Page 52 - 2021 Sustainability Report

ENVIRONMENTAL STEWARDSHIP

Before signing the formal agreement, One Energy worked with Martin Marietta to conduct a series of feasibility studies.
The studies took into account a wide number of factors, including the turbines’ potential shadow and noise impacts and
the potential for ice to become hazardous and/or affect turbine performance during the colder months.

One Energy Senior Vice President and Head of Project Planning and Technology Jessica Grosso said the turbines will be
positioned to perform safely and optimally. Once up and running, the turbines will immediately help the Woodville plant
meet its energy needs, Grosso said. Though their impact will vary from month to month based upon seasonal weather
conditions, on average, the turbines are expected to annually create 14 million kilowatt hours (kWh), or enough energy to
run approximately 1,200-1,350 average-sized homes.

Weaver said safely maintaining the turbines was one of Magnesia Specialties’ chief concerns when first learning about the
technology. Quickly, however, the Lime and Stone team found that safety at One Energy is just as important as it is at
Martin Marietta.

Grosso said the Ohio-based company has experienced no lost-time injuries and just one recordable injury since opening in
2009.

“One Energy is vertically-integrated, meaning we don’t just design these turbines, we do all of the development work up
front, perform the construction and then handle all of the maintenance,” she said. “The reason we’ve built our company
this way is because it allows us to prioritize safety. It allows us to uphold our own high standards and not rely on the
practices of a contractor.”

One Energy will fund the installation of the turbines and
Martin Marietta has signed a 20-year
then provide the region about $27,000 in additional
annual tax revenue. Beyond that, however, One Energy will contract with One Energy, meaning
create one $5,000 Megawatt Scholarship for each turbine the scholarships will assist at least 60
to be awarded to local college-bound students during each students in the Woodville area who
year the turbines are in operation. Martin Marietta has plan to enter a STEM field (science,
signed a 20-year contract with One Energy, meaning the
scholarships will assist at least 60 students in the Woodville technology, engineering and
area who plan to enter a STEM field (science, technology, mathematics) and provide total
engineering and mathematics) and provide total college aid college aid of at least $300,000.
of at least $300,000.

“We have long valued our partnership with the people of Woodville and very much appreciate this opportunity to give
back to the community,” said Magnesia Specialties Division President Chris Samborski. “As we move forward, these wind
turbines will significantly reduce our environmental impact and bring substantial tax benefits to the town. Additionally,
the Megawatt Scholarship will provide support to dozens of our local students over the course of our contract with One
Energy. The overall impact of this project will be truly great.”

50 2021 SUSTAINABILITY REPORT