from errors

Execute with Excellence

We measure our performance and strive to excel at every level.

  • Continually look for ways to improve processes
  • Utilize the resources and tools available within the business
  • Pay attention to detail
  • Keep up-to-date with industry improvements

Deliver Results

We make decisions and are responsible for outcomes. We work openly and effectively with each other, leveraging the strength of the team.

  • Think through decisions clearly and logically
  • Treat others with respect
  • When working as a team, trust in co-workers’ abilities
  • Provide clear and timely results

Capstone is a responsible corporate citizen and contributes to the development of responsible mining practices in our industry through our membership and participation in associations that elevate industry standards, develop and share best practices, and keep us up to date on regulatory requirements.
We also support community organizations and initiatives to improve the development and wellbeing of the communities where we operate.
At the corporate level, in 2020 Capstone was a member of the European Copper Institute.

Our operations also support the following trade associations and civic service organizations:

Pinto Valley Mine Image Pinto Valley
Trade Groups
  • Member of CAMIMEX (Mexico Mining Chamber)
  • Member of the HR Committee of CAMIMEX
  • Member of CANACINTRA (National Chamber of the Transformation Industry)
  • Member of CANCHAM (Canada Chamber of Commerce in Mexico)
  • Member of CONCAMIN (Confederation of Industrial Chambers of the United Mexican States)
  • Member of the Mexican Association of Mining Engineers and Metallurgists
Civic Groups
  • Member of CEMEFI (Mexican Centre for Philanthropy)
  • Member and co-participant in the Cooperation Agreement with the UAZ (Autonomous University of Zacatecas)
  • Member and co-participant in the Cooperation Agreement with UTZAC (Technology University of the State of Zacatecas)
Cozamin Mine Image Cozamin
Trade Groups
  • Member of the Arizona Mining Association – Board seat
  • Member of the Arizona or US? SME (Society for Mining, Metallurgy & Exploration) – Secretary/Treasurer
  • Member of AEMA (American Exploration & Mining Association – Board seat
  • Member of the Mining Foundation of the Southwest
  • Member of AMIGOS (Arizona Mining Industry Gets Our Support
Civic Groups
  • Member of United Fund – Board seat
  • Member of the Globe Unified School District – Board seat
  • Member of the Bullion Plaza Cultural Center & Museum – Board seat
  • Member of the Globe-Miami Chamber of Commerce
  • Member of the Cobre Valley Watershed Partnership
  • Member of the Cobre Beautification Committee
  • Co-organizer of the Globe Trash Mobsters
Workers Image

COVID-19 Response

The COVID-19 pandemic is a global health and safety crisis affecting Capstone’s operations, our workforce, local communities and the regions where we operate.

Apart from a four-week national shutdown of all non-essential public and private sector activities in Mexico during April 2020, our mines have continued operating throughout the pandemic. (Mining was designated as an essential service in Arizona and Mexico.) We are thankful that we have not experienced any significant outbreaks up to the release of this report.

We implemented COVID-19 protocols to protect the health and safety of our workforce and local communities. We continue to assess the potential health and business impacts across our operations along with evolving guidance from government authorities, the Centers for Disease Control and Prevention, and the World Health Organization.

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Our practices to limit COVID-19 exposure and transmission include:

  • Across all sites and offices, those who do not need to be onsite to support copper production may work from home.
  • Employees who are diagnosed with COVID-19 or required to self-isolate as a precaution receive paid sick leave in line with local employment regulations.
  • Employees who have been absent from work with flu-like symptoms undergo medical checks.
  • Pre-shift meetings take place outdoors to maximize physical distance.
  • Truck cabs and working surfaces are sanitized.
  • Personal protective equipment standards have been updated to include face masks, which we provide to all employees.
  • We provide information about COVID-19 preventative measures that employees can take home and use to keep themselves and their families safe and healthy outside of work.
Food Hampers Image Cozamin COVID Image

At Cozamin, we offered an additional health program for any employees who were more vulnerable due to underlying health conditions. More than 50 employees continued to be paid even while they could not work. They also received support on health issues such as diabetes, as well as help in safely returning to work.

We also supported the health and safety of our local communities:

  • Pinto Valley donated N95 masks to medical and public sector workers and made a $100,000 contribution to the United Fund of Globe-Miami. An employee contribution was matched by the company for an additional $8,200.
  • Cozamin signed a Collaboration Agreement with the Municipal President of Zacatecas. Through this partnership, Cozamin provided food, cleaning and sanitizing products, scholarships, masks, monetary donations and purchased hospital beds for the state government to support response efforts in the state of Zacatecas. Based on input from our employees, we identified additional needs in community services such as shelters, orphanages and homes for seniors, and supported them with monetary donations or food baskets.
  • Santo Domingo donated food boxes to local communities.
  • Corporate office employees donated to the local foodbank. Capstone provided a matching donation.
  • We conducted an anonymous pulse survey at Pinto Valley, Santo Domingo and the corporate office to measure employee perceptions of Capstone’s engagement and support through the pandemic. We learned that overall employees were satisfied with our response to the pandemic and level of communication and support.