Page 4 - 2022 Sustainability Report

CEO Letter

0.28 1.32
World Class 1.09 1.14 1.18
0.20 0.20 0.17 Safety Level 0.93 0.84 0.78 World Class
0.15 0.15 0.15 Safety Level
(0.20)
(0.90)

2016 2017 2018 2019 2020 2021 2022 2016 2017 2018 2019 2020 2021 2022

In order to build a better company, we must build teams of diverse people all working toward the same goal. I have
signed the CEO Pledge for Diversity & Inclusion supporting a trusting environment where all ideas are welcomed and
employees feel comfortable and empowered to have discussions about diversity and inclusion. We launched a dedicated
section on our Company’s website highlighting Inclusion, Engagement and Diversity at Martin Marietta and elevated the
Head of Inclusion and Engagement to a Vice President level position. The Head of Inclusion and Engagement implements
programs, training and advances a culture in furtherance of development, retention and engagement of our employees.
We also formed an Inclusion and Engagement (I&E) Task Force, which consists of a diverse group of employees, with a
mission to ensure our culture is consistently welcoming to all current and future employees, as well as open to new and
diverse thought. We have also prioritized our ONE employee brand, which we use to promote our culture, employee
experience and employee development. Most recently, we have begun launching Employee Resource Groups, including
our Veterans Community, our Women Who Build Community and our Multi-Cultural Community. We believe these
efforts, while part of our journey, are important and effective steps to further broaden and diversify our talent.

Our senior management team and I engage personally and continuously with our stakeholders to listen carefully and
share thoughts regarding sustainability and other ESG considerations; the important feedback we receive on these issues
helps inform our policies, practices and disclosures. We believe the steps we have taken to date, and those we will
continue to take in the future, make us a leader in the aggregates sector. We are proud to present you with our 2022
Sustainability Report and look forward to continuing to report our commitment, shared purpose and strategy to building
a more sustainable world.

Sincerely,

C. Howard Nye
Chairman, President and
Chief Executive Officer

2 2022 SUSTAINABILITY REPORT