Page 7 - Proxy Statement - 2020

Our Commitment to our Guardian Angel Safety Culture

✓ World-class LTIR for the 3 consecutive year
rd
✓ Safety performance sets the foundation for long-term financial strength and successful strategic plan (SOAR) execution

99.8% 98.6% 74
Of employees experienced ZERO lost time Of employees experienced ZERO incidents Business Units with 500,000+ hours of work
incidents in 2019 in 2019 and ZERO lost time injuries

“ZERO IS POSSIBLE”

World-Class Safety + Record Financial Performance

✓ We outperformed our peers in 2019, and also outperformed the S&P 500 and S&P 500 Materials on TSR
✓ Our short- and long-term performance, reflected in our TSR over the 1-, 5- and 10-year periods ended December 31, 2019, show
the strength of our strategic plan.
✓ Our shareholders received a total return of 64% over the 1-year period.

64%
31% 25%
1 YEAR TSR
Martin S&P 500 S&P 500 Materials
Marietta

165%
74% 41%
5 YEAR TSR
Martin S&P 500 S&P 500 Materials
Marietta
258%
257%
140%
10 YEAR TSR
Martin S&P 500 Materials
Marietta S&P 500
339%
SINCE VOLUME 247% 181%
PEAK
(12/31/05)
Martin S&P 500 S&P 500 Materials
Marietta

2020 PROXY STATEMENT 3