Governance

summit materials office logo on wall

Responsible leadership for a sustainable and prosperous future

Our governance structure follows best-practice standards to align our business with stakeholder interests and drive long-term value for Summit. The Board provides oversight on key social responsibility initiatives, including human capital, environmental policies, energy management, land use, climate action, and sustainability.

Our Board of Directors

Summit’s Board of Directors is composed of industry leaders and visionaries committed to our core principles and advancing sustainability initiatives.

We are proud that over 56% of our board members and more than 60% of our executive officers—including our CEO—are female, reflecting our commitment to diverse leadership and inclusive growth.

To ensure sound judgment and effective oversight of management practices, 8 of our 9 directors are independent, as defined by NYSE governance rules and our Corporate Governance Guidelines. This independence helps protect and create value for all our stakeholders.

In shaping board and committee composition, we consider a range of factors, including diversity of background, technical skills, age, and career experience. Our current directors bring a robust mix of expertise in operations, finance, materials, technology, supply chain, and investor relations. For more details on our Board of Directors, please see our Annual Report.

LEADERSHIP THAT EXTENDS TO THE LOCAL LEVEL

Our senior leadership team is accountable for ensuring that Summit meets its ESG priorities. Strategy and progress toward our ESG goals are discussed regularly at management meetings and are key topics at strategic sessions.

Our ESG Senior Management Team in 2023 was composed of

  • Executive Vice President, Chief
    People, Environmental, Social and Governance Officer and Head of Communications
  • Environmental, Social Governance Director

Governance Documents

The following documents provide additional information on Summit’s board governance and corporate governance:

Download Adobe Acrobat

With regards to reporting, Summit’s Audit Committee is responsible for oversight of our environmental, social and governance (ESG) reporting and disclosures (quantitative and qualitative) and related processes and controls, including conformity to Summit’s overall ESG strategy.

Oversight of Climate Change Risks and Mitigation Strategies

Sustainability is a core value at Summit, and we are deeply committed to our responsibilities to the lands and communities where we operate. Our management team actively oversees climate-related risks, focusing on safety, sustainability, finance, internal audits, and legal considerations. Additionally, each of our operations includes dedicated personnel responsible for ensuring compliance with environmental regulations.

Summit recognizes that strong environmental, social, and governance (ESG) performance is essential for long-term success and is a priority for our stakeholders. To support this, we have implemented an oversight structure that ensures thorough monitoring of ESG performance and risk management.

Summit has established a company-wide Environmental Management System (EMS), called eVue, to facilitate ongoing compliance with environmental rules and regulations.

Our Chief Environmental Health, Safety, and Governance Officer and Head of Investor Relations (EVP, ESG & IR) collaborates with operational leaders to identify climate risks and implement mitigation strategies focused on emissions reduction, environmental health and safety, sustainability, and corporate social responsibility. Our senior leadership team also provides oversight on land use and social impact initiatives.

Risk Management

Summit’s Enterprise Risk Committee (ERC) is dedicated to identifying and evaluating environmental and other risks, including compliance with environmental regulations. The ERC conducts regular, structured reviews of environmental risks and collaborates with key leaders across our operations to address them. Risk liaisons at operating sites and within Centers of Excellence—focused on commercial practices, processes, and capabilities—play a critical role in identifying, reporting, and mitigating risks for the ERC.

Business Ethics and Transparency

Summit’s Code of Business Conduct and Ethics applies to all of its officers, directors and employees and is posted here. The code of ethics addresses avoidance of conflicts of interest, protection of confidential information, compliance with applicable laws, rules and regulations, and adherence to good disclosure practices, among other items. The policy is a ‘‘code of ethics’’ as defined in Item 406(b) of Regulation S-K.

Our Governance and Sustainability Committee

We understand that strong environmental, social, and governance (ESG) performance is crucial for Summit’s long-term success and valued by our stakeholders. To support this, we established a Governance and Sustainability Committee responsible for overseeing our sustainability initiatives. This structure reinforces our commitment to integrating sustainable, responsible practices across all areas of our business. The committee’s charter includes the below:

Committee Charter

Social Responsibility

Ensuring our approach to social responsibility aligns with Summit’s overall business strategy.

External Developments

Monitoring and reviewing external developments that may impact Summit’s ability to operate responsibly.

Policies and Initiatives

Overseeing policies and initiatives related to environmental stewardship, including energy management, climate change, and sustainability.

Political Contributions

Reviewing policies on political contributions and lobbying.

Recommendations

Recommending corporate governance principles for inclusion in our Corporate Governance Guidelines and tracking governance developments.

Annual Reports

Providing annual reports to the Board of Directors on these initiatives.

large wheel loader loading dirt

Although Summit Materials, Inc. (“Summit,” or “Company”) believes that the
assumptions inherent in these forward-looking statements are reasonable, the reader
should not place undue reliance on these statements. Forward looking information is
prepared as of April 2, 2024. Please see our “Risk Factors” in Summit’s Annual Report
on Form 10-K as filed with the Securities and Exchange Commission and our
subsequent filings.