Page 12 - 2023 Sustainability Report

COMPANY OVERVIEW

In matters of sustainability, the Chair and CEO, as well as the executive leadership team, guides and governs corporate-
wide sustainability objectives and initiatives. From there, our dedicated employees help drive performance of our
sustainability agenda, including:

• Chief Ethics Officer
• Head of Sustainability
• Safety teams
• Environmental managers
• Inclusion and Engagement Task Force

• Head of Inclusion and Engagement
Our employees understand the importance of acting with integrity in all of their interactions. We provide them with a
variety of resources to guide them in their daily decision-making and support them should they have questions, including
training and compliance policies and education. These resources include an engaged senior leadership team, our Code of
Ethical Business Conduct, a confidential ethics hotline managed by an independent third party, and annual ethics training.

Our Code of Ethical Business Conduct
BOARD OF DIRECTORS
As a Company dedicated to fulfilling its mission and living its values,
we understand how important it is to provide resources that help
guide our hardworking Martin Marietta team members in the
countless decisions they make every day. Our Code of Ethical
Business Conduct, which has been in place (with many revisions)
NOMINATING AND CORPORATE GOVERNANCE COMMITTEE
since the 1980’s, was again updated in 2023. This code provides
Corporate Governance
our policies and expectations on a number of topics, including our MANAGEMENT AND EMPLOYEES
Guidelines
commitment to good citizenship, promoting a positive and safe ETHICS, ENVIRONMENT, SAFETY AND HEALTH COMMITTEE
Code of Ethical
work environment, avoiding conflicts of interest and operating with Business Conduct
integrity in all that we do. The Code of Ethical Business Conduct Confidential Ethics Hotline
applies to everyone on the Martin Marietta team, including Board Annual Ethics Training
members, and annual ethics training is required to ensure our
policies are communicated and understood. The Code also applies
to our vendors, suppliers and contractors and sets out our
expectations both in terms of how they behave with regard
to their interactions with our Company and employees, as
well as in their own businesses. It addresses topics such as
Anti-Corruption, Bribery, Antitrust, Safety and Health,
Environmental Regulation, Slavery and Human Trafficking,
Sustainability, Securities Law and Insider Trading, Respect in
the Workplace and Political Contributions and Lobbying.

The Company has policies and procedures designed to deter non-compliance and reduce exposure to unethical conduct,
including use of our conflicts of interest policy and our third-party ethics hotline. The Company also conducts ethical risk
assessments of its existing business, as well as in connection with acquisitions and other business formation activities.

10 2023 SUSTAINABILITY REPORT