Page 18 - 2018 Sustainability Report

OUR COMMITMENT STATEMENT

Martin Marietta is committed to operating in an environmentally responsible manner and reporting the ways in which
we accomplish this objective. It is our policy to continually meet and increasingly exceed compliance with U.S. federal
and state environmental laws and regulations, which are generally more strict as to pollutants and testing regimes for
emissions than Europe or other parts of the world. In addition, we place primary responsibility for compliance with
our operations management and view it as an important part of our ongoing strategy. Our confidential ethics hotline
is available for reporting of suspected environmental issues that do not appear to be addressed by local management.

All aspects of our sustainability approach, including requirements. We consistently invest in new or upgraded
environmental stewardship, are an integral part of equipment that keeps us in compliance and propels us to
Martin Marietta’s annual planning process and day-to- outperform in building value.
day business. Various aspects of our business are highly
regulated. Minimally, we adhere to all governmental To achieve our environmental goals, we have a full-time
regulations and requirements related to safety, land use, staff of environmental engineers and managers who
air emissions, water discharge, waste management, noise are educated, experienced and expert in environmental
and dust control, and other environmental matters, to compliance and sustainability. As we have responsibly
safely and sustainably manage our business and pursue our grown our business, we have maintained this focus,
economic objectives. Moreover, our aim is to exceed these prioritizing stewardship and compliance during integration.

500 Operating Sites
450 Number of Notice
400 of Violations
350
300 This chart demonstrates the growth
250 in the number of our operating sites
200 since 2010 with little change in the
150 number of violations we have received
100 relative to environmental matters. We
50 are proud of this performance and view
0 it as evidence of our relentless focus on
stewardship and compliance.
2010 2011 2012 2013 2014 2015 2016 2017 2018

Martin Marietta’s corporate stewardship programs focus on the following material issues and are guided by a combination
of industry best practices, innovative operational improvements and the adoption of clean technologies.
ENVIRONMENTAL

STEWARDSHIP GREENHOUSE GAS EMISSIONS in the mobile fleet of both the aggregates and targeted

Martin Marietta is an aggregates-led company. This is
a notable and significant differentiator between our downstream businesses. We have also invested capital to
business and those of our international competitors. As right-size our operations, which can result in an operation
We are committed to continuously improving our business and conserving a result, we have a relatively low emissions profile. In our using fewer pieces of equipment and, for the aggregates
natural resources to maximize our contributions to society while minimizing aggregates product line, we consume diesel fuel in our business, shorter haul distances from the mine to the
our environmental impact. We continue to embed sustainable processes quarry operations; diesel fuel represents the primary source crushing plant.
and behaviors throughout our company. of Scope 1 emissions. We also have targeted downstream
operations, namely, ready mixed concrete, asphalt and We also have a strategic cement business, consisting of
paving services, that have similar mobile combustion only two plants – both in Texas and regulated under federal
sources, including off-road and on-road equipment, which and state laws, including the Clean Air Act. We recognize
are the primary source of our Scope 1 emissions from these the emissions profile of the cement business is greater than
businesses. We have made significant capital investments our aggregates and targeted downstream businesses.

18 / MARTIN MARIETTA / SUSTAINABILITY REPORT / 2018 19 / MARTIN MARIETTA / SUSTAINABILITY REPORT / 2018