Page 3 - 2022 Sustainability Report

CEO Letter

A Message from Our CEO

Building on a Sustainable Foundation

As a leading supplier of aggregates and heavy building materials, Martin Marietta knows how to build on a sustainable
foundation for future growth. The successful implementation of our strategy was evident in our 2022 results. We marked
our Company’s eleventh consecutive year delivering increased products and services revenues, gross profit and Adjusted
EBITDA, as well as our most profitable year ever. We achieved record financial results and world-class safety incidence
rates while also seamlessly integrating a large platform acquisition and completing non-core asset divestitures against a
backdrop of rapid monetary tightening, a resulting housing slowdown, and cost inflation at 40-year highs. We view
sustainability as foundational to these and all of our other accomplishments allowing us to create a better world for our
9,400 team members, their families, the communities in which we operate and our stakeholders.

Sustainability is a core value at Martin Marietta, as well as a driver for continuous improvement and a key element of
delivering greater long-term value to our stakeholders. This commitment is shared throughout our enterprise – from our
Board of Directors to our managers to our employees – and is integral to each of our businesses and their day-to-day
operations. As part of our commitment to sustainability and acting in an environmentally responsible manner, we
recognize the global threat posed by climate change and the need for a global and ambitious response. In this
Sustainability Report, we are excited to announce bold new aims across our entire value chain:
• We are adopting a Net Zero by 2050 ambition for our Scope 1 emissions (direct emissions from our operations) across
all our product lines.
• We are committed to reducing or offsetting Scope 2 emissions (indirect emissions from our energy purchases) to
achieve Net Zero Scope 2 emissions by 2050 across all our product lines.

In addition, we will continue to consider new opportunities to expand the coverage of our existing Scope 1 and 2
reduction targets for 2030 and continue to evaluate a process for undertaking the measurement of our Scope 3
emissions. The road to Net Zero for us and others in our industry requires operational changes, investments in sustainable
energy and, in some cases, technology that is not yet available. We also continue to monitor various pilot projects being
conducted relating to the development of carbon capture technology and will implement viable solutions in those
portions of our business where it would be most impactful.

We recognize the importance of building a resilient and sustainable company; our management’s engagement and the
Board of Director’s oversight of our sustainability efforts are focused on transparency, responsiveness and vision. This
oversight starts with our Board of Directors, extends to our Board Committees which includes an Ethics, Environment,
Safety and Health Committee, among others, and further encompasses our executive team who are responsible for the
day-to-day management of these issues and our employees who implement our strategies.

In 2022, we continued our relentless focus on world-class safety performance, delivering a company-wide Total Injury
Incident Rate (TIIR) of 0.78, exceeding the world-class rate of 0.90 for the second consecutive year. Moreover, our fidelity
to our Guardian Angel culture meant that 99.8% of our employees experienced ZERO lost-time incidents. Our safety
performance sets the foundation for our long-term financial strength and the successful execution of our Strategic
Operating Analysis and Review (SOAR) 2025 initiatives.

MARTIN MARIETTA 1