Page 61 - 2022 Sustainability Report

ENVIRONMENTAL STEWARDSHIP

Our Roadmap to our 2030 Targets and our NET ZERO
2050 Ambition

Our roadmap to achieving our reduction targets and our newly adopted ambition includes numerous actions we have
committed to, through current or recent investments and operational improvements, as well as future steps we are
evaluating, including:

Coal replacement and tire derived fuel (TDF) investments • Using recaptured gypsum helped to divert 64,374 tons
• In the last five years we have invested in tire handling from overburdened landfills in 2022
systems at both the Midlothian and Hunter Cement
Capital investments in more efficient, lower
plants and in 2022 tires made up almost 25% of our
emission transportation systems and emissions
fuel mix. We are currently permitting additional tire
reduction equipment
handling upgrades at the Hunter facility
• Reduced fuel use in our aggregates business by converting
• We are in the final stages of construction of a larger
from quarry trucks to conveyor belt systems in multiple
natural gas line to the Hunter Cement Plant which is
locations, right-sizing trucks and installing fleet
now expected to be completed in the first half of 2023
management software
and will further reduce our coal usage
• We purchased two (2) additional 944K John Deere
• We have reduced coal in the fuel mix at our cement
hybrid wheel loaders and now operate a total of seven
plants from a high of almost 70% to 15%
(7) across our footprint. We continue to evaluate them
Use of additional alternative fuels, including the in a variety of conditions. Initial results are promising and
purchase of wind energy and other renewables it appears they are 20% more fuel efficient than a
• In 2022 we continued to make use of B99 Biodiesel in our comparable traditional diesel loader. We are working
Midwest Division and emitted 5600 fewer metric tonnes with our other heavy equipment vendors as they develop
of fossil fuel CO than if we had used ordinary diesel their own heavy electric and hybrid vehicle technology
2
• At our Woodville, Ohio lime Magnesia Specialties plant • Continued upgrading our mobile equipment fleets to
we have embarked on a wind energy project that will newer, cleaner burning equipment
provide much of the power needed to operate the Operational improvements
facility. We expect this projected to be operational in the
• Adding slag to our process, using our CemStar patented
first half of 2023
technology. In 2022, the slag addition represented
• We are currently evaluating both wind and solar power almost 4% of our clinker production
projects in our cement businesses
• We are currently undertaking a $135 million
Rollout of PLC Cement modernization of our Finish Mill 7 at the Midlothian
• With the approval of PLC Cement by both CALTRANS and Cement plant, which will increase efficiency and reduce
TXDOT, in 2022 we embarked on a rollout of this product energy consumption at the facility
• By the end of 2022, we had converted 90% of our Type Investments in our business to develop and market
I/II customers to our Type 1L (PLC) product
products that deliver meaningful environmental
• PLC cements may reduce the GHG footprint of our benefits, including reducing emissions and chemical use
cement product line up to 10%
• Scrubber stone produced by our limestone operations
is used by power producers in controlling sulfur
Continued use of synthetic gypsum as a substitute
dioxide emissions
for natural gypsum
• Products manufactured by our magnesia specialties
• Synthetic gypsum is a byproduct of flue gas
business assist in purifying industrial and municipal
desulfurization (FGD) — a scrubbing technology utilized wastewater, controlling sulfur dioxide in power plant gas
by many coal-fired power plants to reduce SO 2
streams, neutralizing nuclear waste and reducing
• In 2022 we reduced our need for mined gypsum by 68% chemical usage and wood demand in paper production
over 2017

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