Page 8 - Martin Marietta - 2024 Sustainability Report

COMPANY OVERVIEW

2024 Sustainability Highlights and
Performance Milestones

GHG Reduction Goals Carbon Reduction Roadmap

• Our NET ZERO Ambition for 2050 now covers our In this report, we have provided increased, detailed
Scope 1 and 2 emissions across all of our businesses disclosure on our carbon transition pathway, including:
• Continued progress on achieving our Scope 1 and 2 • Continued our efforts to reduce reliance upon coal in
GHG reduction commitments for 2030 for our cement our cement kiln fuel mix which in 2024 was reduced
and Magnesia Specialties businesses to 6.7% of total usage
• The three wind turbines at our Woodville, OH lime
• At 0.550 net metric tonnes per metric tonne of facility were brought online in 2024, producing 7.18
cement, our carbon intensity from our remaining million kWh of power through year end resulting in a
cement plant continues to be better than the U.S. GHG reduction of approximately 2,100 tons
cement industry average
• More than 90% of our Type I/II customers have
• We completed our combined finish mill and silo converted to our Portland Limestone Cement (PLC),
projects at our Midlothian Cement Plant in , also known as Type 1L cement, which we estimate
2024 with initial estimates showing that this helped us reduce Scope 1 GHG emissions in our
equipment results in a 4 kWh/ton savings in power heritage cement business
consumption, directly reducing the plant’s Scope 2 • Deployed additional hybrid wheel loaders from
footprint John Deere and Caterpillar (CAT) across our operations,
• Increased our 2030 intensity reduction target for our which burn approximately 20% less fuel than a
remaining cement plant from 15% to 23% over its traditional diesel loader; we are also now operating
2 Electric/Hydraulic excavators which operate via an
2010 intensity
electric tether system

Other 2024 Highlights

• 99.9% of employees with ZERO reportable incidents, for TIIR of 0.65, making 2024 our new safest incident year on record
• Achieved a world-class lost time incident rate (LTIR) for the eighth consecutive year
• Completed implementation of our new Basic Safety Rules across our entire footprint and continued our drive toward
our stated goal of Zero Incidents
• No significant environmental notices of violation, with total companywide penalties less than $3,000
• In recognition of our success building and strengthening an inclusive workplace where employees of all backgrounds
feel valued, respected and engaged, we earned the Great Place to Work certification in 2024
• Continued to evolve and grow the Company’s Employee Resource Groups:
• Military and Veterans Community (MVC) - Launched a companywide flag campaign as well as a
month-long effort to raise awareness for mental health and led a Toys for Tots holiday drive;
Local MVC members were active in each Division while engaging in numerous community
events, including 5K races and Memorial Day flag placing events

• Women Who Build (WWB) - Celebrated Women’s History Month; launched a wellness campaign
during October Cancer Awareness Month and hosted a senior female business leader during a
virtual companywide meeting. Additionally, the group launched Women Who Read, a book club
focused on professional development texts
• MERGE (our Multi-Cultural ERG) - Celebrated Black History Month; strengthened and expanded
relationships with Ronald McDonald House Charities; and promoted Hispanic culture and heart
health during Hispanic Heritage Month

6 2024 SUSTAINABILITY REPORT