Page 7 - 2023 Sustainability Report

COMPANY OVERVIEW

2023 Sustainability Highlights and
Performance Milestones

GHG Reduction Goals Carbon Reduction Roadmap

• Established new NET ZERO Scope 1 Ambition for In this report, we have provided increased, detailed
2050, in addition to existing NET ZERO Scope 2 disclosure on our carbon transition pathway, including:
Target for 2050 established in 2021 – our NET ZERO • Continued our efforts to reduce reliance upon coal in
Ambition now covers our Scope 1 and 2 emissions our cement kiln fuel mix which in 2023 was reduced
across all of our businesses from 15% to 9% of total usage year over year
• Continued progress on achieving our Scope 1 and 2 • Completed construction of wind turbines at our
GHG reduction commitments for 2030 for our cement Woodville, OH facility which are projected to reduce
and Magnesia Specialties businesses GHG emissions by up to 10,000 metric tons per year
• At 0.619 net metric tonnes per metric tonne of and approximately 40% of the plant’s energy needs
cement, our carbon intensity from cement operations • Converted more than 90% of our Type I/II cement
continues to be better than the U.S. cement industry customers in Texas to PLC, also known as Type 1L,
average and represents a 25.9% reduction in our which we estimate contributed to the 10.8% year
carbon intensity since 2010 over year reduction in Scope 1 GHG emissions in our
heritage cement business
• Have deployed 32 hybrid wheel loaders from John Deere
and Caterpillar (CAT) across our operations. These
loaders are approximately 20% more fuel efficient than
a comparable traditional diesel loader
* Undertook a variety of efficiency projects that will reduce
our Scope 2 GHG emissions such as our Eden Prairie, MN
asphalt plant upgrade which resulted in a 39.6%
reduction in energy consumption at that location
Other 2023 Highlights

• 99.1% of employees with ZERO reportable incidents, for TIIR of 0.78, tying our safest incident year on record
• Achieved a world-class lost time incident rate (LTIR) for the seventh consecutive year
• Launched a company-wide Safety Task Force to further focus our teams to achieve continuous improvement and drive
toward our stated goal of Zero Incidents
• No significant environmental notices of violation, with total company-wide penalties less than $1,000
• Completed a companywide inclusion and engagement awareness communications campaign to help managers and
employees better understand the importance of these values in Martin Marietta’s culture. The campaign highlighted
that ensuring we maintain an inclusive and engaging culture will help create a competitive advantage for the
Company
• Successfully launched Martin Marietta’s first three Employee Resource Groups:

• Created and filled a new Employee Engagement Manager position to support companywide inclusion and
engagement programs, reporting to the company’s Head of Inclusion and Engagement

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