Page 12 - 2022 Sustainability Report

COMPANY OVERVIEW

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 since the 1980s, is NOMINATING AND CORPORATE GOVERNANCE COMMITTEE
regularly updated. This code provides our policies and expectations MANAGEMENT AND EMPLOYEES
Corporate Governance
Guidelines
on a number of topics, including our commitment to good ETHICS, ENVIRONMENT, SAFETY AND HEALTH COMMITTEE
citizenship, promoting a positive and safe work environment, Code of Ethical
Business Conduct
avoiding conflicts of interest and operating with integrity in all that
Confidential Ethics Hotline
we do. The Code of Ethical Business Conduct applies to everyone on
the Martin Marietta team, including Board members, and annual Annual Ethics Training
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, and Slavery and Human Trafficking.

Board With Diverse Skills and Experience

1 only 1 director is 45% of directors
are women
management; all other
or minorities
directors are independent

66 average 3 3 of our 11
directors are
women

YEARS director age 3 of our 11 directors are
3 racially and ethnically
diverse — 2 Board
members are African
American and 1 is Hispanic

8.5 average 45% of directors are current
or former public
Company CEOs

YEARS director tenure

10 2022 SUSTAINABILITY REPORT