Page 20 - 2020 Sustainability Report

SAFE OPERATIONS

World-Class Safety Performance

Given the nature and physical demands of our quarrying activities,
operating our business safely is at the core of our long-term success
and our ability to continue delivering value. We believe our
employees are our most valuable asset and, in 2020, we continued
our impressive safety performance.

“In 2020, our lost-time incident rate was
0.15, meaning 99.8 percent of our ~8,600

employees experienced zero lost-time
incidents, a world-class level for the

fourth straight year.”

And our 2020 performance is the best safety record in Martin Marietta’s history, despite nearly continuous operations as
an “essential business” during the COVID-19 pandemic, with Company-wide lost time and total injury incidents near or
exceeding world-class levels. In 2020, our lost-time incident rate was 0.15, meaning 99.8 percent of our ~8,600
employees experienced zero lost-time incidents, achieving a world-class level for the fourth 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

0.93
0.24
World-Class
Safety Level
World-Class (0.90)
0.15 Safety Level
(0.20)

2010 2015 2020 2010 2015 2020
*LTIR and TIIR are per 200,000 man 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 0.93, slightly above the • 99.8% of employees worked with ZERO lost-time incidents in
world-class rate of 0.90 2020
• East, Southwest and Magnesia Specialties Divisions exceeded • 98.9% of employees worked with ZERO incidents in 2020
world-class Total Injury Incident Rate (TIIR) with TIIRs of 0.60, • 79 business units finished 2020 with ZERO lost-time incidents
0.82 and 0.81, respectively
during 500,000+ consecutive hours of work
• World-class LTIR for the 4th consecutive year
• Safety performance sets the foundation for long-term financial
strength and successful SOAR execution

18 2020 SUSTAINABILITY REPORT