Page 35 - 2022 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 2022,
we continued our impressive safety performance.

“In 2022, our lost-time incident rate was
further reduced to 0.15, meaning 99.8

percent of our ~9,400 employees
experienced zero lost-time incidents, a

world-class level for the sixth straight year.”

Our 2022 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 2022, our total injury incident rate (TIIR) of 0.78, exceeded the world-
class rate of 0.90 for the second year in a row, inclusive of acquired operations. Also, our lost-time incident rate was
further reduced to 0.15, meaning 99.8 percent of our ~9,400 employees experienced zero lost-time incidents, achieving a
world-class level for the sixth 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
World-Class
Safety Level
0.17 World-Class (0.90)
0.15 Safety Level
(0.20)

2010 2015 2021 2022 2010 2015 2021 2022
*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

• Safest year on record, with TIIR of 0.78, below the world-class • 99.8% of employees worked with ZERO lost-time incidents in
rate of 0.90 for the second consecutive in the Company’s history 2022
• Southwest, East and Central Divisions exceeded world-class • 99.1% of employees worked with ZERO incidents in 2022
Total Injury Incident Rate (TIIR) with TIIRs of 0.40, 0.84 and • 81 business units finished 2022 with ZERO lost-time incidents
0.75, respectively
during 500,000+ consecutive hours of work
• World-class LTIR for the 6th consecutive year
• 32 Business units achieved new safety milestones during the
• Safety performance sets the foundation for long-term financial year.
strength and successful SOAR execution

MARTIN MARIETTA 33