Page 56 - Martin Marietta - 2023 Proxy Statement

SUMMARY OF OUR COMPENSATION CONSIDERATIONS /

Safety

2022 was another year of world-class safety performance which strengthens our belief that Zero is Possible. This means
operating our business without any safety incidents. Our goal is zero. We look to world-class companies and safety
incident rates for guidance as to how we achieve this. We continued to make significant progress in 2022 towards this
important goal, driven by extraordinary employee focus and increased engagement.

While all awards are meaningful, it is particularly satisfying when we are recognized for achievement of one of our core
values. Consistent with previous years, several of our facilities were recognized by the National Stone, Sand and Gravel
Association (NSSGA) as Safety Excellence Award winners in 2022. These awards recognize operations that have gone the
longest duration without a reportable incident in their size category, based on data provided by the U.S. Department of
Labor’s Mine Safety and Health Administration. In 2022, our Benson Quarry in North Carolina won gold-level honors, our
Onslow Quarry in North Carolina earned silver-level honors, and our San Pedro Quarry in Texas earned bronze-level
honors. As an enterprise, Martin Marietta received bronze-level honors in the large company category by the NSSGA in its
Louis Greisemer Sterling Safety Awards.

Additionally, three Martin Marietta sites earned Sentinels of Safety Awards from the National Mining Association in 2022.
This award is the oldest and most esteemed honor in the mining industry, recognizing mining teams that record the most hours
in a calendar year without a single lost-time injury. The National Ready Mixed Concrete Association (NRMCA) recognized 43
Martin Marietta ready-mixed concrete plants for gold-level Excellence in Safety achievement in 2022, and the Portland Cement
Association presented its Chairman’s Safety Award to Martin Marietta’s Hunter, Texas Cement Plant.

We achieved our sixth consecutive year of world-class Lost-Time Incident Rate (LTIR)
performance and our second year of world-class Total Incident Injury Rate (TIIR)
performance

Sixth Year of World-Class LTIR Performance Second Year of World-Class TIIR Results

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
Note: Safety data as of 12/31/22. LTIR per 200,000 hours worked. World-class levels based on general industries.

For Martin Marietta, safety performance sets our foundation for long-term financial strength and successful
SOAR execution. Simply said, a safe operation is a profitable one.

50 2023 PROXY STATEMENT