Page 41 - 2023 Sustainability Report

SAFE OPERATIONS

World-Class Safety Performance

Given the nature and physical demands of our building materials
production activities, operating our business safely is at the core of
our long-term success and our ability to continue delivering value.
We know our employees are our most valuable asset, and, in 2023,
we continued our impressive safety performance.

“In 2023, our lost-time incident rate was

further reduced to 0.13, meaning 99.9
percent of our ~9,400 employees

experienced zero lost-time incidents, a
world-class level for the seventh straight
year.”

Our 2023 performance is the again one of best safety records in Martin Marietta’s history, with company-wide lost time and
total injury incidents exceeding world-class levels. In 2023, our total injury incident rate (TIIR) of 0.78, exceeded the world-
class rate of 0.90 for the third year in a row, inclusive of acquired operations. Also, our lost-time incident rate was
further reduced to 0.13, meaning 99.9 percent of our ~9,400 employees experienced zero lost-time incidents, achieving a
world-class level for the seventh straight year. We believe that we are on the right track to realizing our goal of zero
incidents and our Guardian Angel safety culture is a key part of our ongoing efforts to keep our employees safe.
Achieving World-Class Safety

Lost-Time Incident Rate (LTIR) Total Injury Incident Rate (TIIR)

0.39
1.34
1.26

0.24 0.84
0.78 0.78
World-Class
Safety Level
0.17 World-Class (0.90)
0.15 Safety Level
0.13
(0.20)
2010 2015 2021 2022 2023 2010 2015 2021 2022 2023
*LTIR and TIIR are per 200,000 people hours worked. World-class levels determined by external benchmarking against companies inside and outside the
aggregates industry.
Safety Highlights

• Tied for safest year on record, with TIIR of 0.78, below the world- • Established a Safety Executive Steering Committee
class rate of 0.90 for the third consecutive year in the Company’s • Established a Safety Task Force
history
• 99.9% of employees worked with ZERO lost-time incidents in 2023
• Southwest and East Divisions exceeded world-class Total Injury
Incident Rate (TIIR) with TIIRs of 0.63 and 0.69, respectively • 99.1% of employees worked with ZERO incidents in 2023
• World-class LTIR for the 7th consecutive year • 84 business units finished 2023 with ZERO lost-time incidents
during 500,000+ consecutive hours of work
• Safety performance sets the foundation for long-term financial
strength and successful SOAR execution • 23 Business units achieved new safety milestones during the year.

MARTIN MARIETTA 39