Page 4 - Martin Marietta - 2025 Proxy Statement

geographic diversification; and (iv) reducing greenhouse gas impacts – all while maintaining a strong balance sheet well-
positioned for further acquisitive growth.

We are pleased to have added nearly one billion tons of aggregates reserves to our footprint in 2024. We completed the
acquisition and integration of both Blue Water Industries (BWI Southeast) and Albert Frei & Sons Inc. last year. In October
2024, we added a limestone source on Florida’s Gulf coast and sand and gravel in southern California and sand and gravel
in west Texas in December 2024. All of these aggregates bolt-on acquisitions are in attractive, SOAR-identified
geographies.

Through purposeful portfolio evolution and curation, we thoughtfully cultivate acquisitions and selectively prune assets at
opportune times. Our active portfolio management helps maximize the value of our business for our shareholders.

Continued Commitment to Shareholder Engagement and Responsiveness
Understanding and considering the views of our shareholders is a core value for us. Thoughtful engagement provides us
insight into what our shareholders care about and allows us to endeavor to include topics in our Sustainability Report and
other public documents about which our shareholders ask. In 2024, we continued our Fall Engagement Program, reaching
out to over 50 of our top shareholders, representing approximately 75% of outstanding shares, to discuss topics including
our safety, financial and operating performance as well as our progress on establishing and achieving greenhouse gas
(GHG) emissions targets. The shareholder feedback we received precipitated a number of our 2024 actions, among them
continuing to:
• Monitor, review and respond to sustainability indices and surveys, including CDP, Sustainalytics, and the SBTi, among
others.

• Gather Scope 3 emissions data for purposes of evaluating those emissions against SBTI’s target threshold in accordance
with SBTi procedures.
• Provide sustainability disclosures in our annual Sustainability Report and on our website including disclosures around
political contributions. In October 2024, we were recognized as a Trendsetter Company in the 2024 CPA-Zicklin Index,
meaning Martin Marietta earned a score of 90 percent or higher with respect to the strength of our political spending
disclosure practices and oversight policies.
These examples are just a few of the many steps that we have taken to demonstrate that we are listening to our
shareholders, taking sustainable actions that are sensible and create value for our stakeholders, and delivering on our
strategic plans.

Your Vote Matters
I urge you to promptly cast your vote. You may do so by either returning the enclosed Proxy Card or by the electronic or
telephone options described in our Proxy Statement. On behalf of our Board of Directors, thank you for your investment in
Martin Marietta. We look forward to continuing to deliver strong and responsible performance, innovation and growth to
our customers, shareholders and other stakeholders.
Sincerely,

C. Howard Nye
Chair of the Board, President and Chief Executive Officer