Page 40 - 2021 Sustainability Report

ENVIRONMENTAL STEWARDSHIP

This level of Scope 1 CO e emissions constitutes less than 4 percent of total GHG emissions attributed to the cement
2
industry in the United States, as reported to the USEPA in 2020. Our 2021 Scope 2 CO e emissions were 0.553 million
2
metric tonnes across all business lines. On a global basis, the emissions from our cement business constitute less than 0.2
percent of the worldwide CO e emissions from cement production and our combined Scope 1 and 2 emissions for our
2
entire business is only a fraction of those of our global competitors as shown in the chart below. 1
Select Examples of Scope 1 and 2 GHG Footprints (million metric tonnes CO e)
2
277.8

129
77.58
49.3 42.4 35.5
5.1
China Nat Mat Lafarge Holcim Heidelberg Ultratech CEMEX CRH Martin Marietta

Sources: 2019 Annual Reports, Sustainability Reports, USGS, USEPA and PCA

Put succinctly, we are a very small contributor to the CO 2 e emissions attributed to the global cement sector. This is
consistent with the fact that our cement operations represent a small share of our overall business. In fact, those
operations, together with our Magnesia Specialties business, accounted for approximately 14 percent of our consolidated
revenue in 2021, exclusive of the two months of contribution from the two California cement plants. This is in stark
contrast to other operators in the cement sector who have a substantially greater number of cement plants, total GHG
emissions, and percentage of their revenue derived from such cement operations.

Mar n Marie a aggregates, Mar n Marie a cement plants
concrete and asphalt plants

The small size of our heritage cement operations compared to our overall business — both in terms of
2
revenue and production — is an important and significant differentiator between Martin Marietta and
other companies operating in the cement industry. Our cement business:

• Operates from two modernized, efficient plants, • Has a carbon intensity better than the U.S. cement
both in the state of Texas, that have benefitted industry average
from more than $1 billion in investments since
• Represents 59 percent of our gross CO 2 e emissions,
2008
but still less than 0.2 percent of total GHG
• Accounts for 9.1 percent of our consolidated emissions from the cement industry worldwide
revenue in 2021

1 Total estimated GHG emissions attributed to the cement industry in 2020 worldwide were 1.5 gigatonnes or, 1,500 million metric tonnes, of CO 2 e
according to R.M. Andrew of the Global Carbon Capture Project.
2 The Scope 1 GHG totals do not include any of the assets acquired in October 2021 and held for sale in 2022 due to the short period of ownership.

38 2021 SUSTAINABILITY REPORT