Page 2 - Proxy Statement - 2020

April 16, 2020

Dear Fellow Shareholder:

On behalf of the Martin Marietta Board of Directors and executive officers, you are cordially invited to
attend Martin Marietta’s 2020 Annual Meeting of Shareholders. I am providing some of the highlights of
our key actions and important decisions in 2019, as well as information about our financial performance.
Please review this Proxy Statement and the 2019 Annual Report for more information about these topics.
As we issue this Proxy Statement, COVID-19 continues to create challenges and hardships, both nationally
and globally. While we remain open for business and ready to meet our communities’ product and service
needs, we are also committed to safeguarding the health, safety and well-being of all who our business
touches. The Company’s executive leadership and Board of Directors have been closely monitoring
developments related to COVID-19 and its potential impacts to our employees, customers, supply chains,
and others, and proactively taking actions to responsibly prepare so that our people, facilities and business
remain safe.
Continued to Deliver Strong Financial Results
2019 was another outstanding year of achievement at Martin Marietta. We delivered top-line revenue growth
and translated that growth into record profitability. We outperformed our peers, the S&P 500 and the S&P 500
Materials indices over the 1-, 5- and 10-year periods ended December 31, 2019. Our shareholders saw a total
return of 64% over the 1-year period. We increased our quarterly dividend 15% in August 2019, following a
9% increase in August 2018, and have returned $1.6 billion to shareholders from dividends and share
repurchases since announcing a 20 million share repurchase authorization in February 2015.
Shareholder Engagement, Enhanced Corporate Governance and Refreshed Board Membership
We remained engaged with shareholders and other key stakeholders during 2019. In response to
valuable feedback from shareholders, we enhanced our disclosure regarding our activities, risks and
opportunities regarding sustainability and other environmental, social and governance issues. Our
investor outreach in 2019 extended to 82 meetings with 189 investor groups, and conversations with
most of our top 30 shareholders. We visited with our shareholders across the United States and
Canada, the United Kingdom, Sweden, Belgium, the Netherlands, and France.

Over the past four years, we have added six new independent directors. Most recently, Thomas H. Pike joined the Board in July 2019
and Dorothy M. Ables joined our Board in November 2018. In addition, we are nominating David C. Wajsgras to serve on our Board.
We are committed to recruiting experienced directors who offer diverse perspectives, professional expertise, and unique skills that align
with our long-term corporate strategy and business needs.

We are deeply grateful to Stephen P. Zelnak, Jr., who will retire from the Board at the 2020 Annual Meeting. Steve has served on our
Board since November 1993, including as Chairman, and has made valuable contributions to both the Board and the Company from his
previous service as CEO of Martin Marietta. Steve has been an important, thoughtful and knowledgeable voice. We will miss him.
World-Class Safety Performance
In 2019, we continued our impressive safety performance. Through the hard work and focus of our employees, safety awareness has been elevated
across the Company. Our employees know world-class safety performance is possible; and, importantly, 2019’s results demonstrate this goal is
attainable. Our company-wide Lost Time Incident Rate (LTIR) was 0.20, a world-class LTIR for the third year in a row.
Sustainability
We annually issue our Sustainability Report to share our story, and to provide information that we believe is responsive to requests from
our shareholders and other stakeholders, on the efforts and advancements we are making in these important areas. Since our first
report in 2015, we have enhanced our reporting with more comprehensive descriptions of our outstanding safety and regulatory
programs and performance, targeted and intentional support of education and health, and strong community involvement. In our latest
Sustainability Report, to be issued in April 2020, we have included additional disclosure about our activities, accomplishments and
opportunities associated with key sustainability matters, including those related to the environment. This includes new disclosures of our
direct greenhouse gas emissions across all our business lines, as well as our emissions reductions targets for 2030. Our activities reflect
that these matters continue to be part of our core approach and strategy that brings value to our shareholders and other stakeholders.
Your Vote Matters
I urge you to cast your vote promptly—even if you plan to attend the Annual Meeting. We encourage you to vote so that your shares
will be represented at the meeting.
Thank you for your investment in Martin Marietta. We look forward to continuing to deliver strong and responsible performance,
innovation, and growth to our customers, our shareholders and our other stakeholders.
Sincerely,

C. Howard Nye
Chairman of the Board, President and Chief Executive Officer